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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 spaz6;+lx2qdq3u t 9xthe metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the ela23x p lxq+zu9 qds;t6ectric 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 resi39qjawwi9.p cstors are connected in parallel, the_________each resistor is the sam wp9w.ciqj 3a9e.

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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*k9.u+ -br5 ybb6gvzh bf gax(zw,v7j filament wire of a lightbulb causes the filament to become white hot, while the largeruzf59zkjxhv(6 7+b gb.-wbvab ,yrg* 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 LEDsj+9rhf u0ow4a 0 :p2comz,s.e oi8suc. LED is the acronym for which one of the fo uo,ifrh8:zuos msj002ca . 9ow ep4c+llowing 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- b+r3zrg: u 3dusro0y;sectional area A. It is to be placed into a cirb;zdr 330+:u ogurrs ycuit, 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 of the same m1r y( up4maj4mygdf9wix ) x7vj;z8 7caterial. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has redayp4w)z4jycijx9 u 1(8r7m7gvf xm; sistance

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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 tu n6rvg/yqqb 3//twt4 he diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a retn4ru/ vt63yq wq/ b/gsistance 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 abg 9g lbl64dy-xru2 w8nd 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 because of this proces ggbuyr-42w b69lxd8ls?

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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 make a brib kc lglf,(6 ;7buhdz6ghter light bulb. He decides to kfh67,zb6ld; bg(lu cmodify the filament. How should 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 resihra:i f;6qe+vy;k0x bu27 yopstors are made of the same material. The length and radius of e;ap2rfeoxyq y vi06;k+ h7ub :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 resistance R, are connected qt7 ggu.5gti ;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 resistor. This set of three resistors is connected in series to a fourth resistor.” Whag.t gq 5tg;7uit 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 voltmeterpf5 ,vu 6di -fen56vvf in the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The amme 6ff5fp,n5vide 6-uvv ter 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 sh4ze0 .y bqnf/u;*h lbv 6oglp.7;uuyhown to the right. The three bulbs 1, 2, and uf.*eopz.bqnuy h;lg 6l 4u07h/b v; y3 - represented 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 circaog k c0kdfbf(-mu*uag)m)k0)8ie ( quit at the right. If the current in all three resistors is equal, whic(bk *( 0a-)a)kkfif8u)ggmuqc ed0mo h of the following 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 simple electric circuit composed of 5e b ,+4c yzc midl5j+d4/p)nof identical light bulbs and 2 flashlight cells. Whim4e+dbdl,5yfc/piozc )+n 4j ch 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 true concerni,:g,rt8w 9im 3jw5y zus2k gplng the simple circuit shown where resistors R1, R2y9,u gws52z:prigt ,8wjml 3 k 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 f+krg 49goc2 vandY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X an4foc9k v+gg2 rdY 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 resistor in goda4 urp57 w -vab0m4ks9a,g5 seconds once the circuit wamb,pv44uagda wa-7k s r9 g05os 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 resi y*uo,ms q8v6dgd6:)hm ml5c gstors in the following simple circuit have the same resistance, whichqvm) dg5hcu6,d g*8s:o 6m yml 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 6.0 Ω re i( j:sc4h 9f1azmmen,sistorfic:h4a(mmn, 9je1 zs is 1.0 A. What is the power supply voltage 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. gz;;qiu+nle*ev 7b(vvn:oc 5z 18ikd Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6inq (znuvebv87: ck;1 +gevi *z ;odl5.0 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 cm(s, egsla 14wd h p4awvrr/82k5t0cionnected in parallel to a battery. Suppoa wmhr5dpw /li,t( 0 ea 4c4v1srgk8s2se 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. y)ao2(tex,3-ij o bive1i :dsWhat is the maximum value of the current under these condidie i,j13x2a tyoseb()- :viotions?

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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 designed to operatjl -g4ppirv1bsmum :w4;/1mb e at 120 vow14jr ;sb pmiulg:v/-m4 1bpmlts?

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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 throug j).-i0kln0wr +8qzgx1lqidk h a 4 ohm resistor that is dissipating 36 watts of powegjknd.18 x0rkl-)lzw qi+i q0r?

