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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 resistor c:.)o .y 7daycx9s 3rwcra+dlponnected to the battery. Which one of the following choices best describes the directi7waocca y r.p+y: 3dl9x). sdron 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 conubiue4*3:)oqv8 +gk vzu;wm: q yu2we nected in parallel, the_________each resistor is the saeby g8*uu:wkz v+uu:q 2q;3)iw4oe vmme.

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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 vxkyf( / y.1chthe thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This havxyhyf(./1 ck ppens 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 hcd328/icroa o ousehold lights are being replaced with LEDs. LED is the acronym for which one of thec3dira co2 o8/ 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-sectional a/amzls x3 p02s.cg4g.;yvq dcrea A. It is to be placed into a circuit, but it first must be cut in half so that the new length is 1/2/4d;c3 z msx.c0ypg. l2a gqvs 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 material. Wire II has twhpr ,; nxl(p/.:obx arice the diameter and twice the length of I. If I has resistance R px /ap:.l,n bo(hxrr;, 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 half gc5x k xtts ln4,95amw2q95vithe len,kit 9qvx 5sw m9ct55l2xagn4gth of wire X. If wire X has a resistance of R then wire 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 resistor has length L and radius r. This piece of materiko, iqlt() zm;qg)0+ujepf-g al is then drawn so that it is a cylinder with new length 2L. ez,(m )) q+gko ;f ij-gtup0lqWhat 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 make a brighter light bulbgu 7cpij .gu.:. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce iu:c pgu. 7jg.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 same material. The length anqap- id+ ()+jsk7)1rrcx bsk3 got3 wpd radius of ejpgdkr(s+ kcr3wiat 3+q 1s ) )xpbo-7ach 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 resist t+wj 0n3lc0aiance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resi3alj0+ t cwin0stors is connected in parallel to a third resistor. 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 accompanying circuit diagram has internal resisfvf;y05 q 0pietance 10.0 kW and the ammeter has ivpie5fy0fq ;0 nternal 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 3fa4vpemo 9n *n54ww3ing)uq lbc 93xbulbs 1, 2, and 3 - represented as resw4wne qmi gl9v4 bc3 3*na n)3px9of5uistors 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 simpl5d28 y cmrzb:xe electrical circuit at the right. If the current in all three resistors is equal, which of the5z2dmc:xr yb 8 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 represe*(2cja .tke )1ihns5 orhki3 dl:yi0cnts a simple electric circuit composed of 5 identical light bulbs and 2 flashlight r(i)ico eshak hl25n.d0j c1: yt*k3icells. 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 fo ujp uc;bkhz q9(/8)5p wle/zallowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistancesepk/8z 5z aqw)jc up9;l/(hu b?


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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 col*zqu7lu7 nwa2-l/v jnnected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY aj7l2-l*z aunqwul7v /re 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 identifdi7se/ +8h(gg*+ mzsrjolx r*ied resistor in 5 seconds once the cglm r*s+8(ig h+s7*o/r e xzdjircuit 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 4fm*v5:bw +p e.gj9az031nun:wyt icdpxc 9s simple circuit have the same resistance,nvm:19+5 p tzbuacscdywe*fg9n :i34xp0w.j 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 diagra.:tvlf4 4p20wke mjpam, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage 4ak:.wfptm l40v2ej pV?


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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 connectedr /eud6i 3c13tnjhnwmiry(o ;a.c*b( in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3(rm uh3c/ot6icb* ( .j3;1rwani en dy.0Ω, and R3 dissipates 6.0 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 connected in parayv 56vq-3bu-i*x ofe nllel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in xy*u-o5-ei36v qfnbvR3?

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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 andp/la avke:vxkm4c,tv-g zex6bwc0)k ((m8k) 120 volts. What is the maximum value of the current under these conditic0,a/m: em ebkatw4)gx) lv k x(vvkcpz6-8 k(ons?

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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 operate atkaj.bvf, lhci03 r;p7t5q7t c 120 v0lc3q k. 7h;cfjitr,tbv5a7polts?

