In a battery, an electrode is defined as

In a battery, an electrode is defined as

• A. One of them in a battery
• B. Two of them in a battery
• C. Three of them in a battery
• D. Four of them in a battery

Answer: (B)

An electrode is one of the two conducting parts that connect the chemical reactions inside a battery to the outside world. In a typical battery, there are two electrodes: the anode and the cathode. They sit in the electrolyte, and electrons flow from the electrode where oxidation occurs to the electrode where reduction occurs through the external circuit, while ions move in the electrolyte to balance charge. Because a battery relies on two separate conductors to complete the circuit, an electrode is defined as one of those two.

An electrode is one of the two conducting parts that connect the chemical reactions inside a battery to the outside world. In a typical battery, there are two electrodes: the anode and the cathode. They sit in the electrolyte, and electrons flow from the electrode where oxidation occurs to the electrode where reduction occurs through the external circuit, while ions move in the electrolyte to balance charge. Because a battery relies on two separate conductors to complete the circuit, an electrode is defined as one of those two.