Solveeit Logo
Login

Question

Question: A current increases uniformly from zero to one ampere in 0.01 second, in a coil of inductance 10 mH ...

A current increases uniformly from zero to one ampere in 0.01 second, in a coil of inductance 10 mH it. The induced emf will be

A

1 V

B

2 V

C

3 V

D

4 V

Answer

1 V

Explanation

Solution

e=−LdIdt=−10×10−31.00.01=−1e = - L \frac { d I } { d t } = - 10 \times 10 ^ { - 3 } \frac { 1.0 } { 0.01 } = - 1 volt ∴ ∣e∣=1| e | = 1 volt