3 EMF i hoʻokomo ʻia e ka induction electromagnetic - Nā pilikia a me nā hoʻonā
1. Ua pani ʻia kahi ʻōwili me kahi ʻōwili ʻē aʻe nona nā loops 2 mau manawa o nā loops mua a ʻo ka wikiwiki o ka loli o ka flux magnetic he mau. E hoʻoholo i ka lakio o ka emf i hoʻokomo mua ʻia a me ka hope.
ʻIke ʻia:
Nā ʻōuli mua (N) = 1
Nā ʻōuli hope loa (N) = 2
ʻO ka wikiwiki o ka loli o ke kahe magnetic mua (ΔØ B / Δt) = ka wikiwiki o ka loli o ke kahe magnetic hope loa (ΔØ B / Δt)
Makemake ʻia: ʻO ka lakio o ka emf i hoʻokomo mua ʻia a me ka emf hope loa
Lōlā:
ʻO ke kaulike o ke kānāwai hoʻokomo o Faraday:
E = -N (ΔØ B / Δt)
E = EMF i hoʻokomo ʻia, N = helu o nā loops, ΔØ B / Δt = ka wikiwiki o ka loli o ka flux magnetic
ʻO ka lakio o ka emf i hoʻokomo mua ʻia a me ka emf hope loa:
E mua: E hope loa
-N (ΔØ B / Δt) : -N (ΔØ B / Δt)
1: 2
2. I ke kūlana mua (1), ua hoʻololi ʻia ke kahe magnetic e 5 Wb i loko o 2 kekona ma kahi coil me 20 mau loop. I ke kūlana hope loa (2), ua loli ke kahe like i loko o 8 kekona. E hoʻoholo i ka lakio o ka emf i hoʻokomo mua ʻia a me ka emf i hoʻokomo hope ʻia.
ʻIke ʻia:
ʻO ka wikiwiki o ka loli o ke kahe magnetic mua (ΔØ B / Δt) = 5/2
ʻO ka wikiwiki o ka loli o ka flux magnetic hope loa (ΔØ B / Δt) = 5/8
Helu o nā apo (N) = 20
Makemake ʻia: ʻO ka lakio o ka emf i hoʻokomo mua ʻia a me ka emf i hoʻokomo hope ʻia
Lōlā:
E mua: E hope loa
-N (ΔØ B / Δt) : -N (ΔØ B / Δt)
20 (5/2) : 20 (5/8)
5/2: 5/8
1/1: 1/4
4: 1
3. ʻO ke kahe magnetic o ke wili mua he 200 mau loops e loli ana ma 0.06 Wb i loko o 0.4 kekona. ʻO ke kahe magnetic o ke wili hope loa he 0.08 Wb i loko o 0.2 kekona. Inā hoʻololi ʻia kekahi mau loops o ke wili hope me ka hapalua o nā loops o ke wili mua, e hoʻoholo i ka lakio o ka emf i hoʻokomo ʻia o ka loop mua a me ka loop hope loa.
ʻIke ʻia:
ʻO ka wikiwiki o ka loli o ke kahe magnetic mua (ΔØ B / Δt) = 0.06 / 0.4
Helu o nā loop mua (N) = 200
ʻO ka wikiwiki o ka loli o ka flux magnetic hope loa (ΔØ B / Δt) = 0.08 / 0.2
Helu o nā loop hope loa (N) = 100
Makemake ʻia: ʻO ka lakio o ka emf i hoʻokomo mua ʻia a me ka emf i hoʻokomo hope ʻia
Lōlā:
E mua: E hope loa
-N (ΔØ B / Δt) : -N (ΔØ B / Δt)
200 (0.06/0.4) : 100 (0.08/0.2)
2 (0.15) : 1 (0.4)
0.3: 0.4
3: 4
