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Overloading and Short circuiting

Which of the ...

Question

Which of the following circuits will still be dangerous even if the fuse blows and electric iron stop working during a short circuit ?

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Solution

Circuit $A$ is not dangerous after fuse blocks because fuse is filled in the live wire; but circuit $B$ is dangerous even if fuse belong because the fuse is in the neutral wire.

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Similar questions

Q. Which of the following observations for the electric circuit shown below are correct?

(i) Fuse 1 blows up before fuse 2, in case of excessive current.
(ii) Bulb C glows if bulb B gets fused.
(iii) Bulbs B and C glow if bulb A gets fused.

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

(c) There is a minimum limit on the current which can safely flow in the electric circuits

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

State whether true or false.

When a short-circuit takes place, the fuse wire melts and breaks the electric circuit.

Q. During short-circuiting, the current flowing in the electrical circuit __________.

Q. What happens to the flow of electric current during a short circuit?

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