Resistor

1. ªÔé¹Ê‹Ç¹ÍÔàÅ礷Ã͹ԡʏªÔé¹Ê‹Ç¹ÍÔàÅ礷Ã͹ԡʏ
µÑǵŒÒ¹·Ò¹µÑǵŒÒ¹·Ò¹
((ResistorResistor))

2. µÑǵŒÒ¹·Ò¹ (Resistor)
¤ÇÒÁµŒÒ¹·Ò¹ ËÁÒ¶֧ á経ҹ·Ò¹¨Ò¡Çѵ¶Øµ‹Ò§æ «Ö觷íÒ˹ŒÒ·Õ赌ҹ¡ÒÃäËŢͧ
¡ÃÐáÊä¿¿‡ÒãËŒ¼‹Ò¹ä»ä´ŒÁÒ¡ËÃ×͹ŒÍ ¤ÇÒÁµŒÒ¹·Ò¹¹Õé Áռŵ‹Í¡Ò÷íÒ§Ò¹¢Í§ÍØ»¡Ã³ à¤Ã×èͧÁ×Í
à¤Ã×èͧ㪌áÅÐÃкº¡Ò÷íÒ§Ò¹¢Í§Ç§¨Ãä¿¿‡ÒáÅÐÍÔàÅç¡·Ã͹ԡʏ ª‹ÇÂãËŒÃкº¡Ò÷íÒ§Ò¹ÁÕ¤ÇÒÁ
¶Ù¡µŒÍ§ÊÁºÙóµÒÁµŒÍ§¡Òà Çѵ¶Øµ‹Ò§ª¹Ô´¡Ñ¹ÁÕ¤ÇÒÁµŒÒ¹·Ò¹à¡Ô´¢Öé¹áµ¡µ‹Ò§¡Ñ¹ Çѵ¶Ø·ÕèÁÕ¤ÇÒÁ
µŒÒ¹·Ò¹µèíÒ àÃÕ¡NjҵÑǹíÒ Ê‹Ç¹Çѵ¶Ø·ÕèÁÕ¤ÇÒÁµŒÒ¹·Ò¹ÊÙ§ àÃÕ¡Njҩ¹Ç¹ ¤‹Ò¢Í§¤ÇÒÁµŒÒ¹·Ò¹¨ÐÁÕ
˹‹ÇÂ㹡ÒÃÇѴ໚¹âÍˏÁ ÍÒ¨à¢Õ¹᷹´ŒÇµÑÇâÍàÁ¡ŒÒ (  )
µÑǵŒÒ¹·Ò¹ ໚¹ÍØ»¡Ã³ÍÔàÅç¡·Ã͹ԡʏ ·Õè·íÒ˹ŒÒ·Õè¨íÒ¡Ñ´»ÃÔÁÒ³¡ÃÐáÊä¿¿‡Òã¹Ç§¨Ã
ËÃ×Íã¹Ê‹Ç¹¢Í§Ç§¨ÃáÅСÒõ‹ÍµÑǵŒÒ¹·Ò¹à¢ŒÒã¹Ç§¨ÃäÁ‹µŒÍ§¤íÒ¹Ö§¶Ö§¢ÑéÇËÃ×Í»ÅÒ¢ͧµÑǵŒÒ¹·Ò¹
¡Å‹ÒǤ×Í àÁ×è͵‹Í»ÅÒÂ˹Öè§à¢ŒÒ¡Ñº¢ÑéÇźáÅÐÍÕ¡»ÅÒÂ˹Öè§à¢ŒÒ¡Ñº¢ÑéǺǡ¢Í§áºµàµÍÃÕèáÅŒÇǧ¨Ã·íÒ§Ò¹
ä´ŒµÒÁ»¡µÔ ᵋàÁ×èÍÊÅѺ»ÅÒ¢ͧµÑǵŒÒ¹·Ò¹Ç§¨Ã¡çÂѧ¤§·íҧҹ䴌µÒÁ»¡µÔઋ¹à´ÔÁ
â´Â·ÑèÇ仵ÑǵŒÒ¹·Ò¹áº‹§à»š¹ 2 »ÃÐàÀ·¤×͵ÑǵŒÒ¹·Ò¹ª¹Ô´¤‹Ò¤§·Õè (Fixed
resistor) áÅеÑǵŒÒ¹·Ò¹ª¹Ô´á»Ã¤‹Òä´Œ (Variable resistor)

