Which of the following figure correctly depicts the Lenz’s law. The arrows show the movement of the labelled pole of a bar magnet into a closed circular loop and the arrows on the circle show the direction of the induced current

Options

A.
B.
C.
D.

Explanation

To determine which figure correctly depicts Lenz's law, we need to understand the principle behind it. Lenz's law states that the direction of induced current in a closed loop will be such that it opposes the change in magnetic flux through the loop.

### Step-by-Step Solution:

1. **Identify the Movement of the Magnet**:
- We have a bar magnet with a labeled pole (either North or South) moving towards a closed circular loop.

2. **Determine the Induced Current Direction**:
- According to Lenz's law, if a North pole of a magnet is brought closer to the loop, the induced current will flow in a direction that creates a magnetic field opposing the North pole. This means the loop will act like a North pole to repel the incoming North pole of the magnet.

3. **Analyze Each Figure**:
- **Figure A**: If the North pole is moving towards the loop, the induced current should be in the counterclockwise direction (to create a North pole in the loop). This matches with Figure A.
- **Figure B**: If the North pole is moving towards the loop, the induced current should be counterclockwise, but Figure B shows it as clockwise. This is incorrect.
- **Figure C**: If the South pole is moving towards the loop, the induced current should be in the clockwise direction (to create a South pole in the loop). However, Figure C shows it as counterclockwise, which is incorrect.
- **Figure D**: If the South pole is moving towards the loop, the induced current should be clockwise, which matches with Figure D.

4. **Conclusion**:
- The correct figures that depict Lenz's law are **Figure A** (for the North pole) and **Figure D** (for the South pole).

### Final Answer:
The figures that correctly depict Lenz's law are **Figure A** and **Figure D**.