PDF chapter test TRY NOW
Your teacher has shown you the following activity.
Activity:
- Teacher has wound a long insulated piece of wire around an iron nail in the form of a coil.
- Free ends of the wire are connected to a cell through a switch as shown in the figure.
- The current is switched on and some pins are placed near the ends of the nail.
Write down any three questions that come to your mind about this activity.
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