MHT CET 2023 10th May Evening Shift | Alternating Current Question 27 | Physics

The capacitive reactance of a capacitor '$$C$$' is $$\mathrm{X} \Omega$$. Both, the frequency of a.c. supply and capacitance of the above capacitor are doubled. The new capacitive reactance will be

$$\frac{\mathrm{X}}{4} \Omega$$

$$\frac{\mathrm{X}}{2} \Omega$$

$$2 \mathrm{X} \Omega$$

$$4 \mathrm{X} \Omega$$

MHT CET 2023 10th May Evening Shift

MCQ (Single Correct Answer)

-0

A $$100 \mathrm{~mH}$$ coil carries a current of $$1 \mathrm{~A}$$. Energy stored in the form of magnetic field is

0.025 J

0.050 J

0.075 J

0.100 J

MHT CET 2023 10th May Evening Shift

MCQ (Single Correct Answer)

-0

In the circuit given below, the current through inductor is $$0.9 \mathrm{~A}$$ and through the capacitor is $$0.6 \mathrm{~A}$$. The current drawn from the a.c. source is

MHT CET 2023 10th May Evening Shift Physics - Alternating Current Question 31 English

1.5 A

0.9 A

0.6 A

0.3 A

MHT CET 2023 10th May Morning Shift

MCQ (Single Correct Answer)

-0

The inductive reactance of a coil is '$$\mathrm{X}_{\mathrm{L}}$$'. If the inductance of a coil is tripled and frequency of a.c. supply is doubled, then the new inductive reactance will be

$$\frac{2}{3} X_L$$

$$\frac{3}{2} X_L$$

$$\frac{1}{6} X_L$$

$$6 \mathrm{X}_{\mathrm{L}}$$

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