An electron is accelerated from rest through a potential difference of 5.0 kV. The kinetic energy gained by the electron is
A 8.0 × 10–16 J B 8.0 × 10–19 J C 3.2 × 10–20 J D 3.2 × 10–23 J
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kinetic energy gained= ev
= 1.6 × 10^-19 × 5× 10^3
= 8 × 10^-16
= 1.6 × 10^-19 × 5× 10^3
= 8 × 10^-16
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