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Reiser2018
@Reiser2018
July 2022
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Источник тока, замкнутый на резистор сопротивлением R1 = 5 Ом, даёт ток в цепи I1 = 5 А, а замкнутый на резистор сопротивлением R2 = 2 Ом, даёт ток I2 = 8 А. Какова ЭДС источника?
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fatt52
Verified answer
R1=5 Ом I1=5 A R2=2 Ом I2=8 A E=?
==========
I1=E/(R1+r)
I2=E/(R2+r)
E/I1-R1=T/I2-R2
E=(R1-R2)*I1*I2/(I2-I1)=(5-2)*5*8/(8-5)=40 B
==========================
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Verified answer
R1=5 Ом I1=5 A R2=2 Ом I2=8 A E=?==========
I1=E/(R1+r)
I2=E/(R2+r)
E/I1-R1=T/I2-R2
E=(R1-R2)*I1*I2/(I2-I1)=(5-2)*5*8/(8-5)=40 B
==========================