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Strength of Electromagnets
1)What happens to the strength of electromagnet as the number of cells in the circuit increases?
  
2)What happens to the strength of electromagnet as the number of turns in the coil decreases?
  
3)Identify the feature that is not a characteristic of an electromagnet
  
4)How should you coil the adjacent turns of wire in an electromagnet?
  
5)Materials such as iron when used as a core helps in increasing the strength of electromagnet. This is because iron is an example of
  
6)Electromagnets are used in
  
7)Strength of an electromagnet does not depend on
  
8)It is advised not to switch on the current in electromagnet for long duration because
  
9)Electromagnets are
  
10)What will happen when you bring a compass near the coiled wire of electromagnet?