MHT CET 2021 22th September Morning Shift | Alternating Current Question 63 | Physics

The frequency of the output signal of an LC oscillator circuit is '$$\mathrm{F}$$' Hz with a capacitance of 0.1 $$\mu \mathrm{F}$$. If the value of the capacitor is increased to $$0.2~ \mu \mathrm{F}$$, then the frequency of the output signal will be

$$\frac{\mathrm{F}}{\sqrt{2}} \mathrm{~Hz}$$

$$\frac{\mathrm{F}}{\sqrt{3}} \mathrm{~Hz}$$

$$\frac{\mathrm{F}}{2} \mathrm{~Hz}$$

$$2 \mathrm{~F} \mathrm{~Hz}$$

MHT CET 2021 21th September Evening Shift

MCQ (Single Correct Answer)

-0

In LCR series resonant circuit, at resonance, voltage across 'L' and 'C' will cancel each other because they are

90$$^\circ$$ out of phase

90$$^\circ$$ in phase

180$$^\circ$$ in phase

180$$^\circ$$ out of phase

MHT CET 2021 21th September Evening Shift

MCQ (Single Correct Answer)

-0

The inductive reactance of a coil is R$$\Omega$$. If the inductance of a coil is doubled and frequency of a.c. supply is also doubled then the new inductive reactance will be

$$\mathrm{\frac{R}{2}}$$

MHT CET 2021 21th September Evening Shift

MCQ (Single Correct Answer)

-0

Three pure inductors each of inductance 6H are connected as shown in the figure. Their equivalent inductance between the points 'P' and 'Q' is

MHT CET 2021 21th September Evening Shift Physics - Alternating Current Question 66 English

0.5 H

18 H

6.3 H

2 H

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