A. varying voltage produces the charging and dicharging currents
B. of high peak value
C. charging current can flow
D. discharge current can flow
Related Mcqs:
- What will happen to an insulating medium if voltage more than the breakdown voltage is applied on it__________ ?
A. It will become magnetic
B. It will melt
C. It will get punctured or cracked
D. Its molecular structure will get changed - 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 - Voltage applied across a ceramic dielectric produces an electrolytic field 100 times greater than air. What will be the value of dielectric constant ________?
A. 50
B. 100
C. 150
D. 200 - The time constant of an R-C circuit is defined as the time during which capacitor charging voltage actually rises to _________ percent of its value
A. 37, initial
B. 62, initial
C. 62, final
D. 37, final - The time constant and R-C circuit may also be defined as the time during which the charging current falls to ________ percent of its initial maximum value
A. 37
B. 42
C. 63
D. 73 - A potential of 400 V is applied to a capacitor, the plates of which are 4 mm apart. The strength of electric field is___________?
A. 100 kV/m
B. 10 kV/m
C. 5 kV/m
D. 2 kV/m - When 4 volts e.m.f. is applied across a 1 farad capacitor, it will store energy of_____________?
A. 2 joules
B. 4 joules
C. 6 joules
D. 8 joules - A capacitance is a circuit component that opposes the change in circuit__________?
A. Current
B. Voltage
C. impedance
D. None of the above - A capacitance of 100 fiF is connected in series with a resistance of 8000 £2. The time constant of the circuit is______________?
A. 0.2 s
B. 0.4 s
C. 0.6 s
D. 0.8 s - A capacitor in a circuit became hot and ultimately exploded due to wrong connections, which type of capacitor it could be ?
A. Paper capacitor
B. Ceramic capacitor
C. Electrolytic capacitor
D. Any-of the above
