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MCQs

Total Questions : 330 | Page 22 of 33 pages
Question 211. The unit for dielectric strength is ____________
  1.    V/m²
  2.    MV/m²
  3.    MV/m
  4.    Vm
 Discuss Question
Answer: Option C. -> MV/m
Answer: (c).MV/m
Question 212. If the Voltage increases, what happens to dielectric strength?
  1.    Increases
  2.    Decreases
  3.    Remains the same
  4.    Becomes zero
 Discuss Question
Answer: Option A. -> Increases
Answer: (a).Increases
Question 213. If the dielectric strength of a material is 4MV/m and its potential difference is 28MV, calculate the thickness of the material.
  1.    4m
  2.    7m
  3.    5m
  4.    11m
 Discuss Question
Answer: Option B. -> 7m
Answer: (b).7m
Question 214. The thickness of a material having dielectric strength 10MV/m is 5m, calculate the potential difference.
  1.    2MV
  2.    10MV
  3.    50MV
  4.    100MV
 Discuss Question
Answer: Option C. -> 50MV
Answer: (c).50MV
Question 215. If the thickness of the material increases, what happens to the dielectric strength?
  1.    Increases
  2.    Decreases
  3.    Remains the same
  4.    Becomes zero
 Discuss Question
Answer: Option B. -> Decreases
Answer: (b).Decreases
Question 216. Which medium has the highest dielectric strength?
  1.    Water
  2.    Mica
  3.    Air
  4.    Glass
 Discuss Question
Answer: Option C. -> Air
Answer: (c).Air
Question 217. Leakage in capacitors is primarily caused by _________
  1.    Transistors
  2.    Resistors
  3.    Inductors
  4.    DC motors
 Discuss Question
Answer: Option A. -> Transistors
Answer: (a).Transistors
Question 218. The simplest kind of capacitor is ________
  1.    Ceramic capacitor
  2.    Electrolyte capacitor
  3.    Tuning capacitor
  4.    Paper capacitor
 Discuss Question
Answer: Option D. -> Paper capacitor
Answer: (d).Paper capacitor
Question 219. The type of capacitors used in communication transmitters are?
  1.    Electrolyte capacitor
  2.    Variable capacitor
  3.    Air capacitor
  4.    Glass capacitor
 Discuss Question
Answer: Option B. -> Variable capacitor
Answer: (b).Variable capacitor
Question 220. ____________ capacitors usually have a colour code to find its value.
  1.    Electrolyte capacitor
  2.    Variable capacitor
  3.    Polyester capacitor
  4.    Glass capacitor
 Discuss Question
Answer: Option C. -> Polyester capacitor
Answer: (c).Polyester capacitor

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