rms current#!#rms voltage

An a.c. circuit consists of a series combination of circuit elements X and Y. The current is ahead of voltage in phase by pi//4 . If element X is a pure resistor of 100 ohm, name the circuit element Y, and calculate the rms value of current if rms voltage is 141 V.

The peak value of an alternating voltage applied to a 50 omega resistance is 10V. Find the rms current. If the voltage frequency is 100 Hz, write the equation for the instantaneous current.

In a series LCR circuit, the the rms voltage supply is 170 V. If V_(R), V_(L) and V_(C) represent the rms voltage drop across resistor , inductor and capacitor, then

A resistor R and the capacitor C are connected in series across an ac source of rms voltage 5V if the rms voltage across C is 3V then that across R is .

An inductor coil joined to a 6 V battery draws a steady current of 12 A . This coil is connected to a capacitor and an AC source of rms voltage 6 V in series. If the current in the circuit is in phase with the emf, find the rms current.

An ac source of 50 V (r.m.s value) is connected across a series R - C circuit. If the r.m.s voltage across the resistor is 40 V, then the r.m.s voltage across the capacitor is

An inductor coil is connected to a 12V battery and drawing a current 24 A. This coil is connected to capacitor and an AC source of rms voltage rating 24 V in the series connection. The rms current through the circuit would found to be

The peak voltage of an ac supply is 440 V, then its rms voltage is