Question
Download Solution PDFIn a metal filament bulb, the filament used as a heating coil is tungsten due to its _______.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFTungsten is used for making filament for the electric bulb, because of the following reasons:
- It has a high melting point and retains its strength when heated.
- Due to high resistivity, it does not burn at room temperature but the bulb glows at high temperatures.
- It is very resistant to corrosion and has high tensile strength.
- Tungsten filament is highly flexible so it can be molded into any shape.
Last updated on Jul 1, 2025
-> SSC JE Electrical 2025 Notification is released on June 30 for the post of Junior Engineer Electrical, Civil & Mechanical.
-> There are a total 1340 No of vacancies have been announced. Categtory wise vacancy distribution will be announced later.
-> Applicants can fill out the SSC JE application form 2025 for Electrical Engineering from June 30 to July 21.
-> SSC JE EE 2025 paper 1 exam will be conducted from October 27 to 31.
-> Candidates with a degree/diploma in engineering are eligible for this post.
-> The selection process includes Paper I and Paper II online exams, followed by document verification.
-> Prepare for the exam using SSC JE EE Previous Year Papers.