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Question

A point charge +q is taken very slowly from centre of a uniformly charged ring to infinity. Work done by external agent on point charge in this process is

एक बिन्दु आवेश +q को एकसमान आवेशित वलय के केन्द्र से अत्यधिक धीरे-धीरे अनन्त तक लाया जाता है। इस प्रक्रिया में बिन्दु आवेश पर बाह्य कारक द्वारा किया गया कार्य है


A
Qq4πε0R
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B
Zero

शून्य
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C
Qq4πε0R
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D
Qq2πε0R
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Solution

The correct option is A Qq4πε0R
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