The relative permeability is represented by `mu_(r)` and susceptibility is denoted by `chi` for a magnetic substance then for a paramagnetic substance.

Answer

To solve the question regarding the relationship between relative permeability (μ_r) and susceptibility (χ) for a paramagnetic substance, we can follow these steps:

### Step 1: Understanding Definitions
- **Relative Permeability (μ_r)**: It is the ratio of the permeability of a material to the permeability of free space (vacuum). It indicates how much a material can be magnetized in response to an applied magnetic field.
- **Magnetic Susceptibility (χ)**: It is a dimensionless quantity that indicates the degree of magnetization of a material in response to an applied magnetic field.

### Step 2: Relationship Between Susceptibility and Relative Permeability
For paramagnetic materials, the relationship between susceptibility (χ) and relative permeability (μ_r) is given by the equation:
\[ \chi = μ_r - 1 \]

### Step 3: Analyzing the Conditions for Paramagnetic Substances
- For paramagnetic substances, the susceptibility (χ) is positive, which means:
\[ χ > 0 \]
From the equation \( χ = μ_r - 1 \), if χ is greater than zero, we can deduce:
\[ μ_r - 1 > 0 \]
This implies:
\[ μ_r > 1 \]

### Step 4: Conclusion
Thus, for a paramagnetic substance:
- The susceptibility (χ) is greater than zero (χ > 0).
- The relative permeability (μ_r) is greater than one (μ_r > 1).

### Summary
For a paramagnetic substance:
- **Susceptibility (χ)**: \( χ > 0 \)
- **Relative Permeability (μ_r)**: \( μ_r > 1 \)