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
Three capacitors each of the capacity C are given. The resultant capacity 2/3 C can be obtained by using them_____________?
A. All in series
B. All in parallel
C. Two in parallel and third in series with this combination
D. Two in series and third in parallel across this combination
The sparking between two electrical contacts can be reduced by inserting a___________?
A. Capacitor in parallel with contacts
B. Capacitor in series with each contact
C. Resistance in line
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
Which of the following capacitors has relatively shorter shelf life____________?
A. Mica capacitor
B. Electrolytic capacitor
C. Ceramic capacitor
D. Paper capacitor
Which of the following statement is true __________?
A. The current in the discharging capacitor grows linearly
B. The current in the dicharging capacitor grows exponentially
C. The current in the discharging capacitor decays exponentially
D. The current in the discharging capacitor decreases constantly