Check the below NCERT MCQ Questions for Class 7 Science Chapter 14 Electric Current and Its Effects with Answers Pdf free download. MCQ Questions for Class 7 Science with Answers were prepared based on the latest exam pattern. We have Provided Electric Current and Its Effects Class 7 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-7-science-with-answers/
You can refer to NCERT Solutions for Class 7 Science Chapter 14 Electric Current and Its Effects to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.
Class 7 Science Chapter 14 MCQ With Answers
Science Class 7 Chapter 14 MCQs On Electric Current and Its Effects
Choose the correct answer:
Electric Current And Its Effects Class 7 MCQ Question 1.
In making a battery
(a) positive terminal of one cell is connected to the negative terminal of the next cell
(b) positive terminal of one cell is connected to the positive terminal of the next cell
(c) negative terminal of one cell is connected to the negative terminal of the next cell
(d) none of the above
Answer
Answer: (a) positive terminal of one cell is connected to the negative terminal of the next cell
Class 7 Science Chapter 14 MCQ Question 2.
Where can the key or switch be placed in the circuit?
(a) Left side of the battery
(b) Right side of the battery
(c) Can be placed anywhere in the circuit
(d) Near the positive terminal of the bulb
Answer
Answer: (c) Can be placed anywhere in the circuit
Class 7 Electric Current And Its Effects MCQ Question 3.
Which one of the following is based on the heating effect of current?
(a) Geyser
(b) Hair dryer
(c) Immersion rod
(d) All of these
Answer
Answer: (d) All of these
Electric Current And Its Effects Class 7 MCQ With Answers Question 4.
The coil of wire contained in an electric heater is known as
(a) component
(b) element
(c) circuit
(d) spring
Answer
Answer: (b) element
MCQ On Electric Current And Its Effects Class 7 Question 5.
The amount of heat produced in a wire depends on
(a) material
(b) length
(c) thickness
(d) all of these
Answer
Answer: (d) all of these
Ncert Class 7 Science Chapter 14 MCQ Question 6.
Which mark is necessary on electric appliances?
(a) AGMARK
(b) ISI
(c) FICCI
(d) KSK
Answer
Answer: (b) ISI
Class 7 Science Ch 14 MCQ Question 7.
When an electric current flows through a copper wire AB as shown in Figure, the wire
(a) deflects a magnetic needle placed near it
(b) becomes red hot
(c) gives electric shock
(d) behaves like a fuse
Answer
Answer: (a) deflects a magnetic needle placed near it
MCQ Questions For Class 7 Science Chapter 14 Question 8.
Choose the statement which is not correct in the case of an electric fuse.
(a) Fuses are inserted in electric circuits of all buildings.
(b) There is a maximum limit on the current which can safely flow through the electric circuits.
(c) There is a minimum limit on the current which can safely flow in the electric circuits.
(d) If a proper fuse is inserted in a circuit it will blow off if current exceeds the safe limit.
Answer
Answer: (c) There is a minimum limit on the current which can safely flow in the electric circuits.
Electricity Class 7 MCQ With Answers Question 9.
When a switch is in OFF position.
(i) circuit starting from the positive terminal of the cell stops at the switch.
(ii) circuit is open.
(iii) no current flows through it.
(iv) current flows after some time.
Choose the combination of correct answer from the following:
(a) all are correct
(b) (ii) and (iii) are correct
(c) only (iv) is correct
(d) only (i) and (ii) are correct
Answer
Answer: (b) (ii) and (iii) are correct
Electric Current And Its Effects MCQ Question 10.
Which of the following precautions need not be taken while using electric gadgets / appliances/circuit?
(a) We should never touch a lighted electric bulb connected to the mains.
(b) We should never experiment with the electric supply from the mains or a generator or an inverter.
(c) We should never use just any wire or strip of metal in place of a fuse.
(d) We should never turn the switch in ON position.
Answer
Answer: (d) We should never turn the switch in ON position.
Match the following:
| Column A | Column B |
| (i) Switch | (a) Coil of wire which heats up when electricity current is supplied |
| (ii) Battery | (b) Blows off, if the current exceeds safe limit |
| (iii) Element | (c) Consumes less energy than a bulb |
| (iv) Filament | (d) Mark that ensures that the electric appliance is safe to handle |
| (v) Fuse | (e) Supplies current to the circuit |
| (vi) MCBs | (f) Turns the circuit ON and OFF |
| (vii) CFL | (g) Turn OFF if current exceeds safe limit |
| (viii) ISI | (h) Wire in the bulb which glows |
Answer
Answer:
| Column A | Column B |
| (i) Switch | (f) Turns the circuit ON and OFF |
| (ii) Battery | (e) Supplies current to the circuit |
| (iii) Element | (a) Coil of wire which heats up when electricity current is supplied |
| (iv) Filament | (h) Wire in the bulb which glows |
| (v) Fuse | (b) Blows off, if the current exceeds safe limit |
| (vi) MCBs | (g) Turn OFF if current exceeds safe limit |
| (vii) CFL | (c) Consumes less energy than a bulb |
| (viii) ISI | (d) Mark that ensures that the electric appliance is safe to handle |
Fill in the blanks:
1. Our body is a ………………….. of electricity.
Answer
Answer: conductor
2. An electric cell produces electricity from the ………………….. in it.
Answer
Answer: chemicals stored
3. In an electric circuit a fuse is a ………………….. to prevent possible fire.
Answer
Answer: safety device
4. A combination of two or more cells is called a ………………….. .
Answer
Answer: battery
5. The coil of wire in an electric heater is called an ………………….. .
Answer
Answer: element
6. A ………………….. is a safety device which prevents damages to electrical circuits and possible fires.
Answer
Answer: fuse
7. The wire gets ………………….. when an electric current passes through it.
Answer
Answer: hot
8. We must look for ………………….. mark on electrical appliances.
Answer
Answer: ISI
9. When electric current passes through a wire, it behaves like a magnet. It is the ………………….. effect of current.
Answer
Answer: magnetic
10. Crane has a strong ………………….. attached to it.
Answer
Answer: electromagnet
Choose the true and false statements from the following:
1. It is convenient to represent electric components by symbols.
Answer
Answer: True
2. A connecting wire is symbolized by a zig-zag line in the circuit diagram.
Answer
Answer: False
3. When an electric current flows through a wire, the wire gets heated.
Answer
Answer: True
4. The key or switch can be placed anywhere in the circuit.
Answer
Answer: True
5. The amount of heat produced in a wire depends on its material, length and thickness.
Answer
Answer: True
6. CFLs consume more electricity than ordinary bulbs.
Answer
Answer: False
7. For different requirements, the wires of different materials, different lengths and thicknesses are used.
Answer
Answer: True
8. A fuse is used to save energy in electrical circuits.
Answer
Answer: False
9. MCBs are the switches which automatically turn off when current in a circuit exceeds the safe limit.
Answer
Answer: True
10. When an electric current flows through a wire, it behaves like a magnet.
Answer
Answer: True
We hope the given NCERT MCQ Questions for Class 7 Science Chapter 14 Electric Current and Its Effects with Answers Pdf free download will help you. If you have any queries regarding Electric Current and Its Effects CBSE Class 7 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.
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