Potential Difference | Current | Resist

What does a simple circuit diagram represent?

• A closed loop with a power source and a path for electrons to flow.

  
  

• An open circuit without any power source.

  
  

• A series of disconnected components.

  
  

• A visual representation of alternating current.

  
  

What are the essential components required to form a basic electrical circuit?

• A power source and a switch

• A power source and a wire

• A power source, a wire, and something for electrons to flow through

• A power source, a wire, and a filament lamp

Which unit is used to measure the flow of electrons in an electrical circuit?

• Volts

• Ohms

• Amperes

• Watts

What does potential difference represent in an electrical circuit?

• The opposition to the flow of electrons

• The measure of the flow of electrons

• The force driving the flow of electrons

• The amount of energy consumed by the circuit

In conventional current flow, what is the direction of current relative to the terminals of a power source?

• From the negative terminal to the positive terminal

• From the positive terminal to the negative terminal

• Alternating between positive and negative terminals

• It depends on the type of power source