Home » Computer » Miscellaneous » Question

Miscellaneous

Easy Questions
Moderate Questions
Difficult Questions

Computer

General Introduction
Development of Computer
Computer Hardware
Computer Architecture
Input and Output Device
Memory
Presonal Computer
Design Tools and Programming Langguages
Programming Concepts
Data Representation and Number System
Software
Operating System(OS)
Database Concepts
Data Communication
Internet
Computer Security
Microsoft Windows
Microsoft Office
Miscellaneous
  1. Optic fibres are used in place of wire cables because
    1. they generate strong magnetic fields
    2. they do not generate magnetic fields
    3. they do not require boosting
    4. they are more economical
Correct Option: B

Optical fibers are used instead of metal wires because signals travel along them with less loss and are also immune to electromagnetic interference. Besides, there are no radiated magnetic fields around optical fibers; the electromagnetic fields are confined within the fiber. Since fiber optics do not radiate electromagnetic energy, emissions cannot be intercepted.


Your comments will be displayed only after manual approval.