搜题
用户您好, 请在下方输入框内搜索其它题目:
搜题
题目内容 (请给出正确答案)
提问人:网友 发布时间:
【单选题】

With a purely resistance load the voltage and current are in phase, giving a power factor of ().

A、one

B、less than one

C、more than one

D、negative one

更多“With a purely resistance load the voltage and current are in phase, giving a power factor of ().”相关的问题
第2题

AA.pure resistance  B、B.capacitive  C、C.inductive  D、D.None of the above  

点击查看答案
第3题

A、both meters in series with the resistance  B、both meters in parallel with the resistance  C、the ammeter in series and the voltmeter in parallel with the resistance  D、the ammeter in parallel and the voltmeter in series with the resistance  

点击查看答案
第4题

AA.both meters in series with the resistance  B、B.both meters in parallel with the resistance  C、C.the ammeter in series and the voltmeter in parallel with the resistance  D、D.the ammeter in parallel and the voltmeter in series with the resistance  

点击查看答案
第5题

AA.increase in resistance with increased temperature  B、B.increase in resistance with decreased temperature  C、C.decrease in resistance with increased temperature  D、D.increase in conductance with increased temperature  

点击查看答案
第6题

A、higher boiling temperature for a given pressure than does a pure refrigerant  B、lower boiling temperature for a given pressure than does a pure refrigerant  C、boiling pressure equal to that of a pure refrigerant at a given pressure  D、boiling point will not be affected by entrained oil  

点击查看答案
第7题

Aresist changes in viscosity with changes in temperature  B、resist emulsification  C、neutralize acids  D、resist oxidation at high temperatures  

点击查看答案
第8题

AA.shunt  B、B.high-resistance coil in the armature circuit  C、C.low-resistance coil in the armature circuit  D、D.shunt and a coil of high resistance  

点击查看答案
第9题

A、heat-resisting acrylic  B、heat-resisting aluminum  C、insulating varnish  D、insulating white lead  

点击查看答案
客服
TOP

请使用微信扫码支付

订单号:
遇到问题请联系在线客服