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Electrostatics Test - 122

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Electrostatics Test - 122
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  • Question 1
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    The energy required to charge a capacitor of 5µF by connecting a d. c. source of 20 kV is
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  • Question 2
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    The capacitance of a parallel plate capacitor is 12 µF. If the distance between the plates is doubled and area is halved, then new capacitance will be
    Solution

  • Question 3
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    A capacitor of capacitance 611F is charged upto 100 volt. The energy stored in the capacitor is
    Solution

  • Question 4
    4 / -1
    A parallel plate capacitor of capacity C0 is charged to a potential V0
    (i) The energy stored in the capacitor when the battery is disconnected and the separation is doubled E1
    (ii) The energy stored in the capacitor when the charging battery is kept connected and the separation between the capacitor plates is doubled is E2. Then E1/E2 value is
    Solution

  • Question 5
    4 / -1
    As in figure shown, if a capacitor C is charged by connecting it with resistance R, then energy is givenby the battery will be

  • Question 6
    4 / -1
    When a lamp is connected in series with capacitor, then
  • Question 7
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    If a dielectric substance is introduced between the plates of a charged air-gap capacitor. The energy of the capacitor will
    Solution

  • Question 8
    4 / -1
    Which is known as capacitive time constant?
  • Question 9
    4 / -1
    The net charge on capacitor is
  • Question 10
    4 / -1
    A capacitor of capacitance C is charged to a potential V. The flux of the electric field through a closed surface enclosing the capacitor is
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