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§J§Æ²ü¤Ò¹q¬y©w«ß¡]KCL¡^¡]Kirchhoff's Current Law¡AKCL¡^
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¥H¤W¹Ï¸ÑÄÀ ¬y¤J¹q¬y©M=¬y¥X¹q¬y©M
¸`ÂIA Is=IR1+IR2
§Q¥Î¥¦¨Ó¨D¨ÃÁpÁ`¹qªý:
Vs/R=VR1/IR1 + VR2/IR2
¦]¬°¨ÃÁp ©Ò¥H¹qÀ£¬Ò¬Ûµ¥ Vs=VR1=VR2
Vs/R=Vs/R1+Vs/R2
®ø±¼Vs ±o
1/R= 1/R1 + 1/R2
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§J§Æ²ü¤Ò¹qÀ£©w«ß¡]KVL¡^ ¡]Kirchhoff's Voltage Law¡AKVL¡^
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¹ï³o³æ¤@°j¸ô¦Ó¨¥, ¨ú¶¶®É¤¤¤è¦V:
-Vs + VR1 +VR2=0
Vs ¥ý¸I¨ìt·¥, ©Ò¥H¬°t.
R1¹q¬y¬y¤JºÝ¬°¥¿, ©Ò¥HVR1 ¥¿.
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-Vs + IR1 x R1 + IR2 x R2=0
§Q¥Î¥¦¨Ó¨D¦êÁpÁ`¹qªý:
¦] IR1 = IR2 = Is
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Is (IR1+IR2) = Vs
Vs/Is=R1+R2
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