Subjective Type

How will you show that like charges repel and unlike charges attract each other?

Solution

1.Rub two inflated balloons with a woolen cloth and hold the balloons together closely. They will to spring apart.
2.Rub two pieces of nylon on a sheet of paper and then hold them together closely. Again, they will try to spring apart.
3.Now, hold one balloon and one piece of nylon together closely. This time, the nylon clings to the balloon.

SIMILAR QUESTIONS

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Five balls, numbered 1 to 5, are suspended using separate threads. Pairs (1, 2), (2, 4), (4, 1) show electrostatic attraction, while pairs (2, 3) and (4, 5) show repulsion, therefore ball 1 must be:

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We know that the negative charge on the electrons and the positive charge on the proton are equal. Suppose, however, hat these magnitudes differ from each other by $$0.00010 \%$$. With what force would two copper coins, placed $$1.0\ m$$ apart, repel reach other? Assume that each coin contains $$3 \times 10^{22}$$ copper atoms. (Hint: A neutral copper atom contains $$29$$ protons and $$29$$ electrons.) What do you conclude?

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Two identical particles are charged and held at a distance of $$1m$$ from each other. They are found to be attracting each other with a force of $$0.027N$$. Now, they are connected by a conducting wire, so that charge flows between them. When the charge flow stops, they are found to be repelling each other with a force of $$0.009N$$. Find the initial charge on each particle.

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