Объяснение:
Q=A=U*I*t
U=Q/(I*t)=0.078/(120*0.3)=0.0022 В= 2.2мВ
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Объяснение:
Q=A=U*I*t
U=Q/(I*t)=0.078/(120*0.3)=0.0022 В= 2.2мВ