What is the voltage across a circuit with a current of 20 amps and a resistance of 5 Ohms?

To determine the voltage across a circuit given the current and resistance, we can use Ohm's Law, which states that voltage (V) is equal to the product of current (I) and resistance (R). The formula is expressed as:

V = I × R

In this case, the current is 20 amps and the resistance is 5 ohms. By substituting these values into the formula, we can calculate the voltage:

V = 20 amps × 5 ohms = 100 volts.

This calculation shows that the correct voltage across the circuit is 100 volts. Understanding this relationship is fundamental in electrical engineering, as Ohm's Law is a cornerstone principle used to solve various problems in circuits. The computation illustrates how changes in current or resistance will directly influence the voltage in a circuit.