1
GATE EE 2004
MCQ (Single Correct Answer)
+1
-0.3
A galvanometer with a full scale current of $$10$$ $$mA$$ has a resistance of $$1000$$$$\Omega $$. The multiplying power (the ratio of measured current to galvanometer current) of a $$100$$$$\Omega $$ shunt with this galvanometer is
A
$$110$$
B
$$100$$
C
$$11$$
D
$$10$$
2
GATE EE 2003
MCQ (Single Correct Answer)
+1
-0.3
The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and the stray fields are
A
perpendicular
B
parallel
C
inclined at $${60^0}$$
D
inclined at $${30^0}$$
3
GATE EE 2003
MCQ (Single Correct Answer)
+1
-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
A
minimize the effect of temperature variation
B
obtain large deflecting torque
C
reduce the size of the meter
D
minimize the effect of stray magnetic fields
4
GATE EE 1998
MCQ (Single Correct Answer)
+1
-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
A
$$100$$ $$mA$$
B
$$1$$ $$mA$$
C
$$0.5$$ $$mA$$
D
$$50$$ $$mA$$
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