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1.켱 ˾ƾ .
Ͽ ΰϸ а Ȱ մϴ. . ϰ ƴ (ͳ ̵ַ )̰ų 뷮(ܵ, ) а մϴ. ܵ Ͽ ߰ ϸ и
帣 ° ư ʽϴ.(, 90 ߳ COS 90 = 0 Ǿ 0 ) ̷ ߳ ҺǴ ȿ̶ մϴ. 뷮 Բ ߿ϱ ˻.
Ѹ ȿ ° ȿ ϸ ˴ϴ.
(ȿ)^2+(ȿ)^2 = ǻ Ǵµ
= ȿ / ǻ Ǵ .
⼭ ϶ ǻ = ȿ Ǿ 1 .
1 ȿ ٰ Ҽ .
2.
3 ϶
P = 3 x E x I x COS
P
COS = -------------
3 x E x I
Ŀ ϸ ˴ϴ.
P : (W) E : (V) I : (A) 3 : 1.732
¼ġ 100 ϸ ˴ϴ.
ܻ 3 ˴ϴ.
()̶ ΰ?.
ϴ
1) а ȸο 帣 ˸ ٷ ֽϴ k1 յ ȸ COS k1. ˷ Ƿν Ͽ
2) ǻ° ȿ ˸ , Ŀ ǻ ͱ ũͷ ϸ ȿ ° ( ·谡 ƴ) ̿Ͽ .
3) ϸ ٷ . 밳 谡 ġǾ . COS 迡
*ι Ͽ Ÿ 1 Ƿ
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