A person uses a fuse of 5A in a circuit in which a circuit in which a current of 4.8 A is flowing . will anything happen in the circuit ?give reason for your answer?

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Solution

The rated current of fuse is nothing but the current at which the fuse melts and circuit breaks.

As the current flow in the circuit is (4.8 A) is less than the rated current of fuse, the circuit can't break and all devices work as usual.

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Question 2

Choose the statement which is not correct in the case of an electric fuse.

(a) Fuses are inserted in electric circuits of all buildings

(b) There is a maximum limit on the current which can safely flow through the electric circuits

(d) If a proper fuse is inserted in a circuit it will blow off if current exceeds the safe limit

An electric kettle is rated 3 kW, 250 V. Give reason whether this kettle can be used in a circuit which contains a fuse of current rating 13 A.

Fill in the following blanks with suitable words:
(a) A current is a flow of ... For this to happen there must be a ...circuit.
(b) Current is measured in .... using an ..... placed in .... in a circuit.

For a fuse rated at 5A, the fuse melts if the current in the circuit exceeds 5A.

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A person uses a fuse of 5A in a circuit in which a circuit in which a current of 4.8 A is flowing . will anything happen in the circuit ?give reason for your answer?

The rated current of fuse is nothing but the current at which the fuse melts and circuit breaks. As the current flow in the circuit is (4.8 A) is less than the rated current of fuse, the circuit can't break and all devices work as usual.

The rated current of fuse is nothing but the current at which the fuse melts and circuit breaks.

As the current flow in the circuit is (4.8 A) is less than the rated current of fuse, the circuit can't break and all devices work as usual.