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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 thx7vr ca*ig uupg8.imm2(-*pth a8y -o e metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resispruaygg2iap-.87 h mto*(i cvx-*m8u tor 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 d li2av (a)c r8pacyl9rt6*y-connected in parallel, the_________each resistor is the v9 y8c ldtla*ip6a()2rc ya-rsame.

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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 c,f1 c3 gk(lxiof a lightbulb causes the filament to become white hot, while the larger wires connec3i1xk( g, lcfcted 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 bei 3bq.;goifrc.0w z27x c,y qepng replaced with LEDs. LED is the acronym for which one of the follo3zxecq0w,;b fgpry.c oq 72.iwing 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 arg a6g, p,oua0gwve6 b.ab*de6 ,nikt*ea 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 resistivity of the cylindrical resistdk**t 0gp. aggnawie,, 66 bueo6,vbaor?

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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 hagg5/of / v zgh+3kpyb7s twice the diameter and twice the length of I. If I has resistance R, II has resistancb37ky/g z gvo+h5/g fpe

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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 halfik2csf6byq3e.u; 0xnx u4bl2dv 1 d/ u the length of wire X. If wire X k ;dvl x2 x41yef nqcubi. sd3/2ubu60has 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 resi3yh7 dd0ligs x jo*0(xstor 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 residjlhdx3i s70o* g 0(yxstance 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/ lcvh +4v .tjad/0b lpw:9cki brighter light bulb. He decides to modia d+k: /pt9lvcv.w40/l hbicjfy 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 cylindrm.6 cjo26r d,;wczyqwical resistors are made of the same material. The length and radius of each resisto6yw mcrz6,oq. jd cw;2r 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, eacjdxf,fz -b zfcgj3- z3bf.5:rer1)fj h of resistance R, are connected to a battery in the following way: “Two resist.zc-f :rz rj3gfd5fzfb j,3 1eb-xfj )ors 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.” 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 interntl 4sn+ x-rpd(k+dc.rez/m 8tal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmekx(sd4t+8 le r+/pt-d ncrmz.ter 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 co0dt: op myucp;cw5*se7(f(9d ziz:o b mpound circuit shown to the right. The three bulbs 1, 2, and 3 - represented7zots:yb( o:ip9du (dc 0; c fw5*mzep 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 electriu 1z3u5ircx8m cal circuit at the right. If the current in all three resistors is equal, which of the followz 38 uruxim51cing 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 circyszr0rz+(pwq (8 hwu:o8n)wluit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bul zwl0h+:u8(yqz w r (wnr8pos)bs)
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 stf4z ox(1d 8wjc,j9pun atements is NOT true concerning the simple circuit shown where resistors w 1zj94xpunjd (8c f,oR1, 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. Bv-l z0g evf5i,ulb X is brighter thang,z5 vvilf -e0 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 throughp cwzd ) /m nd,8fn.ufld885so the identified resistor in 5 se,d/fw5ufold8 .s8p md nnz 8c)conds 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 the resistro ld7xh4g ;g:-ez7t-gwpah z/ 2n-v qors in the following simple circuit have the same resistance, which wogwz z7x: o;gh-ae2/ -7tr4-pglqnvhd uld 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 accompanyinl .s)m9ijjpwo40his6 gc; ax4g circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. Wh9 c4hoja;i. )j 0gsxlmsi4w6p at 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, anmu4yqk. spn+6d 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 kn4p ymq6.+su 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 parallel to a batloa2g9zva 5ypy9s q* pyb (t-3tery. Suppose R1 has 2V across it, R2 = 4Ω lavtopy*a9ybs- 5yg 3 2qz9(p, 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 watts53 (:rdc,epcww l;)go1dpzbd and 120 volts. What is the maximum value of )we (,g1c;dow:lcbrp5 p zdd3the 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 lightbulb designed to opers8kw j./0mg mkate at 120 ws0k k.mgjm/8volts?

