Q.19) Look at the figure and answer the given questions.
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i) What is this figure about?
ii) What is the difference between two figures?
ill) Name any one factor on which this effect depends.
iv)Name the household devices in which this effect is found.
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Answer:
1)the figure is an electromagnet
2) the difference is that there are more hairclips attracted to the 2nd one than the first one
3)the no of coils around the needle
4) can be found in electric bell
Explanation:
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