According to Ohm's Law, what is needed to push one ampere through a resistance of one ohm?

Ohm's Law states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance. It can be expressed using the formula:

[ V = I \times R ]

In this equation, ( V ) represents voltage (in volts), ( I ) represents current (in amperes), and ( R ) represents resistance (in ohms).

To understand why the correct answer is one volt, we can apply Ohm's Law to the specific scenario presented in the question. If you want to push one ampere (1 A) of current through a resistance of one ohm (1 Ω), you can rearrange the formula to solve for voltage:

[ V = I \times R ]

[ V = 1 , \text{A} \times 1 , \text{Ω} = 1 , \text{V} ]

Therefore, one volt is needed to drive one ampere through a resistance of one ohm.

This reasoning clarifies that the other options—one watt, one coulomb, and one amp—do not apply directly to the relationship described by Ohm's Law in the context of this