Statement I: A fuse connected to an electrical circuit will blow off if the current succeeds the safe limit.

Statement II: There is a maximum limit on the current which can safely flow through a fuse connected to an electric circuit.

Both the statements are correct

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Statement 1 is correct and statement 2 is incorrect.

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Statement 1 is incorrect and statement 2 is correct.

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Both the statements are incorrect

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Solution

The correct option is C Statement 1 is incorrect and statement 2 is correct.

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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

Write true or false for each statement:

(a) A fuse wire has a high melting point.

(b) Flow of protons constitutes electric current.

(d) S.I. unit and commercial unit of electrical energy are same.

(e) Overloading of electric current in circuits can lead to short circuiting.

(f) Our body can pass electricity through it.

(g) The metallic cases of all appliances are insulators of electricity.

(h) The earth wire protects us from an electric shock.

(i) A switch should not be touched with wet hands.

(j) All electrical appliances in a household circuit work at the same voltage.

(k) In a cable,the green wire is the live wire.

(l) A fuse is connected to the live wire.

(m) A switch is connected to the neutral wire.

Q. A person connects too many electrical appliances to a single socket in his house. When all these electrical appliances connected to the single socket are switched on at the same time, the electric fuse of circuit blows off.
(a) What is the process of connecting too many electrical appliances to a single socket known as?
(b) Which effect of electric current is responsible for the blowing off of fuse wire?

Q. Statement 1: A fuse wire connected to an electric circuit must have a very high melting point.

Statement 2: There is a maximum limit on the current which can safely flow through a circuit when fuse is connected.

In an electrical circuit, an electric appliance is duly earthed, but fuse is placed in neutral wire. If the electric appliance short circuits the fuse blows off.

Will it be safe to touch electric appliance when the fuse blows off?

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Statement I: A fuse connected to an electrical circuit will blow off if the current succeeds the safe limit.​ Statement II: There is a maximum limit on the current which can safely flow through a fuse connected to an electric circuit.

The correct option is C Statement 1 is incorrect and statement 2 is correct.

Statement I: A fuse connected to an electrical circuit will blow off if the current succeeds the safe limit.

Statement II: There is a maximum limit on the current which can safely flow through a fuse connected to an electric circuit.