NEET 2023 | Moving Charges and Magnetism Question 4 | Physics

A very long conducting wire is bent in a semi-circular shape from $$A$$ to $$B$$ as shown in figure. The magnetic field at point $$P$$ for steady current configuration is given by :

NEET 2023 Physics - Moving Charges and Magnetism Question 3 English

$$\frac{\mu_{0} \mathrm{i}}{4 \mathrm{R}}$$ pointed away from the page

$$\frac{\mu_{0} \mathrm{i}}{4 \mathrm{R}}\left[1-\frac{2}{\pi}\right]$$ pointed away from page

$$\frac{\mu_{0} \mathrm{i}}{4 \mathrm{R}}\left[1-\frac{2}{\pi}\right]$$ pointed into the page

$$\frac{\mu_{0} \mathrm{i}}{4 \mathrm{R}}$$ pointed into the page

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

The shape of the magnetic field lines due to an infinite long, straight current carrying conductor is

a plane

a straight line

circular

elliptical

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

Two very long, straight, parallel conductors A and B carry current of 5 A and 10 A respectively and are at a distance of 10 cm from each other. The direction of current in two conductors is same. The force acting per unit length between two conductors is : ($$\mu$$₀ = 4$$\pi$$ $$\times$$ 10^$$-$$7 SI unit)

1 $$\times$$ 10^$$-$$4 Nm^$$-$$1 and is repulsive

2 $$\times$$ 10^$$-$$4 Nm^$$-$$1 and is attractive

2 $$\times$$ 10^$$-$$4 Nm^$$-$$1 and is repulsive

1 $$\times$$ 10^$$-$$4 Nm^$$-$$1 and is attractive

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

The magnetic field on the axis of a circular loop of radius 100 cm carrying current $$I = \sqrt 2 \,A$$, at point 1 m away from the centre of the loop is given by :

$$6.28 \times {10^{ - 4}}$$ T

$$3.14 \times {10^{ - 7}}$$ T

$$6.28 \times {10^{ - 7}}$$ T

$$3.14 \times {10^{ - 4}}$$ T

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