ISRO EC Exam 2017: Practice Quiz 9

The most commonly used transistor arrangement is……………arrangement.

The forbidden energy gap in a conductor is

It L/C ratio of a parallel LC circuit is increased, the Q of the circuit

In a parallel LC circuit at resonance, the circuit

A coil of wire of radius r has 600 turns and a self-inductance of 108 mH. Self-inductance of a similar coil of 500 turns will be

A 50 Hz alternating current of peak value 1A flows through the primary of a transformer. If mutual inductance between the primary and secondary is 1.5 H, what is the peak voltage induced in the secondary?

The current through a choke coil increases from zero to 6 A in 0.3 second and an induced e.m.f. of 30 V is produced. The inductance of the choke coil is

A permanent magnet moving coil ammeter is connected in 50 Hz a.c. circuit in which 5 A current is flowing. The meter will read

For most efficient use of power distribution equipment, the power factor should be

A rigid body is rotating with constant angular velocity ω about a fixed axis, if v is the velocity of a point of the body, then curl v =