※ 引述《a1133333 (阿傑)》之銘言：
: 第一題不我一直算出解答的答案 請大家提供自己的算法
: 1.A circuit has a variable load,R. Power measurements show that the power into R
: is maximum at 100W with R=6歐姆. What current would flow if R were replaced
: by a 3歐姆 resistor? 答案:I=5.44A
: 2.A student is testing a circuit containing batteries and resistor. The output
: voltage is 6.26V when measured with a good (assume idea)voltmeter,but 6.05V
: when a 600歐姆 resistor is connected across the output terminals. What current
: would result if the output were shot-circuited?
: 答案:0.301A
: 請大家幫幫忙 謝謝
第二題
依照題目可以知道 電池的電壓是6.26v
但是接了一個600歐姆的負載之後變成6.05v
得知一個關係式 6.26*600/（600+R）＝6.05V
原電路的R即可得知 R＝20.826歐姆
如果把輸出端短路 I＝6.26/20.826歐姆＝0.3006A
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