1) By how many times the force between two charged bodies gets increased ,if their charges are doubled and the distance between them is halved?
2) Two pith-balls of mass 0.0004Kg are suspended from the same point by silk threads 0.25m long.Equal charges are given to the balls which separate until the threads enclose an angle of 30 degree. Calculate the charge on each pith-ball.
3) Two point charges whose magnitudes are in the ratio 2:3 separated by 2cm repel each other with a force of 3375N .Find the magnitude of the charges.
4)Two charged identical lead balls P and Q have their centres separated by a distance of 3cm and carries a charge of 9μC each.A third identical lead ball R is brought in contact with P and removed.It is then brought in contact with Q and removed.What is the new force of repulsion between P and Q?
2) Two pith-balls of mass 0.0004Kg are suspended from the same point by silk threads 0.25m long.Equal charges are given to the balls which separate until the threads enclose an angle of 30 degree. Calculate the charge on each pith-ball.
3) Two point charges whose magnitudes are in the ratio 2:3 separated by 2cm repel each other with a force of 3375N .Find the magnitude of the charges.
4)Two charged identical lead balls P and Q have their centres separated by a distance of 3cm and carries a charge of 9μC each.A third identical lead ball R is brought in contact with P and removed.It is then brought in contact with Q and removed.What is the new force of repulsion between P and Q?
For Grade 12 learners .Please try to workout the questions..........answer will be in the next blog
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