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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.
The bulb in the circuit shown in Figure does not glow. Can you identify the problem? Make necessary changes in the circuit to make the bulb glow.
To make a battery of two cells, the negative terminal of one cell is connected to the negative terminal of the other cell.
When the electric current through the fuse exceeds a certain limit, the fuse wire melts and breaks.
Zubeda made an electric circuit using a cell holder shown in Figure, a switch and a bulb. When she put the switch in the ‘ON’ position, the bulb did not glow. Help Zubeda in identifying the possible defects in the circuit.
Select the correct alternative
Electricity does not flow through
Draw a circuit diagram for a bulb connected to a cell with a switch. Mark arrow in the diagram to indicate the direction of flow of current.
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?
Draw the symbols of the following circuit components.
Electric cell
