Electrical Circuits and Measurements Quiz

What is the unit of electric potential difference?

• Volts

• Watts

• Amperes

• Ohms

Which law states that the current through a conductor is directly proportional to the potential difference across it?

• Faraday's Law

• Ohm's Law

• Kirchhoff's Voltage Law

• Ampere's Law

What is the formula for calculating power in an electrical circuit?

• P = V / I

• P = R / I

• P = V * I

• P = I * R

What type of current remains constant over time?

• Static Current

• Alternating Current (AC)

• Pulsating Current

• Direct Current (DC)

What is the unit of resistance?

• Ohms

• Volts

• Amperes

• Coulombs

What does a capacitor do in an electrical circuit?

• Stores energy

• Generates power

• Measures current

• Converts AC to DC

In a series circuit, how does the total resistance change as more resistors are added?

• It increases

• It remains the same

• It fluctuates

• It decreases

What is the relationship between current and voltage in a parallel circuit?

• Same voltage across all components

• Same current through all components

• Voltage is divided among components

• Current is divided among components

What is the formula for calculating energy in an electrical circuit?

• E = P * t

• E = V * I

• E = V / I

• E = I * R

What does Kirchhoff's Current Law (KCL) state?

• The sum of currents entering a node is equal to the sum of currents leaving that node

• The sum of voltages in a closed loop is zero

• The total resistance in a circuit is constant

• Power is conserved in a circuit