A dynamo converts energy from one form to another. Name the two forms of energy in proper sequence.
Important Questions on Electromagnetic Induction
A galvanometer is connected to the ends of a metal rod. The rod falls with its length horizontally extending East-West. What changes will you observe in the galvanometer? Explain the reason.
A galvanometer is connected to the ends of a metal rod. The rod falls with its length horizontally extending North-South. What changes will you observe in the galvanometer?
Name two devices in which the principle of electromagnetic induction is used.
Many electrical appliances and circuits are earthed. What is the reason?
What is the usual colour code followed for connecting live, neutral and earth wire?
What is meant by overloading in an electric supply? How can it be prevented?
What precautions should be taken to avoid overloading of domestic electric circuit?
Why is the material of low melting point is chosen for fuse wire?
