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प्रश्न
What are conductors and insulators of electricity? Give two examples of each.
Write short notes on conductors and insulators.
उत्तर १
The substances which allow electric current to flow through them easily are called conductors. Examples: Impure water and metals.
The substances which do not allow the electric current to flow through them are called insulators. Examples: Rubber and wood.
उत्तर २
- Conductors:
The rate of flow of electric charges in a circuit is called electric current. The materials which allow electric charges to pass through them are called conductors.
Examples: Copper, iron, aluminum, impure water, earth, etc.
- Iniulaton (Non-Conductors):
The materials which do not allow electric charges to pass through them are called insulators or non-conductors. Examples: plastic, glass, wood, rubber, china clay, ebonite, etc.
संबंधित प्रश्न
Write true or false for a given statement.
All metals are conductors of electricity.
Write true or false for a given statement.
The switch should not be touched with wet hands.
Fill in the blank
_______ pass electricity through them.
State two differences between a conductor and an insulator of electricity.
Name four electric conductors and four electric insulators.
Is it correct to say that a resistance wire is an insulator or a bad conductor? Explain your answer.
A current of 1.2 A flows through a conductor for 3.0 s. What amount of charge passes through the conductor?
Differentiate between:
Conductors and insulators.
Give one activity to prove that air is an insulator.
Assertion (A): It is very easy for our body to receive electric shock.
Reason (R): Human body is a good conductor of electricity.
In conducting materials electrons are ______ bounded with atoms.
Assertion (A): Insulators do not allow the flow of current through themselves.
Reason (R): They have no free charge carriers.
Name few insulators.
Picture based Question
Three conductors are joined as shown in the diagram
The current in conductor RS is 10 A. The current in conductor QR is 6 A. What will be the current in conductor PR
- 4 A
- 6 A
- 10 A
- 16 A
Explain why the bulb would not glow in the arrangement shown in Figure.
Electricians wear rubbers gloves because it is ______.
An insulator gives a lot of ______ to the flow of charge (electron).
Why is a layer of zinc coated over iron?
