All Textbook Topics - Electricity - Resistance - If resistance doubles, current halves if the power supply is constant

If resistance doubles, current halves if the power supply is constant

As you double the resistance in a circuit, you halve the current.

This is a mathematical relationship which always holds in a circuit as long as the battery/power supply potential difference remains constant.

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As resistance increases, current decreases if the power supply is constant
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As resistance decreases, current increases if the power supply is constant

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