Question

What is the meaning of I_RMS and V_RMS? How would they compare with the intensity of the current and voltage in a DC circuit? Please explain.

Answer 1

RMS stands for root mean square values.

In the case of AC circuits , both current and voltage are varying continuously with time. If we try to calculate the avarege value of both ac current and voltage the result will be zero since both are sinusoidal .

Hence we use the root mean square values for both voltage and current. The rms value is equal to the

1/√2 times the peak value of both current and voltage.

Comparing intensities of RMS values with corresponding DC values , the answer is Both values are equivalent.

Means Vrms = VDc and Irms = IDc.

Thats is in short RMS values are the DC equivalents of AC current and Voltage.