1
GATE EE 1996
MCQ (Single Correct Answer)
+2
-0.6
A coil (which can be modeled as a series $$RL$$ circuit) has been designed for high $$-$$ $$Q$$ performance at a rated voltage and a specified frequency. If the frequency of operation is doubled, and the coil is operated at the same rated voltage, then the $$Q$$$$-$$factor and the active power $$P$$ consumed by the coil will be affected as follows
A
$$P$$ is doubled, $$Q$$ is halved
B
$$P$$ is halved, $$Q$$ is doubled
C
$$P$$ remains constant, $$Q$$ is doubled
D
$$P$$ decreased $$4$$ times, $$Q$$ is doubled
2
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
The v - i characteristic as seen from the terminal pair (A,B) of the network of Fig.(1) is shown in Fig.(2). If an inductance of value 6 mH is connected across the terminal - pair (A,B), the time constant of the system will be GATE EE 1996 Electric Circuits - Network Elements Question 60 English
A
3 µ sec
B
12 sec
C
32 sec
D
unknown, unless the actual network is specified
3
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
An advantage of a permanent magnet moving coil instrument is that it is
A
free from friction error
B
has high (torque/weight of the moving parts) ratio
C
has low (torque/weight of the moving parts) ratio
D
can be used on both a.c. and d.c.
4
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
The scale of a voltmeter is uniform. Its type is
A
moving iron
B
induction
C
moving coil permanent magnet
D
moving coil dynamometer
EXAM MAP