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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, ac987 k)wr 8omadmf:a rn electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow throug89m:w kcfmao7 drr) 8ah 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 cy,k .eymwy.bg( rl-d1;/dxgtonnected in parallel, the_________each resist,.xwte- r ; .bdm(/dlg1gyky yor 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 lightbukv3 a r5vv1(pxlb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cook5(p 1x v3ravvler. 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.yw qx + 4kn:ww )mqdy19z:rtjctu phq4vq.7-9 LED is the acronym fodyntqzh c9: m.9q )7q4vtujq :+-4rk1wxwyp wr which one of the 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 crosst v/i.qruex9zr2jml8;1 vu5l5jep t 6 -sectional area 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 resisti/eqi 5v6j; z peljl5urxt2 t1mu98 rv.vity 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 m/d,9+0c 2gnccv7rduzd rnts6n 3x94ei6 grpf aterial. Wire II has twice the dia4n6sinc r cn6er 9g39dgpdr2/vf cud0 +7t,xzmeter 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 diam9w;/-snwxi(p d i 1l+mlxv7eyeter and half the length of wire X. If wire X has a resistance of R sx;-i lw17p9e ldx(ymnv +w i/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 material g)9hf4nj2 , vomxu-nc is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this materialmn)uxcv n92j4-hfog , 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 bs5/bgkq 8/c phbf5;0zc nn4y ;ufbgv4righter light bulb. He decides to modify the filament. How shnh0cu4fc nf;5;pgbyzqbg 8v b5k4 /s/ould 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 cylindrical resistors abh)u zg36a yglk(: y6rre made of the same material. The length and radius of each resistor is(aur) y :ggy3lzk6bh6 :
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 11, ie ot5j6mxuhj6 k2b oqg71zru3c eR, are connected 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 connected in series to a fourth resistor.” What is the equivalent resisui 21c1g bm7e6516 equ3z,xrohj ktjotance 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 p, 0j;p9 p3e6wbwhpawv 0 llu*in the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Thej l 3p9*pw0h pwp u;0alwv6eb, 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 r2 ar.jx/klz 3ir8-s;cejs j*bight. The three bulbs 1, 2, and 3 - represented ;.*l e xzj- 8jbsj3ck/r2rsiaas 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 a4romx8 2 kueo3i1bt 1st the right. If the current in all three resistors is equal, which of the following statements oe81tsu3irmo x2 41k bmust 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 circuit composed ofaa v17ra f 9pcc/la 4h5 :zznh.1vyag2 5 identical light bulbs and 2 flashlight cells. Which bulb (or bul. a ca f2/9yrgacvh5az l:1vn1ah4zp7bs)
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 following3be 2e9pqw669tqyv w x statements is NOT true concerning the simple circuit shown where resistors R1, R2 a9pv6 3qt e2xqb6yww9e nd 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 conv /*s-ac, jbqonected 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 other to the same battery, which one of the following jab/s o-qcv ,*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 identiffz6ap1oy od c2+so9(et kdahb)3/h v )ied resistor in ksa()bv 32d) yzp te9/1h+ofooch da65 seconds 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 resistors in qxhtvwe80+l ew a7 on 50;gh4t the following simple circuit have the same resistance, which would dissipate the 4eoet;xqgvw 5 nt78hhl+0w0a 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.x3bka; d *il h*t pijhpv97q( through the 6.0 Ω resiskvqx*blti.ijphpa h ;9* 3(d7 tor is 1.0 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, R2, and R3 are connectpwj,m - 6 :mmbivnstq x-zx3)i ,fc.a+ed in series to a battery. Suppose R1 carries a current of 2.0 A, R2 hxiipzf).:mjatnxv ,3- s6c+b-m ,qm was a resistance of 3.0Ω, 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 parallw/+y i 3/bmihn/1 cclnel to a battery. Suppose R1 has 2V across iibn+1//i c3hc n l/wymt, 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 vj5, jnfma 5gf3olts. What is the maximum value of the current under these conditfma,jjn55f 3g ions?

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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 yvbx8,t+it- ylightbulb designed to operate at 120 vo +x8itbvy- yt,lts?

