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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 circui 7 1 ru*v8 c7s)pxrqyriiqx( w7hwe,p*t shown, an electric current exists in the metal resistor connected to the battery. Which one of the fhp(v ) iq8ewqrc1i7y *r *,s7ru7xxpwollowing 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 connected in parallel, the______hl n7krmk;/ -pkaipag: d7u )+___each resistor is tdu/k pakn phg r +)7;lk:7-miahe 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 filamen4 3 wt ehz-.w cfi08ny 68*jx3vhfewbpt wire of a lightbulb causes the filament t 3hpw6z8.3*wety0bf f4vne jhw8 ix-co become white hot, while the larger wires connected 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 being /ixis d g vap2;ams1r+3f:+wb replaced with LEDs. LED is the acr;i pwm:f rsvbgi+a+x13 /s2 daonym for 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 cross-sectionsyb4 aq..b9ycc)toh* qj:e c.al area A. It is to be placed into a cirqb*e4qhc.s:9 tycocbj. ) ay.cuit, 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 made of the same material. Wire II hc q)lmtzg,jy*bu3*+f2 v+nb1gy e 1og2h se, jas twice the diameter and twice the length of I. c jgb 131tb2nehs elo2zgq*my)u + , g+y*vf,j 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 ;zj*nihki8o tmk-c 7+the diameter and half the length of wire X. If wire X hastz nj-*k+ k; c7iom8ih 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 cylindricalc,ec5r)yl b n/6uiz8g resistor has length L and radius r. This piece of material is then drawn so that it) /5ceb8g ,rlyu6zi cn is a cylinder with new length 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 brighte7wldvs;6 m5oe r light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the ligh67;vms wde5 oltbulb 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 resigk+/ s7d,myvem.3zt y)a a (ymstors are made of the same material. The length and radius of each resistor+aygye vtdm) a3 mz7.k ,/mys( 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 jb3;+q3, +yt al2 k9 wmvmhtqva 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 resistance of this arrangement of four resisq;wq+ay23m,+ lvv jmktb9h3 ttors?

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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 circuigf c 2byp+vbz(0s/v0 ct diagram has internal resistance 10.0 kW and the ammeter has internal resistaf0p0cs2g /v+vybbc(znce 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 circ a*4neqtv/ a4auit shown to the right. The three bulbs 1, 2, and 3 - represented asqnav44 e/*ata 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. If the current in alz c o5c4 c:a;t7ip/+yr exkd+ml three resistors is equal, which of the following statey;kecat or7id+m x4z+/5 ccp: ments 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 ab9f:bo2 t)p5/c gzc -cxc(m ws simple electric circuit composed of 5 identicam5 cs/)pb co9bc f:-wz2g(x tcl light bulbs and 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 followin lhs7da5y; gr*g statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 a lsy7g5 hd;*rare 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 zljf ,2mscm:s3, l(td 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 choices besl,2slfzm3tcds( jm , :t 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 iedx* xtz4; y1adentified resistor in 5 se; *a4zt1xye dxconds 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 the folloxs3quu 07,bjgwing simple circuit have the same resistance, which would dissipate theujx0qs, ugb37 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 through the1 1bjc0 b*aqa/mg8c3gm)nh cg 6.0 Ω resistor is 1.0 A. What is the power supply voltage V1a h ) jmc8nab*c/cg3q10gmgb ?


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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 Re6w2 /md/xlaufry ,.f 3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a6 /l yfmaw,e/r2fxud. 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 par; xozhk dx7,)nallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Wha7 ;x,kdz)oxn ht 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 x o0:a48cv4 .lpyusivwatts and 120 volts. What is the maximum value of the current under these c0s iuvy o.x c:8va44plonditions?

