Reference Guide
Equation Reference 5-33
Magnetic (B) Field in Solenoid (7, 3)
Equation:
Example:
Given:
µ
r=10, n=50, I=1.25_A.
Solution:
B=0.0785_T.
Magnetic (B) Field in Toroid (7, 4)
Equation:
Example:
Given:
µ
r=10, N=50, ri=5_cm, ro=7_cm, I=10_A.
Solution:
B=1.6667E–2_T.
B
µ
0
µ
r
I
n
⋅
⋅
⋅
=
B
µ
0
µ
r
I
N
⋅
⋅
⋅
2
π
⋅
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2
r
o
r
i
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
⋅
=