43 views
in Electrical Engineering by
A dc voltmeter has a sensitivity of 1000 Ohm/V. When it measures half full scale in 100 V range, the current through the voltmeter is

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

A dc voltmeter has a sensitivity of 1000 Ohm/V. When it measures half full scale in 100 V range, the current through the voltmeter is 1 mA.

Related questions

0 answers 19 views

The full scale range of PMMC voltmeter is 100 V and its sensitivity is 1000 Ω/V. If the meter reads 50 V, the current through the voltmeter is (A) 0.05 mA (B) 0.5 mA (C) 5 mA (D) 50 mA 

asked Jun 4, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 52 views

A digital voltmeter has a read-out range from 0 to 9999 counts. When full scale reading is 9.999 V, the resolution of the instrument will be (a) 100 mV (b) 99 mV (c) 9 mV (d) 1 mV 

asked May 26, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 30 views

A 220 V dc machine has an armature resistance o f 1-ohm. If the full load current is 20A, the difference in the induced voltage when the machine is running as a motor, and as a generator is

asked Apr 1, 2018 in Electrical Engineering by Shimroz123
0 answers 23 views

A 1mA D' Arsonval movement has resistance of 100 Ω. It is to be converted to a 10 V voltmeter. The value of multiplier resistance is  (A) 999 Ω (B) 9999 Ω (C) 9900 Ω (D) 990 Ω 

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
0 answers 31 views

An ammeter of 0-25 A range has a guaranteed accuracy of 1% of full scale reading. The current measured 5 A The limiting error is  A) 2% B) 2.5% C) 4% D) 5%

asked Apr 9, 2018 in Electronics Engineering by Shimroz123
0 answers 19 views

DC ammeter has a resistance of 0.1 Ω and its current range is 0-100 A. If the range is to be extended to 0-300 A, what shunt resistance need to be connected?  A) 0.025 Ω B) 0.05 Ω C) 0.015 Ω D) 0.03 Ω

asked Apr 9, 2018 in Electrical Engineering by Shimroz123
1 answer 27 views

What is the line current of a circuit when the current transformer of 1000 : 5 rating measures 4 amp? (A) 5000 amp (B) 1000 amp (C) 400 amp (D) 800 amp 

asked Apr 23, 2018 in Instrumentation and control by Shimroz123
1 answer 15 views

In a 2 kW, 200 V, 1000 rpm. DC series motor the torque at full load was found to be 0.3 N -m. The torque at half full load in N -m is :

asked Apr 29, 2018 in Electrical Machine by Shimroz123
1 answer 19 views

A 0 to 300V voltmeter has a guaranteed accuracy of 1% of full scale reading. The voltage measured by the instrument is 83V. The percentage limiting error is

asked Mar 28, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 37 views

A 150 kW electric motor has an efficiency of 92 %, when it operates at full load. Calculate the losses in the machine.  (A) 92 kW (B) 150 kW (C) 163 kW (D) 13 kW 

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
1 answer 21 views

A permanent magnet moving coil ammeter has a coil resistance of 99 ohm and Full Scale Deflection (FSD) current of 0.1mA. Shunt resistance is 1 ohm. Current through the meter at 0.5 F.S.D is:

asked May 22, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 205 views

An ac voltmeter using full -wave rectification and having a sinusoidal input has an ac sensitivity equal to  (1) 1.414 times dc sensitivity (2) dc sensitivity (3) 0.9 times dc sensitivity (4) 0.707 times dc sensitivity

asked Apr 30, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 13 views

An ammeter has a current change of 0—5A and its internal resistance is 0.2 ohm. In order to Change the range to 0-25 A, wear need to add a resistance of  A) 0.8 ohm in series with the meter B) 1.0 ohm in series with the meter C) 0.04 ohm in parallel with the meter D) 0.05 ohm in parallel with the meter

asked May 20, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 5 views

As shown in the figure, 1 ohm resistance is connected across a source that has a load line v + i = 100. The current through the resistance is A) 25 A B) 50 A C) 100 A D) 200A

asked May 20, 2018 in Network Analysis by Shimroz123
1 answer 13 views

An analog voltmeter has a sensitivity of 10kΩ/volt. The galvanometer used in constructing the instrument will produce a full scale deflection when the current passed through it is  (a) 10 mA (b) 20 mA (c) 50 mA (d) 100 μA

asked May 15, 2018 in Digital Instrumentation by Shimroz123
0 answers 61 views

The capacitance of 0-1000V electrostatic voltmeter increases from 36-42 pF from zero to full scale deflection. It is required to extend the range of voltmeter to 10000 V by using an external series capacitor. What should be the value of series capacitor?  (A) 0.8 pF (B) 1.00 pF (C) 6.644 pF (D) 4.667 pF 

