In a laboratory, a student wants to verify Ohm's Law for a new material. Which experimental approach will most accurately determine if the material obeys Ohm's Law?

Question

In a laboratory, a student wants to verify Ohm's Law for a new material. Which experimental approach will most accurately determine if the material obeys Ohm's Law? — Exam MCQ

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D. Measure current for several applied voltages and plot voltage versus current — The correct choice is Measure current for several applied voltages and plot voltage versus current. It follows from the basic electrical relationship between voltage, current, resistance, charge or electrical energy described in the question.

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A. Measure resistance at one voltage and compare to tabulated value

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B. Observe the heat produced at a single applied voltage

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C. Calculate voltage for a fixed current

In a laboratory, a student wants to verify Ohm's Law for a new material. Which experimental approach will most accurately determine if the material obeys Ohm's Law?

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