Capacitance and Dielectrics Quiz

What is the SI unit of capacitance?

• Henry

• Ohm

• Farad

• Tesla

What is the formula for capacitance of a parallel-plate capacitor?

• C = Q^2/2C

• C = V/Q

• C = ε_o A/d

• C = Q/V

What is the effect of increasing the distance between the plates of a capacitor?

• Capacitance remains the same

• Capacitance decreases

• Charge decreases

• Capacitance increases

What is the purpose of a dielectric in a capacitor?

• To increase the charge

• To decrease the voltage

• To decrease the electric field

• To increase the capacitance

In a series connection of capacitors, what happens to the equivalent capacitance as more capacitors are added?

• Becomes zero

• Remains the same

• Increases

• Decreases

What is the formula for calculating the energy stored in a capacitor?

• U = C/V

• U = Q^3/2C

• U = CV^2/2

• U = Q/V

What happens to the magnitude of the charge in a parallel connection of capacitors?

• Charge becomes zero

• Charge remains the same

• Charge increases

• Charge decreases

What is the dielectric constant (k) measuring?

• Ability to resist current flow

• Ability to conduct electricity

• Ability to store magnetic energy

• Ability to store electrical energy

What is the symbol used to represent capacitance?

• C

• V

• R

• I

What is the effect of increasing the area of the capacitor plates?

• Capacitance decreases

• Charge decreases

• Capacitance increases

• Voltage decreases