Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions



Water heaters and bread toasters have a filament known as NICROME. this the filament of a metal similar to tungsten. This works on electricity. When the electricity is passed into the following apparatus the NICROME filament gets heating up slowly and becomes red hot and produce heat. Now a days these are also used in the INDUCTON HEATERS and also EMMERSION RODS to cook foods and to heat water.
0 0 0

This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Heaters and bread toasters have a heating element made of high resistance alloys like nichrome (80% Nickel and 20% chromium).  The appliance consists of a uniform tube (cylindrical) which is wound in a coil form in a water heater.  The resistance is in a ribbon (strip) form in a toaster to radiate most energy through a large surface area.

When electricity flows in the coil, the electrons travel in side the alloy.  They accelerate due to AC potential. Then the electrons collide with atoms on the way and lose energy. These collisions generate a lot of heat and rise the temperature of the coil. 

In water heater the heat is transferred by conduction from coil to water. 

In a toaster, the heat is transferred from heating plates to bread through radiation in air.

0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts