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AP Physics C: E&M
10.2 Redistribution of Charge between Conductors
10.1 Electrostatics with Conductors
IntermediateMCQMathematicalConceptual25k
Sphere 1 and Sphere 2 connected by a thin resistive wire with a switch.
Sphere 1 and Sphere 2 connected by a thin resistive wire with a switch.
Two isolated conducting spheres, Sphere 1 of radius \(R\) and Sphere 2 of radius \(2R\), are located far apart in a vacuum. Sphere 1 initially carries a net charge \(+Q\), and Sphere 2 is initially uncharged. At time \(t = 0\), the spheres are connected by a thin wire of resistance \(R_w\). Which of the following correctly pairs the total charge \(\Delta Q\) transferred from Sphere 1 to Sphere 2 after equilibrium is reached, and the behavior of the current \(I(t)\) through the wire as a function of time?

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