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(A) The magnetic flux $\phi$ is given by $\phi = B A \cos 	heta$. Since the plane is normal to the field,$	heta = 0^\circ$ and $\cos 0^\circ = 1$.Ch

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$10$

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(A) The magnetic flux $\phi$ is given by $\phi = B A \cos 	heta$. Since the plane is normal to the field,$	heta = 0^\circ$ and $\cos 0^\circ = 1$.Change in magnetic flux $\Delta \phi = (B_2 - B_1) A = (1 - 2) 	imes 0.01 = -0.01 \, Wb$.The induced electromotive force $(EMF)$ is given by Faraday's Law: $|\varepsilon| = |\frac{\Delta \phi}{\Delta t}| = \frac{0.01}{10^{-3}} = 10 \, V$.The heat produced $H$ is given by the formula $H = \frac{\varepsilon^2 \Delta t}{R}$.Substituting the values: $H = \frac{(10)^2 	imes 10^{-3}}{0.01} = \frac{100 	imes 10^{-3}}{0.01} = \frac{0.1}{0.01} = 10 \, J$.

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