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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 exis.qxhik om89: kts 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 dikhmk8:o9q.xi rection 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________o1rv2)0tfhf/f 6dx.y hj 9znl_each resistor is the same.60dr xhyn9of .2lzv/f jt)h1f

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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 caut/k6n8utf5w xses the filament to become white hot, while the larger wires connec8x5/tuft 6nkwted 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 replaced wit:vwy1u tgl/ayh 3q 6t2h LEDs. LED is the acronym for which one of the following choawtl:/ y 3yv h2gt1u6qices?

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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-sectional asnd;rfpm2sbe :n0o( . rea A. It is to be placed into a circuit, but it first must be cut rsdn0nmb;fe. os: (2pin 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 wirt6l 8v s0h9qi;7u wp)8gmpmfve II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resi8hqgmvu 9mw)8l 67sptivf0 ;pstance 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 thegxv 3nl f3fu.3jacgleu-,x oh6/87bg same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R thf/h g jxcv8gub. 33-egoa76lu3x f,nlen 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 length8*-+cuac98r0gjazzbqu( 1, g d s spiz L and radius r. This piece of material is then drawn so that it is a cylinder with new0ab s+ u,cz r9uzgq s8ciz(81apj*dg- 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 ( h5: xleo h;,)ivhimwrky :8lto make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a giv)l :h: 5iyilm; okvewh(,rxh8en 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 sam kau0,dcn z.y-e material. The length and radius of each resistozk-y dcn, 0u.ar 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 resi kz-1xc(rerl.,y luw9 stance 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 third resistor. This set of euy(.l-,rlzwx9rck 1 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 act ,bi-g950 4f03ex cks nzwzkbcompanying circuit diagram 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 most nearly:zx-iwgbz k,0503ntb9k cf4s e


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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 ik tka ( bpdeq1bx :x*0e*7u9tcompound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagraxx9 1et0:pa*dbtq (7 uek*ki bm
- 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. kmc)zwjis*dfv(33w ex)..alIf the current in all three resistors is equal, which of the following statemcve.zkml a. dw* i3f3s jw()x)ents 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 rhlr,48ho h4yx* m4 mta x1f;xqight represents a simple electric circuit composed of 5 identical light bulbh4yqmhx ,4l r1;x hxaomtf8* 4s 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 statements is NOT true mgpn7oxs/ (r; concerning the simple circuit shown where resistors R1, R2 am;rxsp/n o7 (gnd 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 connecweudo,x4z5f*4 8fsb cted 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 choices best represents what is obsex,58 cbs*fouzfd 4e4wrved?


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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 jq)hjo3ri0 am dp0q-1the identified resistor in 5 seconds once 3rpi1-dmj00aqjoq) h 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 7 8yk: xj1dkfothe following simple circuit have the same resistance, which wo 1kd8k7joy xf:uld 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 accompanyin3(fgtv c4 yiv0qj1gtpo, + ;fqf0kri1.cdb +x g circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is theck1 bv; g0f,t+t1xqrjfo4(0 dcpf y. iv i3g+q 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 a battery. +:(*orhee ruq Supperq:* (h er+uoose R1 carries a current of 2.0 A, R2 has 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 parallel to a bat4et 8ka td2kupr:58g htery. Suppose R1 has 2V across 2 tektu4g 88:ardph5 kit, 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 max1 30jncump9n eimum value of the current under these conditionsunen9pj31c 0 m?

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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 oper *vm) hqud 9crkvjk)n 03s+s4eate at 120 volts v4qe*0c ms3un 9h)dsr)kj +vk?

