You have a 40- lightbulb and a 100-W bulb. 1. Find the resistances of the 40-W...

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Physics

You have a 40- lightbulb and a 100-W bulb.
1. Find the resistances of the 40-W bulb. Take that Î”V = 120V.
2. Find the resistances of the 100-W bulb. Take that Î”V = 120V.
3. If the two bulbs are connected separately, which of them willbe brighter?
4. If the two bulbs are connected in series to a battery source,which of them will be brighter?
5. If the two bulbs are connected in parallel to a batterysource, which of them will be brighter?

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3.6 Ratings (384 Votes)

1 Since PowerP V2R here for 40W bulb P1 40 W V1 120 V So resistanceR1 V12P1 120240 R1 360 ohm 2 Similarly here for 100W bulb P2 100 W V2 120 V So resistanceR2 V22P2 See Answer

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You have a 40- lightbulb and a 100-W bulb. 1. Find the resistances of the 40-W...

90.2K

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Question

Physics

Answer & Explanation Solved by verified expert

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