d
Work done by external agent \( = {U_f} - {U_i}\)

Work done by external agent \( = {U_f} - {U_i}\)

\(W=M B(1-\cos \Theta)\)

\(W=2 M B \quad \quad M=10^{-2} \widehat{l}\, A-m^{2}\)

\(=2 \times 10^{-2} \times 1 \times \cos (0.125) \quad B=B \widehat{l} \cos w t\)

\(W=2 \times 10^{-2} \times 1 \times \cos (0.125) \quad w=0.125\, \mathrm{rad} / \mathrm{s}\)

\(w \approx 0.02\, J\)            \(B=1\,Tesla\)

\(W \approx 0.02 \,J\)

\(W \approx 0.02 \,J\)

\(W \approx 0.014 \,J\)