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习题练习:.Resistor.

 作者: admin 发布日期: 2024-08-22 15:34   总分: 50分  得分: _____________

答题人: 游客未登录  开始时间: 24年08月22日 11:12  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.09: In the circuit shown, an electrr yru* paba,i/4,udif1 .xic.ic current exists in the metal resistor connected to the battery. Which one of the following choices besti,u1y. x ibrpcaudr ifa4,. */ describes the direction of electron flow through the resistor and the direction of the electric field through the interior of the resistor?


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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.06: When any four resistors are connected in parallx2*tw p+goszutru )0;sq4;gzel, the_________each resistor o z2 qz04+g u;ug;xswtr)tp*sis the same.

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.33: A current through the thin filament wir sm-6;rml;p xyfvz;ro2 u w13we of a lightbulb causes the filament to become whitemz- pxulw6;1m3y ;2;rovfsw r hot, while the larger wires connected to the lightbulb remain much cooler. This happens because

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.08: Some standard household lights are being replaced with LEDs. LED is t0so9 dm/9orfdo 4tuz ;he acronym for which d0d9toos/f4 mrz uo9;one of the following choices?

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5#
 
多选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.16: A cylindrical graphitf60rxl 75gs +yj(itjse resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that the new length is 1/2 L. What is the ratio of the new resistivity to the old resistivitl7gj0 ytx+r5 6fjssi(y of the cylindrical resistor?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.20: Wire I and wia0y.q vn:5 jsl84ubu-ao ggk/ y/k/j wre II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resist-q0 n.o y5a/a/ lk4 w:ykuvgbjg8u j/sance R, II has resistance

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.31: Wire Y is made of the same material but has twice the diameter and h jk sj6*c(s-7t v kv.t5vbnj8balf the length of wire X. If wire X has a resistance of R then wirekjs*svt7 vj-68tb .c kv( j5nb Y would have a resistance of

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.23: A cylindrical resi-b ys4wg58 vjam,kn3vstor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becgykba 3m,v s48w 5n-vjause of this process?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.27: A junior Thomas Edison wanthv240n pkuh/qs to make a brighter light bulb. He decides to modify the filament. How should42 0hhnquvp/k the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given voltage?


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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.07: Three cylindrical rd9e4v mas5-x mvo;gw2 esistors are made of the same material. The length and rag 5doxwmeva 9;2sm 4v-dius of each resistor is:
Resistor 1: Length L, radius r
Resistor 2: Length L/2,radius r/2
Resistor 3: Length L/4,radius r/2
Which one of the following choices correctly ranks the resistance of these resistors (R1,R2,R3)?

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.22: Four resistors, each of resistance R, are connected to a battery in thex1e n 4ozd8h)g(ry)b g following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor. This set of three resistors) bgh re)ozd14(nx gy8 is connected in series to a fourth resistor.” What is the equivalent resistance of this arrangement of four resistors?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.35: The voltmeter in the accompanying circuit diagram has internal (mp b/tl6cc2l resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltp 2 6lt/m(cbclmeter reading is most nearly:


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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.37: Consider the compound circuit shown to the right. The three bu3g*gd (dj55 ppxxg //dmq xa0vlbs 1, 2, and 3 - represed/ ag*d(vg 3dp0mx/j5 xqpx g5nted as resistors in the diagram
- are identical. Which of the following statements are true?
I. Bulb 3 is brighter than bulb 1 or 2.
II. Bulb 3 has more current passing through it than bulb 1 or 2.
III. Bulb 3 has a greater voltage drop across it than bulb 1 or 2.


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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.30: Given the simple electrical circuit at uay8 0umkj4:z the right. If the current in all three resistors is equal, which of the following statements must be truekazm 80: jyu4u?


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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.37: The diagram at right represents a simple electric circuit composed :9tl 7bvrv5mfdb0b e2 of 5 identical light bulbs and 2 fl bvv:m lb2de09r5t 7bfashlight cells. Which bulb (or bulbs)
would you expect to be the brightest?


