Ncert- class6- science-Chapter 9: Electricity and Circuits 2 Welcome to your Ncert- class6- science-Chapter 9: Electricity and Circuits 2 1. The path along which electric current flows is called resistor insulator electric circuit conduct None 2. What happens to a circuit when the switch is off? The circuit is now an open circiut Electricity flows continuously Electricity flows discontinuously The circuit is complete None 3. Substances that do not allow free flow of charge through them are called 4. Electric current cannot flow through Wood Silver None of these Copper None 5. Substances which allow electricity to pass through them are known as Electrical insulators Both conductors & insulators Electrical conductors None of these None 6. If we touch a naked current carrying wire, we get a shock. This is because our body is a : conductor of electricity source of electricity both B&C insulator of electricity None 7. Nidhi has two bulbs connected across two cells in a simple circuit. How can she make the bulbs glow dim? Replace one cell with a piece of chalk Replace one cell wtih a piece of wire Replace one bulb with another cell Replace one bulb with a piece of wire None 8. Conducting wires in a circuit are usually made up of Magnet Fiber Copper Iron None 9. What type of energy transformation occurs in a dry cell ? chemical to electrical energy electrical to thermal energy potential to electrical energy electrical to light energy None 10. Some matters do not allow the electricity to pass through it. What is called a matter which does not allow the electricity to pass though it? Semiconductor Conductor Insulator All of these None 11. The substance which allows electric current to flow through it is called Insulator Semiconductor None of these Conductor None 12. What is false in an ideal Electrical Circuit EMF of cell remains same Internal Resistance of battery is zero Resistance of connecting wires is zero Wires are heated None 13. Human body is a poor conductor of electricity good conductor of electricity semiconductor good insulator None 14. Why is a fuse used in an electrical appliance? To protect the appliance and its cable To change the current rating of the appliance To earth the appliance To change the efficiency of the appliance None 15. What happens to a circuit when the switch is off? There is a gap in the circuit Electricity flows continuously The circuit is complete Electricity flows discontinuously None 16. Which of the following devices can be used to break an electric circuit: Switch None of these Cell Bulb None 17. In which circuit will the bulb or bulbs glow the brightest? A simple circuit with one bulb and one cell A simple circuit with two bulbs and two cells A simple circuit with two bulbs and one cell A simple circuit with one bulb and two cells None 18. Electric energy is produced from the ............ stored inside the cell. Insulator Transistor Chemicals None of these. None 19. Which one of the following will not conduct electricity? solid NaCl graphite acidified water CuSO4 solution None 20. A bulb rated 240 V, 100 W is connected to a 120V supply. What can be inferred? The bulb fuses The bulb lights up to normal brightness The bulb lights up initially and then it fuses The bulb lights up but it is dim None Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
