A closely wound solenoid of \(800\) turns and area of cross-section \(2.5 \times10^{-4}~\text{m}^2\) carries a current of \(3.0~\text{A}\). If the solenoid acts like a bar magnet, then what is its associated magnetic moment?
1. \(0.6~\text{J/T}\) 
2. \(0.07~\text{J/T}\) 
3. \(0.3~\text{J/T}\) 
4. \(0.8~\text{J/T}\)