33 views
in Electrical Engineering by
Two 220 volt lamps, one of 60 watt and the other of 75 watt are connected in series across a 440 volt supply. The potential difference across 60 watt lamp will be: A) 195 volt B) 220 volt C) 245 volt D) 440 volt

Your answer

Thanks for your contribution. Feel free to answer this question. Please avoid short answer. Your answer is most welcome. Be genuine.

Upload image or document:

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
Are you a robot ? (Y = Yes / N = No)
To avoid this verification in future, please log in or register.

1 Answer

0 votes
by

Two 220 volt lamps, one of 60 watt and the other of 75 watt are connected in series across a 440 volt supply. The potential difference across 60 watt lamp will be: 245 volt

Related questions

2 answers 27 views

Three lamps are connected in parallel across a 120 Volt source. If one lamp burns out, the remaining two will be: A. Glow dimmer B. Glow brighter C. Not light D. Glow with the same brightness as before

asked Apr 12, 2018 in Electrical Engineering by Shimroz123
1 answer 48 views

Two 100W, 200V lamps are connected in series across a 200V supply. The total power consumed by each lamp will be in Watts

asked May 8, 2018 in Electrical Engineering by Shimroz123
0 answers 440 views

A 220 V, 200 W bulb and a 220 V, 100 W bulb are connected in series across a 220 V supply, the power consumed by them will be (a) 33.3 W (b) 66.6 W (c) 100 W (d) 300 W

asked May 25, 2018 in Electrical Engineering by Shimroz123
1 answer 14 views

Two incandescent light bulbs of 40 Wand 60 W rating are connected in series across the mains, then .  A) The bulbs together consume 100 W B) The bulbs together consume 50 W C) The 60 W bulb glows brighter D) The 40 W bulb glows brighter

asked May 20, 2018 in Network Analysis by Shimroz123
1 answer 28 views

Two light bulbs are connected in series across a 120 V battery. Bulb 1 uses 40 W of power and Bulb 2 uses 20 W of power. If bulb 1 alone is connected to the 120 V source, then it will consume (A) 90 W (B) 80 W (C) 60 W (D) 180 W

asked Apr 25, 2018 in Electrical Engineering by Shimroz123
1 answer 16 views

Two resistances Rl and Ri are connected in series across the voltage source where Rl>Ri. The largest drop will be across?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 20 views

A coil of inductance 240 mH and resistance 75 Ohm is connected in parallel with a capacitor across a 30 V, variable frequency supply. The current drawn by the circuit is found to be minimum when the supply frequency is 1 kHz. The approximate values of Q-factor and bandwidth are, respectively (A) 40, 400 Hz (B) 10, 100 Hz (C) 20, 50 Hz (D) 50, 20 Hz

asked Apr 25, 2018 in Electrical Engineering by Shimroz123
1 answer 28 views

Two series resistors are connected to an ac source. If there are 7.5 V rms across one resistor and 4.2 V rms across the other, the peak source voltage is? A.16.54 V B.1.65 V C.10.60 V D.5.93 V

asked May 15, 2018 in Basic concepts by Shimroz123
0 answers 22 views

In a series RLC circuit, the rms value of voltage across the resistor is 30 V, across the inductor is 60 V and across the capacitor is 20 V. The rms supply voltage would be (A) 110 V (B) 10 V (C) 220 V (D) 50 V

asked Apr 14, 2018 in Electrical Engineering by Shimroz123
1 answer 17 views

A 35 V dc supply is connected across a resistance of 600 ohm in series with an unknown resistance R. A voltmeter having a resistance of 1.2 kOhm is connected across 600 ohm resistances and reads 5 V. The value of resistance R shall be:

asked May 22, 2018 in Electrical Engineering by Shimroz123
1 answer 29 views

Two condensers of capacity 2F and 3F are connected in Series and a third condenser of 1F is connected in parallel to them. The resultant capacity will 

asked Mar 29, 2018 in Electrical Engineering by Shimroz123
1 answer 18 views

Two non -inverting amplifiers, one having a unity gain and the other having again of twenty are made using identical operational amplifiers. As compared to the unity gain amplifier, the amplifier with gain twenty has

asked Apr 29, 2018 in Electrical Measurements and Instrumentation by Shimroz123
0 answers 121 views

