H2P-374
Electrical power
H2 Physics · JC 2 · Hard · Electrical power
Two filament lamps are rated 60 W–120 V and 40 W–120 V. They are connected in series to a 240 V supply. Which lamp will fail first, if any? Assume each lamp fails when its current exceeds its rated current.
- Only the 40 W lamp will fail
- Only the 60 W lamp will fail
- Both lamps will fail
- Neither lamp will fail
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