A coil consists of turns of wire with a total resistance of
PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
A coil consists of 200 turns of wire with a total resistance of 2.0Ω. Each turn is a square of side 18cm, and a uniform magnetic field perpendicular to the plane of the coil is turned on. If the field changes linearly from 0 to 0.5T in 0.80s, find the magnitude of the induced emf and current in the coil while the field is changing.