C&G 2365 202-03 Ohm's law

What is the uniform flow of electrons through a conductor referred to as?

• Voltage

• Resistance

• Electric current

• Power

What is the unit of electric current?

• Volt (V)

• Ohm (Ω)

• Ampere (A)

• Watt (W)

In formulae, what symbol is used for electric current?

• V

• R

• I

• P

What does EMF provide in an electrical circuit?

• A difference in potential between two open terminals

• A constant current flow

• A resistance to electron flow

• A magnetic field

What is the unit of EMF?

• Ampere (A)

• Ohm (Ω)

• Volt (V)

• Watt (W)

What symbol is used for EMF in formulae?

• E

• I

• R

• V

What is the opposition to the flow of current in an electric circuit called?

• Voltage

• Resistance

• Current

• Power

What is the unit of resistance?

• Ampere (A)

• Volt (V)

• Ohm (Ω)

• Watt (W)

What symbol is used to represent resistance in formulae?

• V

• I

• R

• P

What does Ohm's Law state about the relationship between current, voltage, and resistance in a circuit?

• Current is inversely proportional to voltage and directly proportional to resistance.

• Current is directly proportional to voltage and inversely proportional to resistance.

• Current is directly proportional to both voltage and resistance.

• Current is inversely proportional to both voltage and resistance.