When the electric current through the fuse exceeds a certain limit, the fuse wire melts and breaks.

True

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False

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Solution

The correct option is A True
(True)
The statement is true. The electric fuse works on the principle of heating effect of electric current. The amount of heating caused depends on the amount of current flowing through the wire. If current exceeds a certain limit, due to excessive heating the fuse wire will automatically melt.

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Similar questions

Question 9 (b)
Mark ‘T’ if the statement is true and ‘F’ if it is false:
When the electric current through the fuse exceeds a certain limit, the fuse wire melts and breaks.

Q. When the current flowing through the fuse wire exceeds the safety limit, then it will be ______ breaking the circuit.

The fuse wire melts when high electric current passes through the circuit due to its:

Mark ‘T’ if the statement is true and ‘F’ if it is false:

(a) To make a battery of two cells, the negative terminal of one cell is connected to the negative terminal of the other cell. (T/F)

(b) When the electric current through the fuse exceeds a certain limit, the fuse wire melts and breaks. (T/F)

(d) An electric bell has an electromagnet. (T/F)

Q. Write True (T) or False (F) against the following statements in the given brackets:
1. Current flows through a circuit when it is open. ( )
2. Electric bell is based on the heating effect of current. ( )
3. An electric bell has an electromagnet. ( )
4. To make a battery of two cells, the negative terminal of one cell is connected to the negative terminal of the other cell. ( )
5. When the electric current through the fuse exceeds a certain limit, the fuse wire melts and breaks. ( )
6. The magnetic strength in a conductor decreases with the increase in current. ( )

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