A-solenoid-is-40cm-long-has-a-cross-sectional-area-of-8-0cm-2-and-is-wound-with-309-turns-of-wire-that-carries-a-current-of-1-2A-The-relative-permeability-of-the-iron-core-is-600-Compute-the-B-for-t

Question Number 63124 by necx1 last updated on 29/Jun/19

A s o l e n o i d i s 40 c m l o n g, h a s a c r o s s

s e c t i o n a l a r e a o f 8.0 {c m}^{2} a n d i s w o u n d

w i t h 309 t u r n s o f w i r e t h a t c a r r i e s a

c u r r e n t o f 1.2 A . T h e r e l a t i v e

p e r m e a b i l i t y o f t h e i r o n c o r e i s 600 .

C o m p u t e t h e B f o r t h e i n t e r i o r p o i n t

a n d t h e f l u x t h r o u g h t h e s o l e n o i d .

Commented by necx1 last updated on 29/Jun/19

p l e a s e h e l p

Commented by Hope last updated on 29/Jun/19

Commented by Hope last updated on 29/Jun/19

Commented by Hope last updated on 29/Jun/19

Commented by Hope last updated on 29/Jun/19

Answered by peter frank last updated on 30/Jun/19

f l u x = A (i n m e t e r)) \times B \dots \dots . (i)

B = μ_{m} n I

n = \frac{N}{L (m e t e r)} \dots \dots . . (i i)

μ_{r} (r e l a t i v e p e r m e a b i l i t y) = \frac{μ_{m}}{μ_{o}} \dots \dots . (i i i)

μ_{m} = μ_{r} \times μ_{o} (a b s o l u t e p)