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 'Q' represent?

• Charge
• Current
• Time
• Voltage

What type of current flows in metals?

• Protons
• Electrons
• Neutrons
• Ions

What is the conventional direction of current flow?

• From positive to negative
• From negative to positive
• Randomly
• Only in a closed circuit

How is current measured in a circuit?

• With a voltmeter
• With an ammeter
• With a multimeter
• With a resistor

What does potential difference measure?

• Current per unit charge
• Work done per unit charge
• Resistance per unit charge
• Energy per unit charge

According to Ohm's Law, what is the relationship between voltage, current, and resistance?

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

What is the unit of resistance?

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

In a series circuit, how does the total resistance compare to individual resistances?

• It is less
• It is equal
• It is greater
• It is unpredictable

What happens to the current in a parallel circuit?

• It increases
• It decreases
• It is shared among branches
• It remains constant