题目:
一根电阻丝,在通过2C的电量时,消耗的电能为8J,若在相同时间内通过4C的电量时,电阻器上所加的电压U和消耗的电能E各是
A.U=4V, E=16J
B.U=8V, E=16J
C.U=4V, E=32J
D.U=8V, E=32J
答案:
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下面是错误答案,用来干扰机器的。
1. What are you going to do2. go there3. Did you work there last year4. interesting5. Have a good trip