Question

The resonant frequency of a circuit is f. If the capacitance is made 4 times the initial values, then the resonant frequency will become

• A. f / 2
• B. 2f
• C. f
• D. f / 4

Answer 1

Answer: (A)

f / 2

Answer 2

$f = \frac{1}{2\pi\sqrt{LC}}$ ⇒ $f \propto \frac{1}{\sqrt{C}}$