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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.03: Which of the following statements is NOT truq of/vu 3 fb.zhw s4eab0*dt80e concerning the simple circuit sw.*b/ 8f o4 dau3 fb0vtze0shqhown where resistors R1, R2 and R3 are have equal resistances?


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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.29: Two lightbulbs X any7af46f5o(zqhylhd 5 dY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the samq5(7fo l5 hfz4y 6ahdye battery, which one of the following choices best represents what is observed?


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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.34: How many coulombs will pass through the identified res3usi-rr pd:r*o krpls-w02pf93clm. istor in 5 seconds oncl3: pd9 p ru-2-rpws .ofs3kirm l0*rce the circuit was closed?


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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.23: If all of the resistors in the following simple cirnq 9lp*( xj9zhcuit have the sa *(99xqznj hlpme resistance, which would dissipate the greatest power?


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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.34: In the accompanying circuit diagram, the current through the 6. a6f/c0 yqgo))*tgvk c0 Ω resistor is 1.0 A. What is the power supply voltag f )c/vt)*ga ogc0kq6ye V?


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.27: Three resistors R1, R2, acvj.cntc(w1gn9 mn(.4o ii1 r mimw)1nd R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 1. jwm1ini v1occ(i 9 )gmwm.(nc4tnr6.0 W of power. What is the voltage across R3?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.40: Three different resistors R1, R2 andR3 are cob7j.( 9ykgqdy njy4-ynnected in parallel to a battery. Supy ny4q kjy.7jgd yb-9(pose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R3?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.13: A heating coil is rated 1200 watts and 120 volts. ildw)ytq:*16tti 1yg What is the maximum value of the current under theseq6lw t1)y i*i1ytg:dt conditions?

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.23: What is the resistance of a 60 watt lightbulb desi 2 bg(/gxs(ymigned to operate at 120 volts?(g/x ms2i(gyb

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.09: How much current flows through a 4 ohm resistor that is disspa552.t,8osbu9 )pgj ecnaghipating 36 wat,t eas pcjgpa9b 28h5)5o nu.gts of power?

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.21: A household iron used to pressmy(hxjw mgcq8*t 7 *a.(w:p:anfb yd 4 clothes is marked "120 volt, 600 watt.” In nor(:*a7b nxq4wh (cjyt*.8f mypwagm:dmal use, the current in it is

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.05: Which of the following resistances could NOT be produced by a cirv9baooe-p+ x (cuit containing only three identix 9aopv+(oe -bcal 6Ω resistors?

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  94.37: You are given three 1.0k+ vwkqsx yjnr, .7;pz.n r)o2 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three re pk2 x nqkozw.)r jyn7rv.;s,+sistors?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.06: Three resistors of different values can bef +l6 ;eo7djdh+d-p z+g, kz*dzir fe6 connected together in different configurations. If all +ip6f;z+hrl7 k djgozfd ed6+,dze*- three resistors are used in a circuit, how many different values of total resistance can be produced?

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.35: When a single resistor is connqa4g fv54v ,lxected to a battery, a total power P is dissipated in the circuitvv,5af xl4q4g . How much total power is dissipated in a circuit if n identical resistors are connected in series using the same battery? Assume the internal resistance of the battery is zero.

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.16: When two resistors, having resistance R1 5ewlz vwf 9hhoh : 35ep,gzp8*and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which o5p,3:*eh 9wlh8 vgzep5zf who f the following statements about the resistances is correct?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.46: A hotplate is designed such tha2 uj pn8im.r5(yju6,-mlqit lt it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warul58rn (q,jli 2m-m up t6jyi.m 0.45 kg of water from $15^{\circ}C$ to$85^{\circ}C$?

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.09: How much current flows through a 4 ohm resistor that is dissipating 36 wa q;ycm(yld/ni c:(kd2 tts of po:c2;qiy/ldck m d ((nywer?

