First slide

Potential energy

Question

Kinetic energy of an electron accelerated through a potential difference of 100 V is

Easy

A

1.6 X 10^-17 J
B

1.6 X 10²¹ J
C

1.6 X 10^-29 J
D

1.6 X 10^-34 J

Solution

$By using KE = QV \Rightarrow KE = 1.6 \times 10^{- 19} \times 100 = 1.6 \times 10^{- 17} J$

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