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 voltage in this circuit if resistance is 80 Ω and current is 0.5 amps.
| 20 V | |
| 31 V | |
| 43 V | |
| 40 V |