NEET 2022 Phase 1 | Moving Charges and Magnetism Question 16 | Physics

Statement I : Biot-Savart's law gives us the expression for the magnetic field strength of an infinitesimal current element (Idl) of a current carrying conductor only.

Statement II : Biot-Savart's law is analogous to Coulomb's inverse square law of charge q, with the former being related to the field produced by a scalar source, Idl while the latter being produced by a vector source, q.

In light of above statements choose the most appropriate answer from the options given below.

Both Statement I and Statement II are correct

Both Statement I and Statement II are incorrect

Statement I is correct and Statement II is incorrect

Statement I is incorrect and Statement II is correct

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-1

From Ampere's circuital law for a long straight wire of circular cross-section carrying a steady current, the variation of magnetic field in the inside and outside region of the wire is

Uniform and remains constant for both the regions.

A linearly increasing function of distance upto the boundary of the wire and then linearly decreasing for the outside region.

A linearly increasing function of distance r upto the boundary of the wire and then decreasing one with $${1 \over r}$$ dependence for the outside region.

A linearly decreasing function of distance upto the boundary of the wire and then a linearly increasing one of the outside region.

NEET 2021

MCQ (Single Correct Answer)

-1

A thick current carrying cable of radius 'R' carries current 'I' uniformly distributed across its cross section. The variation of magnetic field B(r) due to the cable with the distance 'r' from the axis of the cable is represented by :

NEET 2021 Physics - Moving Charges and Magnetism Question 19 English Option 1

NEET 2021 Physics - Moving Charges and Magnetism Question 19 English Option 2

NEET 2021

MCQ (Single Correct Answer)

-1

An infinitely long straight conductor carries a current of 5A as shown. An electron is moving with a speed of 10⁵ m/s parallel to the conductor. The perpendicular distance between the electron and the conductor is 20cm at an instant. Calculate the magnitude of the force experienced by the electron at that instant.

NEET 2021 Physics - Moving Charges and Magnetism Question 18 English

NEET 2021 Physics - Moving Charges and Magnetism Question 18 English

8 $$\times$$ 10^$$-$$20 N

4 $$\times$$ 10^$$-$$20 N

8$$\pi$$ $$\times$$ 10^$$-$$20 N

4$$\pi$$ $$\times$$ 10^$$-$$20 N

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