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Question
State Gauss’s law for magnetism. Explain its significance.
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Solution
Gauss's law of magnetism states that net magnetic flux through a closed surface (Gaussian surface) is zero. Mathematically
`oint vecB.dvecs = 0`
Gauss’s Law for magnetism tells us that magnetic monopoles do not exist
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RELATED QUESTIONS
A thin conducting spherical shell of radius R has charge Q spread uniformly over its surface. Using Gauss’s law, derive an expression for an electric field at a point outside the shell.
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The surface considered for Gauss’s law is called ______.
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Five charges q1, q2, q3, q4, and q5 are fixed at their positions as shown in figure. S is a Gaussian surface. The Gauss’s law is given by `oint_s E.ds = q/ε_0`
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Consider a region inside which there are various types of charges but the total charge is zero. At points outside the region
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- the electric field is due to the dipole moment of the charge distribution only.
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Refer to the arrangement of charges in figure and a Gaussian surface of radius R with Q at the centre. Then
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- field on the surface of the sphere is `(-Q)/(4 piε_0 R^2)`.
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A charge Q is placed at the centre of a cube. The electric flux through one of its faces is ______.
A charge of +5 μC is placed at the centre of two concentric spheres of radii r1 = 3 cm and r2 = 5 cm. The ratio of the flux through sphere of radius r1 to that through sphere of radius r2 will be ______.
