A coil of inductance 8.4 mh and resistance 6 Ω is connected to a 12 V battery. The current in the coil is 1.0 A approximately after time
500 ms
20 ms
35 ms
1 ms
Self Inductance -
An emf is induced in the coil or the circuit which oppose the change that causes it. Which is also known back emf.
- wherein
Option 1)
500 ms
Option is incorrect
Option 2)
20 ms
Option is incorrect
Option 3)
35 ms
Option is incorrect
Option 4)
1 ms
Option is correct