Two insulated metal spheres of raddi 10 cm and 15 cm charged to a potential of 150 V and 100 V respectively, are connected by means of a metallic wire. What is the charge on the first sphere?A. 2 esuB. 4 esuC. 6 esuD. 8 esu

Two insulated metal spheres of raddi 10 cm and 15 cm charged to a pote

1.	Two insulated metal spheres of raddi 10 cm and 15 cm charged to a potential of 150 V and 100 V respectively, are connected by means of a metallic wire. What is the charge on the first sphere?A. 2 esuB. 4 esuC. 6 esuD. 8 esu
Answer» Correct Answer - B Here, `r_(1)=10cm, r_(2)=15cm, V_(1)=150V, V_(2)=100V` Common potential, `V=(C_(1)V_(1)+C_(2)V_(2))/(C_(1)+C_(2))=(4pi epsilon_(0)(r_(1)V_(1)+r_(2)V_(2)))/(4pi epsilon_(0)(r_(1)+r_(2))=120V` `therefore" "q_(1)=C_(1)V=4pi epsilon_(0)r_(1)V=(10^(-1))/(9xx10^(9))xx120C` `=(12)/(9xx10^(9))xx3xx10^(9)"esu = 4 esu"`

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Two insulated metal spheres of raddi 10 cm and 15 cm charged to a potential of 150 V and 100 V respectively, are connected by means of a metallic wire. What is the charge on the first sphere?A. 2 esuB. 4 esuC. 6 esuD. 8 esu

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