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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 curren9tn)r,tb9:kbpobg/u*7b my : wx m/hb t flows through a 4 ohm resistor that is dissipating 36 watts9rt9b pwm),u/:t7 yb/m:bxb*bgnh ko of 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 used to press clothes is h:k xrcm 0j1 yex+,yz0marked "120 volt, 600 watt.” In norh+: 0e zmc01, yxxyjkrmal 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 produc m. u,sct/bxu,ed by a circuit containing only three identical 6Ω resistors?sc/.,mxu tb ,u

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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 followingh;ys.ka6rbp,t0 g 7ks equivalent resistances CANNOT be produced uy s6rpbskk0. ,hag; 7tsing 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 resistorscxh7whr; i7c6 5-h 5lz5.v iali (ttsq of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of totasii6w55 lqhh77.ritxc ( ;hv c-5atzl l 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 is diss9 (t d(99xvj t5ljnq jga -awpeqyc;);5/yrmiipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in s /;n tg5djq9ye(xi jrytwqm5);j-99aap vcl(eries 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 resistoj*hu xh1m(6pit1yyanh 9u4h(zr r2 e.rs, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the n4p1yuj .hyur t1 z9(a2em*xih6r h(hfollowing 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 operati m5:b-ilu )aljuqw5z7p - +rhvng at 120 volts. What is th-l):awvmh+ zl 5pu u-75 jbiqre 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 dissipating 36 +l7u,o)1 )wm w 4cixn vypkbu 6ea4ujyq1:.hk watts oyqw+u u, cjn pmy)71x)lvheo: w41 6a kiuk4.bf 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+r9xfnq*kz;)u7 ib7jdp;d a y amperes of current when connected to 120 volts.nr j;ddp9+a)if7k zuqx *b7;y If the price 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 16)-(ig +vfquwp t nkk900W lightbulb lit continuously for 1 yeuitnk ( g9+)wq6k-fvp ar 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 curra ; tmd2gavelr7913uq ent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the 2731 d;qvugerl9 aatm 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 six owns a computer rated at 500 watts i9h7xg a,un b8mn a 120 V circuit. If all computers are plugged into a single circuit protected by a9mxguhn87b, 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:cry;2 vzgv hwk0 ksdf48m2 (zsistors to form a simple circuit as shown tozydk2vm; 0wf8c24z :vr (g shk 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 simp4ghl sg xjk .s0-44ccdle circuit as slx-gcs4dgh4k4 j .cs 0hown 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 three resistorscw3, ha43,y up.fxagm are connected as shown. With the switch open as ,,u 3ca3xf.hgmw4ypa 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 xv p8sdx-9r1b.x4fzvb gkzp+w 009je three resistors are connected avxppe +9-0r bvwd jx904 .x81s zzbgkfs 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, an ideal ammeter, a switch and three resistors are conn:lvvz* 4x 22cccha(w wected as shown. With the switch open as shown in the diagrzh*c cc2 :w(x 2avl4vwam 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 equival 3 cc i+o8gegcovu;(v7ent resistance? Assume that all wires are ideal, the battery has no internal o ;c+8go 3cuvig7c(veresistance, 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 th9g /t :rznv:7dden:oo the right with resistangndhvzed7 :o t:9/ :nrces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 izjp,* 8 ;z;gqudodli*dentical resistors connected in a combination series and pdp;i; zg8l*,jqd ozu*arallel 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 coneq ld ucxdtxt p63 a37i(sv;:4nected in a combination series and parallel circ3a 6x7: ;td 3xepl (icdutqs4vuit 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 the 3ki:ri+n(lyo bulbs are identical. Which bulb will be the(yo+k3 nl:iir 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 three resistors ap :9vum:nbgc 2s -n.mgre connected as shown. With the switch open as shown in the diagram the .vnup -: b smcn:gg29mammeter 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 v e j7;2fyxpoaka ;28mand three resistors are connected as shown. With the switch open as m8 pa2 ; fvyo72a;exjkshown 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, anzthc -(gjq pgb+w ,ux*.2kpvkk1 l51i ideal ammeter, a switch and three resistors are connected a-,lk*+j u z(gx5 .pktckiv 1pg21wb qhs shown. With 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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