Current Affairs 2021 PDF

To crack any competitive exam like SSC, Railways, Insurance, UPSC, CLAT, Banking, State PSC Exams and other exams it is very important to answer all current affairs questions correctly. Gkseries Updates Current Affairs and Q&A packages in compiled and sorted topic wise to ensure easy accessibility of the information.

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Question

An effective way to prevent attenuation is :

A adding repeaters or amplifiers to a circuit
B compressing a circuit
C shielding wires
D none of these above
Answer & Explanation
Option: [A]

Attenuation can be prevented by adding amplifiers or repeaters at approximately spaced points.

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