Question

How much kinetic energy is gained by an electron that is allowed to move freely through a potential
difference of 2.5 × 104 V?
The kinetic energy gained by the electron is equal to the potential difference multiplied by the charge of the electron, which is 1.6 x 10^-19 Coulombs. Therefore, the kinetic energy gained by the electron is 4 x 10^-15 Joules.

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