7, al Describe the similarities and differences between the following terms: res

Question

7, al Describe the similarities and differences between the following terms: resistance, capacitive reactance, inductive reactance, and impedance. b) In an RLC circuit, the impedance Z is given by: Minimum impedance in such a circuit occurs when Xi Xc Since both inductive and capacitive reactances are frequency dependent, there is a frequency of alternating current where their reactances will be equal. If the capacitor C-10.0uF and the inductor L-0.10H, find the frequency fwhere their reactances will be equal.

Explanation / Answer

a) resistance : resistance is a measure of how strongly a material or circuit element opposes electric current through it.

capacitive reactance : It is the resisatnce offered by a capacitor to AC current.

inductive reactance : It is the resistance offered by an inductor to AC current.

impedance : The overall resistance offred by the circuit is called impedance of the circuit.

b)

when XC = XL, z becomes minimum.

1/(2*pi*f*C) = 2*pi*f*L

1/(4*pi^2*L*C) = f^2

==> f = sqrt(1/(4*pi^2*L*C))

==> f = 1/(2*pi*sqrt(L*C))

= 1/(2*pi*sqrt(0.1*10*10^-6))

= 159 Hz

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