1
NEET 2023
MCQ (Single Correct Answer)
+4
-1

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

A
displacement current increases.
B
displacement current decreases.
C
capacitive reactance remains constant.
D
capacitive reactance decreases.
2
NEET 2023
MCQ (Single Correct Answer)
+4
-1

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

A
$$4 \mathrm{~mJ}$$
B
$$8 \mathrm{~mJ}$$
C
$$8 ~\mu \mathrm{J}$$
D
$$4 ~\mu \mathrm{J}$$
3
NEET 2023
MCQ (Single Correct Answer)
+4
-1

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

NEET 2023 Physics - Electromagnetic Induction and Alternating Current Question 7 English

A
$$15 \Omega$$
B
$$5 \sqrt{5} \Omega$$
C
$$25 \Omega$$
D
$$10 \sqrt{2} \Omega$$
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

A closely packed coil having 1000 turns has an average radius of 62.8 cm. If current carried by the wire of the coil is 1 A, the value of magnetic field produced at the centre of the coil will be (permeability of free space $$ = 4\pi \times {10^{ - 7}}$$ H/m) nearly

A
10$$-$$3 T
B
10$$-$$1 T
C
10$$-$$2 T
D
102 T
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