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Important Questions Test: Electricity & Circuits


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25 Questions MCQ Test Science & Technology for UPSC CSE | Important Questions Test: Electricity & Circuits

Important Questions Test: Electricity & Circuits for Class 6 2022 is part of Science & Technology for UPSC CSE preparation. The Important Questions Test: Electricity & Circuits questions and answers have been prepared according to the Class 6 exam syllabus.The Important Questions Test: Electricity & Circuits MCQs are made for Class 6 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Important Questions Test: Electricity & Circuits below.
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Important Questions Test: Electricity & Circuits - Question 1

Bulb glows only in

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 1

Only a closed circuit is a complete circuit.

The current flow through the circuit and the bulb glows in the closed circuit

Important Questions Test: Electricity & Circuits - Question 2

----------- is the positive terminal of an electric cell.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 2

Metal cap is the positive terminal of the electric cell. The Metal disc is the negative terminal.

Important Questions Test: Electricity & Circuits - Question 3

The tiny coiled metal wire present inside the bulb is called____________.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 3

An incandescent light bulb has a small thin wire with two bigger wires holding it up. This wire is called a filament. The filament is the part of the light bulb that produces light. Filaments in incandescent light bulbs are made of tungsten.

Important Questions Test: Electricity & Circuits - Question 4

A combination of two or more electric cells is called___________.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 4

A combination of two or more electric cells is called Battery

Important Questions Test: Electricity & Circuits - Question 5

An electric bulb has ____________terminals

Important Questions Test: Electricity & Circuits - Question 6

----------- is an electric device which easily closes or opens an electric circuit.

Important Questions Test: Electricity & Circuits - Question 7

A material which does not allow the electricity to pass through it is___________.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 7

An electrical insulator is a material whose internal electric charges do not flow freely; very little electric current will flow through it under the influence of an electric field. 

Important Questions Test: Electricity & Circuits - Question 8

Non metals like __________and __________are conductors of electricity

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 8

Carbon is the only gas, when solidified, that can conduct electricity. This is of the form Graphite, when it only has 3 bonds between the atoms. This leaves electrons to flow through the network structure.

Important Questions Test: Electricity & Circuits - Question 9

A material which allows the electricity to pass through it is ________.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 9

Conductors are the materials or substances which allow electricity to flow through them. They are able to conduct electricity because they allow electrons to flow inside them very easily.

Important Questions Test: Electricity & Circuits - Question 10

Electric energy is produced from the____________ within the cell.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 10

In simple cell battery converts chemical energy into electricity. The chemical reaction produces electrons, which then collect at the negative terminal of the battery. When there is a connection between the positive and negative terminal, the electrons flow to the positive terminal.

Important Questions Test: Electricity & Circuits - Question 11

A complete electric circuit is called ______________ electric circuit.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 11

Closed circuit means a complete electrical connection around which current flows or circulates.

Important Questions Test: Electricity & Circuits - Question 12

----------- is an insulator.

Important Questions Test: Electricity & Circuits - Question 13

__________is a conductor.

Important Questions Test: Electricity & Circuits - Question 14

The electric current in a closed circuit always flows from the ___________terminal of the electric cell to the ______terminal.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 14

The electric current always flows from the higher potential to lower potential. The positive terminal of an electric cell is at higher potential with respect to its negative terminal. Hence, in the given circuit, the current will flow from terminal P to terminal N. 

Important Questions Test: Electricity & Circuits - Question 15

The base of an electric cell is its ___________terminal.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 15

Metal cap is the positive terminal and the metal disc is the negative terminal of the electric cell. An electric cell produces electricity from the chemicals stored inside it.

Important Questions Test: Electricity & Circuits - Question 16

The path along which electric current flows is_____________.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 16

Circuit is a path through which electric charges flow. A continuous, unbroken path through which electrons can flow is a closed circuit. Charges, or current, can flow only through a closed circuit. A break or opening in a circuit creates an open circuit.

Important Questions Test: Electricity & Circuits - Question 17

In _____________ electrical energy is transformed in to mechanical energy.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 17

As the electrical energy is used to run blades in the mixer grinder and hence we say in mixer grinder electrical energy is transformed into mechanical energy(rotation of blades).

Important Questions Test: Electricity & Circuits - Question 18

------------- is an energy which flows in an electric circuit.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 18

An electric current is a flow of electric charge. In electric circuits this charge is often carried by moving electrons in a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in an ionised gas (plasma).

Important Questions Test: Electricity & Circuits - Question 19

The central _____________of an electric cell is always positive.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 19

Positive charge is up and the current is going to the negative charge. That's why the center terminal of an electric cell is always positive.

Important Questions Test: Electricity & Circuits - Question 20

Kerosene oil is an example of _______________.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 20

Petrol and kerosene oil have very low electrical conductivity and hence they are poor electrical conductors (i.e. insulators).

Important Questions Test: Electricity & Circuits - Question 21

The cylindrical container of electric cell is made of __________ and acts as negative terminal.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 21

Zinc due to electromagnetic series.

Important Questions Test: Electricity & Circuits - Question 22

The wire which carries away the current to the power house is called____________.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 22

The live wire carries current to the appliance at a high voltage. The neutral wire completes the circuit and carries current away from the appliance. The third wire, called the earth wire (green/yellow) is a safety wire and connects the metal case of the appliance to the earth. 

Important Questions Test: Electricity & Circuits - Question 23

_____________ is a safety wire which protect us from electric shocks and electric fire.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 23

The main function of the earth wire is to conduct the leaking current from the electrical appliance to the ground . It is connected to the outer metallic body of the appliance . It is necessary to earth metallic appliances , as it protects the user from electric shocks by transferring the current to the earth.

Important Questions Test: Electricity & Circuits - Question 24

____________ is a device which converts chemical energy in to electrical energy.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 24

As electric cell contains chemicals in it which is present as chemical energy the cell converts it into electrical energy and the appliance uses the electrical energy because it cannot use the direct chemicals as there enegy

Important Questions Test: Electricity & Circuits - Question 25

An electric cell has __________ terminals.

Detailed Solution for Important Questions Test: Electricity & Circuits - Question 25

An electric cell has two terminals: Positive terminal and Negative terminal. Electricity to the bulb in a torch is provided by the electric cell. Electric cells are also used in alarm clocks, wristwatches, transistor radios, cameras and many other devices.

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