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
1 answer 14 views

A moving coil instrument of resistance 5 Ohm requires a potential difference of 75 mV to give a full scale deflection. The value of shunt resistance needed to give a full scale deflection at 30 A is

asked Apr 23, 2018 in Electrical Engineering by Shimroz123
1 answer 25 views

A moving coil instrument has a resistance of 10 W and gives full scale deflection when carrying a current of 50 mA. To measure current upto 100 A, we will have to connect • 10 W resistance in series • 10 W resistance in parallel • 10/1999 W resistance in series • 10/1999 W resistance in parallel

asked May 13, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 19 views

When a sine wave has a frequency of 100 Hz in 12 s it goes through? A.1/100 cycle B.12 cycles C.120 cycles D.1,200 cycles

asked May 15, 2018 in Basic concepts by Shimroz123
1 answer 36 views

A 200 V dc shunt motor is running at 1000 rpm and drawing a current of 10 A. Its armature winding resistance is 2 Ohm. It. is braked by plugging. The resistance to be connected in series with armature to restrict armature current to 10 A, is

asked May 3, 2018 in Electrical Machine by Shimroz123
0 answers 92 views

 When The dc converter in figure shown has a resistance load of R = 10 Ω and the input voltage is Vs 220 V the converter switch remains on, its voltage drop is Vo -2 V. The chopping frequency is fI K sW Vs If the duty cycle is 50%, determine: (a) the average output voltage V (b) the RMS output voltage Vo (c) the converter efficiency (d) the effective input resistance of the converter

asked Apr 26 by Hussein
0 answers 22 views

The emf induced in a coil is 1 volt when current in it changes from 0 to 100 mA in time 10mS. Its inductance (in mH) value is  A) 10 B) 50 C) 100 D) 1000

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

A battery of 40 V and three capacitors of 1000 μF, 500 μF and 100 μF are all connected in (I) parallel and (II) series. The ratio of total charge stored in case I to that in case II is approximately  (a) 3 : 64 (b) 64 : 3 (c) 160 : 3 (d) 104 : 5

asked May 15, 2018 in Battery 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 40 views

When 7/0.029 V.I.R cable is carrying 20 A, a drop of 1 V occurs every 12 m. The voltage drop in a 100 m run of this cable when it is carrying 10 A is nearly  (a) 4.2 V (b) 3.2 V (c) 1.2 V (d) 0.42 V

asked Apr 25, 2018 in Electrical Engineering by Shimroz123
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
0 answers 41 views

If an energy meter disc makes 10 revolutions in 100 seconds when a load of 450W is connected to it, the meter constant in revolutions per kWh is  A) 1000 B) 500 C) 1600 D) 800

asked Apr 9, 2018 in Electrical Engineering by Shimroz123
0 answers 23 views

The output voltage of a battery drops from 100 V with zero load current to 80 V when load current is 2 A. The internal resistance of the battery is (a) 10 Ω (b) 20 Ω (c) 40 Ω (d) 50 Ω

asked May 25, 2018 in Battery by Shimroz123
1 answer 46 views

In a galvanometer, the deflection becomes one half when the galvanometer is shunted by a 20 ohm resistor. The galvanometer resistance is 

asked May 22, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 13 views

The ripple voltage in the output of a single phase half wave rectifier with 10 V rectified dc voltage with resistive load and without filter will be • 12.1 volt • 1.21 volt • 0.482 volt • 4.82 volt

asked May 13, 2018 in Electronics Engineering by Shimroz123
1 answer 31 views

The r.m.s. value of a half-wave rectified alternating current is 10 A. Its value for full-wave rectification will be  

