Capacitance increases with ____ .
A. Decrease in plate area
B. Increase in density of the material
C. Increase in distance between the plates
D. Decrease in distance between the plates
Series-Parallel Circuits
Capacitance increases with _____ .
A. Increase in density of the material
B. Increase in plate area
C. Decrease in plate area
D. Increase in distance between the plates
Capacitor preferred when there is high frequency in the circuits is _____.
A. Air capacitor
B. Glass capacitor
C. Mica capacitor
D. Electrolyte capacitor
A capacitor consists of ____ .
A. Two insulators
B. Two conductors
C. Two semiconductors
D. Two dielectrics
For very low frequencies, capacitor acts as:
A. Rectifier
B. Open circuit
C. Short circuit
D. Amplifier
For high frequencies, capacitor acts as _____ ?
A. Short circuit
B. Rectifier
C. Open circuit
D. Amplifier
A 4microF capacitor is charged to 120V, the charge in the capacitor would be ?
A. 30C
B. 30microC
C. 480C
D. 480microC
If 2V is supplied to a 3F capacitor, calculate the charge stored in the capacitor ?
A. 2C
B. 3C
C. 6C
D. 1.5C
What is the relation between current and voltage in a capacitor ?
A. I=CdV/dt
B. I=Ct
C. I=1/C*integral(Vdt)
D. I=1/CdV/dt
Two 4F capacitors are connected in series, calculate the voltage across each if the total voltage is 20V ?
A. 20V
B. 0V
C. 5V
D. 10V