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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 metaah*(m o: t13gmub+ dqt ;wv/qtuj7j/ol 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 electric field through the ingm;d hajtj/oqm(: q wvt t/ *+ob1u37uterior 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 parallel, the______alau a0qzf3- :22blxe ___each resistor is the 3-2qlfz:ebx 2la u0aasame.

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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 avx+xe*,da+x5( a ns bu lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much codnax ebs,++ va(5*x uxoler. 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 LEDs. LED,zl ys+b+ygfmlm m-09 is the acronym for which one of the following choicel,+ys0f mlz -mg9y b+ms?

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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 lema. oj t/v2i(sngth L and cross-sectional area A. It is to be placed into a circuit, but j . sio2at/(mvit 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 sam ohfb1huzi+bc/;: 0qnq-4pa te material. Wire II has twice the diameter and twice the lengttofn1:ua+0 qbh4iqh;c p/z -bh 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 m9u1vgnode r5 gr+;2y has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y yo2d51;uv9e+rm nrgg 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 leng i6ku*:m2o*qyy pgrq5th L and radius r. This piece of material is then drawn so that it is a cylinder with new len*qrupyg: i5km y*26 qogth 2L. What 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 bulb. He decides tl 1d/+am5 tf1dw.eed(alvi zye8. tt7o modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a give1(v5teyl./dl etf + t 7diw8mz1d .aaen 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 matt04 yu 4cwdtp)erial. The length and radius cy 0)4dwputt4of each 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 q +a4beqfr: x8.cvh3ato a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connectedv4. cxfa+q q:rh 8ea3b 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 diagrahp3h j ,7ta5ypohab6gbj,*6 m8hq p+am has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is mop3pp q6g6bjj , ha7a m58b,h ahyho+t*st 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 compouz5wa1tied,) v s: cu*bnd circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors w *)1bv5asetdu:ic,zin 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 circuiqetoj d2he m6+kh/)s: kyp:)at at the right. If the current in all three resistors is e+ak6 et/esypd :: k)joqmh2h)qual, 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 bg/c6*b tuwqh0 gesxi-5-m 5v represents a simple electric circuit composed of 5 identical light bulbs and 2 flashligg qbhw6*i 5-gb50ts exum -c/vht 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 true concerning theq3;(/ejbx: bq vdpc,y simple circuit shown where resistors R1, R2 and R3 are (qyb3,ev:dbq /c;j px 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 conneuhr(cs(1buvsas1c 9 oy42o-t7ymf(lcted 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 wtc1rva 2s (fc17(ysso byl ouu9-(m4 hith 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 igi* bk /awbfm sr36h8+wkt- 9tn 5 seconds once the circuit was closed?/*bk+baif6 g wr9h -tw k3s8tm


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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 t2h,piw44 apseqqy* m kl(yu :t11;vu in the following simple circuit have the same,wt*4ps iq4 qha : ; 1yklyvp1et(um2u resistance, 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 diagram, the current throug;4m on zawx-lx9d7(uqa rh,89ad o yo-h the 6.0 Ω resistor is 1.0 A. What is the power supply volta -w(87rhmx9laaudx 4qn,o;-o yzaod9ge 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 seriesgiyxiy),q t6gunp6p :1jb6 /dgp k41n to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 diug1iyyxi6/g) n,66d gp: pbn 1jt4kpqssipates 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/-phzi kaig4o (hv q11 resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2i hk4zh i-gv(1qap1/ o = 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 coi31dpai9iq ah-cxq 0jn:kr b 38l is rated 1200 watts and 120 volts. What is the maximum value of the kp 3 a-ria: 1cqbdin38xj9qh0 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 oper6 sdpk 3d 77s(bgbtxfrup5 .k8sh*s1 hate at 120 hbd8ug* 77 pk sk s3shf(strpd6.b5x1volts?

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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 thi 3 6hhdfxo8d*r qyz mv09cw92 9,tlgfat is dissipating 36 watts of powergwflfr998i*9,6z2 q d0dx ymv tch3 ho?

