InterviewSolution
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InterviewSolution
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The magnetic flux through a circuit of resistance R changes by an amount ∆φ in a time ∆t. Then, the total quantity of electric charge Q that passes at any point in the circuit during the time ∆t is represented by(a) \(\frac{\triangle \varphi}{R}\)(b) \(\frac{1}{R}\frac{\triangle \varphi}{\triangle t}\)(c) \(R\frac{\triangle \varphi}{\triangle t}\)(d) \(\frac{\triangle \varphi}{\triangle t}\) |
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Answer» Correct option is : (a) \(\frac{\triangle \varphi}{R}\) Induced emf is given by Eind = \(\frac{\triangle \varphi}{\triangle t}\) Current, i = \(\frac{Q}{\triangle t}\) \(=\frac{\triangle \varphi}{\triangle t}\times \frac{1}{R}\) \(\Rightarrow Q=\frac{\triangle \varphi}{R}\) |
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