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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 showne ,dkaejmu s.v7j1 0l;, an electric current exists in the metal resistor connected to the battery. Which one ; ek.j 0s7vdule,a1jmof 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 conneb2mo-21- loxhdz2u+ 3a qr gdhab. rx4cted in parallel, the_________each resist 2uxlab.rz ohhomxdb132a -dg4 r2 q+-or is the same.

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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 causes thlzym6xoh)t 2xu2z y+ nm8cx(2e filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becaz22xu)hco(my yt26nxmz l 8+x use

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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 LEDs. LED is iw6k;n g mi2.sthe acronym for which one of the fwi.6mn ;gi sk2ollowing 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 grh g8,y ra)l6kdaphite resistor has length L and cross-sectional area A. It is to be placed into a circuit,lgad8r6, )kyh 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 mad pywcz(nt,*s2 v,vlr.f,:cc,j do .j6 plrje 8e of the same material. Wire II has twice the diz,tjr8pp o .*sje,ly, vfcl6c:n(d ,v 2r.wcjameter and twice the length 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 same material but has twice the diameter and ha5cd 2)0rvuoi c8 f+owelf the length of wire X. If wire X has a red f2ci+o w8uv ce)5or0sistance 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 i )e s; exe4-qf5no7ezresistor 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 resistance of this material because of4z5) exeesf-en o;7qi 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 bulb. He 2pge tlex d1e/1bd.-vdecides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a give2d1e1e- lgpvedbt/.x n 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 resi *daii aslp 6;0+z83dw-nuc icstors are made of the same material. The length and radius of each rdnz+lu*a86dcaii p 0;w3 - csiesistor 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 to a batto 8fu) :zk2vhiery in the following way: “Two resistors are conneck8 uo :izvf2)hted 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 internal resistag1n)vdc46 dc:h7xt x nnce 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nea )nxnh cdctx d1v:g746rly:


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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. T:g2:end2kyz l:)s ka :yvgsf qu;2(cwhe three bulbs 1, 2, and 3 - represented as)qggv (y:::2fyeck2w2n lz :k ssa; ud 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 circuit at the right. lfbwi.*1rw3csqz6g t:h t -5vIf the current in all three resistwli*q3sr5f: z hct.wb6v-1g tors is equal, which 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 circu9px9,v f d;slzit composed of 5 identical light bulbs a9 s9,zxfld pv;nd 2 flashlight cells. 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 following statements is NOT trq.wr f1zns vfve6-*,cue concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistancz nr-*q.f 6ces1vvwf, es?


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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 andt9;7j r, b.d,e,z j yk6nu0vtoqwp:iiY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each o zo7iwd,jq,jr; 0 bv:.n9kty ,i 6puetther 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 couzz mp4r2 bj/6ulombs will pass through the identified resistor in 5 seconds once tjp/ur zbmz42 6he 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 resistors in the following simple *a( 4g 91nxlro -uqtwl*3 t7b0)-qvi hhhclb pcircuit have the same resistance, which would dissipate the h9i l3wqon0ctx*h-4ahlq1v* b tl-b7 gupr( ) 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 c+(3l+ pdcvkon ircuit diagram, the current through the 6.0 Ω resistor is 1.0 d3l(o+kv +c npA. 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 connectelm7t zak 0+8u9((mss+uf ey5av / z2v lvpqz4fd in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and Rz9q pk8tzma0 yvl v /u((ffs2usem+l+4a75vz3 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 d.pbe r jb3j34h1wag+ R1, R2 andR3 are connected in parallel to a battery. Suppose R1 h rbb+j. 4wg33jp1he adas 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. What is the maxipcc8 t6b;y /jgmum value of the current under these conditio6cj pgyb8 /;ctns?

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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 xc2v4ffw:.tn6kj+0 .ev z g2v,tfdr l60 watt lightbulb designed to operate at 120 vovt4dvf ,fkz cxl:wr2gev 02. 6ftj.+nlts?

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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 currez*m9mur/,hob3zn l d.nt flows through a 4 ohm resistor that is dissipating 36 watts of pom.3lo*z/hub,rn z d9mwer?

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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 watt.” In*vzj4f / d adesi4s+8l nov 84il*sdz/ +fjesad4 rmal 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 resist)i2yogh7pa 1 q1e(tlx2q;z lf ances could NOT be produced by a circuit containing only three identical 6Ω resil 1e2ay gl72 oz;)fxhp(i1 qqtstors?

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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 th,p kbkq1hyx -y2twr)9ree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be prodqk 9w1xht2-yr bpy, k)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 resistors of differesd se 4wf9vu((nt values can be connected together in different configurations. If all three resistors are used in a(vsew(us4 d 9f circuit, how many different values 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 a7xb7w0kkz;tr5 9 fnxw battery, a total power P is dissipated in the circuik 0z 9xn7;tfbkx75r wwt. 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 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 connd:d;wt9s19 yxu d)p brzdi9q/ected in parallel, the equivalent resistance of the combination is 5Ω . Which of ther; zt d9s /y99dq:xidwdp1) bu 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 desig ii(h,q9itx-ohhk*ib.p2 d p6ned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45h 6h ptp(xqo . 9h-,idiikb*2i 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 resisto9 :3qs* fafcujr that is dissipating 36 wattu* j9ff 3:casqs of 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 cur4s; :, yuiinsxrent when connected to 120 volts. If the price of electrics 4xius ni,;:yity 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 wo4bue kn-+ yux6uld it cost to keep a 100W lightbulb lit continuously for 1e uu46-k+xny b 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 lightbulb results0no -. li*pals in a power of 24.0 W associated with the bulb. Which one of the following choices best represents n.l*l-isapo 0 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 watts in a 1fv/zjs81pt60q w(ibp 6vgz 5m 20 V circuit. If b(6sz/gf i 6 t8q01v5p pjwmvzall 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 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 srz4p84 vls 7t/ u5nswpimple circuit as shown to the right. s rltwpn4784sp v5z/u
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 iyo))uy 1e0 o n 6g73gj1ednurts connected to four resistors to form a simple circuit as shy7du y1e06 njg1 3ug ootn))reown 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 swm yqh6*k; )fteitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2 h6fqy)ek m;*t.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 switch and three resistors arn58zwjzy1qi; / 7k*sij nu6c ke connectejck7*z6j /sn; zkni8 iuqyw5 1d as shown. 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, xekh uy3opmf 3v; md-5r9wh/m4 :vjp*an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diam3 95p oudxm:mjkhph*4;3-vr evwy f/ gram 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 r yo hhhp)6+r+tesistance? Assume that all wityhr6p h+)+ohres are 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 of the circuit shown to the right witi7adwooq7t8jf d 5 +1uh resistance 1a o5q7 ujdw+fid7o8ts $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 shqs rn k2bz-qvr(5l q0.ows five identical resistors connected in a combination series and paralles(vnqrk 0-rq52.lb qzl 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 resistors xt07wyb0z9.gfy qh 4qconnected in a combination seri 9 yth.bqzwf 4qyg0x70es 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 bndc*1w51kearbok 75yo 2 8xo the bulbs are identical. Which bulb will b*rooe5ba8 1 ycd k75 kn2xob1we 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 an,8ieg++w1gyk c0h fipd three resistors are connected as sh+8 kgpwhfyi,gc +i e10own. With 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 refk+:uupj. xz 3sistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 23p .jx +uzf:ku.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 thxumn4s7r w9h 3ree resistors are connected as shown. With the switch open as shown in the diagram th37msw4h ru9nxe ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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