MHT CET 2023 14th May Morning Shift | Alternating Current Question 5 | Physics

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

MHT CET 2023 13th May Evening Shift

MCQ (Single Correct Answer)

-0

The number of turns in the primary and the secondary of a transformer are 1000 and 3000 , respectively. If $$80 \mathrm{~V} \mathrm{~AC}$$ is applied to the primary coil of the transformer, then the potential difference per turn of the secondary coil would be

240 V

2400 V

0.24 V

0.08 V

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