Ohm's law specifies the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit: V = IR.
Use Ohm's Law to calculate the value of resistance in this circuit if voltage is 40 volts and current is 0.5 amps.
| 80 Ω | |
| 26 Ω | |
| 240 Ω | |
| 81.5 Ω |