Question

An équilateral triangle ABC of side a
placed nit he magnetic field with side AC
and its centre coinciding with the centre of
the magnetic field. The magnetic field
varies with time as B = ct. The emf induced
across side AB is -


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Answer 1

Answer: (√3/8) a²c

Explanation: The area subtended by the side AB at the centre; A= 1/2 × (√3/4)a².

Emf can be found out by multiplying A with dB/dt.