Which of the following is NOT the unit of magnetic induction?

Options

A. gauses
B. weber/ `m^(2)`
C. maxwell
D. tesla

Answer

To determine which of the following is NOT the unit of magnetic induction, we need to analyze each option provided:

1. **Gauss**: This is a unit of magnetic induction (magnetic flux density) in the CGS (centimeter-gram-second) system. It is defined as one maxwell per square centimeter.

2. **Weber per meter square**: This is also a unit of magnetic induction. The weber (Wb) is the SI unit of magnetic flux, and when divided by area (in square meters), it gives us the magnetic induction (or magnetic flux density).

3. **Maxwell**: This is a unit of magnetic flux, not magnetic induction. One maxwell is equal to one weber, but it does not represent magnetic induction itself.

4. **Tesla**: This is the SI unit of magnetic induction. One tesla is defined as one weber per square meter.

Now, we can summarize the findings:

- Gauss: Unit of magnetic induction
- Weber per meter square: Unit of magnetic induction
- Maxwell: NOT a unit of magnetic induction (it is a unit of magnetic flux)
- Tesla: Unit of magnetic induction

Thus, the answer to the question is **Maxwell**.

### Step-by-Step Solution:
1. Identify the units listed in the options: Gauss, Weber per meter square, Maxwell, and Tesla.
2. Recall the definition of magnetic induction: It is the magnetic flux passing per unit area.
3. Analyze each unit:
- Gauss: Yes, it is a unit of magnetic induction.
- Weber per meter square: Yes, it is a unit of magnetic induction.
- Maxwell: No, it is a unit of magnetic flux, not magnetic induction.
- Tesla: Yes, it is a unit of magnetic induction.
4. Conclude that Maxwell is NOT a unit of magnetic induction.