Two heater wires of equal length are connected first in series and then in parallel. The ratio of heat generated from series to parallel connection will be (a) 4 : 1 (b) 2 : 1 (c) 1 : 2 (d) 1 : 4

asked May 25, 2018 in Electrical Engineering by Shimroz123
1 answer 13 views

Three 60 W bulbs are in parallel across the 230 V power line. If one bulb burns out

asked May 14, 2018 in Electrical Engineering by Shimroz123
1 answer 24 views

The primary winding of a 220/6 V, 50 Hz transformer is energised from 110 V, 60 Hz supply. The secondary output voltage will be; (A) 3.6 (B) 2.5 V (C) 3.0 V (D) 6.0 V

asked Apr 9, 2018 in Electrical Engineering by Shimroz123
1 answer 18 views

Three equal impedances are first connected in delta across a 3 -phase balanced supply. If the same impedances are connected in star across the same supply then,

asked Apr 23, 2018 in Electrical Engineering by Zeeshan
0 answers 38 views

A balanced Delta connected load supplied with 440 V 50 Hz three phase AC supply has R=10 Ohm and L=0.6 mH in is each arm. Calculate line and phase current, active power.

asked Aug 12, 2018 in Basic electrical and electronics engineering by Quiz
1 answer 33 views

Two heaters, rated at 1000 W, 250 V each are connected in series across a 250 V, 50 Hz ac mains. The total power drawn from the supply would be __________ watt.

asked Mar 31, 2018 in Control System by Shimroz123
0 answers 23 views

A diode D, resistor R and inductor L and a switch S are connected in series.When a voltage V is applied across the circuit and switch is put on, the voltage across L changes as  A) V(1-exp(-t R/L)) B) Vexp(-t R/L) C) Ldi/dt +Ri D) V(1-t R/L)

asked Apr 9, 2018 in Electronics Engineering by Shimroz123
0 answers 16 views

A dc series motor when connected across an AC supply will (1) Develop torque in same direction (2) Not develop any torque (3) Draw dangerously high current (4) Develop a pulsating torque 

asked Apr 11, 2018 in Electrical Engineering by Shimroz123
1 answer 21 views

Three 60 W bulbs are in parallel across the 60 V power line. If one bulb burns open?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 28 views

The primary winding of a 220/6 V, 50 Hz transformer is energised from 110 V, 60 Hz supply. The secondary output voltage will be (A) 3.6 V. (B) 2.5 V. (C) 3.0 V. (D) 6.0 V.

asked May 22, 2018 in Transformer by Shimroz123
1 answer 13 views

A bulb in a staircase has two switches, one switch being at the ground floor and the other one at the first floor. The bulb can be turned ON and also can be turned OFF by any one of the switches irrespective of the state of the other switch. The logic of switching of the bulb resembles  (A) and AND gate (B) an OR gate (C) an XOR gate (D) a NAND gate

asked May 18, 2018 in Digital Electronics by Shimroz123
0 answers 12 views

Two voltmeters of same range, one moving iron type and other permanent magnet moving coil type, are connected in parallel for measuring a.c. supply voltage. If the reading of MI type is 300V, the reading of PMMC type will be (a) zero (b) higher-than M.I. type (c) lower than M.I. type (d) same

asked May 25, 2018 in Electrical Measurements and Instrumentation by Shimroz123
0 answers 58 views

