A 400-turn coil has 2 A current. To induce 100 V, how fast must current change?
Question 1
Q1. A 400-turn coil has 2 A current. To induce 100 V, how fast must current change?
Answer: 0.125 A/s
Explanation: ΔI/Δt = EMF / (L × N). Option C ignores turn count.