Electrostatics MCQ Knowledge Test - Set 10 - ObjectiveBooks

Electrostatics MCQ Knowledge Test - Set 10

Practice Test: Question Set - 10

1. To prevent the generation of static charges on rubber or flat leather
    (A) Surface is moistened
    (B) Conductive dressing is done
    (C) Oil compound dressing is done
    (D) Talcum powder is sprayed on the surface

2. Is that property of a capacitor which delays any change of voltage across it.
    (A) Inductance
    (B) Capacitance
    (C) Potential gradient
    (D) None of the above

3. Capacitors can be used only for D.C.
    (A) Air
    (B) Paper
    (C) Mica
    (D) Electrolytic

4. If a 6 uF capacitor is charged to 200 V, the charge in coulombs will be
    (A) 800 uC
    (B) 900 uC
    (C) 1200 uC
    (D) 1600 uC

5. Which of the following statements is incorrect?
    (A) The leakage resistance of ceramic capacitors is generally high
    (B) The stored energy in a capacitor decreases with reduction in value of capacitance
    (C) The stored energy in a capacitor increases with applied voltage
    (D) A wire cable has distributed capacitance between the conductors

6. The units of capacitance are
    (A) Volts/coulomb
    (B) Coulombs/volt
    (C) Ohms
    (D) Henry/Wb

7. The lines of force due to charged particles are
    (A) Always straight
    (B) Always curved
    (C) Sometimes curved
    (D) None of the above

8. A paper capacitor is usually available in the form of
    (A) Tubes
    (B) Rolled foil
    (C) Disc
    (D) Meshed plates

9. ________field is associated with the capacitor.
    (A) Electric
    (B) Magnetic
    (C) Both (A) and (B)
    (D) None of the above

10. The presence of an uncharged conductor near a charged one increases the
    (A) Charge of the charged conductor
    (B) Capacity of the charged conductor
    (C) Potential of the charged conductor
    (D) All of the above

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