A square wire loop of \(10.0 cm\) side lies at right angles to a uniform magnetic field of \(20 ....

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A square wire loop of \(10.0 cm\) side lies at right angles to a uniform magnetic field of \(20 T\). A \(10 V\) light bulb is in a series with the loop as shown in the figure. The magnetic field is decreasing steadily to zero over a time interval \(\Delta t\). The bulb will shine with full brightness if \(\Delta t\) is equal to
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