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MCQs 1: A gang condenser is a____________?

polarised capacitor variable capacitor ceramic capacitor none of the above
Answer Explanation

MCQs 2: The unit of capacitance is__________?

henry ohm farad farad/m
Answer Explanation

MCQs 3: Air capacitors are generally available in the range_________?

10 to 400 pF 1 to 20 pF 100 to 900 pF 20 to 100 pF
Answer Explanation

MCQs 4: A capacitor charged to 200 V has 2000 (iC of charge. The value of capacitance will be_____________?

10 F 10 uF 100 nF 1000 uF
Answer Explanation

MCQs 5: Capacitance increases with_____________?

increase in plate area and decrease in distance between the plates increase in plate area and distance between the plates decrease in plate area and value of applied voltage reduction in plate area and distance between the plates
Answer Explanation

MCQs 6: In a capacitive circuit___________?

a steady value of applied voltage causes discharge an increase in applied voltage makes a capacitor charge decrease in applied voltage makes a capacitor charge none of the above
Answer Explanation

MCQs 7: The dissipation factor of a good dielectric is of the order of____________?

0.0002 0.002 0.02 0.2
Answer Explanation

MCQs 8: Three capacitors each of the capacity C are given. The resultant capacity 2/3 C can be obtained by using them_____________?

all in series all in parallel two in parallel and third in series with this combination two in series and third in parallel across this combination
Answer Explanation

MCQs 9: The sparking between two electrical contacts can be reduced by inserting a___________?

capacitor in parallel with contacts capacitor in series with each contact resistance in line none of the above
Answer Explanation

MCQs 10: Which of the following statements is incorrect _________________?

The leakage resistance of ceramic capacitors is generally high The stored energy in a capacitor decreases with reduction in value of capacitance The stored energy in a capacitor increases with applied voltage A wire cable has distributed capacitance between the conductors
Answer Explanation

MCQs 11: In the case of a lossy capacitor, its series equivalent resistance value will be_______________?

small very small large zero
Answer Explanation

MCQs 12: Which of the following capacitors has relatively shorter shelf life____________?

Mica capacitor Electrolytic capacitor Ceramic capacitor Paper capacitor
Answer Explanation

MCQs 13: Which of the following expression is correct for electric field strength___________?

E = D/E E = D2/t E = jtD E= nD2
Answer Explanation

MCQs 14: Which of the following statement is true __________?

The current in the discharging capacitor grows linearly The current in the dicharging capacitor grows exponentially The current in the discharging capacitor decays exponentially The current in the discharging capacitor decreases constantly
Answer Explanation

MCQs 15: Which of the following materials has the highest value of dielectric constant___________?

Glass Vacuum Ceramics Oil
Answer Explanation

MCQs 16: For which of the following parameter variation, the capacitance of the capacitor remains unaffected ____________?

Distance between plates Area of the plates Nature of dielectric Thickness of the plates
Answer Explanation

MCQs 17: Which of the following capacitors will have the least variation ____________?

Paper capacitor Ceramic capacitor Silver plated mica capacitor None of the above
Answer Explanation

MCQs 18: In a capacitor the electric charge is stored in____________?

metal plates dielectric both (A) and (B) none of the above
Answer Explanation

MCQs 19: “The total electric flux through any closed surface surrounding charges is equal to the amount oflcharge enclosed”. The above statement is associated with____________?

Coulomb’s square law Gauss’s law Maxwell’s first law Maxwell’s second law
Answer Explanation

MCQs 20: Two plates of a parallel plate capacitor after being charged from a constant voltage source are separated apart by means of insulated handles, then the____________?

Voltage across the plates increases voltage across the plates decreases charge on the capacitor decreases charge on the capacitor increases
Answer Explanation

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