Question

A circuit contains a resistor, an inductor, and a capacitor. When an AC voltage is applied across the circuit, the impedance of the circuit depends on the _______ of the voltage source.

Answer 1

Answer:

The impedance of  the circuit depends on the angular frequency of the voltage source.

Explanation:

• In a electric circuit, the magnitude of  the impedance, is given by the following expression:

       $Z = \sqrt{R^{2} + (Xl-Xc)^{2} (1)$

        where R = Resistance

                   Xl = Inductive reactance = ω*L

                   Xc = Capacitive Reactance = 1/ωC

        and  ω = angular frequency of the voltage source.

• So, it can be seen that the impedance depends on the value of the constants R,L and C, and on the angular frequency ω.