Question

Consider electrostatic shielding by a conducting shell and magneto-static shielding. Now, choose the statement which does not show the coessential difference between them:

• A. Electrostatic field lines can end on charges and conductors have free charges
• B. Magnetic field lines can end but conductors cannot end them.
• C. Lines of magnetic field cannot end on any material and perfect shielding is not possible.
• D. Shells of high permeability materials can be used to divert lines of magnetic field from the interior region.

Answer 1

Answer: (B)

Option (a), (c) and (d) all are correct about electrostatic shielding and magneto static shielding.