The physics
Ohm's law says current through a conductor is voltage divided by resistance. Voltage is the electrical 'pressure', resistance the narrowness of the pipe, and current the resulting flow.
Current through a 144 Ω bulb at 120 V
Answer: current = 0.833 A (power 100 W).
What we know
- Voltage: 120 V
- Resistance: 144 Ω
Step by step
- Given
- V = 120 V, R = 144 Ω
- Formula
- I = V / R
- Substitute
- I = 120 / 144
- Result
- I = 0.833 A
All results
| Current | 0.833 A |
|---|---|
| Power | 100 W |
Open the ohm's law calculator with these numbers → and change any of them.