4. ¤íÒ¶ÒÁ
1. ¤ÇÒÁµŒÒ¹·Ò¹ ËÁÒ¶֧ÍÐäÃ
2. µÑǵŒÒ¹·Ò¹·íÒ˹ŒÒ·ÕèÍ‹ҧäÃ
3. ¡Òõ‹ÍµÑǵŒÒ¹·Ò¹ã¹Ç§¨Ã ¶ŒÒÊÅѺ¢Ò¢Í§µÑǵŒÒ¹·Ò¹¨ÐÁÕ
¼Åµ‹Í¤‹Ò¡ÃÐáÊä¿¿‡Òã¹Ç§¨ÃËÃ×ÍäÁ‹à¾ÃÒÐà˵Øã´

5. µÑǵŒÒ¹·Ò¹ª¹Ô´¤‹Ò¤§·Õè (Fixed resistor)
໚¹µÑǵŒÒ¹·Ò¹·ÕèÁÕ¤‹Ò¤§·Õèṋ¹Í¹¤‹Òã´¤‹Ò˹Öè§ â´Â·ÑèÇ仨ÐÁÕÅѡɳÐ໚¹
ÃÙ»·Ã§¡Ãк͡·íÒ´ŒÇ¼§¤ÒϺ͹ÍѴṋ¹ ´ŒÒ¹¢ŒÒ§¢Í§µÑǵŒÒ¹·Ò¹¨ÐÁÕᶺÊÕµ‹Ò§ æ
ºÍ¡¤‹Ò¢Í§¤ÇÒÁµŒÒ¹·Ò¹à©¾ÒТͧµÑǵŒÒ¹·Ò¹¹Ñé¹äÇŒ 4 ᶺ â´Âᶺ·Õè 1 ¨Ð
ºÍ¡àÅ¢µÑÇáá ᶺ·Õè 2 ¨ÐºÍ¡µÑÇ·Õè 2 ᶺ·Õè 3 ¨ÐºÍ¡àŢ¡¡íÒÅѧ·Õ赌ͧ¹íÒä»
¤Ù³¡ÑºàÅ¢ÊͧµÑÇáá ʋǹᶺ·Õè 4 ¨Ð໚¹µÑÇàÅ¢·ÕèºÍ¡¤ÇÒÁ¤ÅÒ´à¤Å×è͹¢Í§¤‹Ò
¤ÇÒÁµŒÒ¹·Ò¹·Õè䴌͋ҹ¨Ò¡·Ñé§ 3 ᶺááâ´Â
¨ÐÁÕ¡Òú͡໚¹ÃŒÍÂÅÐ «Ö觨ÐÁÕ¤‹Ò·ÕèºÍ¡à»š¹ª‹Ç§
¢Í§¤ÇÒÁµŒÒ¹·Ò¹¹Ñè¹àͧ ÅѡɳТͧµÑǵŒÒ¹·Ò¹
áÅСÒÃãËŒ¤ÇÒÁËÁÒ¢ͧÊÕᵋÅÐÊÕ ´Ñ§ÃÙ»

6. ¤íÒ¶ÒÁ
1. µÑǵŒÒ¹·Ò¹ª¹Ô´¤‹Ò¤§·Õè ÁÕÅѡɳÐÍ‹ҧäÃ
2. µÑǵŒÒ¹·Ò¹ª¹Ô´¤‹Ò¤§·Õè ÁÕÊÑ­Åѡɳà»š¹Í‹ҧäÃ
3. ¡ÒÃÍ‹Ò¹¤‹Ò¤ÇÒÁµŒÒ¹·Ò¹¢Í§µÑǵŒÒ¹·Ò¹ª¹Ô´¤‹Ò¤§·ÕèÊÒÁÒö
Í‹Ò¹¤‹Ò䴌͋ҧäÃ

