{"id":24135,"date":"2021-06-09T18:03:08","date_gmt":"2021-06-09T12:33:08","guid":{"rendered":"https:\/\/ncertsolutions.guru\/?p=24135"},"modified":"2021-06-09T18:03:08","modified_gmt":"2021-06-09T12:33:08","slug":"ncert-solutions-for-class-6-science-chapter-12","status":"publish","type":"post","link":"https:\/\/ncertsolutions.guru\/ncert-solutions-for-class-6-science-chapter-12\/","title":{"rendered":"NCERT Solutions for Class 6 Science Chapter 12 Electricity and Circuits"},"content":{"rendered":"

These NCERT Solutions for Class 6 Science<\/a> Chapter 12 Electricity and Circuits Questions and Answers are prepared by our highly skilled subject experts to help students while preparing for their exams.<\/p>\n

Electricity and Circuits NCERT Solutions for Class 6 Science Chapter 12<\/h2>\n

Class 6 Science Chapter 12 Electricity and Circuits Textbook Exercise Questions and Answers<\/h3>\n

Question 1.
\nFill in the blanks:
\na. A device that is used to break an electric circuit is called ………………….
\nb. An electric cell has …………………. terminals.
\nAnswer:
\na. switch
\nb. two<\/p>\n

Question 2.
\nMark \u2018True\u2019 or \u2018False\u2019 for the following statements:
\na. Electric current can flow through metals.
\nb. Instead of metal wires, a jute string can be used to make a circuit.
\nc. Electric current can pass through a sheet of thermocol.
\nAnswer:
\na. True
\nb. False
\nc. False<\/p>\n

Question 3.
\nExplain why the bulb would not glow in the arrangement shown in the given figure.
\n\"NCERT
\nAnswer:
\nThe bulb would not glow because one end of the tester\/screwdriver is made up of plastic which does not allow the electric current to flow through it.<\/p>\n

\"NCERT<\/p>\n

Question 4.
\nComplete the drawing shown in figure to indicate where the free ends of the two wires should be joined to make the bulb glow.
\n\"NCERT
\nAnswer:
\n\"NCERT<\/p>\n

Question 5.
\nWhat is the purpose of using an electric switch? Name some electrical gadgets that have switches built into them.
\nAnswer:
\nAn electrical switch is used to open the circuit or to close the circuit due to which electrical gadgets start or stop. Electrical switch is used in many electrical gadgets such as: television, washing machine, electrical mixer, toaster, heater, etc.<\/p>\n

Question 6.
\nWould the bulb glow after completing the circuit shown in figure of Question 4, if instead of safety pin we use an eraser?
\nAnswer:
\nNo, since eraser is an insulator so it does not allow the current to pass through it. Hence, the bulb will not glow.<\/p>\n

Question 7.
\nWould the bulb glow in the circuit shown in the given figure?
\n\"NCERT
\nAnswer:
\nNo, the electric bulb has two terminals and both the wires are connected to one terminal of the bulb. Current will not flow from the bulb and it will not glow. To make it glow, we have to connect one wire to each terminal of the bulb.<\/p>\n

Question 8.
\nUsing the \u201cconduction tester\u201d on an object it was found that the bulb begins to glow. Is that object a conductor or an insulator? Explain.
\nAnswer:
\nIf the object is a good conductor of electricity, then current will pass through conduction tester and the bulb will glow. Hence, the object will be a conductor of electricity.<\/p>\n

\"NCERT<\/p>\n

Question 9.
\nWhy should an electrician use rubber gloves while repairing an electric switch at your home? Explain.
\nAnswer:
\nOur body is a good conductor of electricity and rubber is an insulator. During repairing work, if the body comes in contact with current carrying wire then there will not be any accident as rubber does not allow the passage of current through it. Hence, electrician should use rubber gloves while repairing an electric switch.<\/p>\n

Question 10.
\nThe 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?
\nAnswer:
\nPlastic or rubber is an insulator which does not allow electric current to pass through it. The handles of the tools like screwdrivers and pliers used by electricians for repair have covering of plastic or rubber so that electric current may not pass through these tools to the body of the electrician to harm him.<\/p>\n

NCERT Extended Learning Activities And Projects<\/span><\/p>\n

Question 1.
\nImagine there were no electric supply for a month. How would that affect your day-to-day activities and others in your family? Present your imagination in the form of a story or a play. If possible stage the play written by you or your friends in school.
\nHint:
\nDo it yourself.<\/p>\n

Question 2.
\nFor your friends, you may set up a game \u201cHow steady is your hand?\u201d. You will need a cell, an electric bulb, a metal key, two iron nails (about 5 cm in length), about one and a half metre long thick metal wire (with its plastic insulation scraped off) and few pieces of connecting wires. Fix two nails nearly one metre apart on a wooden board so that these can be used as a hook. Fix the wire between the nails after inserting it through the loop of the key. Connect one end of this wire to a bulb and a cell. Connect the other terminal of the cell to the key with a wire. Ask your friend to move the loop along the straight wire without touching it. Glowing of the bulb would indicate that the loop of the key has touched the wire.
\nHint:
\nDo it yourself.<\/p>\n

\"NCERT<\/p>\n

Question 3.
\nRead and find out about Alessandro Volta who invented the electric cell. You may also find out about Thomas Alva Edison who invented the electric bulb.
\nHint:
\nDo it yourself.<\/p>\n

Activity 1<\/span><\/p>\n

Objective: To make an electric bulb light up
\nusing an electric cell.
\nMaterials Required: Bulb, cell and connecting wire.
\nProcedure:<\/p>\n