Capacitance

Q. In a capacitor, if the plate area is increased while keeping the separation constant, what happens to the capacitance?
  • A. It increases
  • B. It decreases
  • C. It remains the same
  • D. It becomes zero
Q. In a capacitor, what does the dielectric constant represent?
  • A. The ability to store charge
  • B. The ability to resist electric field
  • C. The ability to increase capacitance
  • D. The ability to conduct electricity
Q. In a capacitor, what is the relationship between charge (Q), capacitance (C), and voltage (V)?
  • A. Q = C + V
  • B. Q = C * V
  • C. Q = V / C
  • D. Q = C - V
Q. In a circuit, a capacitor is charged and then discharged through a resistor. What is the time constant of the circuit?
  • A. RC
  • B. C/R
  • C. R/C
  • D. 1/RC
Q. In a circuit, if a capacitor is fully charged, what is the voltage across it?
  • A. Zero
  • B. Equal to the source voltage
  • C. Half of the source voltage
  • D. Double the source voltage
Q. In a circuit, two capacitors of capacitance 2μF and 3μF are connected in parallel. What is the total capacitance?
  • A. 5μF
  • B. 6μF
  • C. 1.2μF
  • D. 0.6μF
Q. In a circuit, two capacitors of capacitance 3μF and 6μF are connected in parallel. What is the total capacitance?
  • A. 9μF
  • B. 2μF
  • C. 18μF
  • D. 1μF
Q. In a circuit, two capacitors of capacitance 4μF and 6μF are connected in parallel. What is the total capacitance?
  • A. 10μF
  • B. 24μF
  • C. 2.4μF
  • D. 0.4μF
Q. In a parallel combination of capacitors, how is the total capacitance calculated?
  • A. C_eq = C1 + C2 + C3
  • B. 1/C_eq = 1/C1 + 1/C2 + 1/C3
  • C. C_eq = 1/(C1 + C2 + C3)
  • D. C_eq = C1 * C2 * C3
Q. In a parallel plate capacitor, if the area of the plates is doubled while keeping the separation constant, what happens to the capacitance?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. Two capacitors, C1 = 2μF and C2 = 3μF, are connected in series. What is the equivalent capacitance?
  • A. 1.2μF
  • B. 5μF
  • C. 6μF
  • D. 0.6μF
Q. Two capacitors, C1 and C2, are connected in series. What is the equivalent capacitance?
  • A. C1 + C2
  • B. 1 / (1/C1 + 1/C2)
  • C. C1 * C2 / (C1 + C2)
  • D. C1 - C2
Q. What happens to the capacitance of a capacitor if the dielectric constant is doubled?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. What happens to the energy stored in a capacitor if the voltage across it is doubled?
  • A. It doubles
  • B. It quadruples
  • C. It remains the same
  • D. It halves
Q. What happens to the potential difference across a capacitor when it is fully charged?
  • A. It becomes zero
  • B. It becomes maximum
  • C. It becomes minimum
  • D. It fluctuates
Q. What happens to the voltage across a capacitor when it is fully charged?
  • A. It becomes zero
  • B. It equals the supply voltage
  • C. It becomes negative
  • D. It fluctuates
Q. What is the capacitance of a parallel plate capacitor with area A and separation d?
  • A. ε₀ * A / d
  • B. A / (ε₀ * d)
  • C. d / (ε₀ * A)
  • D. ε₀ * d / A
Q. What is the capacitance of a parallel plate capacitor with plate area A and separation d?
  • A. ε₀A/d
  • B. d/ε₀A
  • C. A/ε₀d
  • D. ε₀d/A
Q. What is the effect of increasing the plate area of a capacitor on its capacitance?
  • A. Capacitance increases
  • B. Capacitance decreases
  • C. Capacitance remains the same
  • D. Capacitance becomes zero
Q. What is the effect of increasing the plate area of a parallel plate capacitor?
  • A. Capacitance decreases
  • B. Capacitance increases
  • C. Capacitance remains the same
  • D. Capacitance becomes zero
Q. What is the effect of inserting a dielectric material between the plates of a capacitor?
  • A. Increases capacitance
  • B. Decreases capacitance
  • C. No effect on capacitance
  • D. Changes the voltage across the plates
Q. What is the effect of temperature on the capacitance of a capacitor?
  • A. Increases capacitance
  • B. Decreases capacitance
  • C. No effect
  • D. Depends on the dielectric
Q. What is the energy stored in a capacitor of capacitance C charged to a voltage V?
  • A. 1/2 CV
  • B. CV
  • C. 1/2 C/V
  • D. C/V
Q. What is the energy stored in a capacitor with capacitance C charged to a voltage V?
  • A. 1/2 CV²
  • B. CV
  • C. 1/2 V²/C
  • D. C²V
Q. What is the energy stored in a capacitor with capacitance C charged to voltage V?
  • A. 1/2 CV
  • B. CV
  • C. 1/2 C/V
  • D. C/V
Q. What is the unit of capacitance?
  • A. Farad
  • B. Coulomb
  • C. Volt
  • D. Ohm
Showing 31 to 56 of 56 (2 Pages)
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely