Tebranayotgan nuqta tezligi: +siljishni r/2 ga oldinda yuradi

ТЕБРАНИШЛАР

1. 
   Tebranayotgan nuqta tezligi:
   

+siljishni r/2 ga oldinda yuradi.
-siljishga nisbatan qarama –qarshi fazada bo‘ladi.
-siljishdan r/2 ga orqada qoladi.
-siljish bilan bir xil fazada bo‘ladi.

2. 
   So’nuvchi tebranishlar tenglamasi yechimi:
   

+x=Ae^-βt cos(ωt+s)
-x=A cos(ωt +s)
-x=Ae cos(ωt +s)
-x=A cos(ωt +s)

3. 
   Majburiy tebranish differensial formulasi:
   

-dx/dt+2vdx/dt+щx=0
-2vdx/dt+щx=0
-dx/dt+щx=0
+d ²Q/dt+2δQx/dt+ωQ=(U ₀/L)sin ωt

4. 
   Fizik mayatnik deb :
   

-Tashqi kuchlar ta’sirida tebranuvchi moddiy nuqtaga aytiladi
-biror ipga osilgan ulchamlari katta bo’lgan sharchaga aytiladi
+Og’irlik kuchi tasirida gorizontal osmaga nisbatan tеbranuvchi qattiq jism
-yorug’likni qaytarish xususiyatiga ega

5. 
   Erkin garmonik tebranishlarning defferinsal tenglamasini ko’rsating:
   

-F=m*d^2x/dt^2
-X=Acos(W0t+P0)
+d²x/dt²+ω₀²x=0
-F=ma

6. 
   Majburiy tebranish tenglamasi yechimi qanday ifodalanadi:
   

+x=A*cos(ω₀t+φ₀)
-x=x0+P*t
-x=A*sin(Wt-P)
-x+A*sinW (t-I/P)

7. 
   Erkin garmonik tebranishlarda maksimal tezlanish nimaga teng:
   

+Aω₀²
-A*W
-A/W0^2
-A/W

8. 
   So’nuvchi tеbranish harakat tеnglamasi ifodasini ko’rsating:
   

-x=Asin(Wt-P)
-X=Asin(Wt+P0)
+x=А*e^-βt*sinwt
-η=(Q1-Q2)/Q1

9. 
   So’nuvchi tebranishlar uchun so’nish ko’rsatkichi ifodasini ko’rsating:
   

-F=-kx
+β=r/2m
-p=r/2m*T
-η=(Q1-Q2)/Q1

10. 
    Matematik mayatnik tebranish davri ifodasini ko’rsating:
    

-T=2p/W
-M=I*e
+T=2π(l/g)^1/2
-F=m*a

11. 
    Erkin garmonik tеbranishlarning dеffеrintsal tеnglamasini ko’rsating:
    

-F=m*d^2x/dt^2
-X=Acos(W0t+P0)
+d^2x/dt^2+W0^2x=0
ЭЛЕКТРОМАГНИТ ТЕБРАНИШЛАР

1. 
   Tebranish konturidagi xususiy tebranishlar chastotasining ifodasini ko’rsating:
   

+ω=1/2π(LC)^1/2
-T=2p*LC
-W=1/T
-C=T2/4/2l

2. 
   Elеktromagnit to’lqindagi elеktr va magnit maydon kuchlanganlik vеktorlari:
   

+Bir biriga pеrеpеndikulyar, tarqalish yo’nalishi esa Е va N vеktorlar еtgan tеkislikka pеrpеndikulyar bo’lgan vеktorlar
-Bu vеktor moduli tarqalishi yo’nalishiga pеrеpеndikulyar bo’lgan 1m^2 yuza sirti bo’yiga 1 sеkundda elеktromagnit to’lqinlar olib o’tadigan enеrgiyasi miqdoriga tеng
-Induktiv g’altak L va C sig’imi kondеnsatordan iborat yopiq elеktrik zanjir

3. 
   Tеbranish konturining chastotasi formulasini ko’rsating:
   

+Wo=(LC)^1/2
-Wo=2п/n
-Wo=(k/n)^1/2
-Wo=(g/l)^1/2

4. 
   Berilgan tenglamalardan qaysi biri o‘zgaruvchan tok kuchining ifodasi bo‘ladi:
   

- I=q/t
-I=U/R
+I=I₀ sinwt
-I=E/(R+r)

5. 
   Berilgan tenglamalardan qaysi biri o‘zgaruvchan tok kuchlanishining ifodasi bo‘ladi:
   

-I=q/t
-I=I₀ sinwt
I=E/(R+r)
+U=U₀*sin wt

6. 
   Berilgan tenglamalarning orasidan o‘zgaruvchan tok kuchlanishning effektiv qiymatini ifodalovchi bog‘lanishni ko‘rsating:
   

-U=J R
+U₁=U₀ / 2
-U=U sin t
-U=A/q

ТУЛКИН

1. 
   Yassi to‘lqin tenglamasi:
   

-S(x,t)=A cos(ωt +s)
-S(x,t)=A cos(ωt +2rt+s)
+S(x,t)= A cos(ωt -kx)
-S(x,t)=Ae cos(ωt +s)

2. 
   To’lqin uzunligi ifodasini toping:
   

-S=r*t
+λ=v t
- λ =S*t
-X=Acoswt