In a given circuit, the supplied voltage is 1.5 volts, and the resistor value is 3 ohms. Use Ohm's law to determine the current in the circuit. 2.0 amps 0.5 amps 4.5 amps 1.5 amps
Current in the circuit = (supplied voltage) divided by (the net effective resistance of everything in the circuit) . If the 3-ohm resistor is the only thing in the circuit, then Current = (1.5 volts) / (3 ohms) = 0.5 Ampere .