NEET 2023 | Alternating Current Question 12 | Physics

A $$12 \mathrm{~V}, 60 \mathrm{~W}$$ lamp is connected to the secondary of a step down transformer, whose primary is connected to ac mains of $$220 \mathrm{~V}$$. Assuming the transformer to be ideal, what is the current in the primary winding ?

2.7 A

3.7 A

0.37 A

0.27 A

NEET 2023

MCQ (Single Correct Answer)

-1

An ac source is connected to a capacitor C. Due to decrease in its operating frequency

displacement current increases.

displacement current decreases.

capacitive reactance remains constant.

capacitive reactance decreases.

NEET 2023

MCQ (Single Correct Answer)

-1

The magnetic energy stored in an inductor of inductance $$4 ~\mu \mathrm{H}$$ carrying a current of $$2 \mathrm{~A}$$ is :

$$4 \mathrm{~mJ}$$

$$8 \mathrm{~mJ}$$

$$8 ~\mu \mathrm{J}$$

$$4 ~\mu \mathrm{J}$$

NEET 2023

MCQ (Single Correct Answer)

-1

The net impedance of circuit (as shown in figure) will be :

NEET 2023 Physics - Alternating Current Question 12 English

$$15 \Omega$$

$$5 \sqrt{5} \Omega$$

$$25 \Omega$$

$$10 \sqrt{2} \Omega$$

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