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 490 volts and current is 7 amps.
| 210 Ω | |
| 72 Ω | |
| 71.5 Ω | |
| 70 Ω |