Question

An electrical circuit consists of a DC battery and a single resistor. If the battery has a voltage of 12.0 volts and a current of 4.00 amps flows through the circuit, what is the resistance of the resistor? 400 Ohms 120 Ohms 4.00 Ohms 3.00 Ohms 12.0 Ohms

Answer 1

Given

Voltage is V=12.0 V

Current is I=4.00 A

To find

The resistance of the resistor

Step-by-step explanation

By Ohm's law,

`\begin{gathered} V=RI \\ \Rightarrow12=R*4 \\ \Rightarrow R=3\text{ ohm} \end{gathered}`

Conclusion

The resistance is 3 ohm