If an electron moves from rest from a point at which potential is $50\, volt$ to another point at which potential is $70\, volt$, then its kinetic energy in the final state will be
If an electron moves from rest from a point at which potential is $50\, volt$ to another point at which potential is $70\, volt$, then its kinetic energy in the final state will be
- A
$3.2 × 10^{-10} J$
- B
$3.2 × 10^{-18} J$
- C
$1\, N$
- D
$1 \,dyne$
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- [AIPMT 1999]
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