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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 ".:s n3whx8iin ga. 9wm120 volt, 600 watt.” In normal use, the current .wnagh 9:m wxns3 ii8.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 resistances 6+gbatsxu+: n could NOT be produced by a circuit containing only three ident:gn uabst +6x+ical 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 folyadp o1l:d37 slowing equivalent resistances CANNOT be produced using all td7ys3:p ldo a1hree 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 can be connected togeth03fl buwm.jsxu.fa9 ,er in different configuraxu.f.bs a,w30lu 9jfmtions. If all three resistors are used in a 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 connect3 v2c*.5(bs kwtg*xe 2ljurp9zlr h *ced to a battery, a total power P is dissipated in the circuit. How much total power is dissipated22 kj x9*lhz*vep (csw5 lgcrubr 3*.t 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 a v/mtl5pm:apo(k.)946pd gss,x uzh parallel, the equivalent resistance of the combination is 5Ω . Wsxu op4zds6vk plmm9h:)agap( / ,.t5hich 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 12jlivt/: w.1 fz:qb,o l,0hh onΩ when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg1.ohz ,: hiltqbnfljv :0ow/, 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 thrixe q;c)bif17ough a 4 ohm resistor that is dissipating 36 watt;i 7)xqic1befs 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 current when con a2 za6mfoz1**ut q1acnected to 120 volts. If the price of electricity*6 2af1a*cuq ozmzt a1 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 lightbfwz40 qlvuj0,ulb lit continuousu,f4j0qw0zl v ly for 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 k,seou i7fz 6,4.00 A through a lightbulb results in a power of 24.0 W associated,i 6s,fekou7z with the bulb. 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 apyrlmgo a*(x 2d g10j8 family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, w r 12xd*(lp0gy8ojag mhat 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 aa vv5 t8dgn8r3 5xm3eu(0 zpjd simple circuit as shown to the p0 gt3e88d zn( 3vrau5jmdv 5xright.
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 resistorsa ai 3 y,ym9byrhk77*s to form a simple circuit as shown to the yryb *,3m9hka sy7ai7right.
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 amme + *bnc :h4bbzens(jq,)2;usae xh at.ter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram b.qs j e useb2aahh,bx*c(n: ;znt+4 )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 battery, an ideal ammeter, a switch and th5e tu(i3gisu0iie7 (uix8g 4 vree resistors are connected as shown. With the switch open as shown in the diagr54eitu v0u7ei(8 g3sgxuii i( am 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 idea4oa yjcdi8ziwyz kxb . *r/5;/l ammeter, a switch and three resistors are connected as shown. Wid;iya/obj8c4w.*5 rkzyzi/xth the 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 s eyc 8f7 (d ey.lhhtjv9qt de+fr8*v k/27hk(shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal 8f(yej7h.f9cld 8/y k d 2vvk he+7etsqtr*(h 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 with rd zk)t2+ 2bkuresistances d2r) tku2b+zk $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identic0kbl4t)vz* 2gemm sy9al resistors connected in a combination series and paraksb9tm2)ylg 04*v mzellel 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 resistodki*lsoo .5 gxg+ t.;hrs connected in a combinatioo.5 k .s ldi*;tghog+xn series 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 th(8qx-i4ap9njg z i)d ye bulbs are identical. Which bulb wil4 j xziy-8q9a(pi gdn)l 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 ammeter, a switch and threfwt;(s.8d :x zf1c fgee resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 at:1 ;g zedcxwf ff8s.(mperes.
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 res pn7;5c 2zx4z(2ukyahv-sd rb istors are connected as shown. With the switch open as shown in th2n sprxca-yuk5d27b4h; (zz v e 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 resistors are conp 5jdibmq1d xle l4pj u/0k0;8/frz+ mnected as shown. With the switch open as shown in the diagram the ammeter rpmx/k8i4 p +;d lzjf0l /0j1 qerm5ubdeads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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