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 40 Ω and current is 0.5 amps.
| 22 V | |
| 20 V | |
| 40 V | |
| 60 V |