question_answer

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 40 cm The magnetic field changes with time at a steady rate \[\frac{dB}{dt}=0.02\frac{T}{s}.\] Find the current (in A) induced in the frame Resistivity of copper\[=1.7\times {{10}^{-8}}W-m.\]

Answer:

\[\left( 9.3\times {{10}^{-2}} \right)\]