A loop of wire of width w and height h contains a switch and a battery and is connected to a spring of force constant k, as shown below. The loop carries a current I in a clockwise direction, and its bottom is in a constant, uniform magnetic field directed into the plane of the page. |
The spring and loop are replaced with a loop of the same dimensions and resistance R but without the battery and switch. The new 1oop is pulled upward, out of the magnetic field, at constant speed v . Express algebraic answers to the following questions in terms of Bo , vo , R, and the dimensions of the loop.
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