Moving a charge from point A, where the potential is 310 V , to point B, where t

ID: 1886043 • Letter: M

Question

Moving a charge from point A, where the potential is 310 V , to point B, where the potential is 150 V , takes 4.5×104 J of work.

Part A

What is the value of the charge?

Express your answer to two significant figures and include the appropriate units.

Moving a charge from point A, where the potential is 310 V , to point B, where the potential is 150 V , takes 4.5×104 J of work.

Part A

What is the value of the charge?

Express your answer to two significant figures and include the appropriate units.

Work done is = change in potential x charge

W = (VB - VA)q

q = W/(VB - VA) = 4.5×104/(150-310) = -2.8125 x 10-6 Coulombs

Hence the charge is -2.81 x 10-6 Coulombs

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