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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 eleco;ov lzlsx g/+o;o0) ptric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the res;go0 vl;o/poos + l)xzistor 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 parallel4dwv jyj m755y, the_________each resistor is the sa5yy md5w 4vj7jme.

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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 lightb/lfy kaq+bz2 ( 4ttg635npac bulb causes the filament to become white hot, while the larger wires connected to the lightbuglb25+k/ afq 6ab3 (pcynt z4tlb 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 replat9 4 1jfud:gntced with LEDs. LED is the acronym for which one of the f1ft4d njg:u9 tollowing 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 lengtjz;pxu e-*ka 4s y-71h2pjj wk u8hov1h L and cross-sectional area A. It is k xj z uohaujhjw7sv84;*e1p1k--2pyto 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 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 kiawc7d1a+p 3 (jrr5bs8 e7djf2(zcathe same material. Wire II has twice the diameter and twice the length of I. bd 8ak i7p djc72carfw (s3 5era(1z+j 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 same material but has twice the diameter and z )s)xenbo0 n/tbb-s; half the length of wire X. If wire X has a resistance of R then wire Y would have a resistanbz )e ;tbnxn0/)s-osb ce 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 r. Thisn ee7*3,yft+7sieg i s piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of thi ,nig*+f7s iye tsee37s 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 aowfj acj*,c*pam590to make 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 produce more light at a given voltage?5fa cw* a0,ocjap9 *jm


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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.07: Three cylindricmp:uu5s 8v,mx/tw. g tal resistors are made of the same material. The length and radius of each re m.wt5tpus, 8/xu:gmv sistor 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 cohc5 rstwp zc ;i8,38(* ni n8.uybrosynnected 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 connec53r.*ccs8ph in8sn b(;oz ,i8yyurt wted 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 2v6nyrs+6xm x :4lwt hinternal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm:xl+ny6x mt2vws4 6hr . 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 tm6l*whobz1 w-- aef9h hree bulbs 1, 2, and 3 - represented as resistors a 9-ehoh *wmw61fzlb-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 electrica zu r- fzq*41l:(eqpizl circuit at the right. If the current in all three resistors is equal, which of the following statements feq*rq : zzu14zpi (-lmust 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 jfc+tcz8 6lqwmy4oh hda 954 ;electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulcjhq64 +dfl h9;ozmaw4y 5t8cbs)
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 conr05 lod;3n ypth 4*v(r*cfncvc2bnl6cerning the simple circuit shown where ret l04(c53 n2hp nv6**rcfrn bydo;lvcsistors 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 andY are connected in series to a battery. Bulb x;t*9:u:p t ugxn,e3owpjtu : X is brighter thtpo*t, ;9jtu xu:pe:un3gx :wan bulb 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 resistor z.v h rtf,cuvn,i.j-/ in 5 seconhf v., ziv tn,j/.r-cuds once 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 thvwov s-edh/l q (o07n+gj/)qd2 rrroh9a8)xqe resistors in the following simple circuit have the same resistance, which 9elvx7hr)hod +0d (g8 woqs-rn/2qq/r vao)jwould 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+l2wu onb m3w,m7j)a j resistor is 1.0o)mn, + ajmjuw73w2bl 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, Rs an.;v 5m1 :0oexyoce2, and 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 6.0 W of power. Wha1e:; 5n v0ac xmoo.syet 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 connected in .su(1 srtml y4z( aiqi6 ;l8z(qgqn+hparallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is;tg((s8l .6qa(m 1hilr +ziz 4ysqnqu 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. c i;u-sgrckq 6 92cl1t What is the maximum value of the currentcc1gl2c 9;-uq t 6skir 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 resisb022jw0pla3l5ru 0tlz + shs g (r8ugutance of a 60 watt lightbulb designed to operate at 120 voltlg s2zr(0ja0b8h g5spruwlu+u 0 l 23ts?

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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 dissipating zq4f(jxes48v 36 watts of po xezvq4jf8s 4(wer?

