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Domestic Electric Circuits

Which of the ...

Question

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

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Solution

Circuit B will be more dangerous because the fuse is not connected to the live wire. So even if the fuse blows, the live wire will still be connected to the device and the user may get an electric shock.

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Similar questions

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

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

Q. ____ is a material which break off the electric circuit from the supply in case of a short circuit to protect the circuit.

State whether true or false.

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

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