MHT-CET

25. Alternating Current question bank (Physics)

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Q1.

In an $LC$ circuit,the angular frequency at resonance is $\omega$. What is the new angular frequency when the inductance is made four times and the capacitance is made eight times its original value?

(A)

$\frac{\omega}{2 \sqrt{2}}$

(B)

$\frac{\omega}{4 \sqrt{2}}$

(C)

$\frac{\omega}{4}$

(D)

$\frac{\omega}{\sqrt{2}}$

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Q2.

$A$ capacitor of capacity $C$ is charged to a potential $V$. It is connected in parallel to an inductor of inductance $L$. The maximum current that will flow in the circuit is

(A)

$V \sqrt{\frac{L}{C}}$

(B)

$V \sqrt{LC}$

(C)

$V \sqrt{\frac{C}{L}}$

(D)

$\frac{VC^2}{L}$

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