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【单选题】图 17 所示 电路中,电流 I 和电压 U AB 的值分别为 [ ] 。
A.
I ＝ 2A 、 U AB ＝ 0
B.
I ＝ 3A 、 U AB ＝－ 2V
C.
I ＝－ 3A 、 U AB ＝ 10V
D.
I ＝－ 3A 、 U AB ＝ 0
【简答题】JC 1 .17 求题 1.17 图所示电路中的电压 U 和电流 I ,并求受控电源吸收的功率。
【简答题】如图1-17所示，已知U S =3V，I S =2A，R 1 =1Ω，R 2 =2Ω，求电路中电压源的电流I和电流源的电压U。
【简答题】请将该英文句子翻译成中文 The power absorbed or supplied by an element is the product of the voltage across the element and the current through it. If the power has a plus sign, power is being delivered to or abso...
【简答题】Translation 2. The power absorbed or supplied by a circuit element is the product of the voltage across the element and the current through it.
【简答题】Electric power is the mathematical product of twoquantities: current and ________.A. power B. voltage
【简答题】III. Translate English into Chinese:把下列句子翻译成中文 1. An electric circuit is an interconnection of electrical elements. 2. Electric current is the time rate of change of charge. 3. Voltage (or potential d...
【单选题】Supplier power is ________ if the buyer is not price sensitive and uneducated regarding the product. If the supplier’s product is highly differentiated, then supplier bargaining power is ________.
A.
strong; strong
B.
strong; weak
C.
weak; strong
D.
weak; weak
【简答题】Electric power is the mathematical product of twoquantities: current and ________.
【单选题】In measuring the output characteristic parameters of solar cells, the ratio of the product of the maximum output power and the product of the short-circuit current and open circuit voltage of solar c...
A.
Conversion efficiency
B.
filling factor
C.
Spectral response
D.
block resistance
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