Understanding Electricity: A Quiz

What is the unit of electric current?

• Volt

• Ampere

• Ohm

• Watt

Which of the following components is used to measure voltage in a circuit?

• Ammeter

• Voltmeter

• Resistor

• Battery

In a series circuit, if one component fails, what happens to the rest of the circuit?

• The rest of the circuit continues to work

• The rest of the circuit stops working

• The voltage increases

• The current increases

Which of the following is true for a parallel circuit?

• The current is the same through all components

• The voltage is the same across all components

• The resistance is the same across all components

• The power is the same across all components

What is the unit of resistance?

• Volt

• Ampere

• Ohm

• Watt

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

• It increases

• It decreases

• It remains the same

• It doubles

Which of the following is an example of static electricity?

• A light bulb glowing

• A battery powering a remote

• A balloon sticking to a wall after being rubbed on hair

• A fan spinning

What is the main difference between series and parallel circuits?

• Series circuits have more components

• Parallel circuits have more components

• Series circuits have a single path for current

• Parallel circuits have a single path for current

What is the effect of increasing the voltage in a circuit while keeping the resistance constant?

• The current decreases

• The current increases

• The resistance increases

• The resistance decreases

Which of the following materials is a good conductor of electricity?

• Rubber

• Glass

• Copper

• Wood