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CBSE Class 10 Answered

In  10sec a charge of 25c leaves a battery and 200j of energy are delivered to an outside circuit as a result a) what is potential difference across the battery b)what amount of current flows from battery   
Asked by hvinayaka | 12 Jul, 2018, 05:54: PM
answered-by-expert Expert Answer
potential difference of 1 V across two points is equal to workdone of 1 J performed on 1C.
 
Hence to transfer 25C, workdone is 200 J means, the potential difference = 200×25 = 5000 V.
 
charge = current×time  , hence current = 25 C / 10 s = 2.5 A
Answered by Thiyagarajan K | 12 Jul, 2018, 08:03: PM

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