Mention two ways that can change the direction of Barlow's Wheel...please tell... Please donot copy the answer from google...
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The pool of mercury is kept in between the two opposite poles of a strong magnet. ... On passing current through the circuit the wheel will begin to rotate due to the action of the magnet on the current. The direction of rotation of the wheel can be determined by applying Fleming's left hand rule.
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Sorry dear don't know the answer...
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