What would be the resistance when voltage is 12 volts and current is 3 Amps?

To determine the resistance when the voltage is 12 volts and the current is 3 amps, you can use Ohm's Law, which states that Resistance (R) is equal to Voltage (V) divided by Current (I). In mathematical terms, this is expressed as:

R = V / I.

Plugging in the values from the question:

R = 12 volts / 3 amps = 4 ohms.

This calculation shows that the resistance is indeed 4 ohms. Understanding this principle is fundamental in electrical systems, as it allows you to relate voltage, current, and resistance effectively. The correct calculation demonstrates how the relationship between these quantities can lead to crucial insights when designing or troubleshooting electrical circuits.

The other values do not satisfy the relationship dictated by Ohm's Law when the given voltage and current are applied.