c7弱电系统

答题卡: 1112

学习模式考试模式

翻译

1.What voltage will be present in a circuit if a 10-ohm resistor carries a current of 5 amps? 1.如果一个 10 欧姆的电阻器通过 5 安培的电流，电路中的电压是多少？

A. 15 volts A. 15 伏特

B. 50 volts B. 50 伏特

C. 60 volts C. 60 伏特

D. 10 volts D. 10 伏特

2.When signal attenuation is listed by the manufacturer in decibels per 100 feet, how should the use of a two-way splitter be factored into the total loss calculation? 2.如果制造商以每100英尺的衰减分贝数来标注信号衰减，那么在计算总损耗时，如何考虑双向分配器的影响？

A. Add the splitter’s insertion loss to the cable loss A. 将分配器的插入损耗添加到电缆损耗中

B. Subtract the splitter loss from the cable attenuation B. 从电缆衰减中减去分配器损耗

C. Divide the total calculated loss by two C. 将计算出的总损耗除以二

D. Ignore the splitter and calculate cable loss only D. 忽略分配器，仅计算电缆损耗

AI解题

吉象智能为您解答

点击AI解题，查看正确答案！