Some magnetic flux is changed through a coil | vedclass

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(A) The induced charge $q$ flowing through a circuit is given by the relation $q = \frac{\Delta \phi}{R}$,where $\Delta \phi$ is the change in magneti

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$2$

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(A) The induced charge $q$ flowing through a circuit is given by the relation $q = \frac{\Delta \phi}{R}$,where $\Delta \phi$ is the change in magnetic flux and $R$ is the resistance of the coil.Rearranging the formula,we get the change in flux: $\Delta \phi = q 	imes R$.The charge $q$ is equal to the area under the current-time $(I-t)$ graph.Given the graph is a triangle with base $b = 0.1 \, s$ and height $h = 4 \, A$,the area $q = \frac{1}{2} 	imes 	ext{base} 	imes 	ext{height} = \frac{1}{2} 	imes 0.1 	imes 4 = 0.2 \, C$.Substituting the values into the flux equation: $\Delta \phi = 0.2 \, C 	imes 10 \, \Omega = 2 \, Wb$.

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