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A metal sphere is electrically charged to Q_(0) and hangs on an insulting cord. The sphere slowly loses it charge because the air has a non zero resistivity rho. The potential of sphere of radius r_(0) is to be calculated with reference to infinity. Assume that resistivity of air is every where the same. Mass the correct statements

Answer» <html><body><p>Capacitance of sphere is `<a href="https://interviewquestions.tuteehub.com/tag/4-311707" style="font-weight:bold;" target="_blank" title="Click to know more about 4">4</a> pi epsilon_(0)r_(0)`<br/><a href="https://interviewquestions.tuteehub.com/tag/electrical-968148" style="font-weight:bold;" target="_blank" title="Click to know more about ELECTRICAL">ELECTRICAL</a> resistance of air is `R = (rho)/(4 pi r_(0))`<br/>Initial current is `(Q_(0))/(rho epsilon_(0))`<br/>Time in which charge gets <a href="https://interviewquestions.tuteehub.com/tag/halved-2104643" style="font-weight:bold;" target="_blank" title="Click to know more about HALVED">HALVED</a> is `rho epsilon_(0) ln 2`</p>Answer :A::B::C::D</body></html>


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