Question: If a 4 0 - V potential different is set up in a wire that has a resistance of 2 0 , what is the

If a 40-V potential different is set up in a wire that has a resistance of 20, what is the current in the wire?
8 A
0.5 A
800 A
2 A
If a 4 0 - V potential different is set up in a

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