大师作文网英文物理题(circuit)
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英文物理题(circuit)
In the circuit shown,it makes no difference whether the switch
is open or closed.What is emf ε3 in terms of the other
quantities shown?
The circuit diagram is here:
In the circuit shown,it makes no difference whether the switch
is open or closed.What is emf ε3 in terms of the other
quantities shown?
The circuit diagram is here:
it makes no difference whether the switch
is open or closed,表明ε3等于开关打开时ε1ε2结点以及R1R2结点两端电压.求出这个电压就行.
还是用原始的方法吧,电流I=(ε1+ε2)/(R1+R2)
电压ε3=ε2-R2*(ε1+ε2)/(R1+R2)=(ε2*R1-ε1*R2)/(R1+R2)
is open or closed,表明ε3等于开关打开时ε1ε2结点以及R1R2结点两端电压.求出这个电压就行.
还是用原始的方法吧,电流I=(ε1+ε2)/(R1+R2)
电压ε3=ε2-R2*(ε1+ε2)/(R1+R2)=(ε2*R1-ε1*R2)/(R1+R2)