A=200 Дж Qx=200 Дж η=?
===
Qн=A+Qx
η=A/Qн=A/(A+Qx)=200/(200+200)=0,5 (50%)
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A=200 Дж Qx=200 Дж η=?
===
Qн=A+Qx
η=A/Qн=A/(A+Qx)=200/(200+200)=0,5 (50%)
===================================