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What is the force between two small charged spheres having charges of2xx10^(-7) C and 3xx10^(-7)C placed 30 cm apart in air? |
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Answer» Solution :Here `q_1 =2xx10 ^(-7)C, q_2 =3XX10 ^(-7)C, r = 30 cm = 0.3 ` `THEREFORE ` Force in AIR ` F= (1)/( 4pi in _0).(q_1q_2)/( r^(2)) =(9xx 10 ^(9) xx2 xx 10 ^(-7) )/( (0.3) ^(2)) =6xx 10 ^(-3) N` The force is repulsive in nature. |
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