Chapter 20 - Potential Difference and Capacitance

What is the SI Unit of Potential Difference?

• Volt (V)

• Watt (W)

• Ampere (A)

• Ohm (Ω)

Define the volt.

• One volt is one joule per coulomb

• One volt is one coulomb per joule

• One volt is one ampere per ohm

• One volt is one watt per ampere

What is the formula relating charge (Q), potential difference (V), and work done (W)?

• W = QV

• W = Q/V

• W = V/Q

• W = Q^2/V

What is an Electric Current?

• A flow of electric resistance

• A flow of electric potential

• A flow of electric energy

• A flow of electric charge

What is the potential at a point?

• The potential energy at a point

• The potential charge at a point

• The potential difference between a point and the Earth

• The potential difference between two points in space

What is Capacitance?

• The difference between the charge and potential on the conductor

• The product of the charge and potential on the conductor

• The ratio of the potential to the charge on the conductor

• The ratio of the charge on the conductor to its potential

What is the SI Unit of Capacitance?

• Joule (J)

• Tesla (T)

• Henry (H)

• Farad (F)

What is a Parallel Plate Capacitor?

• Two identical series conducting plates separated by an insulator

• Two identical parallel conducting plates separated by a conductor

• Two identical parallel conducting plates separated by an insulator

• Two identical series conducting plates separated by a conductor

What happens when a charged capacitor is connected to a bulb?

• The bulb will flash as the capacitor discharges

• The bulb will not light up

• The bulb will explode

• The bulb will continuously glow

What is the relationship between charge and potential on a conductor?

• Inversely proportional

• Directly proportional

• Not related

• Exponentially proportional