Lenz’s law is expressed by the following formula (here e = induced e.m.f., ϕ = magnetic flux in one turn and N = number of turns)

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

e=−ϕdNdt

e=−Ndϕdt

e=−ddtϕN

e=Ndϕdt

answer is B.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Induced emf is developed when there is change in the magnetic flux for N coilse=−Ndϕdt

Watch 3-min video & get full concept clarity