VA = VRMS x IRMS (4)
You can calculate the apparent power in volt-amperes for ac circuits by multiplying the measured RMS voltage times the measured RMS current.
What is the formula of volts?
When spelled out, it means voltage = current x resistance, or volts = amps x ohms, or V = A x Ω. If you know voltage (E) and current (I) and want to know resistance (R), X-out the R in the pyramid and calculate the remaining equation (see the first, or far left, pyramid above).
How do you solve for voltage?
Ohms Law is used extensively in electronics formulas and calculations so it is “very important to understand and accurately remember these formulas”.
- To find the Voltage, ( V ) [ V = I x R ] V (volts) = I (amps) x R (Ω)
- To find the Current, ( I ) ...
- To find the Resistance, ( R ) ...
- To find the Power (P)