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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 t mpp: 01m.b5f xi7c*i,gloj m9p3e ceresistor that is dissipating 36 watts o .mcp *0, tem3f17j:i95pipcog lb mxef 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 usdn6 00exqkke+ sw:e1 ved to press clothes is marked "120 volt, 600 watt.” In normal use, the currentev de6k 0nqsk w+10:xe 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 could NOT be produced by af*e gk6fhlt9b-)p l 5r circuit conta6k gf-tbh* p5lfr 9l)eining 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 1.0 Ω resistors. Which ofeia bu d-ia)/4 the following equivalent res/abiu)- dei a4istances CANNOT be produced 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 differentscn -wjfi9 qo7b2yf:v8x82 d y values can be connected together in different configurations. If all three resistors are used in a circuit, -qwn9yjoc fs 88 72y: xbdifv2how 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 a battery, a total power P jqofk g5o*4s :is dissipatedo q:5*jfs4o kg 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 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 c(6c qyvq1mp,tonnected in parallel, the equivalent resistance of the combination is 5Ω . Which oq6pt( 1qv,c myf 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 12Ω when operls0t6 8jikcprq -.cc7ating at 10pijqc7 -8 .c6r ltkcs20 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 v ./b5a*vcjxv f: qk-jdissipating 36 watts of f-k/xjv .ajc bvv*5q: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 drawsfigkld2zf .rw / ;p;o* 13 amperes of current when connected to 120 volts. If the price of electricity z 2k/;lr ;gidp.fwof *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 ligt6fkdqyo5;vl6c6u +b cyj+,t htbulb lit continuousk+o+6tqdl6 6 yfc vcbyut;,5jly 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 4.0nm64r+y6gkzq 2oc :m c6gah:r0 A through a lightbulb results in a power of 24.0 W ass 2r6mc:og+ gnayc6: 64h mkrzqociated 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 a family of w9lq-3 uc ;bug g:b1gnsix owns a computer rated at 500 watts in a 120 V circuit. If all computers are pllb u;uqb g:91wg-ng 3cugged 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 resistjd o5 m64h/khiors to form a simple circuit as shown to5ik6/hd4m j ho 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 connected to four resistors to form a simple circu7 vum1jhn6wqx3pu,7e it as shown to the p, wnm7uev 1x3 h6qju7right.
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 resi7xk+hr 2ib ps6 f/g6wuykuzy 147 3fknstors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.w 617 zby/ +puf3 kkfki su4yg2h6x7rn
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 twt1 6ahhbj :u8hree resistors are connected as shown. With the switch open as shown in the diagram the ammeter6hu8bt wh :a1j 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 switch and three r5c .ztb wtosge,j(hd*c9 8w of8.p;fvesistors are connected as shown. With the switch open as sho.z5h.sw8cbep,cvj ot 9d8f* t(f og;wwn 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 tv/r4fshsnd z,.2ojj,he equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and,dh4jovf ,js sn./ rz2 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 resistanc7uc7 dk pl6 afm-e1:aoe of the circuit shown to the right with resisa7upkcelf7 ma 1-:o6dtances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resisvvr61dzm)pdc5 z;tuiffpl -jb 95 00itors connected in a combination series and parallel circud1 pr-md)5f vi ;li5z pzfj0bt609vcuit 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 cox/x 7oxox/naspu zu p*owy:*hm81,y3nnected in a combination series and parallel circuit tyx1pxzm*ohuo3x7s o ,:/ 8y apuw*/xno 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 circuino)j;0 ch9kpc q;flz6qvrjs o/n1 91vt diagram, all of the bulbs are identical. Which bulb will be the bright1 hcrcoj0j l;p;16 znq/9 vosn9kfqv)est?


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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 v3q6 8 ww0b:ny7jsltiideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperetsbwq:n 6vlyj37wi 08 s.
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 battery3*cb lui gq sxim5t-3 u.9tg3f, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as bcls.m3u 9ut*it gf g-3xq3i5shown 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 idemfed:tb23 ; ky5l7 fswal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the d fk;3l:dwm b527fte ysiagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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