Battery Red

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Battery Red
Battery Red

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what is the electric potential of the positive (red) terminal of the battery?

The negative (black) terminal of a 12 V automobile battery is grounded to the frame of a car. If we arbitrarily take the automobile frame to be at an electric potential of 20 V, what is the electric potential of the positive (red) terminal of the battery?

It's 32V - 12v plus the potential of the car frame.

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