1
GATE EE 2012
MCQ (Single Correct Answer)
+2
-0.6
An analog voltmeter uses external multiplier settings. With a multiplier setting of $$20\,\,k\Omega ,$$ it reads $$440$$ $$V$$ and with a multiplier setting of $$80$$ $$k\Omega ,$$ it reads $$352$$ $$V.$$ For a multiplier setting of $$40$$ $$k\Omega ,$$ the voltmeter reads
A
$$371$$ $$V$$
B
$$383$$ $$V$$
C
$$394$$ $$V$$
D
$$406$$ $$V$$
2
GATE EE 2012
MCQ (Single Correct Answer)
+1
-0.3
The bridge method commonly used for finding mutual inductance is
A
Heaviside Campbell bridge
B
Schering bridge
C
De Sauty bridge
D
Wien Bridge
3
GATE EE 2012
MCQ (Single Correct Answer)
+1
-0.3
The slip of an induction motor normally does not depend on
A
rotor speed
B
synchronous speed
C
shaft torque
D
core-loss component
4
GATE EE 2012
MCQ (Single Correct Answer)
+2
-0.6
A single phase 10 kVA, 50 Hz transformer with 1 kV primary winding draws 0.5 A and 55 W, at rated voltage and frequency, on no load. A second transformer has a core with all its linear dimensions $$\sqrt2$$ times the corresponding dimensions of the first transformer. The core material and lamination thickness are the same in both transformers. The primary windings of both the transformers have the same number of turns. If a rated voltage of 2 kV at 50 Hz is applied to the primary of the second transformer, then the no load current and power, respectively, are
A
0.7 A, 77.8 W
B
0.7 A, 155.6 W
C
1 A, 110 W
D
1 A, 220 W