Can you help by answering this question?

Which of the following is a non-impact printer?

421 views
in Instrumentation and control by
 Moving coil in dynamometer wattmeter connected : - a) in series with fixed coil b) across supply c) in series with load d) across load

1 Answer

0 votes
by

Moving coil in dynamometer wattmeter connected : - across supply

Related questions

1 answer 47 views

The potential coil of a single phase dynamometer wattmeter has 4840 Ohm resistance. Voltage across the load is 220 V. With the potential coil connected on the load side, the meter indicates 100 W. Approximate percentage error due to wattmeter connection is (A) 11% (B) 9% (C) 1.1% (D) 3%

asked Apr 25, 2018 in Instrumentation and control by Shimroz123
0 answers 16 views

A dynamometer type wattmeter with its voltage coil connected across the load side of instrument reads 250 W. If the load voltage be 200 V, what power is being taken by load? The voltage coil has resistance of 2000 Ω. (1) 200 W (2) 215W (3) 230 W /(4) 245 W

asked Apr 11, 2018 in Electrical Engineering by Shimroz123
1 answer 10 views

 In dynamometer type of wattmeter, which of the coil is split up into two parts?

asked May 29, 2018 in Electrical Measurements and Instrumentation by Shimroz123
0 answers 14 views

If a dynamometer wattmeter is connected in an ac circuit, the power indicated by the wattmeter will be (a) volt-ampere product (b) average power (c) peak power (d) instantaneous power 

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

The pressure coil of a dynamometer type wattmeter is  A) Highly inductive B) Highly resistive C) Purely resistive D) Purely inductive

asked May 20, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 14 views

 The main sources of Errors in Permanent Magnet moving Coil (PMMC) are due to : - a) weaking of the permanent magnet due to aging at temperature effects b) weaking of spring due to aging and temperature effects c) change of resistance of the moving coil with temperature d) all the above

asked Apr 14, 2018 in Instrumentation and control by Shimroz123
0 answers 16 views

The current coil of a wattmeter is connected to the C.T. of R phase. Its potential coil is connected across Y & B phases. The wattmeter measures (a) active power in R phase (b) active power of Y-phase (c) reactive power in R-phase (d) power proportional to 3-phase power if the load is balanced 

asked May 25, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 13 views

The current coil of a wattmeter is connected to the CT of R-phase. The potential coil is connected across Y and B phases. The wattmeter measures

asked Mar 28, 2018 in Electrical Measurements and Instrumentation by Shimroz123
0 answers 30 views
1 answer 8 views

State the effects of errors in dynamometer type wattmeter due to i) pc- inductance ii) pc- capacitance iii) mutual inductance iv) Connection.

asked Sep 6, 2018 by Shimroz123
1 answer 6 views

State any four errors that occur in dynamometer type wattmeter

asked Sep 6, 2018 by Shimroz123
1 answer 6 views

With neat diagram explain constructional details of dynamometer type wattmeter.

asked Sep 6, 2018 by Shimroz123
1 answer 9 views

Two wattmeter method is employed to measure power in a 3 -phase balanced system with the current coil connected in the A and C lines. The phase sequence is ABC. If the wattmeter with its current coil in A -phase line reads zero, then the power factor of the 3 -phase load will be

asked Apr 23, 2018 in Electrical Engineering by Shimroz123
1 answer 11 views

Name the material used for :- (i) Moving coil (ii) Permanent magnet in PMMC instrument.

asked Sep 6, 2018 by Shimroz123
1 answer 11 views

 In a household single phase induction type wattmeter, the meter can be reversed by: - a) reversing the supply terminals b) reversing the load terminal c) opening the meter connection and reversing either the potential coil terminals or current coil terminals d) opening the meter and reversing the connection of both the potential coil terminals and current coil terminals

asked Apr 14, 2018 in Instrumentation and control by Shimroz123
1 answer 12 views

A wattmeter is connected as shown in the figure. The wattmeter reads 

asked May 20, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 19 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 8 views

Consider the following statements  1) The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the current coil ii) The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the voltage coil circuit  A) (i) is true but (ii) is false B) (i) is false but (ii) is true C) Both (i) and (ii) are true D) Both (i) and (ii) are false

asked May 20, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 17 views

State the material used for moving coil and former for PMMC instruments. 

asked Sep 5, 2018 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
0 answers 10 views

Moving coil instruments have which one of the following scales ? (a) Logarithmic scale (b) Uniform scale (c) Non-uniform scale (d) Squared scale 

asked May 26, 2018 in Physics 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
1 answer 20 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 20 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
2 answers 13 views
1 answer 26 views

A moving coil of meter has 100 turns, and a length and depth of 10mm and 20mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carrier current capacity is 50 mA. The torque on the coil is

asked Apr 29, 2018 in Electrical Measurements and Instrumentation 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 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
0 answers 7 views

The deflecting torque of a moving coil instrument depends on (a) supply frequency (c) flux in the coil (b) inverse of area of coil (d) square of the voltage

asked Apr 14, 2018 in Electrical Engineering by Shimroz123
0 answers 50 views

A moving coli ammeter has a fixed shunt of 0.02 Ω with a coil circuit resistance of R=1 kΩ and needs potential of 0.5 V across it for full scale deflection. Calculate the value of shunt to give full scale deflection when the total current is 10 A. (1) 0.05 Ω (2) 0.005 Ω (3) 0.5 Ω (4) 0.0005 Ω

asked Apr 11, 2018 in Electrical Engineering by Shimroz123
1 answer 6 views

When a pure inductor is connected in series with a lamp circuit, effect is: -  a) Dimmer b) Brighter c) Same d) Fused

asked Apr 10, 2018 in Instrumentation and control by Shimroz123
1 answer 11 views

Gearing, blacklash, friction between moving parts and scale accuracies are generally known as  (a) Instrument errors (b) Interference errors (c) Calibration errors (d) Interaction errors

asked May 13, 2018 in Instrumentation and control by Shimroz123
1 answer 23 views

The Q factor of a coil at resonant frequency 1.5 MHz of an RLC series circuit is 150. The Bandwidth is : - a) 225 MHz b) 1.06 MHz c) 10 KHz d) 10 MHz

asked Apr 14, 2018 in Instrumentation and control by Shimroz123
1 answer 10 views

 The effective resistance of a coil at high frequency is more than its de resistance on account of : -  a) Skin effect b) Proximity effects c) Eddy current losses d) All the above

asked Apr 10, 2018 in Instrumentation and control by Shimroz123
1 answer 24 views

The primary coil of a transformer is connected to a 60 V ac source. The secondary coil is connected to a 330 ohms load. The turns ratio is 3:1. What is the secondary voltage? A.2 V B.20 V C.180 V D.18 V

asked May 15, 2018 in Basic concepts by Zeeshan

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 loss measure operation connected signal low applications effect single-phase network inductance 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
...