- #1
Big-Daddy
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When the contact surface between two conductors is increased, (battery and wire) what happens to the voltmeter reading?
If cross-sectional area of wire is increased, current increases but what happens to potential difference on the circuit? Contact resistance is what's varying surely... or does contact resistance stay constant and pd changes?
If cross-sectional area of wire is increased, current increases but what happens to potential difference on the circuit? Contact resistance is what's varying surely... or does contact resistance stay constant and pd changes?