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MCQs

Total Questions : 330 | Page 23 of 33 pages
Question 221. Capacitor preferred when there is high frequency in the circuits is _______
  1.    Electrolyte capacitor
  2.    Mica capacitor
  3.    Air capacitor
  4.    Glass capacitor
 Discuss Question
Answer: Option B. -> Mica capacitor
Answer: (b).Mica capacitor
Question 222. Which capacitors relatively costly?
  1.    Electrolyte capacitor
  2.    Mica capacitor
  3.    Air capacitor
  4.    Glass capacitor
 Discuss Question
Answer: Option B. -> Mica capacitor
Answer: (b).Mica capacitor
Question 223. ______________ capacitors have a high leakage voltage.
  1.    Electrolyte capacitor
  2.    Variable capacitor
  3.    Air capacitor
  4.    Polyester capacitor
 Discuss Question
Answer: Option D. -> Polyester capacitor
Answer: (d).Polyester capacitor
Question 224. Calculate the energy in the 4F capacitor.Calculate The Energy In The 4F Capacitor.
  1.    128kJ
  2.    1.28kJ
  3.    12.8kJ
  4.    1280J
 Discuss Question
Answer: Option C. -> 12.8kJ
Answer: (c).12.8kJ
Question 225. Calculate the energy stored in the combination of the capacitors.Calculate The Energy Stored In The Combination Of The Capaci...
  1.    192kJ
  2.    1.92kJ
  3.    19.2kJ
  4.    1920J
 Discuss Question
Answer: Option C. -> 19.2kJ
Answer: (c).19.2kJ
Question 226. Calculate the current in the capacitor having 2V supply voltage and 3F capacitance in 2seconds.Calculate The Current In The Capacitor Having 2V Supply Volt...
  1.    2A
  2.    5A
  3.    6A
  4.    3A
 Discuss Question
Answer: Option D. -> 3A
Answer: (d).3A
Question 227. If 2V is supplied to a 3F capacitor, calculate the charge stored in the capacitor.If 2V Is Supplied To A 3F Capacitor, Calculate The Charge St...
  1.    1.5C
  2.    6C
  3.    2C
  4.    3C
 Discuss Question
Answer: Option B. -> 6C
Answer: (b).6C
Question 228. What is the relation between current and voltage in a capacitor?What Is The Relation Between Current And Voltage In A Capaci...
  1.    I=1/C*integral(Vdt)
  2.    I=CdV/dt
  3.    I=1/CdV/dt
  4.    I=Ct
 Discuss Question
Answer: Option B. -> I=CdV/dt
Answer: (b).I=CdV/dt
Question 229. A 4microF capacitor is charged to 120V, the charge in the capacitor would be?
  1.    480C
  2.    480microC
  3.    30C
  4.    30microC
 Discuss Question
Answer: Option B. -> 480microC
Answer: (b).480microC
Question 230. For high frequencies, capacitor acts as _________
  1.    Open circuit
  2.    Short circuit
  3.    Amplifier
  4.    Rectifier
 Discuss Question
Answer: Option B. -> Short circuit
Answer: (b).Short circuit

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