What does Ohm's Law relate in an electrical circuit?

What does Ohm's Law relate in an electrical circuit?

• A. Current equals voltage divided by resistance
• B. Power equals voltage times current
• C. Resistance equals voltage divided by current
• D. Voltage equals current times resistance

Answer: (D)

Ohm's Law shows how voltage, current, and resistance interact in a circuit. It states that the voltage across a conductor equals the current through it times its resistance: V = IR. This means the voltage drop is the product of how hard the circuit pushes current (voltage) and how much opposing force the conductor offers (resistance). The units line up: volt = ampere × ohm. This form directly expresses the relationship among all three quantities, which is why it’s the best fit. Remember, the law can be rearranged to I = V/R or R = V/I if you need to solve for a different variable, but the canonical form is voltage equals current times resistance.

Ohm's Law shows how voltage, current, and resistance interact in a circuit. It states that the voltage across a conductor equals the current through it times its resistance: V = IR. This means the voltage drop is the product of how hard the circuit pushes current (voltage) and how much opposing force the conductor offers (resistance). The units line up: volt = ampere × ohm. This form directly expresses the relationship among all three quantities, which is why it’s the best fit. Remember, the law can be rearranged to I = V/R or R = V/I if you need to solve for a different variable, but the canonical form is voltage equals current times resistance.