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Physics 10 Chapter 14 - Current and Electricity - 35
1.
What happens to fuse when excess current flows?
a) Metal wire becomes non-metal
b) Metal wire is disappeared
c) Metal wire becomes strong
d) Metal wire melts
2.
What ranges of fuses are commonly used?
a) 13 A
b) 10 A
c) 5 A
d) All of these
3.
What ranges of fuses are commonly used?
a) 30 A
b) 5 A
c) All of these
d) 13 A
4.
Which of the following statement is true about connections of fuses?
a) Fuses should be connected with the neutral wire
b) Fuses should have more rating than electrical appliance
c) Switch ON the main before changing any fuse
d) Fuses should be connected with the ground wire
5.
Which of the following statement is true about connections of fuses?
a) Fuses should be connected with the live wire
b) Fuses should be connected with the ground wire
c) Fuses should have less rating than electrical appliance
d) Switch ON the main before changing any fuse
6.
Which of the following statement is true about connections of fuses?
a) Fuses should have less rating than electrical appliance
b) Fuses should be connected with the ground wire
c) Switch OFF the main before changing any fuse
d) Fuses should be connected with the neutral wire
7.
The circuit breaker disconnects the supply automatically if ..................exceeds the normal value?
a) Resistance
b) Current
c) Voltages
d) Potential difference
8.
Which of the following method protects the user from electric shock?
a) Earthing
b) Fuse
c) Circuit breaker
d) None of these
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