Question:
The back emf induced in a coil, when current changes from 1 ampere to zero in one milli-second, is 4 volts. The self inductance of the coil is
The back emf induced in a coil, when current changes from 1 ampere to zero in one milli-second, is 4 volts. The self inductance of the coil is
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Self inductance depends on rate of change of current.
Updated On: Mar 18, 2026
- 1 henry
- 4 henry
- 10⁻³ henry
- 4×10⁻³ henry
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Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: E=L(di)/(dt)
Step 2: (di)/(dt)=110⁻³=10³
Step 3: L=(4)/(10³)=4×10⁻³H
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