# When Number of Turns in a Coil is Tripled :

When number of turns in a coil is tripled, without any change in the length of coil, its self-inductance becomes?

- one-third
- six times
- three times
- nine times

When number of turns in a coil is tripled, without any change in the length of coil, its self-inductance becomes?

- one-third
- six times
- three times
- nine times