MHT CET 2023 10th May Evening Shift | MHT CET Year Wise Previous Years Questions

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

A metal rod $$2 \mathrm{~m}$$ long increases in length by $$1.6 \mathrm{~mm}$$, when heated from $$0^{\circ} \mathrm{C}$$ to $$60^{\circ} \mathrm{C}$$. The coefficient of linear expansion of metal rod is

$$1.33 \times 10^{-5} /{ }^{\circ} \mathrm{C}$$

$$1.66 \times 10^{-5} /{ }^{\circ} \mathrm{C}$$

$$1.33 \times 10^{-3} /{ }^{\circ} \mathrm{C}$$

$$1.66 \times 10^{-3} /{ }^{\circ} \mathrm{C}$$

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