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Magnetism — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsMagnetism1 Mark
Question

Assertion  :   Magnetism is relativistic.

Reason      : When we move along with the charge so that there is no motion relative to us, we find no magnetic field associated with the charge.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(c) If assertion is true but reason is false.

(d) If the assertion and reason both are false.
✓

Answer

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

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