NCERT Solutions for Class 6 Science Chapter 9 Electricity and Circuits in English Medium for CBSE Curriculum 2023-24. All the question answers of 6th Science chapter 9 are revised on the basis of rationalised syllabus and new NCERT textbooks issued for academic session 2023-24.
Topics and Sub Topics in Class 6 Science Chapter 9 Electricity and Circuits:
| Section Name | Topic Name |
| 9 | Electricity and Circuits |
| 9.1 | Electric cell |
| 9.2 | A bulb connected to an electric cell |
| 9.3 | An electric circuit |
| 9.4 | Electric switch |
| 9.5 | Electric conductors and insulators |
Exercise Questions
Q 1. Fill in the blanks :
(a) A device that is used to break an electric circuit is called _______________.
(b) An electric cell has _______________ terminals.
Ans:
(a) A device that is used to break an electric circuit is called switch.
(b) An electric cell has two terminals.
Q 2. Mark ‘True’ or ‘False’ for following statements:
(a) Electric current can flow through metals.
(b) Instead of metal wires, a jute string can be used to make a circuit.
(c) Electric current can pass through a sheet of thermo Col.
Ans:
(a) True
(b) False
(c) False
Q 3. Explain why the bulb would not glow in the arrangement shown in Fig. 9.3
Ans: The bulb would not glow in the arrangement because the circuit is not complete due to the presence of an insulator in the centre.
Q 4. Complete the drawing shown in Fig 9.14 to indicate where the free ends of the two wires should be joined to make the bulb glow.
Ans:
Q 5. What is the purpose of using an electric switch? Name some electrical gadgets that have switches built into them.
Ans: An electric switch helps to turn things on and off by controlling the flow of electricity.
Examples of some gadgets that have switches:
Q 6. Would the bulb glow after completing the circuit shown in Fig. 9.14 if instead of a safety pin we use an eraser?
Ans: No, the bulb will not glow because the eraser is an insulator of electricity.
Q 7. Would the bulb glow in the circuit shown in Fig. 9.15?
Ans: Yes, the electric circuit is closed so the bulb will glow.
Q 8. Using the “conduction tester” on an object it was found that the bulb begins to glow. Is that object a conductor or an insulator? Explain.
Ans: If the bulb glows when using a conduction tester on an object, it means the object is a conductor. Conductors let electricity flow through them easily. So, the object allows electricity to pass, making the bulb glow.
Q 9. Why should an electrician use rubber gloves while repairing an electric switch at your home? Explain.
Ans: An electrician uses rubber gloves while repairing an electric switch at your home because rubber gloves are insulators. This protects him from avoiding electric shocks.
Q 10. The handles of the tools like screwdrivers and pliers used by electricians for repair work usually have plastic or rubber covers on them. Can you explain why?
Ans:
Plastic and rubber are both insulating materials, meaning they do not conduct electricity. By covering the handles of the tools with these materials, it prevents electricity from passing through to the electrician's hands. This helps to protect them from electric shocks while working with live electrical circuits.