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CBSE Class 12-science Answered

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Asked by jain.pradeep | 24 Apr, 2019, 01:44: AM
answered-by-expert Expert Answer
(8) I only.  point-Y is very near to charge at centre in case-I.  Potential energy is inversely proportional to distance between charges.
         Hence potential energy at Y is higher in case-I only
 
(9) net workdone to move the charge from X to Y  is same as difference of potential energy between X and Y. Also it is independent of path.
        Hence as per explantation given for question-(8), workdone is maximum in case-I only
 
(10) case-III only,
       when the charge is moved in a circumference, each point in circumference is at constant potential.       
       Hence if the charge is moved in a circumference no work is done
Answered by Thiyagarajan K | 24 Apr, 2019, 12:32: PM

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CBSE 12-science - Physics
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