Electricity Quiz

What is the unit of electric current?

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

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

• Charge
• Current
• Time
• Voltage

What type of current flows in metals?

• Ions
• Protons
• Electrons
• Neutrons

What does conventional current represent?

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

How is current measured in a circuit?

• Using a voltmeter
• Using an ammeter
• Using a ohmmeter
• Using a multimeter

What is the formula for potential difference?

• V = I × R
• V = Q/t
• V = E/Q
• V = R/I

What happens to current when potential difference increases, according to Ohm's Law?

• It decreases
• It remains the same
• It increases
• It becomes zero

What is resistance measured in?

• Volts (V)
• Amperes (A)
• Ohms (Ω)
• Joules (J)

In an ohmic conductor, how does current relate to voltage?

• Inversely proportional
• Directly proportional
• Independent
• Exponential

What happens to the resistance of a thermistor as temperature increases?

• It increases
• It decreases
• It remains constant
• It fluctuates