Question
Download Solution PDFThe emitter current of a transistor is 1 mA. If 1% of the emitted current carriers are lost in the base recombination, what is the value β? Identify from the given options.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
For a transistor, the base current, the emitter current, and the collector current are related as:
IE = IB + IC
where IC = βdc IB
βdc = Current gain of the transistor which is defined as:
β is the fraction of emitter current passing to the collector side.
Calculation:
Let the emitter current be IE.
Since 1% of the emitted current carriers are lost in the base recombination, the collector current will be 99% of the emitter current, i.e.
IC = 0.99 IE
And the base current will be 1%, i.e. 0.01 IE
∴ β will be:
β = 99
Last updated on Jul 11, 2025
-> All the aspiring candidates who wish to sit for the online examination scheduled for 15th July 2025, can download the ALP CBAT Admit Card using the direct link provided in the article.
-> RRB ALP Exam Date OUT. Railway Recruitment Board scheduled the RRB ALP Computer-based exam for 15th July 2025. Candidates can check out the Exam schedule PDF in the article.
-> Railway Recruitment Board activated the RRB ALP application form 2025 correction link, candidates can make the correction in the application form till 31st May 2025.
-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.
-> Bihar Home Guard Result 2025 has been released on the official website.
-> 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