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MCQs

Total Questions : 330 | Page 20 of 33 pages
Question 191. A circuit has a resistance of 2 ohm connected in series with a capacitance of 6F. Calculate the charging time constant.
  1.    3
  2.    1
  3.    12
  4.    8
 Discuss Question
Answer: Option C. -> 12
Answer: (c).12
Question 192. The charging time constant of a circuit consisting of a capacitor is the time taken for the charge in the capacitor to become __________ % of the initial charge.
  1.    33
  2.    63
  3.    37
  4.    36
 Discuss Question
Answer: Option B. -> 63
Answer: (b).63
Question 193. What is the voltage across the 2F capacitor?What Is The Voltage Across The 2F Capacitor?
  1.    240V
  2.    200V
  3.    220V
  4.    120V
 Discuss Question
Answer: Option D. -> 120V
Answer: (d).120V
Question 194. If the switch is closed at t=0, what is the current in the circuit?If The Switch Is Closed At T=0, What Is The Current In The C...
  1.    0A
  2.    10A
  3.    20A
  4.    Infinity
 Discuss Question
Answer: Option B. -> 10A
Answer: (b).10A
Question 195. What is the voltage across the 4F capacitor?What Is The Voltage Across The 4F Capacitor?
  1.    120V
  2.    60V
  3.    100V
  4.    220V
 Discuss Question
Answer: Option B. -> 60V
Answer: (b).60V
Question 196. Calculate the voltage across the capacitor at t=0.Calculate The Voltage Across The Capacitor At T=0.
  1.    0V
  2.    10V
  3.    20V
  4.    Infinity
 Discuss Question
Answer: Option A. -> 0V
Answer: (a).0V
Question 197. Calculate the voltage across the 6F capacitor.Calculate The Voltage Across The 6F Capacitor.
  1.    120V
  2.    60V
  3.    40V
  4.    220V
 Discuss Question
Answer: Option C. -> 40V
Answer: (c).40V
Question 198. While charging, what happens to the voltage in the capacitive circuit?
  1.    Decreases linearly
  2.    Increases linearly
  3.    Decreases exponentially
  4.    Increases exponentially
 Discuss Question
Answer: Option D. -> Increases exponentially
Answer: (d).Increases exponentially
Question 199. An 8microF capacitor is connected in series with a 0.5 megaohm resistor. The DC voltage supply is 200V. Calculate the time constant.
  1.    1s
  2.    2s
  3.    3s
  4.    4s
 Discuss Question
Answer: Option D. -> 4s
Answer: (d).4s
Question 200. An 8microF capacitor is connected in series with a 0.5 megaohm resistor. The DC voltage supply is 200V. Calculate the initial charging current.
  1.    100 microA
  2.    500 microA
  3.    400 microA
  4.    1000microA
 Discuss Question
Answer: Option C. -> 400 microA
Answer: (c).400 microA

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