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PHXII07:ALTERNATING CURRENT

356127 $L C$ oscillations are similar and analogous to the mechanical oscillations of a block attached to a spring. The electrical equivalent of the force constant of the spring is

1 Reciprocal of capacitive reactance

2 Capacitive reactance

3 Reciprocal of capacitance

4 Capacitance

Explanation:

Equation describing $L C$ circuit oscillation:
$L \frac{d^{2} q}{d t^{2}} + \frac{1}{C} q = 0$
Equation describing spring-mass system oscillation:
$m \frac{d^{2} x}{d t^{2}} + k x = 0$
Hence $k$ is equivalent to $1 / C$ .

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