GATE EE 2003 | Basic of Indicating Instruments Question 27 | 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

For a given frequency, the deflecting torque of an induction ammeter is directly proportional to

current²

current³

$$\sqrt {current} $$

current

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