First slide

Potential energy

Question

An electron (charge= 1.6 x 10^-19 coulomb) is accelerated through a potential of 1,00,000 volts. The energy requiredby the electron is

Easy

A

1.6 x 10^-24 joule
B

1.6 x 10^-14 erg
C

0.53 x 10^-14 joule
D

1.6 x 10^-14 joule

Solution

$Energy = 1.6 \times 10^{- 19} \times 100000 = 1.6 \times 10^{- 14} J$

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