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Class 6 Exam  >  Class 6 Tests  >  Science Class 6  >  Olympiad Test: Electricity & Circuits - Class 6 MCQ

Olympiad Test: Electricity & Circuits - Class 6 MCQ


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20 Questions MCQ Test Science Class 6 - Olympiad Test: Electricity & Circuits

Olympiad Test: Electricity & Circuits for Class 6 2025 is part of Science Class 6 preparation. The Olympiad Test: Electricity & Circuits questions and answers have been prepared according to the Class 6 exam syllabus.The Olympiad Test: Electricity & Circuits MCQs are made for Class 6 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Electricity & Circuits below.
Solutions of Olympiad Test: Electricity & Circuits questions in English are available as part of our Science Class 6 for Class 6 & Olympiad Test: Electricity & Circuits solutions in Hindi for Science Class 6 course. Download more important topics, notes, lectures and mock test series for Class 6 Exam by signing up for free. Attempt Olympiad Test: Electricity & Circuits | 20 questions in 20 minutes | Mock test for Class 6 preparation | Free important questions MCQ to study Science Class 6 for Class 6 Exam | Download free PDF with solutions
Olympiad Test: Electricity & Circuits - Question 1
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Which of the following is a good conductor of electricity?

Detailed Solution for Olympiad Test: Electricity & Circuits - Question 1
Copper allows electricity to pass through easily due to the free movement of electrons, making it a good conductor. Plastic, glass, and rubber are insulators.
Olympiad Test: Electricity & Circuits - Question 2
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Which part of the electric circuit provides energy to the circuit?

Detailed Solution for Olympiad Test: Electricity & Circuits - Question 2
A battery stores chemical energy and converts it into electrical energy, supplying power to the circuit.
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Olympiad Test: Electricity & Circuits - Question 3
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What type of circuit allows electricity to flow?

Detailed Solution for Olympiad Test: Electricity & Circuits - Question 3
In a closed circuit, there is a continuous path for electricity to flow. An open or broken circuit prevents current flow.
Olympiad Test: Electricity & Circuits - Question 4
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Which device is used to open or close an electric circuit?
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 4
A switch controls the flow of current by opening (breaking) or closing (completing) the circuit.
Olympiad Test: Electricity & Circuits - Question 5
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In an electric circuit, current flows from:
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 5
Conventionally, current flows from the positive terminal to the negative terminal of a battery, even though electrons move in the opposite direction.
Olympiad Test: Electricity & Circuits - Question 6
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Which of these is a source of direct current (DC)?
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 6
Solar cells produce direct current (DC). In contrast, an electric generator often produces alternating current (AC).
Olympiad Test: Electricity & Circuits - Question 7
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What happens to the bulb when the circuit is incomplete?
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 7
A complete (closed) circuit is required for current to flow and light the bulb. Incomplete circuits stop the flow of electricity.
Olympiad Test: Electricity & Circuits - Question 8
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Which of these materials is an insulator?
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 8
Insulators like wood do not allow electricity to pass through. Metals such as iron and aluminium are good conductors.
Olympiad Test: Electricity & Circuits - Question 9
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A device used to measure electric current is called:
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 9
An ammeter measures the flow of current in amperes. Voltmeters measure voltage, and galvanometers detect small currents.
Olympiad Test: Electricity & Circuits - Question 10
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The unit of electric current is:
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 10
The SI unit for measuring electric current is the ampere, symbolized as "A."
Olympiad Test: Electricity & Circuits - Question 11
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What is the main function of a fuse in an electric circuit?
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 11
A fuse melts when excessive current flows, breaking the circuit and preventing damage to devices or fire hazards.
Olympiad Test: Electricity & Circuits - Question 12
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In a series circuit, if one bulb is removed or burns out:
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 12
In a series circuit, all components are connected in a single path. If one component fails, the entire circuit stops working.
Olympiad Test: Electricity & Circuits - Question 13
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Which of these is an example of a closed circuit?
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 13
When the switch is on, the circuit is closed, allowing current to flow. Broken wires or open switches result in incomplete circuits.
Olympiad Test: Electricity & Circuits - Question 14
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Electricity is the flow of:
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 14
Electricity is the movement of electrons (negative charges) through a conductor.
Olympiad Test: Electricity & Circuits - Question 15
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Which of the following is NOT an effect of electric current?
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 15
Electric current causes heating, magnetic, and chemical effects, but sound is not a direct effect of current.
Olympiad Test: Electricity & Circuits - Question 16
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The filament of an electric bulb is made of:
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 16
Tungsten is used due to its high melting point, allowing it to glow without melting when electricity passes through.
Olympiad Test: Electricity & Circuits - Question 17
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A material that allows electricity to flow easily is called a:
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 17
Conductors like metals permit the flow of electric current due to their free electrons.
Olympiad Test: Electricity & Circuits - Question 18
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What happens to the current in a parallel circuit when one path is broken?
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 18
In a parallel circuit, each path operates independently. If one path is broken, others remain functional.
Olympiad Test: Electricity & Circuits - Question 19
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Which of the following is the symbol for a battery in a circuit diagram?
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 19
A battery is represented by two parallel lines, where the longer line represents the positive terminal and the shorter line the negative terminal.
Olympiad Test: Electricity & Circuits - Question 20
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Which of these appliances does NOT use the heating effect of electric current?
Detailed Solution for Olympiad Test: Electricity & Circuits - Question 20
A refrigerator primarily uses electric current for cooling, while devices like irons and toasters use the heating effect.
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