Paano Kalkulahin si Ohm's Law

Ano ang Ohm's Law?

Ohm's Law relates voltage, current, and resistance in electrical circuits. This calculator solves for any one of the four quantities — voltage (V), current (I), resistance (R), or power (P) — given any two known values.

Pormula

V = IR · P = IV = I²R = V²/R

Step-by-Step na Gabay

1Enter any two known values (V, I, R, or P)
2The calculator solves the remaining two using Ohm's Law and the power formula
3Results apply to DC circuits and to AC circuits at unity power factor

Mga Nalutas na Halimbawa

Input

V = 12V · R = 47Ω

Resulta

I = 12/47 ≈ 0.255 A · P = 12 × 0.255 ≈ 3.06 W

A 1/4W resistor would overheat here — use at least a 1/2W rated part

Mga Karaniwang Mali na Dapat Iwasan

✕Applying Ohm's Law to non-linear components (diodes, transistors)
✕Forgetting unit prefixes: mA, kΩ, mW

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