Question

GIVE ANY TWO APPLICATION OF JOULE'S HEATING ?(3 MARK)

Answer 1

(^O^)❤HEY MATE❤

(^O^)❤HERE'S YOUR ANSWER❤

1.Electric heating device

 
Electric iron, electric heater, electric toaster are some of the appliances that work on the principle of heating effect of current. In these appliances, Nichrome which is an alloy of nickel and chromium is used as the heating element for the following reasons.
 
1.     It has high specific resistance
 
2.     It has high melting point
 
3.     It is not easily oxidized
 

2 .Fuse wire

 
Fuse wire is an alloy of lead 37% and tin 63%. It is connected in series in an electric circuit. It has high resistance and low melting point. When large current flows through a circuit due to short circuiting, the fuse wire melts due to heating and hence the circuit becomes open. Therefore, the electric appliances are saved from damage.