Electrical Engineering Mcqs

Which of the following statements is correct ___________?
  • (A)  Air capacitors have a black band to indicate the outside foil
  • (B)  Electrolytic capacitor must be connected in the correct polarity
  • (C)  Ceramic capacitors must be connected in the correct polarity
  • (D)  Mica capacitors are available in capacitance value of 1 to 10 pF
Capacitance increases with_____________?
  • (A)  increase in plate area and decrease in distance between the plates
  • (B)  increase in plate area and distance between the plates
  • (C)  decrease in plate area and value of applied voltage
  • (D)  reduction in plate area and distance between the plates
In a capacitive circuit___________?
  • (A)  a steady value of applied voltage causes discharge
  • (B)  an increase in applied voltage makes a capacitor charge
  • (C)  decrease in applied voltage makes a capacitor charge
  • (D)  none of the above
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