Isibonelo Sesekethe Kagesi Eshintshanayo

Izibonelo Ezi-6 Zemibuzo Yesekethe Kagesi Eshintshanayo Yamanje

1. Bheka isithombe sesekethe se-RLC esilandelayo! Uma i-impedance yesekethe ingu-250 Ω, khona-ke ukumelana isitha (R) ngu…..

A. 50 Ω

B. 200 Ω

C. 400 Ω

D. 600 Ω

E. 800 Ω

Ingxoxo

Kuyaziwa ukuthi:

Z = 250 Ω

C=8 m F = 8 x 10^-6 F

L = 0,8H

V = 200 Volt

ω = 500 rad/s

Kubuziwe: Ukumelana nokumelana (R)

Impendulo:

Ifomula ye-impedance ephelele yesekethe:

Impendulo efanele ingu-B.

2. Cabanga ngochungechunge olulandelayo lwesekethe ye-RLC! Umehluko ongaba khona kuzo zonke iziphetho ze-inductor….

A. 100 Volt

B. 200 Volt

C. 300 Volt

D. 350 Volt

E. 400 Volt

Ingxoxo

Kuyaziwa ukuthi:

R = 40 W

X_L = 150 W

X_C= 120 W

V = 100 Volt

Kubuziwe: Umehluko ongaba khona phakathi kwemikhawulo ye-inductor

Impendulo:

Ifomula ye-impedance ephelele yesekethe:

Impendulo efanele ngu-C.

3. Bheka umdwebo wesekethe ye-RLC olandelayo!
Umkhawulo ophezulu wamanje wesekethe ngu.. (1 µF = 10^-6 F)

A. 1,3 A
B. 1,5 A
C. 2,0 A
D. 2,4 A
E. 2√2 A

Ingxoxo

I-Diketahui :
Isivikelo (R) = 12 Ohm
I-Inductor (L) = 0,075 H
I-Capacitor (C) = 500 µF = 500 x 10^-6 F = 5 x 10^-4 UFarad
I-Voltage (V) = V_o isono ωt = V_o isono 2πft = 26 isono 200t
Kubuziwe : Umkhawulo wamanje wesekethe
Jawab :

Ukusabela okukhuthazayo (X)_L) = ωL = (200)(0,075) = 15 Ohm
Ukusabela kwamandla (X)_C) = 1 / ωC = 1 / (200)(5 x 10^-4) = 1 / (1000 x 10^-4) = 1/10^-1 = 10¹ = 10 Ohm   
Isivikelo (R) = 12 Ohm
Ukuvimba (Z) :
Amandla amanje (I) :
I = V / Z = 26 Volts / 13 Ohms
I = 2 Volts/Ohm
I = 2 Ampere
Impendulo efanele ngu-C.

4. Isekethe ye-RLC ihlelwe njengoba kuboniswe esithombeni esingezansi. Igrafu ye-sine wave ephumelayo uma_L > X_C kuyinto…

Ingxoxo

Imininingwane:
X_L = ukusabela okukhuthazayo noma ukuvimba kwe-inductor
X_C = ukusabela kwe-capacitive noma i-capacitor impedance

Ku-inductor, i-voltage kagesi (v) ilandela ugesi kagesi (i) ngo-¼ turn noma ngo-90°.^o.
Ku-capacitor, ugesi (i) ulandela i-voltage kagesi (v) ngo-¼ turn noma ngo-90°.^o.

Uma u-X_L > X_C khona-ke isekethe iyasiza, ngakho-ke igrafu ye-sine wave ephumayo ibukeka njengempendulo C lapho i-voltage (v) ingaphambi komshini wamanje (i) ngo-¼ turn noma ngo-90°^o.

Impendulo efanele ngu-C.

5. Jabulela ubumnandi!

Isekethe ye-RLC ihlelwe njengoba kuboniswe ngenhla. Igrafu ye-sine wave ephumelayo uma_L > X_C kuyinto…

Ingxoxo

Imininingwane:

X_L = ukusabela okukhuthazayo noma ukuvimba kwe-inductor, X_C = ukusabela kwe-capacitive noma i-capacitor impedance.

Ku-inductor, i-voltage kagesi (V) ilandela ugesi kagesi (I) nge-¼ turn noma i-90°.^o.

Ku-capacitor, ugesi wamanje (I) ulandela i-voltage kagesi (v) ngo-¼ turn noma ngo-90°.^o.

Uma u-X_L > X_C khona-ke isekethe iyasiza, ngakho-ke igrafu ye-sine wave ephumayo ibukeka njengempendulo C lapho i-voltage (v) ingaphambi komshini wamanje (i) ngo-¼ turn noma ngo-90°^o.

Impendulo efanele ngu-C.

6. Isekethe ye-RLC ihlelwe njengoba kuboniswe esithombeni esingezansi. Igrafu ye-sine wave ephumelayo uma_L > X_C kuyinto...

Ingxoxo

Imininingwane:

X_L = ukusabela okukhuthazayo noma ukuvimba kwe-inductor, X_C = ukusabela kwe-capacitive noma i-capacitor impedance

Ku-inductor, i-voltage kagesi (V) ilandela ugesi kagesi (I) nge-¼ turn noma i-90°.^o.

Ku-capacitor, ugesi wamanje (I) ulandela i-voltage kagesi (v) ngo-¼ turn noma ngo-90°.^o.

Uma u-X_L > X_C khona-ke isekethe iyasiza, ngakho-ke igrafu ye-sine wave ephumelayo ibukeka njengempendulo C lapho i-voltage (v) ukulandelela aurus (i) kuze kufike ku-¼ turn noma 90^o.

Impendulo efanele ngu-C.

Umthombo wombuzo:

Imibuzo Yokuhlolwa Kazwelonke Yefiziksi Ye-SMA/MA U-ZC-2013/2014