Capacitor Basics

What is capacitance?

• The ability to generate electrical energy from an electric field

• Ability to store electrical energy in an electric field

• The ability to resist the flow of electrical energy

• The ability to convert electrical energy into mechanical energy

What is the SI unit of capacitance?

• ampere

• ohm

• farad

• watt

What is the formula for calculating the capacitance of a capacitor?

• C = Q/V

• C = V/Q

• C = V - Q

• C = Q * V

What is a dielectric material in a capacitor?

• A material that reduces the capacitance of the capacitor.

• An insulating material placed between the plates of the capacitor to increase its capacitance.

• A material that absorbs and dissipates electric energy as heat.

• A conducting material placed between the plates of the capacitor to increase its capacitance.

How does the dielectric material affect the capacitance of a capacitor?

• It increases the capacitance

• It has no effect on the capacitance

• It decreases the capacitance

• It changes the resistance of the capacitor

What is a parallel plate capacitor?

• A type of capacitor with a single conductive plate

• A type of capacitor with three parallel conductive plates

• A type of capacitor with a cylindrical shape

• A type of capacitor with two parallel conductive plates separated by a dielectric material.

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

• C = εA/d

• C = Q/V

• C = Q^2/2Aε

• C = kQ/d

How does the area of the plates affect the capacitance of a parallel plate capacitor?

• As the area decreases, the capacitance also decreases.

• As the area increases, the capacitance decreases.

• As the area increases, the capacitance also increases.

• The area of the plates has no effect on the capacitance.

How does the distance between the plates affect the capacitance of a parallel plate capacitor?

• The distance between the plates has no effect on the capacitance

• The capacitance increases as the distance between the plates increases

• The capacitance decreases as the distance between the plates decreases

• The distance between the plates affects the capacitance by inversely proportional relationship.

What is the role of dielectric material in a parallel plate capacitor?

• Decrease the capacitance by increasing the electric field between the plates.

• Increase the capacitance by reducing the electric field between the plates.

• Causes the plates to repel each other, reducing the overall capacitance.

• Has no effect on the capacitance of the capacitor.