A uniform magnetic field B exists in a direction perpendicular to the  plane of a square frame made
Channel: Doubtnut
Date: 2020-07-05

A uniform magnetic field B exists in a direction perpendicular to the  plane of a square frame made of copper wire. The wire has  a diameter of 2 mm and a total length of 40cm. The magntic field changes with time at a steady rate `dB/dt = 0.02 T s ^(-1). Find  the current induced in the frame. Resistivity of copper `=1.7 X 10 ^(-8) Wm`.