Understanding Electrical Circuits Quiz

Which of the following is a component used to store electrical energy in an electric field?

• Resistor

• Capacitor

• Diode

• Transistor

Identify the component that allows current to flow in only one direction.

• Resistor

• Capacitor

• Diode

• Transistor

In a series circuit, how does the current flow through the components?

• The current splits between components

• The current flows through one component at a time

• The current flows through all components equally

• The current does not flow

What is the main function of a transistor in a circuit?

• To store energy

• To amplify or switch electronic signals

• To resist the flow of current

• To convert AC to DC

Which of the following describes a parallel circuit?

• Components are connected end-to-end

• Components are connected in separate branches

• Current flows through one path only

• Voltage is different across each component

What happens to the total resistance in a series circuit when more resistors are added?

• It decreases

• It remains the same

• It increases

• It becomes zero

Which component is used to control the flow of current in a circuit?

• Resistor

• Capacitor

• Diode

• Transistor

In a parallel circuit, how does the voltage across each component compare?

• It is the same across each component

• It is different across each component

• It is zero across each component

• It doubles across each component

What is the role of a diode in a circuit?

• To store electrical energy

• To allow current to flow in both directions

• To allow current to flow in one direction only

• To amplify signals

How does a transistor function as a switch in a circuit?

• By storing energy

• By opening or closing a circuit

• By converting AC to DC

• By increasing resistance