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CBSE - X - Physics

sir please read the question very carefully 
how  how coil rotates in oppsite direction after every half rotation

Asked by kanishkapanwar2424 7th September 2015, 6:30 PM
Answered by Expert


Hi kanishka,

Consider coil ABCD,

Assume that initially arm AB is towards left and arm CD is towards right. Ab is moving up and CD is moving down. So, current is in a particular direction.

After half rotation, AB will move towards right and CD will move towards left. So, now AB is moving down and CD is moving UP. So, current will be in opposite direction.

It is not physically moving in opposite direction. It is the interpretation of up and down which results in AC current.

Answered by Expert 7th September 2015, 6:47 PM

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