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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 rk 8atp/y*bpmlr( xu/;z):9.k hv kqbexists in the metal 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 interior of t(rqvtpukbb lp/. my *hk;) rk/9:xza8 he 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_________each61j rv,d9 uerw resistor iruw 9e,rvdj6 1s 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 thiyf. v51f zt8trn filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected tovr85ty f1t.zf 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 standardus cs74jnh7l j.6x8b8io v5zs household lights are being replaced with LEDs. LED is the acronym for which one of the following choicesj7s s56uj nb4l88 .ih7ov xzcs?

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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 resw.h ajf*x ud20istor has length L and cross-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 resistivity to the old resistivity of th wxua dj.h20f*e 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*t ,6 ydm*i6lcctir3 j same material. Wire II has twice the diameter and twice the length of I. If I haci,jd3t mrc66iy l *t*s 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 theeqoope(z) pc tt3r+h p+mcl2iy.8e )i:a u43 b diameter and half the length )oem ht2:cpi3o( +a+zl .qr3it 4e c)pypue8bof wire X. If wire X has 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 resistor has len066jz. 4fld* 3iq(wxz2eu 1 lhyb jdhfgth 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 t 6jh h40 jud *db.xl6ywff(q2ezl zi31his 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 Edizzd ld4ekbd)j tqwj a. 2r+7/2son wants to make a brighter light bulb. He decides to modify the filamen7)jzb jawd .dr/tq2 ek4z ld+2t. 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 cylindrical resistors are made of the sal.rxu-r6 g ) 4ydnxgq;me material. The length and radius ofqgr n xlux)4-drg; .6y 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, ( /i ot5qeymjk9bzk *fs4/ b(deach of resistance R, 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 thit kzi( b/ ksyqfem 9o*bj(5d/4rd 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 accompanyin) qgg4:gei+q mc;g5gg g circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammetgg;:4+5eig c g)qgmqg er 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 *iza gr*ei5(jt z:(b gthe right. The three bulbs 1, 2, and 3 - represented as resistors irte gzbagiji((z* 5:* n 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 7g9xwov5l9mo)x f 2klall three resistors is equal, which of the following statemelk92g)9 w xm5o xl7fovnts 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 righuyf*l3:fp0 h v.s2lg jt represents a simple electric circuit composed of 5 identical light bulbs:y phjvul*.3f lg02 fs 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 following statem :or qcqcf,;x.ents is NOT true concerning the simple circuit .o cf;qr,q: xcshown where resistors R1, 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 battebebs6 24uafth + 8ouv.ry. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected vsubub248f ho+e6at .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 through the identified . d*b1cf.fl88+wltgz)p,c iv e+ u4kuwovo2p resistor in 5 seco4peu.1.b wd8fwccl8 p+,i2 )*fovukl tzo v+gnds 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 d.wdzp95 yl*v0uyf-k in the following simple circuit have the same resistance, which would dissipatz-yuvw9 fkyd .ld 0*p5e 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 circu7 bog1zgo 4/q jbdqd2ld*k7b)it diagram, the current through the 6.0 Ω resistor is 1.0 A. What i 2jgg)b7b 1 ddqzo*ob/d ql4k7s 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 connected in series to avsfv um19 m0s 299bmd*y cxujtk1)ix2 battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, anskx121y2 9 j um9)imuv*mf0scxbvt 9dd 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 paralpjzo 1;x hlp7(v+n*xalel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 di*+ho7 v xjpa n;p(xlz1ssipates 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 andevmj0+hr g8es 2qme57 120 volts. What is the maximum value of the current under these conditioe0qhs7r+2g 58mv eejmns?

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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 resistk3 hxx hzx3paw 41*2hlance of a 60 watt lightbulb designed to operate at 120 vxpl2hx* x34 w3k1h hzaolts?

