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Ncert exemplar Solutions Class 6 Science Electricity and Circuits
Welcome to NCTB Solutions. Here with this post we are going to help 6th class students for the Solutions of NCERT Exemplar Class 6 Science Book, Chapter 12, Electricity and Circuits. Here students can easily find step by step solutions of all the problems for Electricity and Circuits, Also here our Science teacher’s are solved all the questions with easily understandable language with proper guidance so that all the students can understand easily.
Electricity and Circuits all Questions Solution :
Question no – (1)
Choose from the options a, b, c and d given in Fig. 12.1 the figure which shows the correct direction of current.
Answer :
The correct6 option is – (b)
Figure – (B) shows the correct direction of current.
Question no – (2)
Choose the incorrect statement
Answer :
The correct statement is option – (a)
A switch is the source of electric current in a circuit.
Question no – (3)
In an electric bulb, light is produced due to the glowing of
Answer :
The correct answer is option – (b)
In an electric bulb, light is produced due to the glowing of the thin filament.
Question no – (4)
In the following arrangement shown in Fig. 12.2, the bulb will not glow if the ends A and B are connected with
Answer :
The correct option is – (c)
The bulb will not glow if the ends A and B are connected with A plastic clip.
Question no – (5)
In the circuit shown in Fig. 12.3, when the switch is moved to ‘ON’ position,
Answer :
The appropriate answer is option – (d)
All the bulbs will glow together.
Question no – (6)
Filament of a torch bulb is
Answer :
The correct option is – (d)
Filament of a torch bulb is a thin wire.
Question no – (7)
Paheli is running short of connecting wires. To complete an electric circuit, she may use a
Answer :
The correct answer is alternative – (d)
To complete an electric circuit, she may use a steel spoon.
Very Short Answer Questions :
Question no – (8)
Answer :
The cell in circuit A will be used very rapidly because there is no appliance connected in the circuit.
Question no – (9)
Answer :
3 and 4 labels the terminal of the bulb.
Short Answer Questions :
Question no – (11)
Answer :
The bulb in the circuit will not glow because we could clearly see that the circuit is not complete for current to flow.
Question no – (12)
Answer :
The two possible reasons for which the bulb didn’t glow are as follows –
• The cells may be discharged or used already.
• The bulb may be fused.
Question no – (14)
Answer :
The rechargeable batteries can be used again and again because they are filled with such chemicals that can be charged again with the passage of an electric current in the opposite direction.
Question no – (15)
Answer :
The bulb “A” will not glow since the filament of bulb “B” is broken it will make the circuit incomplete for current to flow through the circuit.
Question no – (17)
Answer :
The arrangement “A’ should not be set up since there is no appliance in the circuit the cell will be used up very rapidly.
Question no – (18)
Answer :
A fused bulb does not glows because in a fused bulb the filament is broken which makes the circuit broken for current to pass and so the bulb does not glow.
Question no – (19)
Answer :
Paheli succeeded in glowing the torch because she used aluminium foil as connecting wire which is a good conductor of electricity.
Long Answer Questions :
Question no – (20)
Answer :
He will be able to make the bulb glow by joining one of the terminal of the bulb directly to the positive terminal of cell and by joining the other terminal to the negative terminal with the wire.
Question no – (21)
Answer :
(i) What will be the direction of the current through the bulb in both the cases. (Q to P or P to Q)
= The direction of current in “A” will be from Q to P while in “B” it will be from P to Q.
(ii) Will the bulb glow in both the cases?
= Yes, the bulb will glow in both the cases as the circuit is complete.
(iii) Does the brightness of the glowing bulb depend on the direction of current through it?
= No, the brightness of a bulb does not depends on the direction of current passing through it.
Question no – (22)
Answer :
Six activities which use electric current are as follows :
(i) Get cold water → Refrigerator.
(ii) Get cold air → Air Conditioner.
(iii) Get entertained → Television.
(iv) Get clothes cleaned → Washing Machine.
(v) Get toasted bread → Toaster.
(vi) Get hot water → Heater
Question no – (23)
Answer :
The possible reasons for which the torch is not glowing are as follows –
• The battery may be discharged.
• The connecting wire may be broken at some place.
• The switch may have some issue.
• The cell may have been placed in wrong position.
• The torch may be fused.
Next Chapters Solution :
👉 Food : Where Does It Come From?
👉 Sorting Materials and Groups
👉 The Living Organisms and their Surroundings
👉 Motion and Measurement of Distances
👉 Light
👉 Water
👉 Garbage in, Garbage out
