A frame CDEF is placed in a region where a magnetic field \( B \) is present. A rod of length on... VIDEO
A frame CDEF is placed in a region where a magnetic field \( B \) is present. A rod of length one metre moves with constant velocity \( 20 \mathrm{~m} / \mathrm{s} \) and strength of magnetic field is one tesla. The power spent in the process is (take \( \mathrm{R}=0.2 \Omega \) and all other wires and rod have zero resistance)
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