Out of 60W and 40W lamps, which one has higher electrical resistance when in use?
Asked by | 10th Jan, 2010, 08:24: PM
The 60 W will have higher resistance, since higher power means higher temperature of the filament, higher kinetic energy of electrons, more frequently collision.
Hence higher resistance.
Answered by | 10th Jan, 2010, 09:38: PM
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