In the following circuit the current is in phase with the applied voltage. Therefore, the current in the circuit and the frequency of the source voltage respectively, are
In an ac circuit, the current lags behind the voltage by pi//3 . The components in the circuit are
In LR circuit (shown in figure), current is lagging by pi/3 in phase with applied voltage, then select correct alternative:
When a circuit element X is conneted across a.c. source, a current sqrt2 A flows through it and this current is in phase with applied voltage. When another element Y is connected across same a.c. source, the same current flows in the circuit, but it leads the voltages by pi//2 . Name the circuit elements X and Y. Find current that flows in the circuit when series combination of X and Y is connected acorss same a.c. voltage. Plot a graph showing variation of net impedance of series combination of X and Y as a function of angular frequency of applied voltage.
When an alternating voltage of 220 V is applied across a device P , a current of 0.25 A flows through the circuit and it leads the applied voltage by a angle pi/2 radian. When the same voltage source is connected across another device Q , the same current is observed in the circuit but in phase with the applied voltage. What is the current when the same source is connected across a series combination of P and Q ?
A 0.21-H inductor and a 88-Omega resistor are connected in series to a 220-V, 50-Hz AC source. The current in the circuit and the phase angle between the current and the source voltage are respectively. (Use pi= 22//7)
Find the current I & voltage V in the circuit shown.
Find the current I & voltage V in the circuit shown.
In a LCR series circuit, if the phase difference between applied voltage and current is zero then
The phase difference between voltage and current in an LCR series circuit is