Two d.c. series motors connected in series are driving a mechanical load. If the motors are connected in parallel to drive the same load, the speed becomes  (a) slightly less than double (b) slightly less than half (c) slightly more than double (d) slightly more than half 

asked May 25, 2018 in Electrical Engineering by Shimroz123
1 answer 13 views

In an AC circuit, the voltage across R, L and C are 30 V, 60 V and 20 V respectively. The applied voltage is (A) 70 V (B) 50 V (C) 60 V (D) 100 V

asked May 12, 2018 in Electrical Engineering by Shimroz123
1 answer 15 views

If a 220/440 V, 50 Hz, 5 KVA, single-phase transformer operates on 220V, 40Hz supply with secondary winding open circuited: (A) both the eddy current and the hysteresis losses will decrease (B) both the eddy current and the hysteresis losses will increase (C) eddy current losses will remain the same but the hysteresis losses will increase (D) eddy current losses will increase but the hysteresis losses will remain the same

asked Apr 11, 2018 in Computer Engineering by Shimroz123
1 answer 21 views

Two single-phase 150 kVA, 7200/ 600 volt transformers are connected in open-delta. The maximum three-phase load that they can carry is: A) 300 kVA B) 75 kVA C) 259 kVA D) 249 kVA

asked Jun 4, 2018 in Single phase transformer by Shimroz123
0 answers 50 views

A single phase transmission line and a telephone line are both symmetrically strung one below the other, in horizontal configurations, on a common tower, The shortest and longest distances between the phase and telephone conductors are 2.5 m and 3 m respectively. The voltage (volt/km) induced in the telephone circuit, due to 50 Hz current of 100 amps in the power circuit is (A) 4.81 (B) 3.56 (C) 2.29 (D) 1.27

asked May 25, 2018 in Power system by Shimroz123
1 answer 19 views

With a 12 V supply, a silicon diode, and a 370 - ohm resistor in series, what voltage will be dropped across the diode? a) 0.3V b) 0.7V c) 0.9V d) 1.4V

asked Apr 14, 2018 in Instrumentation and control by Shimroz123
1 answer 14 views

Two resistance 100Ω ± 5Ω ± 15Ω are connected in series. If the errors are specified as standard deviations, the resultant error will be

asked Apr 1, 2018 in Electrical Engineering by Shimroz123
1 answer 27 views

A string of five resistors connected in series is connected across a 6 V battery. Zero voltage is measured across all the resistors except the third resistor. The voltage across the third resistor is: A. 0 V B. 1.2V C. 6V D. 0.6V

asked Apr 12, 2018 in Electrical Engineering by Shimroz123
1 answer 53 views

Three equal resistors connected in series across a source of emf together dissipate 10 watts of power. What would be the power dissipated in the same resistors when they are connected in parallel across the same source of emf? 

asked Mar 31, 2018 in Electrical Engineering by Shimroz123
0 answers 29 views

When two alternators A and B are operating in parallel, the increase in steam supply to alternator A will cause the active power output of (1) Alternator A to be decreased and alternator B to be increased (2) Alternators A and B is not affected (3) Alternators A and B is increased (4) Alternator A to be increased and alternator B to be decreased

asked Apr 11, 2018 in Electrical Engineering by Shimroz123
1 answer 18 views

What is the slip (as a percentage) when a 6 pole single phase induction motor operating on 220 V and 60 Hz is rotating at speed of 1140 rpm? A) 60% B) 5% C) 10% D) None of these

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
0 answers 52 views

A 220 kV, 3 phase transmission line is 60 km long. The resistance is 0.15 ohm / km and the inductance is 1.4 mH / km. Use the short line model to find the power at the sending end when the line is supplying a three phase load of 300 MVA at 0.8 pf lagging at 220 kV.  (A) 5.58MW (B) 80MW (C) 85.58MW (D) 74.42 MW 

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
1 answer 80 views

Consider a circuit with three parallel branches connected across a DC supply. What is the ratio of the branch currents I1 : I2 : I3 if the branch resistances are in the ratio of 2 : 3 : 4 respectively? A) 2 : 3 : 4 B) 6 : 4 : 3 C) 4 : 3 : 2 D) None of these

