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MCQs

Total Questions : 441 | Page 39 of 45 pages
Question 381. . If s than normal, it can be concluded at the capacitor is
  1.    short-circuited
  2.    open circuited
  3.    alright
  4.    leaky
 Discuss Question
Answer: Option C. -> alright
Question 382. . mica capacitor and a ceramic acitor both have the same physical ensions. Which will have more value apacitance?
  1.    Ceramic capacitor Mica capacitora
  2.    Both will have identical value of capacitance
  3.    it depends on applied voltage
 Discuss Question
Answer: Option B. -> Both will have identical value of capacitance
Question 383. . The electrostatic force between two charges of one coulomb each and placed at a distance of 0.5 m11 be
  1.    36 x 106
  2.    36 x 107 N
  3.    36 x 108N
  4.    36 x 109 N
 Discuss Question
Answer: Option D. -> 36 x 109 N
Question 384. . The surface integral of the normal component of the electric displacement D over any closed surface equals the charge enclosed by the surface.The above statement is associated with
  1.    Gauss's law
  2.    Kirchhoff's law
  3.    Faraday's law
  4.    Lenz's law
 Discuss Question
Answer: Option A. -> Gauss's law
Question 385. . The potential of the sphere is given by
  1.    uniform
  2.    non-uniform
  3.    zero
  4.    any of the above
 Discuss Question
Answer: Option B. -> non-uniform
Question 386. . The area of plates of the parallel plate capacitor, to obtain capacity of 0.3 x 10 ttF if they are separated by a distance of 10 min and a dielectric between them of permittivity = 2.5, will be
  1.    0.1 m2
  2.    0.125 m2
  3.    0.135m2
  4.    0.235 m2
 Discuss Question
Answer: Option C. -> 0.135m2
Question 387. . The dielectric constant (relative permittty) of glass is given by
  1.    0.1 to 0.4
  2.    0.5 to 1.0
  3.    2.0 to 4.0
  4.    5 to 100
 Discuss Question
Answer: Option D. -> 5 to 100
Question 388. . If three capacitors C1, C2 and C3 of values of 1 tif, 2 g and 4 ItF respectively are in series and connected across a potential of 230 V, then charge on each capacitor is would move if free to do so
  1.    positive
  2.    negative
  3.    both of the above
  4.    none of the above
 Discuss Question
Answer: Option C. -> both of the above
Question 389. . Dielectric strength of mica is
  1.    10 to 20 kV/mm
  2.    30 to 50 kV/mm
  3.    50 to 200 kV/mm
  4.    300 to 500 kV/mm
 Discuss Question
Answer: Option C. -> 50 to 200 kV/mm
Question 390. . The inverse of capacitance is called
  1.    reluctance
  2.    conductance
  3.    susceptance
  4.    elastance
 Discuss Question
Answer: Option D. -> elastance

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