*Question T5A03:
What is the name for the flow of electrons in an electric circuit?*  

*Correct Answer is  D: Current*  

### AI Response: (may contain errors)  

The flow of electrons in an electric circuit is referred to as **Current**. 

### Explanation of the Correct Answer:
- **Current (D)**: Current is defined as the rate at which electric charge flows. It is measured in amperes (A) and represents the movement of electrons through a conductor. The formula for current can be expressed as:
  
  $$I = \frac{Q}{t}$$

  where:
  - $I$ = current in amperes (A)
  - $Q$ = charge in coulombs (C)
  - $t$ = time in seconds (s)

### Explanation of Incorrect Choices:
- **Voltage (A)**: Voltage is the electrical potential difference between two points in a circuit. It is the force that pushes the electrons through the circuit, measured in volts (V). It does not represent the flow of electrons itself.

- **Resistance (B)**: Resistance is a measure of how much a material opposes the flow of electric current. It is measured in ohms (Ω). While it affects how much current flows for a given voltage, it is not the flow itself.

- **Capacitance (C)**: Capacitance is the ability of a component to store an electrical charge. It is measured in farads (F). Like resistance, it influences how current behaves in a circuit but does not define the flow of electrons.

### Summary:
- The correct answer is **Current (D)** because it directly describes the flow of electrons in a circuit.
- Voltage, resistance, and capacitance are related concepts but do not define the flow of electrons.