MCQ Questions for Class 6 Science: Ch 12 Electricity and Circuits

MCQ Questions for Class 6 Science: Ch 12 Electricity and Circuits

1. Combination of two or more cells in series is called
(a) Dynamo
(b) Battery
(c) Insulator
(d) Transistor
► (b) Battery

2. __________is a conductor.
(a) Wood
(b) Metal
(c) Paper
(d) Petrol
► (b) Metal

3. _________ is an electric device which easily closes or opens an electric circuit.
(a) Filament
(b) Electric bulb
(c) Electric switch
(d) Electric cell
► (c) Electric switch

4. Which of the following is bad conductor of electric current?
(a) Graphite
(b) Nichrome
(c) Diamond
(d) Iron
► (c) Diamond

5. Which one of the following will allow electric current to pass through?
(a) Eraser
(b) Matchstick
(c) Plastic comb
(d) Iron Nail
► (d) Iron Nail

6. A material which allows the electricity to pass through it is ________.
(a) Conductor
(b) Insulator
(c) Transistor
(d) None of these
► (a) Conductor

7. In which case bulb will glow if following materials are placed in circuit?
(a) Thin plastic sheet
(b) Plastic comb
(c) Plastic clip
(d) Metal spoon
► (d) Metal spoon

8. An electric cell has __________ terminals.
(a) 3
(b) 4
(c) 1
(d) 2
► (d) 2

9. A ______________ provide us with electricity.
(a) Battery
(b) Transformer
(c) Power house
(d) Bulb
► (c) Power house

10. Non metals like __________and __________are conductors of electricity
(a) Wood and paper
(b) Graphite and gas carbon
(c) Glass and rubber
(d) None of theses
► (b) Graphite and gas carbon

11. Filament of electric bulb is made up of
(a) Tungsten
(b) Copper
(c) Iron
(d) Aluminum
► (a) Tungsten

12. __________ is the positive terminal of an electric cell.
(a) Metal disc
(b) Metal case
(c) Metal cap
(d) Metal base
► (c) Metal cap

13. In _____________ electrical energy is transformed in to mechanical energy.
(a) Transistor
(b) Mixer grinder
(c) Electromagnet
(d) Electric bell
► (b) Mixer grinder

14. The electric current in a closed circuit always flows from the ___________terminal of the electric cell to the ______terminal.
(a) Negative to positive
(b) Positive to negative
(c) Positive to positive
(d) None of these
► (b) Positive to negative

15. The wire which carries away the current to the power house is called
(a) Earth wire
(b) Live wire
(c) Neutral wire
(d) None of these
► (c) Neutral wire

16. A combination of two or more electric cells is called___________.
(a) Electric circuit
(b) Battery
(c) Terminals
(d) None of these
► (b) Battery

17. A thin coil of metal, which glows when electricity is passed through it, is called
(a) Bulb
(b) Filament
(c) Insulator
(d) Switch
► (b) Filament

18. Electric energy is produced from the____________ within the cell.
(a) Chemicals
(b) Metals
(c) Terminals
(d) None of these
► (a) Chemicals

19. Resistance of a wire is r ohms. The wire is stretched to double its length, then its resistance in ohms is
(a) r/2
(b) 4r
(c) 2r
(d) r/4
► (b) 4r

20. The path along which electric current flows is_____________.
(a) Switch
(b) Electric current
(c) Electric circuit
(d) Electric cell
► (c) Electric circuit

21. _____________ is an energy which flows in an electric circuit.
(a) Electric circuit
(b) Electromagnet
(c) Electric current
(d) None of these
► (c) Electric current

22. The cylindrical container of electric cell is made of __________ and acts as negative terminal.
(a) Copper
(b) Iron
(c) Zinc
(d) Silver
► (c) Zinc

23. Which of the following is not a use of electricity?
(a) Riding bicycle
(b) Running pump
(c) Driving car
(d) Watching television
► (a) Riding bicycle

24. A material which does not allow the electricity to pass through it is___________.
(a) Conductor
(b) Electric cell
(c) Insulator
(d) None of these
► (c) Insulator

25. The central _____________of an electric cell is always positive.
(a) Circuit
(b) Chemical
(c) Terminal
(d) None of these
► (c) Terminal
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