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  4. A copper rod is moved in a magnetic field. The charge developed across its ends will be proportional to :

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Q. A copper rod is moved in a magnetic field. The charge developed across its ends will be proportional to :

Electromagnetic Induction

Solution:

$E =- \frac{d \phi}{dt}$ . So charge developed across the ends is determined by $\frac{d \phi}{dt}$ .But the current through it depends on the total change in flux