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

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

Step-by-step 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.