Electrical Electrostatics MCQ Test - Set 02 - ObjectiveBooks

Electrical Electrostatics MCQ Test - Set 02

Practice Test: Question Set - 02


1. A mica capacitor and a ceramic capacitor both have the same physical dimensions. Which will have more value of capacitance?
    (A) Ceramic capacitor
    (B) Mica capacitor
    (C) Both will have identical value of capacitance
    (D) It depends on applied voltage

2. The unit of volume charge density is
    (A) Coulomb/meter
    (B) Coulomb2/meter
    (C) Coulomb/meter3
    (D) Coulomb/meter4

3. The total deficiency or excess of electrons in a body is known as
    (A) Current
    (B) Voltage
    (C) Potential gradient
    (D) Charge

4. In a cable capacitor, voltage gradient is maximum at the surface of the
    (A) Earth
    (B) Conduction
    (C) Sheath
    (D) Insulator

5. The capacitance between two plates increases with
    (A) Shorter plate area and higher applied voltage
    (B) Shorter plate area and shorter distance between them
    (C) Larger plate area, longer distance between plates and higher applied voltage
    (D) Larger plate area and shorter distance between plates

6. For a good 0.05 uF capacitor ohmmeter reading should
    (A) Show low resistance momentarily and back off to a very high resistance
    (B) Show high resistance momentarily and then a very low resistance
    (C) Go quickly to 50 ohm approximately and remain there
    (D) Not move at all

7. Dielectric strength of medium
    (A) Increases with rise in temperature
    (B) Increases with moisture content
    (C) Is same for all insulating materials
    (D) None of the above

8. Which of the following capacitor is preferred in case of single phase motor?
    (A) Mica capacitor
    (B) Paper capacitor
    (C) Electrolytic capacitor
    (D) Ceramic capacitor

9. The electric field at a point situated at a distance d from straight charged conductor is
    (A) Proportional to d
    (B) Inversely proportional to d
    (C) Inversely proportional to d2
    (D) None of the above

10. An electrolytic capacitor can be used for
    (A) D.C. only
    (B) A.C. only
    (C) Both D.C. as well as A.C.
    (D) None of these

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