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प्रश्न
The incomplete diagram of an electric bell is given in Figure. Draw winding of coil on the core and complete the electric circuit in the diagram.
G-Gong, H-Hammer, A-Armature, C-Core, B-Battery.
उत्तर
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संबंधित प्रश्न
Name one device that uses an electromagnet.
Electromagnets are made up of :
How is an electromagnet made? Name two factors on which the strength of magnetic field of the electromagnet depends.
State two ways through which the strength of an electromagnet can be increased.
Why is soft iron used as the core of the electromagnet in an electric bell?
Name the material used for making the armature of an electric bell. Give a reason for your answer.
What is an electroscope? Describe the different stages of charging a gold leaf electroscope negatively with the help of a diagram.
Assertion (A): When 2 long parallel wires, hanging freely are connected in parallel to a battery, they come closer to each other.
Reason (R): Wires carrying current in opposite directions repel each other.
Explain the working of the following device.
Speaker
Explain the working of the following device.
Magnetic levitation trains.
