Question

What are the applications of the heating effect of electric current?

Answer 1

Heating effect of electric current:

Whenever an electric current flows through a conductor (such as a high resistance wire), this same conductor heats up and emits warmth. This is referred to as the heating impact of electric current.

Applications of Heating effect of Electric current:

Electrical fuse:

1. A short segment of wire with a low melting temperature is constructed of tin and lead alloys. The fuse wire is linked to the electrical supply equipment in sequence.
2. Whenever the electric current surpasses the power rating, the fuse wire becomes heated to a temperature over its melting point, and the electrical circuit is immediately turned off.

An electric heater or electric iron:

1. All of this is founded on the theory of Joule's heating effect, which states that when a constant current is sent across a wire, heat is created.
2. Whenever a big current throughout the range of $3-5\mathrm{Amp}$ may run through these electronic devices, they incorporate a coil formed of an alloy of nickel and chromium.

Electric welding and Electric furnace:

1. Whenever two metal bars come into contact, a strong electric current flows through them. The contact point is designed in such a way that it produces very high temperatures in a short period of time by creating very excellent resistance at the point of access. This high temperature is appropriate for welding.
2. Calcium carbide and carborundum are the main components of an electric furnace. High temperatures may be produced by passing a significant electric current through a coiled calcium carbide and carborundum.