Power dissipation in ideal inductor is

A. Maximum
B. Minimum
C. Zero
D. A finite value

Inductor does not allow the sudden change of

A. current
B. voltage
C. power
D. None of the above

The resistivity of the conductor depends on

A. area of the conductor.
B. length of the conductor.
C. type of material.
D. none of these.

How many coulombs of charge flow through a circuit carrying a current of 10 A in 1 minute?

A. 10
B. 60
C. 600
D. 1200

The resistance of a conductor of diameter d and length l is R Ω. If the diameter of the conductor is halved and its length is doubled, the resistance will be

A. R Ω
B. 2R Ω
C. 4R Ω
D. 8R Ω

The unit of resistivity is

A. Ω.
B. Ω – metre.
C. Ω / metre.
D. Ω / m².

Magnetic flux has the unit of

A. Newton
B. Ampere-turn
C. Weber
D. Tesla

The voltage induced in an inductor is represented as,

A. product of its inductance and current through it.
B. ratio of its inductance to the current through it.
C. ratio of the current through it to its inductance.
D. product of its inductance and rate of change of current through it.

Electric pressure is also called________?

A. resistance
B. power
C. voltage
D. energy

The substances which have a large number of free electrons and offer a low resistance are called____?

A. insulators
B. inductors
C. semi-conductors
D. conductors