Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

General Knowledge

Question:

Which of the following statements is correct?

Options:

The net magnetic flux through any closed surface is zero.

Magnetic flux is a vector quantity.

Earth's magnetic poles coincide with the geographic poles.

Two magnetic field lines may intersect.

Correct Answer:

The net magnetic flux through any closed surface is zero.

Explanation:

The correct answer is option 1. The net magnetic flux through any closed surface is zero.

The correct statement among the options provided is:The net magnetic flux through any closed surface is zero.

Gauss's law for magnetism states that the net magnetic flux through any closed surface is always zero. This implies that magnetic monopoles do not exist; hence, the net flux of magnetic field lines into a closed surface must always be zero.

Magnetic flux (\(\Phi_B\)) is defined as the number of magnetic field lines passing through a given area. It is a scalar quantity, not a vector quantity.

Earth's magnetic poles do not coincide with the geographic poles. The magnetic north pole is located near the geographic north pole, but they are not the same.

Two magnetic field lines do not intersect. Magnetic field lines always form closed loops, and they do not intersect each other. If they were to intersect, it would imply the existence of magnetic monopoles, which have not been observed.