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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 "oo6pswi: j.faz80mu * emy- ;k120 volt, 600 watt.” In normal use, the current mk 8 oo ;apy.e:-fj0 s*imwz6uin 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 circuit dxe;p) h qet-x9)ur889/xbgamc dsb:8b 1m f scontaining only three idenfcd:1xgd;e8 a9xqhb x8pt)m bm/ r u9s8)-sbetical 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 1.0 Ω resistors. Which of the following equivalent3q xtb ;fb*b*l resistances CANNOT be prodq btbl**xb;f3 uced using all three resistors?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.06: Three resistorsig rz87brn 30 .4 lt0grx5jdvb of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produ b74zld5 g.rr0v8bn3jx t rgi0ced?

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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 connect wp(.)gjx; xfied to a battery, a total power P is dissipated in the circuit. 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 battewxjf i.x(p g);ry 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, art17e 6chhnb 4/0of1a wnvbu6 ze connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statementc zhaew70/u h fnt6b1vbo64n1s 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 thac sqg 0,bg/ /h4jepfc s-1rc)tt it has a resistance of 12Ω when operating at 120 volts. What f t-gsr/c) sq/he14cg , 0cpjbis the minimum amount of time 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 f-cfcbwb;9uy-g 2qnk 4 *, twhdlows through a 4 ohm resistor that is dissipating 36 watts of pobn d9ku- 2-;c4gwtbqyhfc *w, wer?

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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 curren0:m*dy+eqwwep (x/lc t when connected to 120 volts. If the price of electricity(e:+wpl wq0x/cdmy* e 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 it0y,n eqj -jqa9 cost to keep a 100W lightbulb lit continuously fyajn,eq q 9-0jor 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 current of 4.00 A through a lig 7tor 9umykawg,.cs)6 yo5*oghtbulb results in a power of 24.0 W associated with the buloo6* .sagcry9t7owm g5,yku )b. 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 wo skl zj.pxy,y*- t3 5sa8g9qtatts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum number of the computers can be operating at the same 5l3x ojst-z.9ptk gqa8* sy,ytime?

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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 fogj+efyg x 5w3r1:(exsur resistors to form a simple circuit as shown to the:efej+ 1wxyxsrgg5 (3 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 batter j 32b .ob;knwvr+.eowy is connected to four resistors to form a simple circuit as shown to the right.nj2r3we okv+ w;bob..
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 resiumajy70*84 aeddav 0k6 vj;y xstors are connected as shown. With the swit*8 ejay4xy07m0adajd u;vkv 6ch open as shown in the diagram the ammeter reads 2.0 amperes.
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 batterb3pbo/ 4cuf7wh)jn 67it)rz hy, an ideal ammeter, a switch and three resistors are connected as shown. With the swibft/zh 7 c) woi43nr)uh6jp7b tch 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 thom6q /lwe,mfa 7- 5rviree resistors are connected as shown. With the switch open as shown in tho7 fv5r /aq-im emlw6,e 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 shown to the right, what is nj,7)3-n fzjl r::ju xshy( tiqc1eo7the equivalent resistance? Assume that all wires are ideal, the battery has no internal resi,z)7h:t-7oj n3n i(f xsclyj euqrj1 :stance, 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 the5b*;ki7/mxhw e+mw;5 qlp ic e circuit shown to the right with resistancee h w/;wke *+5pix;qimm7lbc5s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistodi*;,4r xptkbvdc3/ib gr0q 6 rs connected in a combination series andi3qvcr0bgt*r d;6, x/ip4dkb 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 identical resistorsr6x)gfw wx.tc:/x i 9r connected in a combination series and parallel circuit to):wxi.x/crt6g9frw x 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, all of the bulbs are identical. Wlm( .m/ z pvzem38aiiiqgd :2*hich bulbi aie(m82l.3m*zzgq :dpim v/ will 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 am-*mokr/t bz,h1g kj2x-wyro +meter, a switch and three resistors are connected as shown. With the switch open as showntj-kxh kw2ry-r b,* o1 /mozg+ in the diagram the ammeter 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, an ideal ammeg1 x 1rhhgqam)6s 6ji(ter, a switch and three resistors are connected as shown. With the switcmh()6 hqr 11sa6xgj igh 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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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 an401lgvr 8kps fl.2o s 1xlvj,yd three resistors are connected as shown. With the switch ope 1v kpl,o 820g.lrf1xvsls4jy n 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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