A circular coil of radius having turns is placed with its plane perpendicular to a…

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A circular coil of radius

10\,\text{cm}

having

50

turns is placed with its plane perpendicular to a uniform magnetic field that varies with time as

B(t)=0.20\sin(100t)\,\text{T}

, where

t

is in seconds. Calculate the instantaneous induced emf in the coil at

t = 25\,\text{ms}