-
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
Predictors & Articles
Colleges
Resources
-
Media, Mass Communication and Journalism
Colleges
Resources
-
Finance & Accounts
Top Courses & Careers
Colleges
Get Answers to all your Questions
(a) You are required to select a carbon resistor of resistance of from a shopkeeper. What would be the sequence of colour bands required to code the desired resistor?
(b) Why do carbon resistors find extensive use in electronic circuits?
(c) Write two important precautions used in determining the resistance of a wire of unknown resistance using meter bridge.
Answers (1)
(a)
3 stands for the orange colour
6 stands for Blue colour
implies a yellow colour
stands for the Gold colour
The first two colours indicate two significant figures 8 and 6. The third colour indicates decimal multiple and the last colour indicates to tolerance
(b) Carbon resistors find extensive use in electronic circuits because :
They are impact
They are inexpensive
They have high electrical resistivity so can be used to produce high resistances.
(c) Precaution used in determining the resistance of a wire of unknown resistance using metre bridge are
select the standard known resistance in such a way that balance point should lie between 30 cm and 70 cm
Do not keep the jockey and the wire in contact for a long time.
Crack CUET with india's "Best Teachers"
- HD Video Lectures
- Unlimited Mock Tests
- Faculty Support
