Textbook ExpertVerified Tutor
28 Nov 2021
Given information
The situation is given that there is a three way bulb is a bulb which can power at , and at the same voltage of . It has two filament obviously having different resistance, Let it be and .
Step-by-step explanation
Step 1.
We know that the power is inversely proportional to resistance and is given by as follow
It is clear that when the bulb is operated at , the filament in use having high resistance
(Approx.)
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