Conduction current flows

Options

A. only through resistance
B. through wires and resistance
C. only through capacitor
D. through wires, resistance and capacitor

Answer

### Step-by-Step Solution

1. **Understanding Conduction Current**:
Conduction current refers to the flow of electric charge through a conductor, typically a wire. This current is due to the movement of free electrons in the material.

2. **Capacitor Charging Process**:
When a capacitor is connected to a battery, initially, there is no charge on the plates of the capacitor. As the battery is connected, electrons are pulled from one plate of the capacitor and deposited onto the other plate. This creates a positive charge on one plate and a negative charge on the other.

3. **Charge Accumulation**:
As more electrons move, the charge on the plates increases. For example, if one plate loses 1 electron, it becomes positively charged (+1), and the other plate gains that electron, becoming negatively charged (-1). This process continues, leading to an increasing charge on both plates.

4. **Electric Field Generation**:
As the charge on the plates increases, an electric field is established between the plates of the capacitor. The changing electric field is crucial in understanding the behavior of current in this scenario.

5. **Displacement Current**:
When the electric field between the plates changes, it generates a magnetic field. This phenomenon is described by the concept of displacement current, which is not a conduction current but rather a current that accounts for the changing electric field in a capacitor.

6. **Conduction Current Flow**:
Conduction current flows through conductive materials such as wires and resistors. It is important to note that conduction current can only flow through materials that have resistance, as the movement of electrons collides with atoms in the material, causing resistance.

7. **Conclusion**:
Therefore, conduction current flows through conductive materials like wires and resistors, while displacement current flows through the electric field in a capacitor.