Which expression correctly defines resistance?

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Multiple Choice

Which expression correctly defines resistance?

Explanation:
Resistance is what tells us how much a component opposes the flow of current. Ohm’s law relates voltage, current, and resistance as V = I × R. If we want to define resistance itself, we rearrange that formula to R = V / I. So the expression that defines resistance is resistance equals voltage divided by current. For example, with 6 volts across a component and a current of 2 amperes, the resistance is 3 ohms. The form V = I × R is still true, but it describes voltage in terms of current and resistance rather than defining resistance.

Resistance is what tells us how much a component opposes the flow of current. Ohm’s law relates voltage, current, and resistance as V = I × R. If we want to define resistance itself, we rearrange that formula to R = V / I. So the expression that defines resistance is resistance equals voltage divided by current. For example, with 6 volts across a component and a current of 2 amperes, the resistance is 3 ohms. The form V = I × R is still true, but it describes voltage in terms of current and resistance rather than defining resistance.

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