Q1:-In a series a.c. circuit the voltage across a pure capacitor is 12V and the voltage across a pure resistance is 5V. Then the supply voltage will be _________.
13V
17V
7V
2.7V
Q3:-A permanent magnet moving coil ammeter has a coil resistance of 99 ohm and Full Scale Deflection (FSD) current of 0.6mA with shunt resistance of 1 ohm. Current through the meter at 0.5 F.S.D is:-
0.007mA
0.05mA
0.3mA
0.01mA
ANSWER:-0.3mA
ANSWER:-120 degree
17V
7V
2.7V
ANSWER:-13V
Q2:-What will be the largest number of 100W electric light bulbs which can be operated from a 200V supply fitted with a 13A fuse?
16
26
31
32
26
31
32
ANSWER:-26
Q3:-A permanent magnet moving coil ammeter has a coil resistance of 99 ohm and Full Scale Deflection (FSD) current of 0.6mA with shunt resistance of 1 ohm. Current through the meter at 0.5 F.S.D is:-
0.007mA
0.05mA
0.3mA
0.01mA
ANSWER:-0.3mA
Q4:-A time–varying flux causes an induced electromotive force". What law does this statement represent?
1.Ampere's law
2.Faraday's law
3.Lenz's law
4.Field form of Ohm's law
1.Ampere's law
2.Faraday's law
3.Lenz's law
4.Field form of Ohm's law
ANSWER:-Faraday's law
Q5:-In a 3 phase controlled bridge rectifier,each thyristor conducts for the period of maximum of _____________.
60 degree
180 degree
120 degree
90 degree
60 degree
180 degree
120 degree
90 degree
ANSWER:-120 degree
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