Magnetic (B) Field in Solenoid (7, 3)

Equation:

B = ∝ 0 ⋅ ∝ r ⋅ I ⋅ n

Example:

Given: ∝r=10, n=50, I=1.25_A.

Solution: B=0.0785_T.

Magnetic (B) Field in Toroid (7, 4)

Equation:

B =

∝ 0

⋅ ∝ r ⋅ I ⋅ N

⋅

2

-------------------------------

2 ⋅ π -

ro---------------+ ri

Example:

Given: ∝r=10, N=50, ri=5_cm, ro=7_cm, I=10_A.

Solution: B=1.6667E–2_T.

Equation Reference 5-33