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Magnetism And Matter — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsMagnetism And Matter1 Mark
MCQ
Essential difference between electrostatic shielding by a conducting shell and magnetostatic shielding is due to:
  • A
    Electrostatic field lines can end on charges and conductors have free charges.
  • B
    Lines of B can also end but conductors cannot end them.
  • C
    Lines of B cannot end on any material and perfect shielding is not possible.
  • D
    Shells of high permeability materials can be used to divert lines of B from the interior region.
✓

Answer

  1. Electrostatic field lines can end on charges and conductors have free charges.
  1. Lines of B cannot end on any material and perfect shielding is not possible.
  2. Shells of high permeability materials can be used to divert lines of B from the interior region.

Solution:

Electrostatic field lines can end on charges and conductors have free charges.

Lines of B cannot end on any material and perfect shielding is not possible.

Shells of high permeability materials can be used to divert lines of B from the interior region.

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