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习题练习：.Resistor.
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 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 electric current exists in the metal resiskd3 f gg dh)kb7ya9;b6ie9b( fv ;;oqstor condkq6g7 b3;yhe; vd (bg;bi s9f)k9ofanected to the battery. Which one of the following choices best 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 connecqq4om/o0:9xc kb/dmnn n8 *gmted in parallel, the_________each resistor is the sam: mm8q *km9ocqgo n/ dnnx/b04e.

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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 wire of a lightbulb catt qp6 9c d;sp.zo03ptbz9id8uses the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happe09c8 zqdz tio;p.9stp6tbpd3 ns 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 repla;mn777r 6ze x6cnolj/3f* 0u mivxu wxced with LEDs. LED is the acronym for whichojux lf7z/;6cm0en7 x*mw76vi nu xr3 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 graphite resistor has length L and cross-sectionggrz)vb xsao: x5*t4ybt)ybfu.6d /;al area A. It is to be placed intoy* x):a xzofs5td)4vg;tg.bbbru/6 y 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 resistivity 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 wire II are made ozsf0,)x +5qq.gzxf qr f the same material. Wire II has twice the diameter and twice the lengthfsfx0q.)5z q+ z,xrgq of I. If I has resistance 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 satxyg:vrg, *b (1jty 9xme material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a :v jtt1g ,x9*bxr(yyg 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 resistor has length L and radius r2l2cvuq7ku ry *b19c l. This piece of material is then drawn so that it is a cylinder with new len*rl 9cvlukqy2u1b 2c7 gth 2L. What happens to the resistance of this material because 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 wants to ma-pucy om /vs/xil 6 *s;zh)c.wke a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb pro6ilvs) .*/pms/xy;c- cwuhzoduce 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 resistors are made of the samefmztw6ylp7 ,j;y8:b7cr6ppt-.y b 4a-iq udp material. The length and radius of ecmflt,67d pz :wjqp8;-tb yp-b64iraypu7y.ach 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 res)5+pz tqliq1f istance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistoqqz+tf )15l ipr. This set of three resistors 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 ac:th* o4lsr .2are b5ybcompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internarrtbhls 4oyea*: 5.b2l resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter 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 bulbs 1fj--af lyu v:v(-e+b u, 2, and 3 - represented as resistfub (e-:-y vjl+uv-afors 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 the righvwjk 8r0dmk,,yr . sn4t. If the current in all three resistors is equal, which of the folm rysjdn04k,kv.rw ,8lowing statements must be true?


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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 simplee8i2d5 j;yxru 3uf; hr electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbsjyrf 38er; i2dhu5ux;)
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 statx./ uutwmm u3/ements is NOT true concerning the simple circuit shown where resistors R1, R2 and .t muxu3 wu//mR3 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 andY are connected in series to a battery. Bulbsi :p(d3b7a-rkuuo w.zw :q/n X is brighter than bul:w qodn.sr-aip(3u /w:b ukz7b Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the same 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 w8 *xnn: w;0c7y// ah pvltwkpresistor in 5 seconds once the circuit was closed?0*c7p8/p /;:yn vhkwxalw tnw


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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 thygbs r)mcw6 yg i39t:-e resistors in the following simple circuit have the same resistan g6 9y tcmiw3)b:grys-ce, 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 civt-3l;k9jjq ircuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply vo3kt9 -iv;jlqj ltage 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, and R3 are connected in series to a battery. vk0vs2s6bun+3* kgr d Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6vv3 6*nur+2kdk sbg0s .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 ; )k 6dkdmvri sdzl5*:connected in parallel to a battery. Suppose k*5d) r6d ;sziv klmd: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 1205 qz/iwl0( prc0 watts and 120 volts. What is the maximum value of trwil(pq0c/ z5 he current under these 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 lightbulk8-v w4pyplp v0)mkk g7)w1xmb designed to operate at 120 voltswpp8)-y 4vxv wkg m1k 7)0mkpl?

