1.

Two metallic spheres of radii `1 cm` and `2 cm` are given charges `10^(-2) C` and `5 xx 10^(-2) C` respectively. If they are connected by a conducting wire, the final charge on the smaller sphere isA. `3xx10^(-2)C`B. `4xx10^(-2)C`C. `1xx10^(-2)C`D. `2xx10^(-2)C`

Answer» Correct Answer - A
`Q_("total")=4xx10^(-2)C`
Charnge distribution `prop` capacitance `prop` radius
`therefore Q_("small"):Q_("big")=1:3`
`Q_("big")=(3)/(4)xx4xx10^(-2)=3xx10^(-2)C`


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