Q. The property of coil by which a counter e.m.f. is induced in it when the current through the coil changes is known as

- Self-inductance
- Mutual inductance
- Series aiding inductance
- Capacitance

Q. Which circuit element(s) will oppose the change in circuit current?

- Resistance only
- Inductance only
- Capacitance only
- Inductance and capacitance

Q. Which of the following circuit elements will oppose the change in circuit current?

- Capacitance
- Inductance
- Resistance
- All of the above

Q. In case all the flux from the current in coil 1 links with coil 2, the coefficient of coupling will be

- 2.0
- 1.0
- 0.5
- Zero

Q. Two 300 μH coils in series without mutual coupling have a total inductance of

- 300 μH
- 600 μH
- 150 μH
- 75 μH