Page 36 - 電機與電子群電工機械含實習升學跨越講義
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電工機械含實習
精選範例 3 同步練習 3
4 24 ᅻʘٜݴཥዚdમ͜ᕐᄴఊʱۃආت 4 33 ᅻʘٜݴཥዚdમ͜ᕐᄴᕐʱۃආت
ᔎdۆᇞਸ਼ື൷ Y eۃື൷ Y ၾܝື൷ Y b ᔎdۆᇞਸ਼ື൷ Y eۃື൷ Y ၾܝື൷ Y b
C
f
C
f
ʱйމОkc ʱйމОkc
解 答
(1) ᕐᄴᔎٙཥዚdᇞਸ਼ଡ଼ᅰഃᅻᅰf (1) ᕐᄴᔎٙཥዚdᇞਸ਼ଡ଼ᅰഃᅻᅰf
N ! m 24 + 1 N ! m 33 + 2
(2) ᇞਸ਼ື൷ Y = S P = 4 (2) ᇞਸ਼ື൷ Y = S P = 4
C
C
( ) ( ) ( ) ( )
2 2 2 2
ccccc = 12ᅻf ccccc = 17ᅻf
N 24 N 33
(3) ܝື൷ Y = P s = 4 = 6ᅻf (3) ܝື൷ Y = P s = 4 = 8ᅻf
b
b
(4) ۃື൷ Y = Y - Y = 12 - 6 = 6ᅻf (4) ۃື൷ Y = Y - Y = 17 - 8 = 9ᅻf
f
c
c
f
b
b
精選範例 4 同步練習 4
ٜݴཥዚϞ 4 dཥᅹᔎଡ଼Ϟ 36 ࡈᇞਸ਼d ٜݴཥዚϞ 4 dཥᅹᔎଡ଼Ϟ 48 ࡈᇞਸ਼d
߰મ 100% ٙѩᏀஹટdცૢѩᏀᇞk ߰મ 50% ٙѩᏀஹટdცૢѩᏀᇞk
解 答
N S 36 N S 48
P × ѩᏀϵʱˢ % = 4 × 100% = 18 ૢ P × ѩᏀϵʱˢ % = 4 × 50% =12 ૢ
( ) ( ) ( ) ( )
2 2 2 2
精選範例 5 同步練習 5
4 29 ᅻʘٜݴཥዚdમ͜ᕐᄴᕐʱۃආت 6 30 ᅻʘٜݴཥዚdમ͜ᕐᄴఊʱܝৗت
ᔎdۆცࡈൈணᇞਸ਼k ᔎdۆცࡈൈணᇞਸ਼k
解 答
N ! m 29 + 2 N ! m 30 - 1
Y = S P = 4 = 15nn1 Y = S P = 6 = 9nn2
C
C
( ) ( ) ( ) ( )
2 2 2 2
ც 1 ࡈൈணᇞਸ਼f ც 2 ࡈൈணᇞਸ਼f
26
