InterviewSolution
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13.Namethe physical quantity which is () same (i) diffeinall the bulbs when three bulbs of(a) same wattage are connected in series(b) same wattage are connected in parallel(c) different wattage are connected in series(d) different wattage are connected in parallel |
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Answer» a)Physical quantity which remains same when some wattage are connected in series :--->Same wattage , so same voltage then same resistance--> Same voltage drop means same voltage drop across the bulbs.hence current, potential drop, resistance and luminosity of bulb remains sameDifferent ---none b)Same wattage are connected in parallel:Answer would be : same potential drop, current and resistance.Different--none c) Different wattage are connected in series:If wattage is different with same voltage rating then resistance will be different then potential drop also differs.Only electric current remains same. d)Different wattage are connected in parallel:If wattage is different with same voltage then the resistance are different too . Current also differs .Luminosity also differs. |
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