The equipotential surfaces in theneighborhood of a positive point charge are sph

Question

The equipotential surfaces in theneighborhood of a positive point charge are spheres. Which sphereis associated with the higher electric potential? the larger one the smaller one they are associated with the samepotential the larger one the smaller one they are associated with the samepotential the larger one the smaller one they are associated with the samepotential the larger one the smaller one they are associated with the samepotential the larger one the smaller one they are associated with the samepotential the larger one the smaller one they are associated with the samepotential the larger one the smaller one they are associated with the samepotential the larger one the smaller one they are associated with the samepotential the larger one the smaller one they are associated with the samepotential the larger one the smaller one they are associated with the samepotential Part B the larger one the smaller one they are associated with the samepotential

Explanation / Answer

given smaller one sphere has higher potential because V = kq/r smaller one has low radius B) given    r1 = ----11.1m r2 = 12.6m electron charge = e = 1.6*10-19C point charge = q = 2.60*10-6C hence woek done = W = e(kq/r1 -kq/r2)                             W = 1.6*10-19 *9*109   *2.60*10-6 (1/11.1 -1/12.6)       do caliculation   W =-------J to convert electron volts W/1.6*10-19 C = --------ev

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