已知2Ω电阻的电压<img src="/lqwvjeImg/47/47a49f36d3b944d47a50493f09b6082f.png"style="width:110px;height:38px;">V,当<img src="/lqwvjeImg/a2/a276bc20951f1118925b84fcd6fba356.png"style="width:32px;height:26px;">为关联方向时,电阻上电流<img src="/lqwvjeImg/a0/a0b274a9c759d455a0bcff0eca1e2583.png"style="width:17px;height:37px;">= () A<br>·<img src="/lqwvjeImg/d4/d428878f2306788bdd9124eb3d558805.png"style="width:86px;height:30px;"><br>·<img src="/lqwvjeImg/9e/9e1154b08065a64d513de43ef071b4ed.png"style="width:62px;height:25px;"><br>·<img src="/lqwvjeImg/85/8509e30b4684af5e01cecbf30d8cc7f3.png"style="width:81px;height:25px;">