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The work done needed to move 2 C of charge from 4 V to 2 V is |
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Answer» Energy = V * Q where V= potential difference, Q is the charge movedIn our case it is simple, 12*2=24Joules.If we are moving the charge against the potential gradient(equivalent of lifting a ball against the gravity to a specific height), then we need this MUCH energy to move the charge. If the charge is FREELY allowed to move along the gradient(equivalent of releasing a ball from a specific height to fall under the INFLUENCE of the gravity), it would release the energy to the external system.hope it helps you |
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