In a battery, what is the direction of current flow within its internal structure?

• A. From Cathode to Anode
• B. From Anode to Cathode
• C. From Positive to Negative
• D. From Negative to Positive

Answer: (B)

In a battery, the direction of current flow within its internal structure is from the anode to the cathode. This is because, during the discharge process, the anode undergoes oxidation, releasing electrons that flow through the external circuit to the cathode, where reduction occurs.

While external current flow is typically considered to move from the positive terminal to the negative terminal (which corresponds to the conventional current direction), the internal flow of current within the battery itself is opposite to this. Therefore, the electrons move from the anode to the cathode, establishing current flow in that direction. This distinction is critical because it helps to understand the internal chemical reactions within the battery and how they relate to the overall operation of the device.