单选题The resistance of a conductor varies （）Adirectly as its length and inversely as its cross-sectional areaBinversely as its length and directly as its cross-sectional areaCdirectly as its length and directly as its cross-sectional areaDinversely as its length and inversely as its cross-sectional area
单选题
The resistance of a conductor varies （）
A
directly as its length and inversely as its cross-sectional area
B
inversely as its length and directly as its cross-sectional area
C
directly as its length and directly as its cross-sectional area
D
inversely as its length and inversely as its cross-sectional area
参考解析
解析：
暂无解析
相关考题：
() has written a note to the boy on a Christmas card. A、Santa# #his MomB、his DadC、the Conductor
Train conductor: Excuse me, mama. Ticket, please.Passenger: Sorry. I left it in the smoking section and I'll go fetch it.Train conductor: It's OK, lady._________ .A． Take your timeB． Take your seatC． You can go nowD． As you please
()is the boy who feels that Christmas doesn't work out for him.A、BillyB、JohnC、the hero boyD、the Conductor
I love traveling in the countryside, but I don't like losing my way. I went on a trip recently, but my trip took me longer than I expecteD."I'm going to Woodford Green," I said to the conductor as I got on the bus, "but I don't know where it is.""I'll tell you where to get off," answered the conductor.I sat in the front of the bus to get a good view of the countryside. After some time, the bus stoppeD.Looking around, I realized with a shock that I was the only passenger left on the bus."You'll have to get off here," the conductor saiD."This is as far as we go.""Is this Woodford Green?" I askeD."Oh, dear," said the conductor suddenly. "I forgot to put you off.""It doesn't matter," I saiD."I'll get off here.""We are going back now," said the conductor."Well, in that case, I would prefer to stay on the bus," I answereD.1. The conductor ________.：A.got angry when he found out the author was still on the busB.wanted to make a joke with the authorC.was rude to the author at firstD.forgot to tell the author where to get off the bus
Please explain how we describe the resistance in semiconductor. Compare the resistance of a metal,poly and diffusion in tranditional CMOS process.（威盛笔试题circuit design-beijing-03.11.09）
What is the BEST conductor of electricity?A.Carbon dioxideB.Distilled waterC.Fresh waterD.Salt water
MRC是什么的缩写？（）A、Modular Radio ConnectB、Modular Resistance CabinetC、Modular Radio CabinetD、Modular Resistance Connect
What is the maximum number of CTI ports for a Cisco Unified Contact Center Express 4.0 Standard deployment? （）A、150 B、200 C、300 D、varies based on the number of expansion servers used E、varies based on the number of applications configured
According to Ohm’s Law， which of the following is correct？（）A、As voltage increases， resistance decreasesB、As amperage decreases， resistance decreasesC、As resistance decreases， amperage increasesD、As resistance increases， voltage increases
单选题If a voltmeter is connected across a line, it must be protected with a（）AshuntBhigh-resistance coil in the armature circuitClow-resistance coil in the armature circuitDshunt and a coil of high resistance
单选题What is the BEST conductor of electricity（）.ACarbon dioxideBDistilled waterCFresh waterDSalt water
单选题For practical purposes, in a simple series circuit, the source voltage will be dropped across one resistor if it has（）.Ahalf the resistance of the other resistorBa resistance equal to the otherCat least ten times the resistance of the otherDa partial short circuit
单选题According to Ohm’s Law， which of the following is correct？（）AAs voltage increases， resistance decreasesBAs amperage decreases， resistance decreasesCAs resistance decreases， amperage increasesDAs resistance increases， voltage increases
单选题Which of the following statements is true concerning simple parallel resistance circuits?（）AThe total current flow equals the sum of the individual currentsBThe total current flow equals the reciprocal of the sum of the individual currentsCThe total resistance equals the sum of the individual resistanceDThe total voltage equals the sum of the individual voltages across each resistance
单选题Copper is often used as an electrical conductor because it （）.Ahas high resistance at low temperaturesBhas a highly polished surfaceCis able to pass current with little oppositionDholds insulation together well
单选题Most conducting materials such as copper, aluminum, iron, nickel, and tungsten （）.Aincrease in resistance with increased temperatureBincrease in resistance with decreased temperatureCdecrease in resistance with increased temperatureDincrease in conductance with increased temperature
名词解释题联结线（bonding conductor）