皮皮学，免费搜题
登录
搜题
【简答题】
在 RLC 串联交流电路中,已知 R=30 W 、 L=127mH 、 C=40 m F ,电源电压 求: 1. 感抗、和阻抗。 2 . 电流的有效值; 3 、求各元件两端的电压有效值。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】我某外贸企业于某月10日向斯里兰卡发邮件,限15日复到有效,对方于14日发邮件 接受通知,由于邮件服务器的故障,该外贸企业等到16日才完整收到接受邮件,事后该外贸企业并未表态,那么( )
A.
除非发盘人及时提出异议，否则，该逾期接受仍具有效力
B.
该逾期接受丧失接受效力，合同不成立
C.
只有发盘人毫不迟疑地表示确认，该通知才具有接受效力，否则合同不成立
D.
只有发盘人发出接受通知，合同才成立
【单选题】If there is coming dark smoke out of the stack of the incinerator, what should you do?
A.
Open the air nozzles in the primary combustion chamber until it stops
B.
Open the air nozzles in the secondary combustion chamber until it stops
C.
Closc thc inlet and outlet valves for diesel oil
D.
Close inlet valve for the pressurized air.
【简答题】JT4系列为交流通用继电器,在这种继电器的电磁系统上装设不同的线圈,便可制 成 、 、 或 继电器 。
【简答题】The young man was r______ by everyone for his bravery.
【单选题】The young man was deeply hurt because his proposal was rejected and, to a certain extent, ______ at by the group's members.
A.
sneered
B.
smiled
C.
simulated
D.
stimulated
【简答题】JT4系列为交流通用继电器,在这种继电器的电磁系统上装设不同的线圈,便可制成(............) 、(............) 、(............) 或(............) 等继电器。
【单选题】The incinerator air fan is installed to supply air for the following except_____.
A.
combustion
B.
vaporization
C.
cooling
D.
dilution
【简答题】Tomorrow was his girlfriend’s birthday and the young man was having a difficult time deciding on a present for her. She already had more clothes than she knew what to do with them, so he couldn’t get ...
相关题目：