问题描述:
如图所示,直线a为某电源的U-I图线,直线b为电阻R的U-I图线,用该电源和该电阻组成闭合电路时,电源的输出功率和电源的内阻分别为( )
A. 4W,1Ω
B. 6W,1Ω
C. 4W,0.5Ω
D. 2W,0.5Ω
A. 4W,1Ω
B. 6W,1Ω
C. 4W,0.5Ω
D. 2W,0.5Ω
问题解答:
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