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[Post New] 2 Feb 2012 18:27:22 IST
   Subject: Two point charges A and B of value 5 and 3 nano coloumb are kept 6 cm apart . calculate work do
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Kunal (0)

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Two point charges A and B of value 5 and 3 nano coloumb are kept 6 cm apart . calculate work done when charge B is moved 1 cm towards A.
    
[Post New] 3 Feb 2012 18:39:00 IST
   Subject: Calculate word done
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RAHUL (40)

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 Find ELECTRIC FORCE at a point  "x" distance from A... integrate F*x at given intervel
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[Post New] 3 Feb 2012 18:41:00 IST
   Subject: Calculate word done
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RAHUL (40)

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 we must consider charge of A & B for deriving F ...
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[Post New] 4 Feb 2012 13:36:45 IST
   Subject: Calculate word done
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sidharthsekharsahoo (5)

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calculate the total P.E at distance 6cm and then find the toral P.E at the distance 7cm .then subtract the P.E of the two u will get the work done and it will be positive because u needn't have to do any work, it wil be done by system
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[Post New] 4 Feb 2012 13:39:15 IST
   Subject: Calculate word done
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sidharthsekharsahoo (5)

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sorry i have told the wrong ans ,u have to subtract the P.E at 6cm and 5cm ,then the sutracted is the work done and it is negetive
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