1) Which of these can produce an electric current? a) Cell b) Batteries c) Solar cell d) All of the above 2) Which of the following is an insulator? a) Iron b) Glass c) Silver d) Brass 3) Filament of an electric bulb is made of ... a) Iron b) Tungsen c) Copper d) Glass 4) Metal cap of an electric cell is a ... a) An insulator b) Switch c) Negative terminal d) Positive terminal 5) The flow of an electric current in a closed circuit is from which terminal? a) Positive to positive b) Positive to negative c) Negative to negative d) Negative to positive 6) The path along which electric current flows is called... a) Switch b) Electric cell c) Electric circuit d) Electric torch 7) Two students are debating about how light is produced in an electric bulb? a) Gases inside the bulb b) Large substance the bulb is made of c) Wires the bulb is connected to d) Filament present in the bulb 8) Both an electric bulb and electric cell have two terminals. a) False b) True 9) How many terminals does the electric circuit have ? a) three b) Two c) Six d) Four e) Five f) Seven 10) Electricity flows in an open circuit. a) True b) False 11) An electric switch is a _____ conductor of electricity. a) Good b) Bad c) All of the above d) None of the above 12) Salt water is a ___ conductor of electricity a) Good b) Bad c) All of the above d) None of the above

Electricity and circuits

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