Question

What is the inductance of a coil if the coil produces an emf of 2.40 V when the current in it changes from -27.0 mA to 33.0 mA in 11.0 ms

Answer 1

Inductance of a coil(L) = 0.44 H (Approx)

Step-by-step explanation:

Given:

coil produces emf = 2.40 V

Old current = -27 mA

New current = 33 mA

Time taken = 11 mS

Find:

Inductance of a coil(L)

Computation:

Inductance of a coil(L) = -emf / [Δi / Δt]

Inductance of a coil(L) = -2.4 / [(-33 - 27) / 11]

Inductance of a coil(L) = -2.4 / [-5.4545]

Inductance of a coil(L) = 0.44 H (Approx)