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Problem: Light bulbs labeled 40 W, 60 W, and 100 W are connected to a 120 V/60 Hz power line as shown in the figure.What is the rate at which energy is dissipated in each bulb? Express your answers using two significant figures. 

FREE Expert Solution

Power in circuits:

P=Vi=i2R=V2R

Equivalent resistance for resistors in series:

Req=R1+R2+...+Rn

In this problem, we have two branches connected to 120V. One branch has two bulbs (40W and 60W) while the other branch has a 100W resistor.

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Problem Details

Light bulbs labeled 40 W, 60 W, and 100 W are connected to a 120 V/60 Hz power line as shown in the figure.

What is the rate at which energy is dissipated in each bulb? Express your answers using two significant figures. 

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