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Question: An electron (charge = \(1.6 \times 10 ^ { - 19 } \mathrm { C }\) ) is accelerated through a potentia...

An electron (charge = 1.6×10−19C1.6 \times 10 ^ { - 19 } \mathrm { C } ) is accelerated through a potential of 100,000 V. The energy acquired by the electron is.

A

1.6×10−24 J1.6 \times 10 ^ { - 24 } \mathrm {~J}

B

1.6×10−14erg1.6 \times 10 ^ { - 14 } \mathrm { erg }

C

D

Answer

Explanation

Solution

E=eV=1.6×10−19×105E = e V = 1.6 \times 10 ^ { - 19 } \times 10 ^ { 5 } =1.6×10−14 J= 1.6 \times 10 ^ { - 14 } \mathrm {~J}