GATE EE 2003 | Basic of Indicating Instruments Question 25 | Electrical and Electronics Measurement

GATE EE 2003

MCQ (Single Correct Answer)

-0.3

A Manganin swamping resistance is connected in series with a moving coil ammeter consisting of a milli-ammeter and a suitable shunt in order to

minimize the effect of temperature variation

obtain large deflecting torque

reduce the size of the meter

minimize the effect of stray magnetic fields

GATE EE 1998

MCQ (Single Correct Answer)

-0.3

A d.c. voltmeter has a sensitivity of $$1000$$$$\Omega /volt.$$ When it measures half full scale in $$100$$ $$V$$ range, the current through the voltmeter is

$$100$$ $$mA$$

$$1$$ $$mA$$

$$0.5$$ $$mA$$

$$50$$ $$mA$$

GATE EE 1998

MCQ (Single Correct Answer)

-0.3

A moving coil galvanometer is made into a d.c. ammeter by connecting

a low resistance across the meter

a high resistance in series with the meter

a pure inductance across the meter

a capacitor in series with the meter

GATE EE 1996

MCQ (Single Correct Answer)

-0.3

An advantage of a permanent magnet moving coil instrument is that it is

free from friction error

has high (torque/weight of the moving parts) ratio

has low (torque/weight of the moving parts) ratio

can be used on both a.c. and d.c.

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