1. The study of the behavior of the charges, when they are at rest is called
(A) Electricity
(B) Magnetism
(C) Thermal
(D) Electrostatics
2. The value of permittivity of free space is _______.
(A) 8.80 × 10⁻¹² C²/Nm²
(B) 8.85 × 10⁻¹² C²/Nm²
(C) 8.95 × 10⁻¹² C²/Nm²
(D) 9.0 × 10⁻¹² C²/Nm²
3. The lines of force contract _______
(A) None of above
(B) Vertically
(C) Both a and b
(D) Longitudinally
4. Electrolytic capacitors are also called _______ capacitors.
(A) Metal
(B) Ceramic
(C) Polarized
(D) Composite
5. Variable capacitors are frequently used in _______ circuits.
(A) Timing
(B) Radioactive
(C) Tuning
(D) Transformer
6. A simple parallel plate capacitor consists of _______ plates.
(A) Two
(B) Three
(C) Four
(D) Six
7. Capacitor uses a _______ material as separator.
(A) Dielectric
(B) Capacitance
(C) Inductor
(D) Charge
8. For use at higher frequency _______ capacitor is preferable.
(A) Electrolytic
(B) Polarized
(C) Ceramic
(D) Constant
9. With the increase in distance between capacitor plates, capacitance is ___.
(A) Decreased
(B) Increased
(C) Constant
(D) Variable
10. A capacitance of 0.01μF is large than _______
(A) 0.00001F
(B) 100,000pF
(C) 999F
(D) 1000pF
11. When the voltage across a capacitor is increased, the stored charge _______
(A) None of above
(B) Decreases
(C) Remain constant
(D) Increases
12. A 1μF, 2.2μF and 0.05μF capacitors are connected in series. The total capacitance is less than _______.
(A) 2.2μF
(B) 0.05μF
(C) 0.001μF
(D) 0.002μF
13. Four 0.02μF capacitors are in parallel. Total capacitance is _______.
(A) 0.08μF
(B) 0.02μF
(C) 0.04μF
(D) 0.06μF
14. Which of the following capacitors can have the highest capacitance value?
(A) Mica
(B) Electrolytic
(C) Paper
(D) All equal
15. A capacitor that stores 0.5C at 10 volts has a capacitance of ___ Farads.
(A) 0.05
(B) 20
(C) 5
(D) 10
16. A capacitance of 1000pF is smaller than _______.
(A) Both a & b
(B) 0.00000001F
(C) 0.01μF
(D) None of above
17. The voltage rating of a capacitor is increased by _______.
(A) Decreasing the plate separation
(B) Both a & c
(C) Increasing the plate separation
(D) None of above
18. Capacitance of a parallel plate capacitor increases with _______.
(A) Applied voltage
(B) Smaller plate area
(C) Thinner dielectric
(D) Thicker dielectric
19. The capacitance of a capacitor is not influenced by _______
(A) Plate thickness
(B) Plate area
(C) Plate separation
(D) All of above
20. Coulomb’s law is _______.
(A) F = k Q₁Q₂ / d⁴
(B) F = k Q₁Q₂ / d
(C) F = k Q₁Q₂ / d³
(D) F = k Q₁Q₂ / d²
21. 1 Mil = _______ inch
(A) 0.01
(B) 0.02
(C) 0.001
(D) 0.002
22. The relation C = _______.
(A) Q / V
(B) Q / t
(C) Q / L
(D) Q / A
23. Which of the following is not a dielectric?
(A) Alloy
(B) Mica
(C) Air
(D) Paper
24. In capacitor color coding violet has the value ____
(A) 7
(B) 6
(C) 5
(D) 9
25. No color in capacitor has _______ % tolerance.
(A) 5
(B) 10
(C) 15
(D) 20