An inductor of inductance `2 mu H` is connected in series with a resistance,a variable capacitor and an AC source of frequency `7kHz`,the value of capacitance for which maximum current is drawn into the circuit is `(1)/(x)F`,where the value of `x` is______ (Take `pi=(22)/(7)` )

An inductor of inductance 100 mH is connected in series with a resistance, a variable capacitance and an AC source of frequency 2.0 kHz . What should be the value of the capacitance so that maximum current may be drawn into the circuit?

A coil of inductance 150 mH is connected in series with a variable capacitor of capacitance 20 pF to 500 pF. Calculte the frequency range to which the circuit can be tuned.

A resistor of resistance 400 Omega and inductor of inductacne 100 mH are connected imn series along with variable capacitor . Frequency of AC source is 1000 Hz. What magnitude of capacitance is required to generate maximum current in the circuit ?

In an LCR series circuit, an inductor 30 mH and a resistor 1 Omega are connected to an AC source of angular frequency 300 rad/s. The value of capacitance for which, the current leads the voltage by 45^(@)" is "(1)/(x) xx 10^(-3) F . Then the value of x is____

An inductor is self-indcutance 0.5 H is connected is series with a resistance 200 Omega and a variable capacitor. Now this combination is connected to an AC source of angular frequency 1000 rad/s. What capacitance should be adjusted for capacitor to get maximum current in the circuit ?

A capacitor of capacitance 20muF is connected in series with 25Omega resistance to 240 V, 50 Hz AC. The maximum current in the circuit is

A capacitor, a resistor and a 40 mH inductor are connected in series to an a.c. source of frequency 60 Hz. Calculate the capacitance of the capacitor,if current is in phase with the voltage.

In a series LCR circuit with variable inductor 80 nF capacitor and 70 ohm resistance an AC source is connected . Calculate the value of inductor if current drawn into the circuit is maximum. The frequency of AC source is 1 kHz.

In an A.C. circuit, a capacitor of 1mu F value is connected to a source of frequency 1000 rad/sec. The value of capacitive reactance will be –

An inductor 200 mH, capacitor 500mu F and resistor 10 Omega are connected in series with a 100 V variable frequency ac source. What is the frequency at which the power factor of the circuit is unity?