7. µÑǵŒÒ¹·Ò¹ª¹Ô´á»Ã¤‹Òä´Œ (Variable resistor)
ÁÕÊÑ­Åѡɳ¤×Í «Öè§à»š¹µÑǵŒÒ¹·Ò¹·ÕèÊÒÁÒöà»ÅÕ蹤‹Ò
¤ÇÒÁµŒÒ¹·Ò¹ä´Œ´ŒÇ¡ÒÃËÁعËÃ×ÍàÅ×è͹»Ø†Á»ÃѺ¤‹Òà¾×èÍà¾ÔèÁËÃ×ÍÅ´¤‹Ò¤ÇÒÁµŒÒ¹·Ò¹·Õè
µŒÍ§¡Òà â´Â·ÑèÇ仨лÃСͺ´ŒÇÂᶺ¤ÇÒÁµŒÒ¹·Ò¹ «Öè§ÍÒ¨¨Ð·íÒ´ŒÇÂá¡Ã俵ËÃ×ÍÅÇ´¾Ñ¹
µ‹Í¡Ñº¢Ò·Õè 1 áÅÐ 3 áÅÐ˹ŒÒÊÑÁ¼Ñʵ‹Í¡Ñº¢Ò·Õè 2 ¡ÒûÃѺà»ÅÕ蹤ÇÒÁµŒÒ¹·Ò¹ ÊÒÁÒö
·íÒä´Œ´ŒÇ¡ÒÃàÅ×è͹˹ŒÒÊÑÁ¼ÑÊ仺¹á¶º¤ÇÒÁµŒÒ¹·Ò¹´Ñ§ÃÙ»
ÀÒ¾áÊ´§ËÅÑ¡¡ÒÃÊÌҧ¤ÇÒÁµŒÒ¹·Ò¹·Õèà»ÅÕ蹤‹Òä´Œ µÑǵŒÒ¹·Ò¹á»Ã¤‹Ò´ŒÇ¡ÒÃËÁع

8. µÑǵŒÒ¹·Ò¹¢Ö鹡Ѻáʧ
µÑǵŒÒ¹·Ò¹á»Ã¤‹Òä´ŒÍÕ¡ª¹Ô´Ë¹Öè§ ¤×͵ÑǵŒÒ¹·Ò¹·Õèà»ÅÕ蹤‹Ò¤ÇÒÁµŒÒ¹·Ò¹ä´Œâ´Â
à»ÅÕè¹»ÃÔÁÒ³áʧ·Õ赡¡Ãзº «Öè§àÃÕÂ¡Ç‹Ò áÍÅ´ÕÍÒÏ ( LDR ) ໚¹ª×èÍ‹ÍÁÒ¨Ò¡
Light Dependent Resistor ¶ŒÒäÁ‹ÁÕáʧµ¡¡ÃзºËÃ×ÍÁÕáʧµ¡¡Ãзº·Õè LDR
¹ŒÍ LDR ¨ÐÁÕ¤ÇÒÁµŒÒ¹·Ò¹ÊÙ§ ᵋ¶ŒÒ»ÃÔÁÒ³áʧµ¡¡Ãзº LDR ÁÒ¡
¤‹Ò¤ÇÒÁµŒÒ¹·Ò¹¢Í§ LDR ¨ÐµèíÒ ÊÑ­Åѡɳ¢Í§ LDR ¤×Í
â¤Ã§ÊÌҧ ÊÑ­ÅѡɳµÑǨÃÔ§

