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एक आवेश Q को दो भागों q और `Q-q` में विभाजित किया जाता है। अलग करने पर दोनों आवेशों के बीच का कूलॉम प्रतिकर्षण अधिकतम तब होगा जल अनुपात `(Q)/(q)` का मान होगा -
A. 2
B. `(1)/(2)`
C. 4
D. `(1)/(4)`

1 Answer

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Best answer
Correct Answer - b
q और `(Q-q)` आवेशों के बीच लगने वाला आकर्षण
बल `F = 9xx10^(9)(q(Q-q))/(x^(2))`
F का मान अधिकतम होगा यदि `(dF)/(dq)=0` तथा `(d^(2)F)/(dq^(2))` ऋणात्मक होगा ।
`therefore" "(dF)/(dq)=(d)/(dq)[9xx10^(9)(q(Q-q))/(x^(2))]=0`
`therefore (d)/(dq)[q(Q-q)]=0, (d^(2)F)/(aq^(2))` ऋणात्मक है।

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