Electricity Quiz

What is the unit of electric current?

• Volts (V)
• Amperes (A)
• Ohms (Ω)
• Coulombs (C)

Which of the following best describes conventional current?

• Flow of electrons
• Flow of protons
• Flow of positive charge
• Flow of negative charge

In the formula I = Q/t, what does 't' represent?

• Charge
• Current
• Time
• Voltage

What is the relationship between current and charge?

• Current is independent of charge
• Current is the rate of flow of charge
• Current increases with decreasing charge
• Current is equal to charge

How is current measured in a circuit?

• Using a voltmeter
• Using an ammeter
• Using a multimeter
• Using a resistor

What does potential difference measure?

• Energy per unit charge
• Charge per unit time
• Resistance in a circuit
• Power consumed

In the equation V = E/Q, what does 'E' stand for?

• Energy
• Electricity
• Electrons
• Emf

Which of the following statements about electrons is true?

• Electrons flow in the same direction as conventional current
• Electrons are positively charged
• Electrons are responsible for current in metals
• Electrons do not contribute to electric charge

What happens to the current in a series circuit if one component fails?

• Current increases
• Current decreases
• Current stops
• Current remains the same

What is the potential difference across a circuit component if 10 Joules of energy is used to move 2 Coulombs of charge?

• 5 V
• 10 V
• 20 V
• 2 V