Consider a thin permanently magnetized toroid of mean radius a having a small air gap Al between its pole faces. If it has a permanent magnetization M of constant magnitude in circumferential direction. Find B and H both in air gap and within material. (2πα- ΔΙ) Μ· ΔΙ (a) Bs and H Σπα Σπα μΜ(2πα) (b) B = and H = Σπα μΜ (2πα-Δ1) (c) B = 2πα (d) B = ΜΜ(2πα-Δί) 2πα Answer - Μ· ΔΙ Σπα and H = and H= Μ· ΔΙ Σπα Μ· ΔΙ Στα
Consider a thin permanently magnetized toroid of mean radius a having a small air gap Al between its pole faces. If it has a permanent magnetization M of constant magnitude in circumferential direction. Find B and H both in air gap and within material. (2πα- ΔΙ) Μ· ΔΙ (a) Bs and H Σπα Σπα μΜ(2πα) (b) B = and H = Σπα μΜ (2πα-Δ1) (c) B = 2πα (d) B = ΜΜ(2πα-Δί) 2πα Answer - Μ· ΔΙ Σπα and H = and H= Μ· ΔΙ Σπα Μ· ΔΙ Στα
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Consider a thin permanently magnetized toroid of mean radius a having a small air gap Al
between its pole faces. If it has a permanent magnetization M of constant magnitude in
circumferential direction. Find B and H both in air gap and within material.
(2πα-Δ1)
(a) B=
and H=
Μ· ΔΙ
Σπα
Σπα
ΜΜ(2πα)
(b) B=
and H=
Σπα
μΜ (2πα-Δ1)
(c) B=
2πα
ΜΜ(2πα-Δί)
(d) B=
Σπα
O A
OB
OC
O
Answer
Μ· ΔΙ
Σπα
and H=
and H=
Μ· ΔΙ
Σπα
M. Al
Σπα
DELL
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