PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo
Your teacher has shown you the following activity.
 
Activity:
  1. Teacher has wound a long insulated piece of wire around an iron nail in the form of a coil.
  2. Free ends of the wire are connected to a cell through a switch as shown in the figure.
  3. 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.