Question

Short answer questions
2. List the three conditions that have to be fulfilled for electric current to flow.
2. What is heating effect of electric current?
3. What is a solenoid?
4. Name any three parts of an electric bell.
5. Give reasons for the following.
(a) An electric current does not flow in a circuit when the switch in the circuit is 'open'.
(b) The wire in an electric fuse is made of a material that melts easily
(c) An electric bulb feels hot to touch after it has been on for some time.
(d) A magnetic needle gets deflected when it is brought close to a current carrying conductor
(e) The soft iron strip of an electric bell gets attracted to the electromagnet when the electric ber
is switched on.​

Answer 1

Answer:

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