What is the change in electrostatic potential energy if an electron is moved #20m# by a uniform electric field of magnitude #155 N/C#?

1 Answer
Junaid Mirza
Mar 15, 2018

#4.96 × 10^-16\ "Joule"#

Explanation:

Work done by a force in moving a charge by distance #"d"# is

#"W = F d"#

Here Force is due to electric field (#"E"#), #"F = E q"#

#"W = E q d"#

#"W" = "155 N/C" × 1.6 × 10^-19\ "C" × "20 m" = 4.96 × 10^-16\ "Joule"#

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