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If 100 J of work must be done to move e...

If 100 J of work must be done to move electric charge equal tp 4C from a place where potential is `-10V` to another place where potential si V volt, find the value of V.

Text Solution

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Here, `W_(AB) = 100J, q_(0) = 4C`,
`V_(A) = 10` volt, `V_(B) = V` volt
Since `V_(B) - V_(A) = (W_(AB))/(q_(0))`,
`V-(-10V) = (100J)/(4C) = 25V`
or `V = 25 V-10 V = 15V`
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