What is RMS value answer?

The RMS value is the square root of the mean (average) value of the squared function of the instantaneous values. This means then that the sinusoidal rms voltage from the wall sockets of a UK home is capable of producing the same average positive power as 240 volts of steady DC voltage as shown below.

What current is called the RMS current?

The root mean square (abbreviated RMS or rms ) is a statistical measure of the magnitude of a varying quantity. We use the root mean square to express the average current or voltage in an AC system. The RMS current and voltage (for sinusoidal systems) are the peak current and voltage over the square root of two.

How do you find RMS value of current?

To calculate rms value, we need to first calculate the average value of square of AC current / voltage for one time period. Then we find the square root of calculated average value. This gives the root mean square (rms) value.

What is RMS value derive the expression for the RMS value of current signal?

Derivation of r.m.s. value of current: The alternating current changes continuously with time. Suppose, that the current through the resistance remains constant for an infinitesimally small time dt. = I02 R sin2 ωt dt.

What is the RMS value of a sinusoidal current in terms of the maximum value?

70.7 percent
In other words, applying an ac voltage with a particular rms value to a resistive circuit will dissipate as much power in the resistors as a dc voltage would that has the same value. The rms value of a sinusoidal voltage or current waveform is 70.7 percent or 0.707 of its peak amplitude value.

What is meant by RMS value of current and derive an expression for the RMS value of alternating current over a cycle?

Irms or Iv. Derivation of r.m.s. value of current: The instantaneous value of a.c. passing through a resistance R is given by. I = I0 sin ωt. The alternating current changes continuously with time.