When a magnet is moved to and fro in a wire coil, voltage is induced. If the coil has twice as many loops, the voltage induced is
A) half.
B) the same.
C) twice.
D) four times as much.
E) none of the above
Answer: C
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Using a capacitor and two different value resistors, which of the following combinations in an RC circuit would give the greatest time constant?
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