1. The study of the behavior of charges when they are at rest is called
(A) electricity
(B) magnetism
(C) electrostatics
(D) thermal
2. The value of permittivity of free space is ______
(A) 8.80 × 10⁻¹² C²/Nm²
(B) 9.0 × 10⁻¹² C²/Nm²
(C) 8.95 × 10⁻¹² C²/Nm²
(D) 8.85 × 10⁻¹² C²/Nm²
3. The lines of force contract ______
(A) longitudinally
(B) vertically
(C) both a and b
(D) none of above
4. Electrolytic capacitors are also called ______ capacitors
(A) metal
(B) polarized
(C) composite
(D) ceramic
5. Variable capacitors are frequently used in ______ circuits
(A) timing
(B) tuning
(C) radioactive
(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) inductor
(B) dielectric
(C) capacitance
(D) charge
8. For use at higher frequency ______ capacitor is preferable
(A) electrolytic
(B) polarized
(C) ceramic
(D) constant
9. With increase in distance between capacitor plates, capacitance is ______
(A) constant
(B) increased
(C) decreased
(D) variable
10. A capacitance of 0.01μF is larger than ______
(A) 0.00001F
(B) 100,000pF
(C) 999F
(D) 1000pF
11. When voltage across a capacitor is increased, stored charge
(A) increases
(B) decreases
(C) remain constant
(D) none of above
12. Series capacitors total capacitance is less than ______
(A) 0.05μF
(B) 2.2μF
(C) 0.001μF
(D) 0.002μF
13. Four 0.02μF capacitors in parallel total capacitance is ______
(A) 0.02μF
(B) 0.08μF
(C) 0.04μF
(D) 0.06μF
14. Which capacitor can have highest capacitance value?
(A) mica
(B) paper
(C) electrolytic
(D) all equal
15. Charge = 0.5C, Voltage = 10V, capacitance = ______ F
(A) 5
(B) 20
(C) 0.05
(D) 10
16. 1000pF is smaller than ______
(A) both a & b
(B) 0.00000001F
(C) 0.01μF
(D) none of above
17. Voltage rating of capacitor is increased by ______
(A) increasing plate separation
(B) both a & c
(C) decreasing plate separation
(D) none of above
18. Capacitance of parallel plate capacitor increases with ______
(A) applied voltage
(B) smaller plate area
(C) thicker dielectric
(D) thinner dielectric
19. Capacitance is not influenced by ______
(A) plate separation
(B) plate area
(C) plate thickness
(D) all of above
20. Coulomb’s law is ______
(A) F = k Q1Q2 / d
(B) F = k Q1Q2 / d²
(C) F = k Q1Q2 / d³
(D) F = k Q1Q2 / d⁴