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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 remkihku2zsfd:o:l9 2/ b/mm 4 tsistor that is dissipating 36 watts of power?fhsk/b m2 i/mm 2k9oltd::z4u

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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 prefqb98vgzwk:mpag r+ /s)7qt sl8 k-,dss clothes is marked "120 volt, 600 watt.” In normal use, the cv/qmkqsa8 sz:l)gd7 rktb9,-+ w 8fgpurrent 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 aa)ztcj7jhh 3 qh8pm)9 circuit containing ) z8q)p7thhca3hmj9jonly 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 *z7xht.v h4:z4j9j7hgego dxof the following equivalent resistances CANNOT be produced4 e.x7ot *9gzjxhd:4jvgh hz7 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 different values can be connected together in differed2/( -gmgm my a)-tijyn)(mmgmyj - 2/y-gitdat configurations. 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 connected to24p-/ur t eptxu)t/9llls8 zc a battery, a total power P is dissipated in the circuit. How much total power is dissipated in8)t c /tpplx 9url/ -tu4els2z 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 1lxc5hy/4 jhf R1 and R2, are connected in parallel, the equivalent resistance of the comb xl hhjf1/5cy4ination 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 sucg5h20 *yb uxsl5 eo+sbh that it has a resistance of 12Ω when operating at 120 volts. What is the msoe5g *s 0hu2b y5+blxinimum 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 ad0vbe2j- s ,iv/ul 6fx5.cuq resistor that is dissipating 36 watts fuv26c/uxqsd av e5. b ,-lij0of 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 amperesje9 9g 6ud2fyx of current when connected to 120 volts. If the priceejg2 9d9uf yx6 of electricity 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 1)1r gczzdz1fif; 3m +,imz p5j00W lightbulb lit continuously for 1 year p,z)crf;f53zd m jz+i 1gmi1z 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 results in a power of e136y)ob * jtbut)e4 kgh xx4f24.0 W associated with the bulb. Which one of the following choices best representtefb3gub 6kx 1jtoh ))4*xye4 s 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 comp nh-+tcvlt. 0(t/o6gj e,l,idu as+oputer rated at 500 watts in a 120 V circuit. If all computers are plolhlt/, se + uovdg.0(t+cin p6taj,-ugged 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 re 8:,rf 7lpl.ktt-nfwklhg* /wsistors to form a simple circuit as shown t tf,k*wnrtkw7l:ghl.8p /f -lo 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 connec a8hu94nq49xf jhf0 nfted to four resistors to form a simple circuit as sh 4jq h8a4h90fufx9 nnfown 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 threex*ztp0jb,wj 90e) fri resistors are connected b9 z,jre) f0tjip0* xwas shown. 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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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 threg/0e0fy dhw q1e resistors are connected as shown. With the switch open as shown in the diagram the amm0 efqwhd0y1/geter 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, ap nbq55h bjt92 switch and three resistors are connected as shown. With the switch open as shown in th 5p2qj n5b9bthe 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 thzx6( 6hqih k+ae right, what is the equivalent resistance? Assume that all wi+6i 6kqhx(a hzres 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 resis2 1brxghkg)m- tance of the circuit shown to the right with resistr1x2bg )ghk- mances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 rmqqn*n o;ib6+leq k) s., c.feesistors connected in a combination series and parallel circuit mn+eoq)f q,*l iqekcbsn. .;6to 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 connectexl5amr q 0d0n. ce,3)qwz .remd in a combination series and parallel circuit to a voltage sx,5 qr )e003 er.qdnm lwz.mcaource.
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 the bulbs are identical. Whiw. gqnf3*gq n7ch bulb will b.ngw q*7q f3nge 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, ld56xwh-2pcfx ky;/ dt4qy 9xc99jgxan ideal ammeter, a switch and three resistors are connected as shown. With the swd 9l y4xc;/fhxjwdq g59p2cxkxy 9t-6itch 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 thwmcck *(e*/ -0m yl1hjaih1zaree resistors are connected as shown. With the switch open y*m 1lc 1k maahjwe*i (h-c/0zas 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 the , 97lj qn1zh,n(tqgzree resistors are connected as shown. With the switch opentqj ,,hlqnge n91(z z7 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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