Question

in the potential difference why the charge is q+?​

Answer 1

Answer:

The electric potential of a point charge Q is given by V=kQr V = kQ r .

Explanation:

To say we have a 12.0 V battery means that its terminals have a 12.0 V potential difference. When such a battery moves charge, it puts the charge through a potential difference of 12.0 V, and the charge is given a change in potential energy equal to ΔPE = qΔV.

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Answer 2

The electric potential of a point charge q is the given by V=kQr.

To say we have a 12.0V battery means that it's terminals have a 12.0V potential difference. When such a battery moves charge, it puts the charge through a potential difference of 12.0V, and the charge is given a change in potential energy equal to PE= qV.