- #1
gracy
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A charge s moved in an electric field of a fixed charge distribution from point A to another point B SLOWLY.The work done by external agent in doing so is 100J.What is the change in potential energy?Now that is not my actual question.I want to ask what does "SLOWLY" indicate?I know to apply the formula below change in Kinetic energy has to be zero
work done (external)=change in potential energy
for that change in velocity should be zero and for that if particle was at rest initially it should be at rest afterwards and if it was moving with certain velocity it should be moving with the same velocity afterwards thus acceleration should be zero.
But why then question does not mention that acceleration is zero?And why does the question say" slowly"?
work done (external)=change in potential energy
for that change in velocity should be zero and for that if particle was at rest initially it should be at rest afterwards and if it was moving with certain velocity it should be moving with the same velocity afterwards thus acceleration should be zero.
But why then question does not mention that acceleration is zero?And why does the question say" slowly"?
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