Question

The magnetic flux, through a circular coil of resistance R, changes by an amount Δϕ in a time Δt. Then the total quantity of electric charge ‘Q’, that passes any point in the coil, during the time Δt, is represented by

(1) \(Q=\frac{1}{R}\frac{Δϕ}{dt}\)

(2) \(Q=\frac{Δϕ}{R}\)

(3) \(Q=\frac{RΔϕ}{dt}\)

(4) \(Q=-\frac{Δϕ}{R}\)

Answer 1

(4) \(Q=-\frac{Δϕ}{R}\)

The induced emf in the coil will be given by