Electric Potential Energy Quiz

What is the unit of charge?

• Joule

• Coulomb

• Ampere

• Second

What is the direction of current flow in a typical wire?

• In the direction of positive charges

• In the direction of the magnetic field

• In the direction of negative charges

• In the direction of the electric field

What is the EMF in a circuit?

• The work done in the circuit

• The force that causes current to flow

• The resistance in the circuit

• The difference in electric potentials between two parts of a circuit

What is the relation between current and resistance according to Ohm's Law?

• V = I/R

• I = V/R

• R = V/I

• V = IR

When resistors are put in series, how do their resistances add up?

• They add up directly

• They add up inversely

• They add up exponentially

• They add up logarithmically

What happens to the resistance of a resistor when it gets hot?

• It decreases

• It increases

• It remains the same

• It becomes zero

What is conserved in a circuit when a current splits into two?

• Current

• Power

• Resistance

• Voltage

What happens to the total potential drop across resistors in parallel?

• It decreases

• It becomes zero

• It increases

• It remains the same

What is the unit of power?

• Joule

• Coulomb

• Watt

• Ampere

What is Kirchoff's Law related to in a closed circuit?

• Conservation of momentum

• Conservation of power

• Conservation of energy

• Conservation of charge