-
Engineering and Architecture
Exams
Colleges
Predictors
Resources
-
Computer Application and IT
Quick Links
Colleges
-
Pharmacy
Colleges
Resources
-
Hospitality and Tourism
Colleges
Resources
Diploma Colleges
-
Competition
Other Exams
Resources
-
School
Exams
Top Schools
Products & Resources
-
Study Abroad
Top Countries
Student Visas
-
Arts, Commerce & Sciences
Exams
Colleges
Upcoming Events
Resources
-
Management and Business Administration
Colleges & Courses
Predictors
-
Learn
Online Courses
Engineering Preparation
Medical Preparation
-
Online Courses and Certifications
Top Streams
Specializations
- Digital Marketing Certification Courses
- Cyber Security Certification Courses
- Artificial Intelligence Certification Courses
- Business Analytics Certification Courses
- Data Science Certification Courses
- Cloud Computing Certification Courses
- Machine Learning Certification Courses
- View All Certification Courses
Resources
-
Medicine and Allied Sciences
Colleges
Predictors
Resources
-
Law
Resources
Colleges
-
Animation and Design
Exams
Predictors & Articles
Colleges
Resources
-
Media, Mass Communication and Journalism
Exams
Colleges
Resources
-
Finance & Accounts
Top Courses & Careers
Colleges
Get Answers to all your Questions
- Home
- Engineering
- Need explanation for: A working transistor with its three legs marked P ,Q and R is tested using a multimeter. No conduction is found between P and Q . By connecting the common (negative) terminal of the multimeter to R and the other (positive) termi
A working transistor with its three legs marked P ,Q and R is tested using a multimeter. No conduction is found between P and Q . By connecting the common (negative) terminal of the multimeter to R and the other (positive) terminal to P or Q , some resistance is seen on the multimeter. Which of the following is true for the transistor?
- Option 1)
It is an npn transistor with R as collector.
- Option 2)
It is an npn transistor with R as base.
- Option 3)
It is an pnp transistor with R as collector.
- Option 4)
It is an pnp transistor with R as emitter.
Answers (1)
As we learnt in
Transistor -
Three layered semiconducting device .
NPN or PNP
- wherein
1. Emitter is heavily doped
2. collector is moderately doped .
3. Base is lightly doped & very thin
Since by connecting R to negative terminal and P or Q to positive terminal, there is some resistance and hence it is in forward biased mode.
Hence, R has to be -n type.
R is collector and the transistor is npn.
Correct option is 1.
Option 1)
It is an npn transistor with R as collector.
This is the correct option.
Option 2)
It is an npn transistor with R as base.
This is an incorrect option.
Option 3)
It is an pnp transistor with R as collector.
This is an incorrect option.
Option 4)
It is an pnp transistor with R as emitter.
This is an incorrect option.
JEE Main high-scoring chapters and topics
Study 40% syllabus and score up to 100% marks in JEE
Similar Questions
- 0.27 g of a long chain fatty acid was dissolved in 100 cm3 of hexane. 10 mL of this solution was added dropwise to the surface of water in a
- 0.3 g of acid is neutralised by 40 cm3 .125N NaOH .equvivalent mass of acid is
- 1. A block of mass 10 kg is kept on a rough inclined as shown in figure. The coefficient of friction between the block and the surface is 0
Trending Articles/News
Latest Question
- A sum of money under compound interest doubles itself in 4 years. In how many years will it become 16 times itself? Option: 1 1
- A certain loan amounts, under compound interest, compounded annually earns an interest of Rs.1980 in the second year and Rs.2178 in the third year. How much interest did it earn in the first year?<
