A force of \( 10 \mathrm{~N} \) is required to move a conducting lo...

A force of \( 10 \mathrm{~N} \) is required to move a conducting loop through a non-uniform magnetic field at \( 2 \mathrm{~ms}^{-1} \). The rate of production of electrical energy (in watt) in loop is
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(1) 5
(2) 20
(3) 10
(4) Zero