Jawabanmu

2014-03-25T22:50:29+07:00
Penye:
Dik:
a =2 cm =2.10⁻²
I = 30 A
μ₀ = 4 π x 10⁻⁷ Wb/A.m

Dit: B?
Jawab:
B = μ₀.i = (4π.10⁻⁷)30
      2πa    2π(2.10⁻²)

B = 30x10⁻⁵
   = 3x10⁻⁴wb/m²



2 4 2