MHT CET 2023 14th May Evening Shift | Alternating Current Question 103 | Physics

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

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

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

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

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

MHT CET 2023 14th May Morning Shift

MCQ (Single Correct Answer)

-0

An alternating voltage is applied to a series LCR circuit. If the current leads the voltage by $$45^{\circ}$$, then $$\left(\tan 45^{\circ}=1\right)$$

$$\mathrm{X}_{\mathrm{L}}=\mathrm{X}_{\mathrm{C}}-\mathrm{R}$$

$$\mathrm{X}_{\mathrm{L}}=\mathrm{X}_{\mathrm{C}}+\mathrm{R}$$

$$\mathrm{X}_{\mathrm{C}}=\sqrt{\mathrm{X}_{\mathrm{L}}^2+\mathrm{R}^2}$$

$$\mathrm{X}_{\mathrm{L}}=\sqrt{\mathrm{X}_{\mathrm{C}}^2+\mathrm{R}^2}$$

MHT CET 2023 14th May Morning Shift

MCQ (Single Correct Answer)

-0

For a purely inductive or a purely capacitive circuit, the power factor is

zero

0.5

$$\infty$$

MHT CET 2023 14th May Morning Shift

MCQ (Single Correct Answer)

-0

The reciprocal of the total effective resistance of LCR a.c. circuit is called

impedance

admittance

resistance

inductive and capacitive reactance

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