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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/k o,u*v/ttl h "120 volt, 600 watt.” In normal use, ot/ vtk*lu/,h 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 resistancesu mvb brb8g7v*h11 w,p could NOT be produced by a circuit containingmv8rh ,bugb1pw1* b7v only three identical 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.zc7d( +5:kclqxf sa2n0 Ω resistors. Which of the following equivalent resistances CANNOT be producedns( kd:7fqac5+ c2 lxz 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 resistors of diff (kaan2w++,8 xs4)dftuk1twr vi 4giverent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistanvis)4gw(dn + rk1+, 4i2kfwtu8aa vxtce 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 ths1k7e ( t3daaotal power P is dissipated in the circuit. How much total pesd3kah(71 t aower 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 and R2, are connected in paradzwz**qv ((k;yr cr w8llel, the equivalent resistance of the combination is 5Ω . Which of twd*cvr*(q y( ;kzzw 8rhe 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 s2 drcym3 *fwm1 xr,sh.uch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time thatr m21*.s myfh3crdw,x 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 ohw-bjp c-5zl)a m resistor that is dissipating 36 watts of powezj cplw-)ba-5 r?

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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 c wfc- cil1.giam34:imonnected to 120 volts. If the 4 wf i:m-cm1cgl.a3 iiprice 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 contm,u shi2ni j;b3i2*o yinuously for 1 year at a rate of bi jioh3y2 im,*nu;2s$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 in a power of ek gqy :c3)co+24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbul+ecg3co:k y q)b?

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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 f.gx0liw79ln-qpvpfi* 9n1q6 a pcs7watts 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 computersl-9vxs*ppf7g091qn cpa. 7qnil6 if w 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 rewc yq* v3)p:) g1k9of1fwaduy sistors to form a simple circuit as shown to the qu :y gkapowwd c )9fyv1f*13)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 resistors to form a simple circuit hrw:6 t( y1in+:h.x6wl bvfaaas stvy nb xw1 :rh6hfi6:a+.wla(hown to 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 resistors 2d 9fq(r ppzx4fzfpv +olo;1 *are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesx+zff 4;9(* d1rz2pf vlpoqpo.
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 resistor cd uzm+bd yr1914ht eo7vr+5cs are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amper71 er+cd5 mtb9uhvoy 1 z4+dcres.
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 ankni1;du+g 2ek23ej-q s;qxh ad three resistors are connected as shown. With theuh+qg s; 2qkna;1 -ed3 ekx2ij 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 shown to the right, what is the equivaa1vs8.( 1ermaeo :jld 1yqd8clent resistance? Assume that all wires are ideal, the ba.er8 s jav:l1 doc 1ea8m(1dyqttery 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 rl2-co px7y / :*a;c4 bx*inef kyuo4huesistance of the circuit shown to the right with resiscn/-*fo2y 47;poa u yhixueb 4ck x:l*tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 bel 0 rgt,gg(iggq64+lb)lwcs0r ow shows five identical resistors connected in a combination series and paral( +t s)b0i0grqrg cgg 4gll,6wlel 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 sho uvo:2)khmq4;0k zcgi ws five identical resistors connected in a combination serie;)u:gzom4vikk0q c 2hs and parallel circuit 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, all of the bulbs are f,y1g-c3 qtsq 7t,l fhidentical. Which bulb will be the bgfty3q ,c ql- ,1tsh7frightest?


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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 id9munmr(/m d.eylc (v1at(b) zl1q; qvoaw;4deal ammeter, a switch and three resistors are connected as shown. Web la1(v4mqmdrd (;)o(nt yu qalvzc9.w ;/1mith the switch 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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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 resistors a mn+g4q-ketji lx1 ,457fq z)vqh;aotre connected as shown. With the switch open as shown in the diagram the ammeter rea5qi, +g hjv 4kax-)tz 41nfme7;qqltods 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 ammete1ev)r 1p-oy+jftks47q2g +/c p 2cnsx) yd wpgr, a switch and three resistors are connected as shown. With the switch open as shown i wgdyo7cx/ey nptkv)s1)g+ rsq c-p 4 1p22+jfn 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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