Q.

A conducting bar moves on two conducting rails as shown in the figure. A constant magnetic field B exists into the page. The bar starts to move from the vertex at time t = 0 with a constant velocity. If the induced EMF is Etn,, then value of n is ___ .
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Detailed Solution

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E=ℓvBE=2x3×vB    and   x=vtE=23v2Bt          Et1

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A conducting bar moves on two conducting rails as shown in the figure. A constant magnetic field B exists into the page. The bar starts to move from the vertex at time t = 0 with a constant velocity. If the induced EMF is E∝tn,, then value of n is ___ .