Question
Download Solution PDFElectric bulbs are usually filled with chemically inactive ______ gases
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT
- Electric bulb: It is an electric device that converts electric energy into heat and light energy.
- it is generally made of glass with inert gases filled in it (Nitrogen and argon).
- The filament is made of tungsten which has a very high melting point.
EXPLANATION:
- The closed glass chamber of the electric bulb contains an inactive (inert) gas, Argon.
- The glass chamber can’t be filled with air as the presence of oxygen will cause the filament to burn, i.e. react with oxygen.
- The glass chamber can’t be made vacuum. As in vacuum conditions, the filament will evaporate because of a very high temperature, making the bulb unusable.
- The inert gas within the bulb will maintain a particular pressure, preventing the filament from evaporating.
- Nitrogen is also used like argon. Therefore option 3 is correct.
Last updated on Jul 17, 2025
-> The Railway Recruitment Board has scheduled the RRB ALP Computer-based exam for 15th July 2025. Candidates can check out the Exam schedule PDF in the article.
-> RRB has also postponed the examination of the RRB ALP CBAT Exam of Ranchi (Venue Code 33998 – iCube Digital Zone, Ranchi) due to some technical issues.
-> UGC NET Result Date 2025 Out at ugcnet.nta.ac.in
-> UPPSC RO ARO Admit Card 2025 has been released today on 17th July 2025
-> Rajasthan Police SI Vacancy 2025 has been released on 17th July 2025
-> HSSC CET Admit Card 2025 has been released @hssc.gov.in
-> There are total number of 45449 Applications received for RRB Ranchi against CEN No. 01/2024 (ALP).
-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.
-> The official RRB ALP Recruitment 2025 provides an overview of the vacancy, exam date, selection process, eligibility criteria and many more.
->The candidates must have passed 10th with ITI or Diploma to be eligible for this post.
->The RRB Assistant Loco Pilot selection process comprises CBT I, CBT II, Computer Based Aptitude Test (CBAT), Document Verification, and Medical Examination.
-> This year, lakhs of aspiring candidates will take part in the recruitment process for this opportunity in Indian Railways.
-> Serious aspirants should prepare for the exam with RRB ALP Previous Year Papers.
-> Attempt RRB ALP GK & Reasoning Free Mock Tests and RRB ALP Current Affairs Free Mock Tests here
-> Bihar Police Driver Vacancy 2025 has been released @csbc.bihar.gov.in.