Question

the value of magnetic field at
Determine
point o
1
R - 120 mm
I s-oA
B.​

Answer 1

Answer:

 

Explanation:   Magnetic induction due to the arc segment at O,

B  

arc  

=  

4π

μ  

0  

R

i  

(2π−2φ)

and magnetic induction due to the line segment at O,

B  

line    =  4π μ  0  

Rcosφ

i​  

[2sinφ]

So, total magnetic induction at O,

B  

0    =B  

arc​  

+B  

line    =  2π μ  0    

R

i​  

[π−φ+tanφ]=28μT