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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 3hh,s r/j)4/(rznkiyi.l3dq bw j;8wl 6 watwk8)/. bdn3jr sz,; hrj lhy/i w4il(qts 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 wat2 h u pe0gan38ux)/f-obyy x7ut.” In norm -u8b3 hepgyxxnyu/0u)72a foal 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 follouyg8x- bdw 7h/wing resistances could NOT be produced by a circuit contai wb 8hg-/u7dxyning 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 thre3(t++k7op vuchfa pt3 gv1 by*e 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three r va 7t upy ck+ovg(+t1h*bfp33esistors?

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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 vtco qzzu)c3k b/re e3d3. 4v)different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different toue q3v)/3v 4 zb e)d3rczc.kvalues 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 connected to a battery, a total power P is5sbbn75 v n5pu mccv *n8mz4i1 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 n5cuvbn*vzn4c i s b75mm 58p1resistance 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 uav/s(2n)kysh+w*fm connected in parallel, the equivalent resista/ sw (+a*nhsy)fmvk2unce 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 4 n )z2 mn0gvw+shsh6iit has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg z06h+nwv 4sg)2 mhisn 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 resisto gk2xtl6v2):n3jdv oar that is dissipating 36 watts of powvtv6aoj): 3 x 2kdn2gler?

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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 6nl u(,yi-nsy amperes of current when connected to 120 volts. If the price of yu,6 -li(synnelectricity 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 zolaf uta0g.m w+,2)nojmst g-3k l 9(would it cost to keep a 100W lightbulb lit continuously for 1 year lt2z ul fsm a+goj(3wgta.) -m ,no09kat 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 lightbulbjzsoc 2x9 9eb7xc6v+x results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbulbx job+zsc6ve 729 xx9c?

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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 computet; zx)tj83p33kkr kw zr rated at 500 watts 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 atktwp33;krx 8)zjzt3k 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 resisto lbmcn+-/6yli1,v. gqchy ub; rs to form a simple circuit as shown to the right.vn,q;cyyl1hbc-i6+gl. bu/ m
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 simpl; v6lo5chbmna;m)i +pw5 awu/e circuit as shown to the rio;+5/aa;wiuwb65lmhc) m np vght.
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 thre -0xt*gmeex lld xom)wcmb.346fc62pe resistors are connected as shown. With the switch open as shown in the diagram the ammeter reamecexlf txx* -2w 3mdl6 bc.0p)gmo4 6ds 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 w9;iavcrlbv+ j06n3bl8o607g8y4 cxd okkeuswitch and three resistors are connected as shown. With the switch open as shown in the diagram thevl4+ek8669x08c7kvn3 yaori bjb d;o 0 cwlgu 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 swlu*pps.4gk.3 - eidy8syv-cn itch and three resistors are connected as shown. With the switch open as shown in the diagram tpsk-gpuy*i8c4v ye3s .-.n ldhe 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 shoo1 :m:ij b sk+eij(u8jwn to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all threeb8j :o j:(im1 kj+suei 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 the circuit shown to theug ,plj-yu(0gfo+9.q8 z v.il risa-n right with resistansloagzpilnr yuf9i v -,u(8-j q+g0..ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resn91 7djtlvl; jtp -;cxistors connected in a combination series and pajn;1lldtc7;- x9 tpvj rallel 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 fiv h*sqz )sajh r+3-+e2o8 bhwfve identical resistors connected in a combination series and pshah+ jor * +2-qw8vf)ze hbs3arallel 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, al qkndde9(pvu .f9wveie,i1wf .5 e5g*l of the bulbs are identical. Which bulb will be the brig fe5e d9vep quw,gf5(*d9. .enikvi1whtest?


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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 resisto q0jt1zfc3 x7jrs are connected as shown. Witjz3j701 tcfxq h 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 amqq+f6 j*qq* memeter, a switch and three resistors are connected as shown. With the switch op+ jq*feqqmq* 6en 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 and three res4jy-es z,gh w4 5she;wistors are connected as shown. With the switch open as shown in the diagram the ammeter rea,h4w h- zj 4y;s5swgeeds 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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