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 2004
MCQ (Single Correct Answer)
+2
-0.6
A moving iron ammeter produces a full scale torque of $$240$$ $$\,\mu Nm$$ with a deflection of $${120^ \circ }$$ at a current of $$10$$ $$A$$. The rate of change of self inductance $$\left( {\mu H/radian} \right)$$ of the instrument at full scale is
A
$$2.0\,\mu H/$$radian
B
$$4.8\,\mu H/$$radian
C
$$12.0\,\mu H/$$radian
D
$$114.6\,\mu H/$$radian
3
GATE EE 2004
MCQ (Single Correct Answer)
+2
-0.6
A moving coil of a meter has $$100$$ turns, and a length and depth of $$10$$ $$mm$$ and $$20$$ $$mm$$ respectively. It is positioned in a uniform radial flux density of $$200$$ $$mT.$$ The coil carries a current of $$50$$ $$mA.$$ The torque on the coil is
A
$$200\,\,\mu Nm$$
B
$$100\,\,\mu Nm$$
C
$$2\,\,\mu Nm$$
D
$$1\,\,\mu Nm$$
4
GATE EE 2004
MCQ (Single Correct Answer)
+1
-0.3
The circuit in fig is used to measure the power consumed by the load. The current coil and the voltage coil of the watt meter have $$0.02$$ $$\Omega$$ and $$1000$$ $$\Omega$$ resistance respectively. The measured power compared to the load power will be
A
$$0.4\%$$ less
B
$$0.2\%$$ less
C
$$0.2\%$$ more
D
$$0.4\%$$ more
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