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lesinpavel5
@lesinpavel5
August 2022
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Помогите решить пожалуйста.Нужно 3 задания.Заранее спасибо
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fatt52
Verified answer
1) U=8 B W=0.4*10^-5 Дж C=?
===
W=C*U²/2
C=2*W/U²=2*0.4*10^-5/8²=0.125*10^-6 Ф
===========
2) В катушке
===========
3) C=8*10^-6 Ф L=3 Гн Im=4 A T=? q(t)=? i(t)=?
===
ω=1/√(L*C)=1/√(3*8*10^-6)≈204 рад/с
Im=qm*ω
qm=Im/ω=4/204≈0.02 Кл
q(t)=0.02*cos(204*t)
i(t)=-4*sin(204*t)
=================================
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Answers & Comments
Verified answer
1) U=8 B W=0.4*10^-5 Дж C=?===
W=C*U²/2
C=2*W/U²=2*0.4*10^-5/8²=0.125*10^-6 Ф
===========
2) В катушке
===========
3) C=8*10^-6 Ф L=3 Гн Im=4 A T=? q(t)=? i(t)=?
===
ω=1/√(L*C)=1/√(3*8*10^-6)≈204 рад/с
Im=qm*ω
qm=Im/ω=4/204≈0.02 Кл
q(t)=0.02*cos(204*t)
i(t)=-4*sin(204*t)
=================================