What is magnetic induction? Describe in detail how steel needle can be magnetized by induction.
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The steel needle bar becomes an induced magnet with the end nearer the magnet having opposite polarity to that of the magnet.Hence, the iron needle is attracted and attached to the permanent magnet. The magnetic induction process reveal how magnetic materials can be attracted to.
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Answer: . Tina uses a force of 90 kg weight at a distance of 250cm from the fulcrum of a crowbar to
lift the log of wood placed 50cm away from the fulcrum. What is the weight of the log and what
is its mechanical advantage
Explanation: pleAE MARK MR BRAIN
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