Question

The heating element of a water heater or filament of electric bulbs are in the form of a coil. Why are they not in the form of straight wires?

Answer 1

Because the current takes more time to pass through the coil than a straight wire.if current will take less time means there is a strong heating

Answer 2

The current takes more time to pass through the coil than a straight wire.

Explanation:

• The current takes more time to pass through the coil than a straight wire.
• Because current will take less time means there is a strong heating.
• Nichrome wire is used in heater.
• Most resistance wire heating elements use nichrome 80/20, which means 80% nickel and 20% chromium.
• Nichrome 80/20 is an ideal material, because it has relatively high resistance and forms an adherent layer of chromium oxide when it is heated for the first time.
• A heating element converts electrical energy into heat through the process of joule heating.
• Electric current through the element encounters resistance, resulting in heating of the element.

To Learn More...

1.How to heating rod works​

https://brainly.in/question/9131175

2.Two identical wires one of Nichrome and other copper are connected in series and a current I is passed through them.State the change observed in the temperature of the 2 wires .Justify your answer .State the law which explains the above observation.

Hepl Plzz....

https://brainly.in/question/4746818