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.
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Answer:
a) when the swich is open the flow of electric current....
Explanation:
a)because the supply of current is cut which results in the appliances not to work in such condition
b)because if it is made up of wire that melts easily because when the voltage across the fuse is greater than 220v then it will breake and safe the rest of the devices.
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Answer:
The above answer is correct . You can write that
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