NEET 2022 Phase 2 | Moving Charges and Magnetism Question 12 | Physics

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

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-1

A long solenoid of radius 1 mm has 100 turns per mm. If 1 A current flows in the solenoid, the magnetic field strength at the centre of the solenoid is

6.28 $$\times$$ 10^$$-$$2 T

12.56 $$\times$$ 10^$$-$$2 T

12.56 $$\times$$ 10^$$-$$4 T

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

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