Explain with the help of a diagram - Single Touch method and Double touch method.
What is an Alloy? Write two examples.
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And: In the single-touch method the magnet is rubbed over the bar (iron bar) in the same direction. ... In a double- touch method of magnetising an iron bar by simultaneously stroking it with two opposite poles of two bar magnets.
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What is the formula to find the Edges of solids
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