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In a light bulb connected to an AC source the instantaneous current is zero in each cycle of a current. Why does the bulb not glow off during these times of zero current?

In a light bulb connected to an AC source the instantaneous current is zero in each cycle of a current. Why does the bulb not glow off during these times of zero current? 

Grade:12

2 Answers

Eshan
askIITians Faculty 2095 Points
5 years ago
Dear student,

It is not possible that the instantaneous current is zero in each cycle at all times. Otherwise it would not have been an AC current at all(since it is not even changing from zero value, let alone a periodic variation). Please check the question.

Regards.
Shariq Wani
30 Points
5 years ago
Sorry 
The question is: 
Sorry.
The question is:
In a light bulb connected to an AC source the instantaneous current is zero two times in each cycle of a current. Why does the bulb not glow off during these times of zero current? 
 

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