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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 7tc 4l4 8tlhwmthat is dissipating 36 watts of powetlm7 8lw4 t4hcr?

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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 pre o(q*nk v*us k/ps.c9ov5 (ihdss clothes is marked "120 volt, 600 watt.” In normal use, the current in it nu*/k9ip(. *svk(qvdocoh5 s 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,ws.bs9ls31z6um utcse v23 x produced by a circuit containing only three identical6 u2wmsst9xbu c3zs lev3.s,1 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 fp9,t k+o2iyh.hfdeh.,i jy2 aollowing equivalent resistances CANNOT be proha2f 29iyh,khy +id,e .o jt.pduced 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 different values canjj ao ,m1)3h(m5qlr um be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total rem3lq(ahm m )jj51ruo,sistance 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 po*i;h j.b pzvk+n +;sconnected 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 battery is bs inzj+;;.vk h+op*pzero.

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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 resistay x3m0r,/ksv ance R1 and R2, are connected in parallel, the equivalent resistanckmavr 3,ys0x /e of the combination is 5Ω . Which of 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 that it has a resistance of tkunsgue8q. l5z (m5912Ω when operating at 120.5(uu5ments l9gkq8 z volts. What is 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 flows through a 4 ohm resistor that is dissc 5wi2rn1bx3gok :1f2vizo 7b ipating 36 watts of poweko 2 :gr7x1 ibfic1bz3wno5v2r?

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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 r.nncfzlm*7e2) )z tt dp1v:oto 120 voltml efcn:p2)t7 dor1vz) n*zt. s. 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 howm kmp hf , cvaw3nn1(j-v:b76t much would it cost to keep a 100W lightbulb lit continuously for 1 year at a n,h3k7 amt-jv1bm (fpwnv6 :crate 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 lightbulb refb;ux e;gx oy30z-e15fp(j g)tqvfo, sults in a power of 24.0 W associated with the bulb. Which one of the follow;u 0tj1qyfvpxexb3fo ggfo( e );5,z- ing 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 pswh(;vaet 3vpf; ++q a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit prot qp+t(v;hsaf3wpe;v+ ected 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 resistorsu;iigwdm7. uv/ 6)fo k to form a simple circuit a f)o6 gwkuimd;/v.u7is 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 connecte2fy/9ial rtx0 d to four resistors to form a simple circuit as shif xr2y/tl0 9aown 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 anme(6z 43jq rui xkkb4 7z3;ctad three resistors are connected as shown. With the switch open as shown in the diagram the ammete4 ;z4 b(tjekzaukq37 xm3r6 icr 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 battery, an ideal ammeter, a switchf 5*x+t wq1e:, w+fimpm gajm(rqb/g1 and three resistors are connected as shown. With the switch open as shown in the diagram the ammfm qqge +x,5(w11*fm:a / pb+jgmtriweter 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-sn/0z8d v ueumgi+o+h /z oh2 ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the+gi shnezhoo8-zv+ m /u0ud/2 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 equivalent resistanc :-rkxn vdw k k;mnht:4g1vt2;e? Assume that all wires a: n4;v:ktv-gnkm1 rtd kh;2xwre ideal, the 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 89ral:ps 4vabof the circuit shown to the right with resistv b9pal: ar84sances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 i.i56h2vbe i 5a pm-gyydentical resistors connected in a combination series and parallel circuit to a voltage sourch-i giy6ev 5y2abm.p5e.
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 idensx5r. 6 jyl73:imideytical resistors connected in a combination series and 3s imyr6ej.5x: 7yldi 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; :20mm;h0b idf asapo, all of the bulbs are identical. Which bulb will b0ami;s m phab2;dfo0:e 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 switch and three resistorsr2kbxyv gk /d-.k 4w8b are connected as shown. With the sb4bkkvdgyr.2 8-xkw /witch 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 resist3j8d)j+ qh8okf qei q/a c3t9rors are connected as s3d)+8qj ao9ierhq k83j ctf q/hown. With the 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammetei4xql f.y5vf:r, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammlfv5y:qi 4x.f eter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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