SSC JE Electrical Engineering 22 Jan 2018 Evening Paper

Question : 134 of 200

Marks: +1, -0

A series RLC circuit has a capacitance, inductance and resistance of 0.018 mF, 2 mH and 10 Ohms respectively. What is the resonant frequency (in kHz) of the circuit ?

13.26
26.52
53.04
79.56

Validate

Solution:

C = 0.018 mf
L = 2 mH
and R = 10Ω
In series RLC circuit,
resonant frequency

(f_r)

is given by

\f_r=1/{2π√{LC}}

=1/{2×3.14√{2×10^{-3}×0.018×10^{-3}}}

= 0.84 kHz

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