Sunday, July 12, 2009

Effects of Static charges~~~~~~~~~~~~~~~~~~?

thanks for help^^!!!





1.Describe tow ways in which static charges can be detected.





2.What is the effect of


(a)two objects with like charges on one another?


(b)two objects with unlike charges on one another?


(c)a charged object on a neutral object?





3.An acetate strip charged by rubbing it with cotton is brought near a charged plastic ruler. The tow repel one another. What can you conclude about the charge of the ruler? Give reasons for your answer.





4.An acetate strip charged by rubbing it with cotton is brought near a balloon. The balloon is attracted to the acetate strip.


What can you conclude about the charge of the balloon?Give reasons for your answer.





5.If a vinyl strip is charged by rubbing it with wool, would you expect a charge to develop on the wool? If so, what kind of charge?





6.How could you find out what charge is on your comb after you comb your hair?


Design a test and carry it out. What is the charge? Explain obtained your results and why you are certain of the charge

Effects of Static charges~~~~~~~~~~~~~~~~~~?
sorry I don't know


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