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CE Two light bulbs operate on the same potential

Chapter 21, Problem 25P

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QUESTION:

Problem 25P

CE Two light bulbs operate on the same potential difference. Bulb A has four times the power output of bulb B.

(a) Which bulb has the greater current passing through it? Explain,

(b) What is the ratio of the current in bulb A to the current in bulb B?

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QUESTION:

Problem 25P

CE Two light bulbs operate on the same potential difference. Bulb A has four times the power output of bulb B.

(a) Which bulb has the greater current passing through it? Explain,

(b) What is the ratio of the current in bulb A to the current in bulb B?

ANSWER:

Step 1 of 3

(a)

Here we need to explain whether the resistance of the bulb A is greater, lesser or equal to the resistance of the bulb B. It is given that, the power rating of bulb A is four times the bulb B power rating when both the bulbs are operated in same voltage.

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