AP Physics 2
11.3 Resistance, Resistivity, and Ohm’s Law
A cylindrical metal wire with resistance \(R_0\) is connected across a power supply that maintains a constant potential difference \(V_0\), resulting in an initial current \(I_0\). The wire is then uniformly stretched at constant temperature such that its length doubles while its volume remains constant. If the stretched wire is reconnected to the same power supply, what is the new current flowing through the wire?
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