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Question

Five positive charges, each of magnitude q are placed at the vertices of a regular pentagon of side r. What is the magnitude of electric field at the centre of the pentagon? (K=14πε0)

समान परिमाण q के पाँच धनावेशों को r भुजा वाले एक समपंचभुज के शीर्षों पर रखा जाता है। पंचभुज के केन्द्र पर विद्युत क्षेत्र का परिमाण क्या है? (K=14πε0)

A
Kqr2
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B
5Kqr2
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C
5Kqr2cos(2π5)
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D
Zero

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Solution

The correct option is D Zero

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