Magnets are not used in

Options

A. ATM cards
B. Video cassettes
C. Campass needle
D. None of these

Explanation

To solve the question "Magnets are not used in," we need to analyze the options provided and determine which one does not utilize magnets.

### Step-by-Step Solution:

1. **Identify the Options**: The question likely provides several options, such as ATM cards, video cassettes, compass, and needle.

2. **Understand the Function of Each Option**:
- **ATM Cards**: These cards have a magnetic strip that stores data. This strip is made of iron-based magnetic particles that can be read by a magnetic reader.
- **Video Cassettes**: Video cassettes also use magnetic tape to store video and audio information. The tape is coated with magnetic material that allows it to record and playback data.
- **Compass**: A compass uses a magnetic needle that aligns itself with the Earth's magnetic field, pointing towards the magnetic north.
- **Needle**: This term might refer to a sewing needle, which does not have any magnetic properties or uses.

3. **Determine Which Option Does Not Use Magnets**:
- From the analysis, we see that ATM cards, video cassettes, and compasses all utilize magnets in some form. However, a standard sewing needle does not use magnets.

4. **Conclusion**: Therefore, the correct answer to the question "Magnets are not used in" is the needle (assuming it refers to a sewing needle).

### Final Answer:
Magnets are not used in **needles**.

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