asked May 25, 2018 in Electrical Engineering by Shimroz123
1 answer 92 views

A 0-10 A ammeter has a guaranteed accuracy of 1% of full scale deflection, the limiting error while reading 2.5 A will be (a) 1% (b) 2% (c) 4% (d) None of these 

asked May 26, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 10 views

A 1000 watts heater is connected to a 240 V AC Supply. Then the current drawn by the heater is

asked May 15, 2018 in Electrical Engineering by Shimroz123
0 answers 29 views

For an ADC, full scale output voltage is about 10 V.For a resolution of about 9.78mV, number of bits required is  A) 6 B) 8 C) 10 D) 12

asked Apr 9, 2018 in Electronics Engineering by Shimroz123
0 answers 23 views

A coil has 100 turns produces a flux change of 0.01 webers when current changes by 100mA. Its inductance (in H) value is  A) 5 B) 10 C) 1 D) 0.1

asked Apr 9, 2018 in Electronics Engineering by Shimroz123
1 answer 25 views

A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current decreases.

asked Nov 23, 2017 in Electrical Engineering by James
1 answer 24 views

A lamp of 100W at 200V is supplied current at 100 volts. It will be equivalent to the lamp of:   a. 50W b. 40W c. 25W d. 10W 

asked May 17, 2018 in Electrical Engineering by Shimroz123
1 answer 16 views

A disk has 500 bytes/sector,100 sectors / track, 20 heads and 1000 cylinders. Total capacity of disk is  (a) 1 GB (b) 100 MB (c) 10 MB (d) 10 GB

asked May 15, 2018 in Microprocessors and Microcontrollers by Shimroz123
1 answer 14 views

A d.c. source has an open circuit voltage of 30 V and an internal resistance of 1.5 Ohm. A resistive load is connected to the source. Maximum power dissipated in the load is (A) 300 W (B) 150 W (C) 45 W (D) 20 W

asked Apr 25, 2018 in Electrical Engineering by Shimroz123
1 answer 38 views

 A 1000 V/400 V power transformer has a nominal short-circuit voltage Vsc = 40%. Which one of the following statements is correct ?  (a) A voltage of 400 V appears across the short-circuited secondary terminals.  (b) A voltage of 16 V appears across the short-circuited secondary terminals.  (c) When the secondary ... current flows at the primary side at a primary voltage of 400 V.  (d) The primary voltage drops to 400 V, when the secondary terminals are short-circuited.

asked Apr 25, 2018 in Electrical Engineering by Shimroz123
1 answer 18 views

A moving coil meter has a resistance of 3 Ω and gives full scale deflection with 30 mA. To measure voltage up to 300 V, the external resistance to be connected in series with the instrument is (A) 9997 Ω (B) 10000 Ω (C) 997 Ω (D) 10003 Ω

asked Apr 28, 2018 in Power Electronic Controlled Drives by Shimroz123
1 answer 35 views

What would be the total power drawn from the supply, when two heaters, rated at 1000 W, 250 V each are connected in series across a 250 V, 50 Hz supply?  (A) 1000 W (B) 500 W (C) 250 W (D) 2000 W

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
0 answers 11 views

Series resistance required to read 0-250 V with a moving coil instrument of internal resistance 2 ohm and full scale deflection of 50 mA is (a) 49998 Ω (b) 4998 Ω (c) 498 Ω (d) 49.8 Ω

asked May 26, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 19 views

A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be

asked Mar 29, 2018 in Electrical engineering materials by Shimroz123
1 answer 11 views

A 100 pF capacitor has a maximum charging current of 150 μA.What is the slew rate ? (A) 1.5 V/μs (B) 1.05 V/μs (C) 0.15mV/s (D) 10.5 mV/s

asked Apr 25, 2018 in Electrical Engineering by Shimroz123
1 answer 9 views

An AC supply of 230 V is applied to half wave rectifier circuit. A transformer turns ratio is 20 : 1. Find i) Output DC voltage (ii) Peak Inverse Voltage (PIV)

asked Jul 10 in Elements of Electronics 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

8,471 questions

7,069 answers

134 comments

3,088 users

...