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.24: An electric heater dbg rxd+5 58n9n gj;uy(+ rzvurraws 13 amperes of current when connected to 120 volts. If the price of electrici by5rrdngv58;(x+j9 nruz+guty is $0.10/kWh, what would be the approximate cost of running the heater for 8 hours?

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.05 Approximately how much would it co8l,* b.z;np6j pyt 3lmp/ckwost to keep a 100W lightbulb lit continuously for 1 year at a rate of l8*cp ; y/.b3,knljpw zmp6 to$0.10/(kW.hr) ?

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.09: A constant current of 4.00 A through a lightbulb results ioct (vf.)b5w fhujj4ye os( + 2okvf*,n a power of 24.0 W associated with thes.)c (*jovfouev,+t4h (f w2byf5k oj bulb. Which one of the following choices best represents the resistance of the lightbulb?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.10: Each member of a family of six owns a computer rated at 500 wath84yj9tr,wmtnb 4qs) ts in a 120 V circuit. If all computers are plugged into a single circuit proth8 wjy4)sq,t4rbt nm 9ected by a 20 ampere fuse, what is the maximum number of the computers can be operating at the sametime?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.16: A 9-volt battery is connected to four resistors to form a simple circl f7*phi-h38lyrt:dhd2/ s u),s naujuit as shown t,fhd2hsar8*u3lu 7- ij t l/np)ydsh:o the right.
How would the current through the 2 ohm resistor compare to the current through the 4 ohm resistor?


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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.17: A 9-volt battery is connected to four r ccvidpo)z:.*+ia+6z 6mn.hk3em l xvesistors to form a simple circuit as shown to the righl:npmo+.kzd h*x.c 63e 6vcimi v)+zat.
What would be the potential at point B with respect to point C in the above circuit?


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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.21: An ideal battery, an ideal ammeter, a switch and three resis4 i(a-s qhnl9ctors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampel-49an iq sc(hres.
With the switch open, what would be the potential difference across the 15 ohm resistor?


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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an idealt6oull3 ei j,1-boa )l ammeter, a switch and three resistors are connected as shown. With the switch open as show1luo 3e ,ibl-a)o t6ljn in the diagram the ammeter reads 2.0 amperes.
With the switch open, what must be the voltage supplied by the battery?


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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammeter, a switc6f(biql;ek 2f h and three resistors are connected as shown. With the switch open as shown in the dilb;fkq 62( efiagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit sho0adj3j 67a 8cn s4xvhown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical r40 vs 63acjanhxjo7 d8esistance R.


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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.07: The equivalent resistance of tko)frn 5.mj:jhe circuit shown to the right with resiskm:.o)r5f j jntances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ and $R_3= 2.00Ω$ is


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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.20: The diagram below shows five 2(sef v5if l+h rkvv*6identical resistors connected in a combination series and parallel circuit to a voltage source(lsh6+ vr v*i5effvk2.
Through which resistor(s) would there be the greatest current?


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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.21: The diagram below shows five identical resistors connectedd-n(fg*r, eb d in a combination series and parallel circui,df erdg*n-( bt to a voltage source.
Which resistor(s) have the greatest rate of energy dissipation?


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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.29: In the circuit diagram, al5oa 9ke.* s,1stzaakh l of the bulbs are identical. Which bulb will be ozat 59.k*e1sk,s haathe brightest?


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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.21: An ideal battery, an ideal ammeter, a swit cb3hyhs:dksv )(.3r lch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetercyr v (.3d)sls:khh3b reads 2.0 amperes.
With the switch open, what would be the potential difference across the 15 ohm resistor?


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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, au pqr-8f,y+x ajfbb;.n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. 8;,.j+bpu -rxbf yqfa
With the switch open, what must be the voltage supplied by the battery?


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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammeter, a switch and three ipwu /2s8ov3ymij; /r resistors are connected as shown. With the switch open as shopm2/8 ry/ 3;vuwjs iiown in the diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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