The work done by the electric force on the electrons is 15

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Just as you touch a metal door knob, a spark of electricity (electrons) jumps from your hand to the knob. The electric potential of the knob is 2.0 x 10⁴ V greater than that of your hand. The work done by the electric force on the electrons is 1.5 x 10^-7 J. How many electrons jump from your hand to the knob?

Reference no: EM13642664

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