Basic Electrical Concepts Quiz

What is voltage?

• The flow of electric charge

• The electrical potential difference

• The opposition to current flow

• The measure of energy consumed

What is current measured in?

• Volts

• Ohms

• Amperes

• Watts

What does Ohm's Law state?

• V = IR

• I = VR

• R = VI

• V = I + R

What type of current is used in most household outlets?

• Direct Current (DC)

• Alternating Current (AC)

• Both AC and DC

• None of the above

Which of the following is a good conductor?

• Rubber

• Wood

• Copper

• Glass

What is the purpose of a fuse?

• To increase voltage

• To reduce current

• To protect against excessive current

• To store energy

What does an insulator do?

• Increases current flow

• Reduces voltage

• Prevents current flow

• Measures resistance

What happens during a short circuit?

• Current flow is decreased

• Current takes an unintended path

• Voltage increases significantly

• Resistance increases

What unit is resistance measured in?

• Volts

• Amperes

• Ohms

• Watts

What is the primary function of a circuit breaker?

• To store electricity

• To regulate voltage

• To interrupt the flow of current

• To measure resistance