In the post dated 22-6-06 it was stated that we don’t get free magnetic poles. However, there are scientists who believe that the possibility of the existence of free magnetic poles (monopoles) can not be ruled out completely. Now consider the following M.C.Q.:
If magnetic monopoles are discovered, which one of the following will have to be modified?
(a) Lenz’s law
(b) Faraday’s law of electromagnetic induction
(c) Gauss theorem in electrostatics
(d) Gauss theorem in magnetism
(e) Ampere’s circuital law.
The correct option is (d). Gauss theorem in magnetism states that the total magnetic flux over a closed surface is zero. This zero value is obtained since we find magnetic dipoles only in nature and the outward flux due to the positive pole and the inward flux due to the negative pole get cancelled, to give a net zero flux. If we have a monopole of strength ‘p’ the flux will be μ0p and not zero.
If magnetic monopoles are discovered, which one of the following will have to be modified?
(a) Lenz’s law
(b) Faraday’s law of electromagnetic induction
(c) Gauss theorem in electrostatics
(d) Gauss theorem in magnetism
(e) Ampere’s circuital law.
The correct option is (d). Gauss theorem in magnetism states that the total magnetic flux over a closed surface is zero. This zero value is obtained since we find magnetic dipoles only in nature and the outward flux due to the positive pole and the inward flux due to the negative pole get cancelled, to give a net zero flux. If we have a monopole of strength ‘p’ the flux will be μ0p and not zero.
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