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प्रश्न
Write true or false for a given statement.
Wool is a conductor of electricity.
विकल्प
True
False
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उत्तर
False
Wool is an insulator of electricity.
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संबंधित प्रश्न
Figure shows four cells fixed on a board. Draw lines to indicate how you will connect their terminals with wires to make a battery of four cells.
Longer line in the symbol for cell represents its ______ terminal.
When the electric current through the fuse exceeds a certain limit, the fuse wire melts and breaks.
An electrician is carrying out some repairs in your house. He wants to replace a fuse by a piece of wire. Would you agree? Give reasons for your response.
Select the correct alternative
Electricity can flow through
Select the correct alternative
Electricity does not flow through
What is a battery?
Mark the correct choice
- Assertion: In a simple battery circuit the point of highest potential is the positive terminal of the battery.
- Reason: The current flows towards the point of the highest potential
How many electrons are passing per second in a circuit in which there is a current of 5 A?
A combination of two or more cells is called a ______.
