The property of electric current which is applicable in the fuse wire

The property of electric current which is applicable in the fuse wire is

chemical effect of current
magnetic effect of current
heating effect of current
optical property of current
This question was previously asked in
UPSC NDA-2 – 2016
The correct answer is C) heating effect of current. A fuse wire is designed to melt and break the circuit when the current flowing through it exceeds a certain limit. This melting is caused by the heat generated due to the resistance of the wire when current passes through it, which is known as the heating effect of electric current (Joule’s Law).
– Fuse wire protects electrical circuits from overcurrents.
– Its operation relies on melting due to excessive heat.
– The heat generated is proportional to the square of the current and the resistance of the wire (H = I²Rt).
– Chemical effect of current is related to electrolysis.
– Magnetic effect of current is used in devices like motors, relays, and electromagnets.
– Optical property of current is not a standard term; effects like light emission (LEDs) are related to current flow but not the principle behind a fuse.
Exit mobile version