3,1) e=6 eo=8.85*10^-12 C=1200*10^-12 S=1.2*10^-5 d=?
C=eo*e*S/d d=eo*e*S/C=8.85*10^-12*6*1.2*10^-5/1200*10^-12=5.3*10^-7 м
=====
3,2) e1=2 e2=1 r1=0.2 r2=?
F=k*q1*q2/r² k=1/(4*π*eo*e)
1/(e1*r1²)=1/(e2*r2²) r2=r1*√(e1/e2)=0.2*√(2/1)=0.282 м
============
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
3,1) e=6 eo=8.85*10^-12 C=1200*10^-12 S=1.2*10^-5 d=?
C=eo*e*S/d d=eo*e*S/C=8.85*10^-12*6*1.2*10^-5/1200*10^-12=5.3*10^-7 м
=====
3,2) e1=2 e2=1 r1=0.2 r2=?
F=k*q1*q2/r² k=1/(4*π*eo*e)
1/(e1*r1²)=1/(e2*r2²) r2=r1*√(e1/e2)=0.2*√(2/1)=0.282 м
============
ε=6, C=1200 пФ=1200*10^-12Ф, S=1,2*10^-3 м³. d-?
C=ε0εS/d, d=ε0εS/C.
d=8,85*10^-12*6*1,2*10^-3/(1200*10^-12) = 0,053*10^-3 м = 5,3*10^-5 м.
2.
r1=0,2 м, F1=F2, ε1=2, ε2=1. r2-?
F1=kq1q2/(ε1r1²), F2=kq1q2/(ε2r2²),
kq1q2/(ε1r1²)=kq1q2/(ε2r2²),
1/(ε1r1²)=1/(ε2r2²),
ε1r1²=ε2r2²,
r2²=ε1r1²/ε2.
r2=√(ε1r1²/ε2)=r1√ε1/ε2.
r2=0,2√(2/1)= 0,28 м.