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Two conducting spheres of radiiR1 and R2...

Two conducting spheres of radi`iR_1 and R_2` are kept widely separated from each other . What are their individual capacitances?

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Capacitance of sphere of radii R_1 and R_2 is
`C_1 = 4 pie eplison_0 R_1`
`C_2 = 4 pie eplison_0 R_2`
Capacitance of combination `= C_1 + C_2`
`= 4 pie eplision_0 (R_1 + R_2)`
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