Question
Download Solution PDFWhich of the following devices is based on the phenomenon of electromagnetic induction?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Generator.
Key Points
- Electromagnetic induction
- It was first discovered by Faraday’s, therefore, it is also known as Faraday’s laws of electromagnetic induction.
- We know, the generator basic principle of operation, is electromagnetic induction. Hence, Option 3 is correct.
- When a change in flux linkages is changed, an emf or voltage is induced, thus we get voltage and hence current as our output which is desired for generators.
- We know, in generators, the input is mechanical and the output is electrical.
- So, with this change in the magnetic field, we get an induced emf and hence current.
- The mechanical force is used to bring in the changes in magnetic flux which in turn produces electricity.
Last updated on Jul 10, 2025
-> RRB NTPC Under Graduate Exam Date 2025 has been released on the official website of the Railway Recruitment Board.
-> The RRB NTPC Admit Card will be released on its official website for RRB NTPC Under Graduate Exam 2025.
-> Candidates who will appear for the RRB NTPC Exam can check their RRB NTPC Time Table 2025 from here.
-> The RRB NTPC 2025 Notification released for a total of 11558 vacancies. A total of 3445 Vacancies have been announced for Undergraduate posts like Commercial Cum Ticket Clerk, Accounts Clerk Cum Typist, Junior Clerk cum Typist & Trains Clerk.
-> A total of 8114 vacancies are announced for Graduate-level posts in the Non-Technical Popular Categories (NTPC) such as Junior Clerk cum Typist, Accounts Clerk cum Typist, Station Master, etc.
-> Prepare for the exam using RRB NTPC Previous Year Papers.
-> Get detailed subject-wise UGC NET Exam Analysis 2025 and UGC NET Question Paper 2025 for shift 1 (25 June) here