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Question:
The net magnetic flux through any closed surface, kept in a magnetic field is
The net magnetic flux through any closed surface, kept in a magnetic field is
Updated On: Jun 6, 2024
- zero
- $\frac{\mu_{0}}{4\,\pi}$
- $4\pi\mu_{0}$
- $\frac{4\mu_{0}}{4\pi}$
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The Correct Option is A
Solution and Explanation
The net magnetic flux through a closed surface will be zero, i.e. $\oint \vec{B}\cdot d \vec{s} = 0$, because there are no magnetic monopoles.
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Concepts Used:
Magnetism & Matter
Magnets are used in many devices like electric bells, telephones, radio, loudspeakers, motors, fans, screwdrivers, lifting heavy iron loads, super-fast trains, especially in foreign countries, refrigerators, etc.
Magnetite is the world’s first magnet. This is also called a natural magnet. Though magnets occur naturally, we can also impart magnetic properties to a substance. It would be an artificial magnet in that case.
Read More: Magnetism and Matter
Some of the properties of the magnetic field lines are:
- The lines and continuous and outside the magnet, the field lines originate from the North pole and terminate at the South pole
- They form closed loops traversing inside the magnet.
- But here the lines seem to originate from the South pole and terminate at the North pole to form closed loops.
- More number of close lines indicate a stronger magnetic field
- The lines do not intersect each other
- The tangent drawn at the field line gives the direction of the field at that point.
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