15 question well explained

Dear Student
To design a solenoid we need to find current
Below are the given conditions
Here, B =100G =10⁻²T
I=15A, n =1000/m
Now As, B=μ₀nI

T o d e s i g n t h e s o l e n o i d l e t u s f i n d t h e p r o d u c t o d c u r r e n t a n d n u m b e r o f t u r n s n I = \frac{B}{μ_{o}} n I = \frac{10^{- 2}}{4 π \times 10^{- 7}} = 7954.54 \approx 8000 H e r e t h e p r o d u c t o f n I i s 8000 s o C u r r e n t c a n b e f i x e d a s I = 8 A a n d n u m b e r o f t u r n s n = 1000 / m O r C u r r e n t c a n b e f i x e d a s I = 10 A a n d n u m b e r o f t u r n s n = 800 / m A n y n e o f t h e d e s i g n c a n b e u s e d f o r s o l e n o i d .

Regards