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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 thr1r(te, .crq ;2vax1d0pdabxc ough a 4 ohm resistor that is dissipating 36 watp (reqt1,dabrxca ;2. 1dcx 0vts 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 press clothes is marked "120 volt, 600 wass+hnq nsse+ jz-;my58 iw, x,tt.” In noe,- , +ss smyq;jhzni5+nx8swrmal 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 Ny/muba rtns- *uh6f35k 8dwev8b;/ t z7 czp0tOT be produced by a circuit containing only three identical 6Ω zn*yk /br;fd5sbm 78u/w ttzv3c0 8-up6 htae 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 1.0 Ω resistors. Which of the foje k 6lh9/jwt:llowing equivalent resistances CANNOT be produced using all three resist6ht jl9ekjw/ :ors?

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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+fl p6so x;i wo24-6sjrp3dgf different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resrfi 4 6wl3sp fg;psxo6d2o-j +istance 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 connected to a battery, a total power P isk )ys*6; ib yzgxzsp3( dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same batteryyypk sbzsx zg(; *)3i6? 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 and R2, are connected ug5mcbbsxis5 ;, al7 ;in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correcti5bxbl;sa m,u cs5;g7?

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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 that it has a resistance of 12Ω when ;cc--skg :7. gvzwy fgkoi6 j(operating at 120 volts. What is the minimum amount of c-.v- csjg7gwi; zgk(6:yfkotime that it would take to warm 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 3jr:sws8)h0zofu/5ea70l q wt ,sn (t g6 watts of ,:ttr) segsla hz(oq0 u5wfs j8w7n0/ power?

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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 draws 13 amperes of current when connected to 14 cgtma (l,cb7vz0f9gw5 ge* r ro0p7a20 voltg *fa5p c7lgemv0cra7r,0tbg( w9o4 zs. If the price of electricity 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 cost to keep a 100W lightbulb lit cont;a23sr.tmq i 54gndx) ma gsf;m2dj* hinuously fsfsgdgjh qrt m ;)di m*4a53an2m.2x;or 1 year at a rate of $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 cu0rmksu ; enz0b,fb**grz)mx,rrent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents thezb mb)k;mxrz*,eu sgnr 0,*f0 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 watts in ao **v(lpnhb )e 120 V circuit. If all computers al(ebvon*) p* hre plugged into a single circuit protected 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 ci j 86arxzlztlg.9t) 9xrcuit ast9az g98zr6t) xxl.jl shown to 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 conne f.e:gsgm:eq9gfy 3((bs/i v(qv /wqscted to four resistors to form a simple circuit as shown bs3esg(fq m/ey/ .( gw (fq :vq:i9svgto the right.
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 resist4cm, zxjt k92z1wn5wvors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesc,2w zzjvx1kn 945tw m.
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 ideal ammeter, a switch and three resistors a wr50--myy ekpre connected as shown. With thwe50pyr -k ym-e switch open as shown 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 switch and three rogv,ym vz hof 5jbw-e72k :;fc8zj/0wesistors are connected as shown. With thez gz,y; /8m25jw ob:fowh-f0 7jvvkc e switch open as shown 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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit 77mz2id.tm, )uvcdb 2*nuceb shown to the right, what is the equivalent resistance? Assume that all wires are ideal, t)b2 v ,dbd umt2e7 z7mc.ncu*ihe battery has no internal resistance, and all three resistors have identical resistance 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 th3 og6irymc:s:v t7 ;uve circuit shown to the right with resistanc mv6otvr: :;cius y3g7es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identical resistors connect7/ /olms:r cheed in a combination seriese socrm7:l/h/ and parallel circuit to a voltage source.
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 identicpf 4hs.ohp, ay9g*gd. al resistors connected in a combination series and parallel circuit to a voltagefdp4h gyspg9h.o *.,a 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, all of the /up;1 elj d,aobulbs are identical. Which bulb w/aol 1 e;pdj,uill be the 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-)ex xo4 td2+1uso-tcrgmvn 3 ch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0d t ose-gu24rnc ox3- m1)t+xv 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, an ideal ammeter, a switch and three re/l ;yssek3d:zah .i3esistors are connected as shown. With the switch open as shown in the diagram thi. kleeh:;zy/ ad3s s3e ammeter reads 2.0 amperes.
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 resii4s+ f*54drpk)lox gvstors are connected as shown. With the switch open as shown in the diari v*+ok4d fgx4)l5s pgram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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  • 姓名:游客(未登录)
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    总分:50分 及格:30分 时间:不限时
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