What is the maximum number of 50 , W - 100 , | vedclass

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(C) For a bulb to glow with maximum intensity,it must operate at its rated voltage of $V_{rated} = 100 \, V$.The rated current for each bulb is $I_{bu

Vedclass · Accepted Answer

$4$

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(C) For a bulb to glow with maximum intensity,it must operate at its rated voltage of $V_{rated} = 100 \, V$.The rated current for each bulb is $I_{bulb} = \frac{P}{V} = \frac{50 \, W}{100 \, V} = 0.5 \, A$.Let $n$ be the number of bulbs connected in parallel. The total current drawn from the battery is $I = n 	imes I_{bulb} = 0.5n \, A$.The terminal voltage of the battery is given by $V = E - I r$,where $E = 120 \, V$ and $r = 10 \, \Omega$.Substituting the values: $100 = 120 - (0.5n) 	imes 10$.$100 = 120 - 5n$.$5n = 20$.$n = 4$.Thus,$4$ bulbs can be connected.

What is the maximum number of $50 \, W - 100 \, V$ bulbs that can be connected in parallel to a battery of $120 \, V$ and $10 \, \Omega$ internal resistance so that they glow with maximum intensity?

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