Gurumuda Networks
Lub zog hluav taws xob ntawm tus neeg coj ntawm lub pob - teeb meem thiab kev daws teeb meem
1. Ib lub pob hluav taws xob 4-μC uas muaj lub vojvoog ntawm 8-cm. Txheeb xyuas lub zog hluav taws xob ntawm qhov chaw ntawm lub pob. (k = 9.10 9 Nm 2 .C -2 )
Paub:
cov hluav taws xob (Q) = 4 μC = 4 x 10-6 C 
Lub vojvoog ntawm lub pob (r) = 8 cm = 8 x 10 -2 m
Coulomb tus nqi tas mus li (k) = 9.10 9 Nm 2 .C -2
Xav tau: Lub zog hluav taws xob ntawm qhov chaw ntawm lub pob (V)
Cov voj voog capacitors series thiab parallel - teeb meem thiab kev daws teeb meem
1. Tag nrho cov nqi hauv cov voj voog capacitor hauv qab no yog dab tsi (1 μF = 10 -6 F)
Paub:
Lub Capacitor 1 (C)1) = 3 μF
Lub Capacitor 2 (C2 ) = 3 μF
Lub Capacitor 3 (C3 ) = 3 μF
Lub Capacitor 4 (C4 ) = 2 μF
Lub Capacitor 5 (C5 ) = 3 μF
Lub zog hluav taws xob (V) = 3 Volt
Kev sib nqus induction - teeb meem thiab kev daws teeb meem
1. Cov yam hauv qab no cuam tshuam rau qhov sib nqus induction ntawm tus neeg xyuas hlau.
(1) qhov tam sim no ntws hauv cov hlau
(2) kev tso cai
(4) qhov deb ntawm ib qho taw tes ntawm cov xov hlau
Cov lus hais twg yog qhov tseeb
Txoj kev xav tshwj xeeb ntawm kev sib raug zoo - teeb meem thiab kev daws teeb meem
1. Ib yam khoom uas ntev li 60 m txav mus los ntawm qhov ceev ntawm 0.6 c (c = qhov ceev ntawm lub teeb). Raws li tus neeg soj ntsuam uas nyob ruaj khov, qhov ntev ntawm yam khoom yog dab tsi?
Paub:
Qhov ntev kom raug (L o ) = 60 meters
Qhov ceev ntawm yam khoom (v) = 0.6 c
Xav tau: Qhov ntev ntawm kev sib cog lus (L)
Cov nthwv dej sawv ntsug - teeb meem thiab kev daws teeb meem
1. Txoj hlua 3-m raug khi rau ntawm ib kawg thiab lwm qhov kawg txuas nrog lub vibrator. Thaum lub vibrator raug co, txoj hlua tsim ua ib nthwv dej ruaj khov , raws li pom hauv daim duab hauv qab no.
Txheeb xyuas qhov chaw ntawm 5th antinode los ntawm qhov kawg ruaj khov.
Tshuaj:
Qhov nrug ntawm ob lub nodes = 3 meters / 5 = 3/5 meters.
Qhov kev ncua deb ntawm thawj lub node thiab qhov kawg ruaj khov = 3/5 meters
Lub zog sib nqus ntawm ob txoj hlua sib luag - teeb meem thiab kev daws teeb meem
1. Ob tug neeg hlau sib luag uas nqa cov hluav taws xob I 1 thiab I 2 , raws li pom hauv daim duab hauv qab no. Qhov loj thiab kev coj ntawm lub zog sib nqus uas ob tug neeg hlau ntsib yog dab tsi ? (μ o = 4π. 10 -7 Wb.A -1 .m -1 )
Paub:
cov fais fab tam sim no 1 (Kuv1) = 3 Amperes
Lub zog hluav taws xob 2 (I2 ) = 5 Ampere
Qhov permeability ntawm qhov chaw dawb (µo ) = 4π x 10 -7 wb A -1 m -1
Qhov nrug ntawm ob tus neeg hlau (L) = 5 cm = 5 x 10 -2 meters
Cov Cai ntawm Kirchhoff - Teeb Meem thiab Kev daws teeb meem
1. Lub zog hluav taws xob kawg ntawm lub roj teeb hauv lub voj voog hauv qab no yog dab tsi?
tshuaj
emf = lub zog hluav taws xob = qhov sib txawv ntawm cov terminals thaum tsis muaj tam sim no ntws mus rau ib qho circuit sab nraud.
Qhov hluav taws xob kawg (V) = qhov sib txawv ntawm cov kawg thaum muaj hluav taws xob ntws los ntawm lub roj teeb.
Yog tias tsis muaj hluav taws xob rub tawm ntawm lub roj teeb, qhov hluav taws xob kawg sib npaug rau emf.
Paub:
Kev txav mus los ntsug - teeb meem thiab kev daws teeb meem
1. Lub pob A pov ntsug rau saum ntuj nrog qhov ceev ntawm 10 m/s. 1 vib nas this tom qab, los ntawm tib qho chaw, Lub pob B raug pov ntsug rau saum ntuj rau tib txoj kev, nrog qhov ceev ntawm 25 m/s. Lub pob B siab npaum li cas thaum nws ntsib lub pob A.
Tshuaj:
Thaum daws qhov teeb meem ntawm kev txav ntsug , tus lej vector uas kev taw qhia mus rau saum toj yog muab lub cim zoo, tus lej vector uas kev taw qhia mus rau hauv qab yog muab lub cim tsis zoo.
Lub zog electrostatic - teeb meem thiab kev daws teeb meem
1. Yog tias lub zog hluav taws xob zoo li qub yog 144 N, qhov deb ntawm ob qho nqi yog dab tsi ... (1 μC = 10 -6 C thiab k = 9.10 9 Nm 2 .C -2 )
Paub:
Lub zog hluav taws xob (F 12 ) = 144 N
Them 1 (q 1 ) = 10 μC = 10 x 10 -6 C
Them 2 (q 2 ) = 4 μC = 4 x 10 -6 C
Qhov ruaj khov (k) = 9 x 10 9 Nm 2 .C -2
C = Coulomb, N = Newton, m = 'meter'
Kev cuam tshuam ob qho tib si - teeb meem thiab kev daws teeb meem
1. Lub teeb daj hla dhau ob qhov thiab pom ib qho qauv cuam tshuam ntawm lub vijtsam.
(1) Cov ntug ci ntsa iab yuav dav dua yog tias lub teeb daj hloov xiav
(2) Cov ntug ci ntsa iab yuav nce ntxiv yog tias qhov deb ntawm cov qhov txiav raug txo qis
(3) Lub zog ntawm lub teeb txo qis yog tias nws nyob deb ntawm ntug nruab nrab
(4) Lub zog ntawm lub teeb yog qhov ruaj khov yog tias nws nyob deb ntawm ntug nruab nrab