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10 A

1 k

2 W

400mm

200mm

BT

superfc

iedaTerra

BE

BT

BE

m

BT

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B I

B= 04

dL r

r2

0 = 4 10

7 T

m/A

1 T = 1 N/A m

Bx = 0IR

2(R2 +x2)3/2

R R BH

BH

BH=0NI

R

4

5

3/2

BH BT

B =BT+

BH

H

N I

BH

BT BTB

BH

BH = 0

BH BT BH

B= BT+ BH

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BT

L1 L2

BH

BH I

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+

1

1

2

2

A

R

L1

L2

+

1

1

2

2

A

R

L1

L2

+

1

1

2

2

A

R

L1

L2

L1 L2

B= BT+ BH I

100mA

BH

BH

I

BT

BH BH BH =a +b a b BT

BT

18,972

T

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I BH I

BH

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