Rationalised 2023-24
Physics
158
 EXAMPLE 6 1
The magnitude of the induced emf in a circuit is equal
to the time rate of change of magnetic flux through the
circuit Mathematically, the induced emf is given by
d
– d
ΦtB
ε =
(6 3)
The negative sign indicates the direction of e  and hence
the direction of current in a closed loop