Available Answers

1. 1.

   Fill in the blanks.

   1. The combination of two or more cells is called a ________________.
   2. In an electric circuit when we turn the switch on, then the electric current flows from the ________________ terminal of the cell to the ________________ terminal.
   3. When electricity is passed through a closely spaced turns of wire or coil, the coil behaves like a ________________.
   4. Electric bells and electric motor are the devices that contain ________________.
   5. When we bring a freely moving magnet near a current-carrying electric conductor then the magnet ________________.
2. 2.

   What is the requirement of electric symbols?

3. 3.

   What is the heating effect of electric current? Name some devices that work on the heating effect of electric current.

4. 4.

   What is the magnetic effect of electric current? Name some devices that work on the magnetic effect of electric current.

5. 5.

   What is called the element in a heating device? Why nichrome is used as heating element in most of the heating devices?

6. 6.

   Name two safety devices used in domestic electric circuits.