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 34 views

Two coils connected in series have resistance of 600 ohm and 300 ohm and temperature coefficients of 0.1% and 0.4% respectively.The resistance of the combination at 50oC will be 

asked Mar 31, 2018 in Electrical Engineering by Shimroz123
1 answer 23 views

We connected a 35V dc supply to a resistance of 600 Ohm in series with an unknown resistance R.A. voltmeter having a resistance of 1.2 kOhm is connected across 600 Ohm resistance and read 5v. The value of resistance R will be

asked May 8, 2018 in Electrical Engineering by Shimroz123
0 answers 70 views

The power in a 3-phase load is measured by two watt meters. If one watt meter reads zero, then the load power factor is (A) Zero (B) 0.5 (C ) 0.866 (D) unity 

asked Jun 4, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 10 views

Which of the following series combinations of resistors dissipates the most power when connected across a 120 V source? A. One, 220Ω resistor B. Two, 220Ω resistors C. Three, 220Ω resistors D. Four, 220Ω resistors

asked Apr 12, 2018 in Electrical Engineering by Shimroz123
0 answers 20 views

One 200 V, 100 W bulb is connected in series with primary of a 200 V, 10 kVA transformer. If its secondary is kept open circuited, then the bulb would have (1) Full brightness (2) Poor brightness (3) A little less than full brightness (4) More than full brightness 

asked Apr 11, 2018 in Electrical Engineering by Shimroz123
0 answers 20 views

A resistor connected across the gate and cathode of an SCR in a circuit increases its (A) dv/dt rating (B) Holding current (C) Noise Immunity (D) Turn-off time

asked Apr 14, 2018 in Electrical Engineering by Shimroz123
1 answer 23 views

Five cells, each with an e.m.f. of 2V and internal resistance of 0.5Ω are connected in series. The resulting battery will have

asked May 14, 2018 in Electrical Engineering by Shimroz123

Welcome to electronics2electrical.com here you can ask questions related to electrical, electronics, mechanical, telecommunication, instrumentation, computer, mathematics, physics etc.
Be respectful to all the members. Do not copy and paste the answers from other websites which have copyright content. While asking question give full details about it.

Categories

Most popular tags

power motor dc circuit transformer voltage current used system phase resistance factor synchronous load ac energy induction electric generator series frequency between speed capacitor use electrical meter line difference control type mosfet transmission magnetic plant high single instrument bjt unit source advantages function diode and machine winding field define torque parallel amplifier supply shunt thyristor motors electricity arduino maximum time relay armature problem value on transformers types coil diagram state flow ratio material three formula starting direction theorem method emf operating efficiency digital wave microprocessor test instruments inductance loss measure operation connected signal low applications effect single-phase network temperature working constant losses different law wattmeter measuring compare controlled breaker drive device logic rc full switch flux wire resistivity disadvantages free of materials machines angle force converter conductor transistor gain open protection scr core measurement number bridge principle generators reactance circuits negative the friction iron loop short pole battery conservation steam resistors hysteresis computer using analog lines secondary station gate a rectifier inverter linear induced relays nuclear capacitance basic characteristics design direct work rotor electronics ammeter forces diesel damping rlc connection factors capacitors minimum insulation moving regulation running self systems air fault range main stability quality starter igbt eddy alternator ideal rl average 3-phase plants arc thermal error fuzzy biasing dielectric pressure balanced superposition errors copper rotation feedback impedance measured electronic electrons charge inductive transfer explain start off back curve over solar is three-phase tariff locomotive peak bias zener engineering commutator surge conductors rating universal potentiometer density permanent mechanical transducer capacity memory adc excitation two fuse pure harmonics application semiconductor inductor internal pmmc reaction welding resonance traction permeability breakers rms designed electromagnetic si generation brushes switching capacitive shaded rate 1 distribution resistor methods delta star oscillator reluctance simplification algebra 8085 boolean weston dynamometer insulating strength installation definition fuel heating earth units

8,450 questions

7,047 answers

133 comments

3,086 users

...