Transmission of Electric Signal through Wires MCQs Quiz Worksheet PDF Download

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MCQs on Transmission of Electric Signal through Wires Quiz PDF Download

MCQ: Vibration of diaphragm produces

  1. heat waves
  2. light waves
  3. sound waves
  4. electric current

C

MCQ: Speed of sound in air is just

  1. 1158 km per hour
  2. 1349 km per hour
  3. 1200 km per hour
  4. 1246 km per hour

D

MCQ: In 1876, a simple telephone model to send voice in form of electrical signal from one place to another was made by

  1. Charles Babbage
  2. John Logie
  3. Michael Faraday
  4. Alexander Graham

D

MCQ: Electric current flowing through an electromagnetic in receiver produces a varying

  1. potential field
  2. magnetic field
  3. shock field
  4. none of the above

B

MCQ: When we speak into mouthpiece, sound vibrations also vibrate the

  1. diaphragms
  2. mentacles
  3. cylinder braid
  4. insulating sleeve

A