早教吧作业答案频道 -->英语-->
英语加物理题第十四题Question14(1mark)Apowerstationdeliversitspowerat33kVdownatransmissionlineconsistingofapairofcables10kmlongwitharesistanceof1.5Ohmseach.Howcouldthetransmissionlossesbeminimized?AIncre
题目详情
英语加物理题第十四题
Question 14 (1 mark)
A power station delivers its power at 33 kV down a transmission line consisting of a pair of cables 10km long with a resistance of 1.5 Ohms each.How could the transmission losses be minimized?
A Increase the transmission voltage and the Resistance of the Cables
B Reduce the transmission voltage and the Resistance of the Cables
C Increase the transmission voltage and Reduce the Resistance of the Cables
D None of the other answers
E Reduce the transmission voltage and Increase the Resistance of the Cables
Question 14 (1 mark)
A power station delivers its power at 33 kV down a transmission line consisting of a pair of cables 10km long with a resistance of 1.5 Ohms each.How could the transmission losses be minimized?
A Increase the transmission voltage and the Resistance of the Cables
B Reduce the transmission voltage and the Resistance of the Cables
C Increase the transmission voltage and Reduce the Resistance of the Cables
D None of the other answers
E Reduce the transmission voltage and Increase the Resistance of the Cables
▼优质解答
答案和解析
说的是供电所给10km远的地方供电 如何减少损失功率
损失功率=I*R^2
减小R 加大传送电压 能减少损失功率
答案为:C
损失功率=I*R^2
减小R 加大传送电压 能减少损失功率
答案为:C
看了 英语加物理题第十四题Ques...的网友还看了以下:
\已知命题p:若x>y,则-xy,则x2>y2,在命题①p∧q;②p∨q;③p∧(已知命题p:若x 2020-08-01 …
1:已知命题P:∃x∈R,cosx=4分之5,命题q:∀x∈R,x²-x+1>0,则下列结论正确的 2020-08-01 …
数学真假命题若p为真命题,q为假命题,那么p或q是真命题还是假命题,p且q呢,若p为真命题,q为真 2020-08-01 …
写出下列“P且Q”,“P或Q“,”非P“,“非Q”的形式,并且判真假?已知命题P:若a>1,则a³> 2020-12-07 …
高分求一道思考题答案,快进来,满是惊喜!如题数学思考题,本题是《趣味数学》第6期的超级思考题,回答问 2020-12-13 …
对于命题p和命题q,若p真q假,则命题p∧q和命题p∨q的真假为()A.p∧q和p∨q都为真B.p∧ 2020-12-13 …
下列结论:①若命题p:∃x0∈R,tanx0=1;命题q:∀x∈R,x2-x+1>0,则命题“p∧¬ 2020-12-23 …
已知命题p:x∈R,使;命题q:x∈R,都有x2+x+1>0.给出下列结论:①命题“p∧q”是真命题 2020-12-23 …
如果命题“p或q”为真,命题“p且q”为假,则()A.命题p和命题q都是假命题B.命题p和命题q都是 2020-12-31 …
如果命题“P或q”为真命题,命题“P且q”为假命题,那么()A.命题P和q都是为真命题B.命题P和q 2021-01-01 …