Two particles, each having a mass of 5 g...

Two particles, each having a mass of 5 g and charge. `1.0 xx 10^(-7)` C, stay in limiting quilibrium on a horizontal. table with a separation of 10 cm between them. The coefficient of friction between each partcle and the table. is the same. Find the value of this coefficient.

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`Q_a=2xx10^-5C, M_B=80g `
Since B is at equillibrium, `F_e=muR `
` rArr muR=mumg `
` rArr =0.2xx0.08xx9.8 `
` rArr Q_t=8.7xx10^-5xx10^-3 `
` =8.7xx10^-8C `
` Charge =+8.7xx10^-8C`

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