What is the resistance in a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

To determine the resistance in a circuit when the voltage and current are known, Ohm's Law is applied. Ohm's Law states that resistance (R) can be calculated by dividing the voltage (V) by the current (I), or mathematically represented as R = V / I.

In this case, you have an applied voltage of 12 volts and a current flow of 1.5 amperes. Plugging in these values into the formula gives:

R = 12 volts / 1.5 amperes = 8 ohms.

Therefore, the correct resistance for the circuit is 8 ohms. This understanding of Ohm's Law is crucial for anyone studying for the Ham Radio Technician Class, as it relates to various circuits and components where knowledge of voltage, current, and resistance is essential for proper operation and troubleshooting.