CBSE Class 7 Answered
Three 100 W bulbs are connected in series to a 220 V power source . If 2 of the bulbs are replaced by 60 W bulbs then the brightness of the remaining 100 W bulb will increase or decrease and why?
Asked by Saptarshi Sen | 23 Nov, 2014, 11:40: AM
Expert Answer
Answered by Priyanka Kumbhar | 24 Nov, 2014, 03:51: PM
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