MHT CET 2023 13th May Evening Shift | Alternating Current Question 10 | Physics

At a particular angular frequency, the reactance of capacitor and that of inductor is same. If the angular frequency is doubled, the ratio of the reactance of the capacitor to that of the inductor will be

1/4

1/2

MHT CET 2023 13th May Evening Shift

MCQ (Single Correct Answer)

-0

In a $$L$$-$$R$$ circuit the inductive reactance is equal to the resistance $R$ in the circuit. An emf $$E=E_0 \cos \omega t$$ is applied to the circuit. The power consumed in the circuit is

$$\frac{E_0^2}{\sqrt{2} R}$$

$$\frac{E_0^2}{4 R}$$

$$\frac{E_0^2}{2 R}$$

$$\frac{E_0^2}{8 R}$$

MHT CET 2023 13th May Morning Shift

MCQ (Single Correct Answer)

-0

In an oscillating LC circuit, the maximum charge on the capacitor is '$$Q$$'. When the energy is stored equally between the electric and magnetic fields, the charge on the capacitor becomes

$$\frac{\mathrm{Q}}{4}$$

$$\mathrm{\frac{Q}{2}}$$

$$\frac{\mathrm{Q}}{\sqrt{2}}$$

$$\frac{\mathrm{Q}}{\sqrt{3}}$$

MHT CET 2023 13th May Morning Shift

MCQ (Single Correct Answer)

-0

With increase in frequency of a.c. supply, the impedance of an L-C-R series circuit

remains constant.

increases.

decreases.

decreases at first, becomes minimum and then increases.

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