As isolated sphere has a capacitance `60 pF`. (i) Calculate its radius. (ii) How much charge should be placed on it to raise its potential to `10^(4) V` ?

As isolated sphere has a capacitance `60 pF`. (i) Calculate its radius

1.	As isolated sphere has a capacitance `60 pF`. (i) Calculate its radius. (ii) How much charge should be placed on it to raise its potential to `10^(4) V` ?
Answer» Here, `C = 60 pF = 60 xx 10^(-12) F`, `V = 10^(4)V` (i) `r = (1)/(4pi in_(0)) C = 9xx10^(9)xx60xx10^(-12)` `= 54xx10^(-2)m = 54m` (ii) `q = CV = 60xx10^(-12)xx10^(4)` `= 60xx10^(-8) = 0.6 muC`

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As isolated sphere has a capacitance `60 pF`. (i) Calculate its radius. (ii) How much charge should be placed on it to raise its potential to `10^(4) V` ?

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