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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 ofkd ng,;r jw;mf+7me; 1i,mmex a 60 watt lightbulb designed to operate at 120 volts?k mir1;7fe ; mwxgjmn;,+emd,

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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 throu xsu(d,rke*-kjwa)*( uzw:x2n txm 9igh a 4 ohm resistor that is dissipating 36 watts )edj ,z *x(krmusx(u29 x-nk :t iww*aof 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 i-(fjwoj (ax3)d+l ool ron used to press clothes is marked "120 volt, 600 watt.” In nor+-j(a(lldxoo 3)j wfomal 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 resistances could NOT be pro6 7s5lk,h/f0 qx riazbduced by a circuit containing only three identical irkqa zh s, b6f75xl/06Ω 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 following equiva(jn),b;v vpci lent resistances vv(ncj p,;bi) 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 di. lf7i9d*edjob,c fc/ fferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many dc.i79ebd f,c*d/jlfo ifferent 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 ny6ol1q5kbkmo +l138s5e u iftotal 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 thyq1 b ek153fk 8+msi5l6 oounle 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 udhahf*l c5dis -p:13in parallel, the equivalent resistance ohsuic- 5fhd13a*l p:df 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 12Ω uq j8ch,/xy-s 0epb(8oo*p o iwhen operating at 120 volts. What is tibo/08p e8q , oxyp-*s(ujco hhe 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 dissipati7uz,*rmh t4wv+q vgqd)zn9j : ng 36 watts v*hv9q)r+un,m 4g7 wq t: jzdzof 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 h,5 f l7p/s5v+wljc ic13 amperes of current when connected to 120 volts. If the price of electricity5vsj7 ,/ lpc+icfh5l w 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 do)rqo tn(gq9 .vw( *kwould it cost to keep a 100W lightbulb lit continuously t(oo gdq.(vr k*9)wnqfor 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 4.00 A through a ligh*5d5pa smq *sf +fo(u2zwj rzm c1bw/9tbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents thec sfqz12ur(fs mwz5o*p5/ bdj* maw9+ 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 asgp*a +y+s :gqipt1,t9s)f c120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum number of the computersptsf+ ,9cpt g qy+:a)a*ss1gi 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 tozad1+ bdz2 km-an:mm8 form a simple circuit as shown toza:18dm a mnmd-zb2k + 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 fo 5 z(nn )k9khk.fj7mkw0dkpa. ur resistors to form a simple circuit as sk90z ak p(khkf.km5j).dnn 7whown 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 and tzv8r a4hj rfq3 7*dt3rhree resistors are connected as shown. With the switcr 78*fdr qv3jahrz43 th 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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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 p,d*x diz9gk1nfr 0 7kcwf*ywbu313t resistors are connected as shown.rtz i0d9fwk*1g3u3 k,dy*wbnf1px7c 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, an ideal ammeter, a switch and three resistors an 6n)r/nonwtakc03u e4 8xwx5re connected as shown. With the switch open as shown in the diagram the w)5 x0er unxnn 86n/3c tkoaw4ammeter 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 ri.z1v,dzrmg;6 :zu :tpq/tx mkght, what is the equivalent resistance? Assume that all wires ar6 rmz, vt z:xuk1d:;t/zq .gmpe 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 themi f u5c.2(m9sowg1patr4c.q circuit shown to the right with resistances .fi stc m52up9magw.4c(qo1r$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors connected in a comtp9:j+3r,m y)kyvylh bination series and paralj9yy:k3p)l h rm+vyt,lel 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 identice )cy,jdxun20 :1jgwa)0k kil al resistors connected in a combination series and parallel circuit to a voltage 2w) i: dg1ucjy0k x0ejaln),k 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 uwo 4w0se qm 4pi2:w,ithe bulbs are identical. Which bulb will be the brightest?i0ip4s 2,emo:w 4w qwu


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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 resistors*,vkbm8+zy c*bey2ii are connected as shown. With the switch open as shown * yiibc*vk2 8,eyb zm+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 tvvzik0j5vnp-u lx +-*hree resistors are connected as shown. With the switch open as shown inu+l* v-50n i-pjxvkzv 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, -eu/.pzz;sxmln9 s4w a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetn;slx9s z.pw4 u/m-zeer reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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