Two lamps have tungsten filaments. The resistances of two
lamps at incandescence are r and R, R being greater than r.
These lamps are connected in series. Then

(1) The lamp with resistance r will shine more brightly

(2) The lamp with resistance R will shine more brightly

(3) Both will shine equally brightly

(4) No prediction can be made regarding brightness



Two lamps have tungsten filaments. The resistances of two lamps at incandescence are r and R, R bei..

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( 3 ) Both will shine equally brightly

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