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R
Sliding
contact
Ro
The figure above shows a battery connected across a uniform
resistor Ro. A sliding contact can move across the resistor from x = 0
xo at the right. Moving the contact changes how
at the left to x =
much resistance is to the left of the contact and how much is to the
right. Find the rate at which energy is dissipated in resistor R as a
function of x. Denote the emf as E.
PR

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