वाट से ओम कैलकुलेटर
ज्ञात सर्किट वाट क्षमता से लोड प्रतिरोध ज्ञात करें।
वाट से ओम कैसे काम करता है
Ohm's law and the power equation combine to relate power, voltage, and resistance. Since P = V² ÷ R, rearranging gives resistance R = V² ÷ P — the square of the voltage divided by the power.
This is useful for sizing resistive loads such as heating elements or dummy loads: if you know the operating voltage and the target power dissipation, you can calculate the resistance you need in ohms.
R(Ω) = V(V)² ÷ P(W)Derived from P = V² ÷ R (Ohm's law with the power equation).
वाट से ओम रूपांतरण तालिका
| Power↕ | At 12 V↕ | At 120 V↕ |
|---|---|---|
| 10 W | 14.4 Ω | 1,440 Ω |
| 25 W | 5.76 Ω | 576 Ω |
| 60 W | 2.4 Ω | 240 Ω |
| 100 W | 1.44 Ω | 144 Ω |
| 500 W | 0.288 Ω | 28.8 Ω |
| 1,000 W | 0.144 Ω | 14.4 Ω |
अक्सर पूछे जाने वाले प्रश्न: वाट से ओम
How do you convert watts to ohms?
Square the voltage and divide by the power. Ohms = Volts² ÷ Watts. For example, at 120 V a 60 W load has a resistance of 120² ÷ 60 = 240 Ω.
Why do you need voltage to find ohms?
Power alone does not define resistance — the same power can be produced by many voltage and resistance combinations. Voltage fixes the relationship so resistance can be calculated.
Can I use current instead of voltage?
Yes. If you know the current instead, use R = P ÷ I² (power divided by the square of the current) to find resistance in ohms.