Answers

2015-09-17T16:37:39+05:30
The phenomenon of the interaction of electric currents or fields and magnetic fieldsĀ 
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2015-09-17T17:12:28+05:30
When a nail is magnitised and another nail is bought in contact with it the nail also gets magnitised this property is known as electromagnetism and the first nail is magnitised by current the process must be mentioned in std 8 Selena book ..
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