Electricity Basics Quiz

What is electric current?

• The resistance to the flow of charge

• The amount of charge flowing through a conductor per unit time

• The energy provided to a charge

• The potential difference across two points

What is the unit of electric current?

• Volt

• Ohm

• Ampere

• Joule

What is voltage?

• The flow of electric charge

• The resistance to the flow of electric current

• The energy per unit charge provided to move the charge through a circuit

• The amount of charge stored in a battery

What is the unit of voltage?

• Ampere

• Volt

• Ohm

• Coulomb

What does resistance measure?

• The voltage across a circuit

• The current through a circuit

• The opposition to the flow of electric current

• The amount of electric charge

What is the unit of resistance?

• Volt

• Ampere

• Ohm

• Coulomb

In a series circuit, how does the current flow?

• The current is different through each component

• The current is the same through all components

• There is no current flow

• The current flows directly from the power source to the ground

In a parallel circuit, how does the voltage across each branch compare?

• The voltage is different across each branch

• The voltage is the same across all branches

• There is no voltage across the branches

• The voltage is half of the source voltage across each branch

What happens to the total resistance in a series circuit when more resistors are added?

• It decreases

• It stays the same

• It increases

• It becomes zero

What happens to the total resistance in a parallel circuit when more resistors are added?

• It decreases

• It stays the same

• It increases

• It becomes zero