Question

A coil with 55 loops has its fluxchange from 0 Wb to 0.0266 Wb ina certain amount of time,generating 5.22 V of EMF. Howmuch time elapsed?

Answer 1

Answer:

3.57 seconds

Explanations:

Number of loops, N = 55

Initial flux, Φ₁ = 0 Wb

Final flux, Φ₂ = 0.0266 Wb

ΔΦ = Φ₂ - Φ₁

ΔΦ = 0.0266 - 0

ΔΦ = 0.0266 Wb

The EMF, e = 5.22 V

e = NΔΦt

5.22 = 55 x 0.0266 x t

5.22 = 1.463 t

t = 5.22/1.463

t = 3.57 seconds