
The material used for making the heating element of electrical appliances is
A) aluminium
B) copper
C) steel
D) nichrome
Answer
126.3k+ views
Hint: When the current is passed on the electrical conducting wire, the heat is generated on the wire. The heating element converts the electrical energy into the heat energy by the process of the Joule heating. To resist the generation of the wire the heating element is used. The direction of the current is independent for this process.
Complete step by step solution:
This heating element may be wire or ribbon, straight or coiled. Generally, they are used in common heating devices like bread toasters, hair dryers, furnaces for the stoves etc. The most common material used for the heating element is Nichrome. Nichrome is the alloy of the Nickel and chromium; in this alloy the nickel is $80\% $ and the chromium is $20\% $. So, this alloy is called nichrome $80/20$. It is an ideal material, because it has a high resistance to the heat and forms the layer of chromium oxide, when the nichrome is heated for the first time. After the formation of the layer of the chromium oxide, the material beneath the layer of chromium oxides will not oxidize, so it prevents the wire from heating. If the wire is more heated, it leads to the breaking of the wire or the burning out of the wire.
Hence, the option (D) is the correct answer.
Note: The nichrome is used to resist the heat, and the insulating material is used to cover the nichrome wire, it is secondary insulation to resist the heat formation of the wire by the external heat. And also, to resist the breaking of the wire due to heat.
Complete step by step solution:
This heating element may be wire or ribbon, straight or coiled. Generally, they are used in common heating devices like bread toasters, hair dryers, furnaces for the stoves etc. The most common material used for the heating element is Nichrome. Nichrome is the alloy of the Nickel and chromium; in this alloy the nickel is $80\% $ and the chromium is $20\% $. So, this alloy is called nichrome $80/20$. It is an ideal material, because it has a high resistance to the heat and forms the layer of chromium oxide, when the nichrome is heated for the first time. After the formation of the layer of the chromium oxide, the material beneath the layer of chromium oxides will not oxidize, so it prevents the wire from heating. If the wire is more heated, it leads to the breaking of the wire or the burning out of the wire.
Hence, the option (D) is the correct answer.
Note: The nichrome is used to resist the heat, and the insulating material is used to cover the nichrome wire, it is secondary insulation to resist the heat formation of the wire by the external heat. And also, to resist the breaking of the wire due to heat.
Recently Updated Pages
Wheatstone Bridge - Working Principle, Formula, Derivation, Application

Young's Double Slit Experiment Step by Step Derivation

JEE Main 2023 (April 8th Shift 2) Physics Question Paper with Answer Key

JEE Main 2023 (January 30th Shift 2) Maths Question Paper with Answer Key

JEE Main 2022 (July 25th Shift 2) Physics Question Paper with Answer Key

Classification of Elements and Periodicity in Properties Chapter For JEE Main Chemistry

Trending doubts
JEE Main 2025 Session 2: Application Form (Out), Exam Dates (Released), Eligibility & More

JEE Main Login 2045: Step-by-Step Instructions and Details

JEE Main Exam Marking Scheme: Detailed Breakdown of Marks and Negative Marking

JEE Main 2023 January 24 Shift 2 Question Paper with Answer Keys & Solutions

JEE Mains 2025 Correction Window Date (Out) – Check Procedure and Fees Here!

JEE Main Participating Colleges 2024 - A Complete List of Top Colleges

Other Pages
JEE Advanced Marks vs Ranks 2025: Understanding Category-wise Qualifying Marks and Previous Year Cut-offs

JEE Advanced 2025: Dates, Registration, Syllabus, Eligibility Criteria and More

Learn About Angle Of Deviation In Prism: JEE Main Physics 2025

JEE Main 2025: Conversion of Galvanometer Into Ammeter And Voltmeter in Physics

Dual Nature of Radiation and Matter Class 12 Notes: CBSE Physics Chapter 11

Electric field due to uniformly charged sphere class 12 physics JEE_Main