9. ¤íÒ¶ÒÁ
1. µÑǵŒÒ¹·Ò¹ª¹Ô´á»Ã¤‹Òä´Œ ÁÕÅѡɳÐÍ‹ҧäÃ
2. µÑǵŒÒ¹·Ò¹ª¹Ô´á»Ã¤‹Òä´Œ ÁÕÊÑ­Åѡɳà»š¹Í‹ҧäÃ
3. ¡ÒûÃѺà»ÅÕ蹤ÇÒÁµŒÒ¹·Ò¹¢Í§µÑǵŒÒ¹·Ò¹ª¹Ô´á»Ã¤‹Ò䴌ẺËÁع·íÒä´Œ
Í‹ҧäÃ
4. àÁ×è͵‹Íǧ¨Ãä¿¿‡Òâ´ÂÁÕ LDR ÍÂÙ‹ã¹Ç§¨Ã ËÒ¡¹Ñ¡àÃÕ¹µŒÍ§¡ÒÃãËŒÁÕ
¡ÃÐáÊä¿¿‡ÒäËż‹Ò¹ã¹Ç§¨ÃÁÒ¡ ¹Ñ¡àÃÕ¹¤Ç÷íÒÍ‹ҧäç‹Ò·ÕèÊØ´
5. ÊÑ­Åѡɳ¢Í§µÑǵŒÒ¹·Ò¹ª¹Ô´á»Ã¤‹Òä´Œâ´Â㪌áʧ໚¹Í‹ҧäÃ

10. ¡ÒÃÍ‹Ò¹¤‹ÒᶺÊբͧµÑǵŒÒ¹·Ò¹

11. 20%---äÁ‹ÁÕÊÕ
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5%0.1--·Í§
--99¢ÒÇ
--88à·Ò
-1000000077Á‹Ç§
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-10000055à¢ÕÂÇ
4%1000044àËÅ×ͧ
3%100033ÊŒÁ
2%10022á´§
1%1011¹éíÒµÒÅ
-100´íÒ
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º¹µÑǵŒÒ¹·Ò¹

12. ¤íÒ¶ÒÁ
1. ᶺÊբͧµÑǵŒÒ¹·Ò¹ÁÕ·Ñé§ËÁ´¡ÕèÊÕ
2. ᶺÊբͧÊÕã´·ÕèÁÕ¤‹Ò¤ÇÒÁ¼Ô´¾ÅÒ´¹ŒÍ·ÕèÊØ´

13. ¡ÒÃÍ‹Ò¹¤‹ÒᶺÊբͧµÑǵŒÒ¹·Ò¹
µÑÇÍ‹ҧ¡ÒÃÍ‹Ò¹¤‹ÒᶺÊբͧµÑǵŒÒ¹·Ò¹
µÑÇÍ‹ҧ·Õè 1 ¨§ËÒ¤‹Ò¤ÇÒÁµŒÒ¹·Ò¹¢Í§µÑǵŒÒ¹·Ò¹µ‹Í仹Õé
ᶺÊÕ·Õè 1 ᶺÊÕ·Õè 2 ᶺÊÕ·Õè 3 ᶺÊÕ·Õè 4
R à¢ÕÂÇ á´§ ÊŒÁ ·Í§
ÇÔ¸Õ·íÒ á¶ºÊÕ·Õè 1 ÊÕà¢ÕÂÇ ¤‹Ò»ÃШíÒᶺÊÕ ¤×Í 5
ᶺÊÕ·Õè 2 ÊÕá´§ ¤‹Ò»ÃШíÒᶺÊÕ ¤×Í 2
ᶺÊÕ·Õè 3 ÊÕÊŒÁ ¤‹Ò»ÃШíÒᶺÊÕ ¤×Í 3
ᶺÊÕ·Õè 4 Êշͧ ໚¹¤‹Ò¤ÇÒÁ¤ÅÒ´à¤Å×è͹ ± 5%
¨Ðä´ŒÇ‹Ò R = 52 x 103 ± 5%
´Ñ§¹Ñé¹ R ÍÂÙ‹ÃÐËÇ‹Ò§ (52000 - 2,600) ¶Ö§ (52000 + 2,600)
ËÃ×Í ÍÂÙ‹ÃÐËÇ‹Ò§ 49,400 - 54,600 âÍˏÁ

14. ¤íÒ¶ÒÁ
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äÁ‹ÁÕÊÕ¹éíÒµÒÅá´§à·Ò5
äÁ‹ÁÕÊÕá´§¹éíÒà§Ô¹à¢ÕÂÇ4
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