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A current of 1.2 A flows through a light bulb when it is connected across a 120 V source. What power is dissipated by the bulb?
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14 votes
14 votes
A current of 1.2 A flows through a light bulb when it is connected across a 120 V source. What power is dissipated by the bulb?

A current of 1.2 A flows through a light bulb when it is connected across a 120 V-example-1
User Gopinath
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1 Answer

19 votes
19 votes

Answer:

144 Watts

Step-by-step explanation:

The power dissipated is equal to

P = IV

Where I is the current and V is the voltage. Replacing I = 1.2 A and V = 120 V, we get

P = (1.2A)(120 V)

P = 144 Watts

Therefore, the power is 144 Watts

User William Revelle
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3.7k points
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