| ASSERTION: An electrical bulb starts glowing instantly as it is switched on. |
| REASON: Drift speed of electrons in a metallic wire is very large. |
A) If both assertion and reason are true and reason is the correct explanation of assertion.
B) If both assertion and reason are true and reason is not the correct explanation of assertion.
C) If assertion is true but reason is false.
D) If both assertion and reason are false.
E) If assertion is false but reason is true.
Correct Answer: C
Solution :
As the conductor is full of electrons, with slight drift anywhere the queue start moving as a result bulb start glowing instantly. Drift velocity of electrons in a good conductor is very low.
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