Quiz on Potential Difference and Resistance in Electricity

What is the unit of measurement for potential difference?

• Amperes
• Volts
• Ohms
• Joules

Which formula correctly represents potential difference?

• V = E × Q
• V = E / Q
• V = Q / E
• V = E + Q

What does 'E' represent in the potential difference formula?

• Electricity
• Energy
• Electrons
• Efficiency

How is potential difference related to current according to Ohm's Law?

• V = I / R
• V = I × R
• V = R / I
• V = I + R

Which instrument is used to measure potential difference?

• Ammeter
• Voltmeter
• Ohmmeter
• Wattmeter

How should a voltmeter be connected in a circuit?

• In series
• In parallel
• Both in series and parallel
• Neither in series nor parallel

What is the unit of measurement for resistance?

• Amperes
• Volts
• Ohms
• Watts

Which formula correctly represents resistance?

• R = V × I
• R = I / V
• R = V / I
• R = V + I

If the potential difference across a component increases, what happens to the current (assuming constant resistance)?

• Decreases
• Increases
• Remains the same
• Becomes zero

What happens to the resistance if the current through a component increases while the potential difference remains constant?

• Increases
• Decreases
• Remains the same
• Becomes infinite