MHT CET 2022 11th August Evening Shift | Alternating Current Question 41 | Physics

A coil having an inductance of $$\frac{1}{\pi} \mathrm{H}$$ is connected in series with a resistance of $$300 \Omega$$. If A.C. Source $$(20 \mathrm{~V}-200 \mathrm{~Hz})$$ is connected across the combination, the phase angle between voltage and current is

$$\tan ^{-1}\left(\frac{3}{4}\right)$$

$$\tan ^{-1}\left(\frac{4}{3}\right)$$

$$\tan ^{-1}\left(\frac{5}{4}\right)$$

$$\tan ^{-1}\left(\frac{4}{5}\right)$$

MHT CET 2022 11th August Evening Shift

MCQ (Single Correct Answer)

-0

In a full wave rectifier circuit without filter, the output current is

an eddy current

a constant direct current

a sinusoidal current

unidirectional but not steady current

MHT CET 2021 24th September Evening Shift

MCQ (Single Correct Answer)

-0

A rejector circuit is the resonant circuit in which

$$\mathrm{L}-\mathrm{C}-\mathrm{R}$$ are connected in parallel.

$$\mathrm{L}-\mathrm{C}-\mathrm{R}$$ are connected in series.

$$\mathrm{C}-\mathrm{R}$$ are connected in series.

L-R are connected in series.

MHT CET 2021 24th September Evening Shift

MCQ (Single Correct Answer)

-0

In series LCR circuit, at resonance the peak value of current will be [$$\mathrm{E_0}$$ is peak emf, R is resistance, $$\omega \mathrm{L}$$ is inductive reactance and $$\omega \mathrm{C}$$ is capacitive]

$$\frac{E_0}{R}$$

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

$$\frac{E_0}{\sqrt{R^2+\left(\omega L-\frac{1}{\omega C}\right)^2}}$$

$$\frac{E_0}{\sqrt{2} \sqrt{R^2+\left(\omega L-\frac{1}{\omega C}\right)^2}}$$

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