A resistor is made of a material that has a resistivity that is proportional to the current going through it.If the voltage across the resistor is doubled,what happens to the current through it? A)It doubles. B)It quadruples. C)It increases by a factor of 2^3/2. D)It increases by a factor of 2^1/2.

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Quizplus · Accepted Answer

Since resistivity is proportional to current, the resistance increases with current. Doubling the voltage leads to a smaller increase in current than doubling, specifically by a factor of 2^1/2.

A Resistor Is Made of a Material That Has a Resistivity