Electromagnetics Set 25

Electrical Engineering

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This set of Electromagnetics Multiple Choice Questions & Answers (MCQs) focuses on Electromagnetics Set 25

Q1 | kV. Find „a‟.
  • 10mm
  • 100mm
  • 1000m
  • 1000cm
Answer: 1000cm
Q2 | The unit for dielectric strength is ____________
  • v/m2
  • mv/m2
  • mv/m
  • vm
Answer: mv/m
Q3 | m, calculate the dielectric strength.
  • 2mv/m
  • 4mv/m
  • 6mv/m
  • 8mv/m
Answer: 2mv/m
Q4 | Leakage in capacitors is primarily caused by _________
  • transistors
  • resistors
  • inductors
  • dc motors
Answer: transistors
Q5 | What is the conduction current when a capacitor is fully charged?
  • infinity
  • zero
  • 100a
  • 1000a
Answer: zero
Q6 | The flow of electrons in dielectric is due to _________
  • conduction
  • potential difference
  • breakdown
  • resistance
Answer: breakdown
Q7 | Displacement current depends on ___________
  • moving charges
  • change in time
  • both moving charges and change in time
  • neither moving charges nor change in time
Answer: change in time
Q8 | Paper capacitor is a type of _________
  • fixed capacitor
  • variable capacitor
  • either fixed or variable depending on its usage
  • neither fixed nor variable
Answer: fixed capacitor
Q9 | In a variable capacitor, capacitance can be varied by ______
  • turning the rotatable plates in or out
  • sliding the rotatable plates
  • changing the plates
  • changing the material of plates
Answer: turning the rotatable plates in or out
Q10 | The simplest kind of capacitor is ________
  • ceramic capacitor
  • electrolyte capacitor
  • tuning capacitor
  • paper capacitor
Answer: paper capacitor
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