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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-;phq ulc (o;zcwegk4 emx.;9 current exists in the metal resistor connected to the battery. Which one of the following choices bem;z9ge o hlck .qxue; pw-(;c4st 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_________each re: ,8j4zsfxjl xsistor is tljz8s4j, :x fxhe 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 fuh :wp2e ed+0:dy , +jtlxwql c:s f;muwuu,+0ilament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lht2 uj:w luwypqf+c,e;+e :xw +u ,u0ldsd:0m ightbulb 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 with LEDs.xh7i,2 aqb ipsp(6.yr LED is the acronym for which one o(qi., s2hi6bp rxypa 7f 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 regzltpmtg )v c51nu2t0 (:hy,gsistor has length L and cross-sectional area A. It is to 0lu)pc2t g( mnvh15yzgt,:tgbe 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 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 8mw)j* eu,n y/h6yvwj. Wire II has twice the diameter and twice the length of I.* 6nw yye,jv uwj)8mh/ 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 mate hctd)88 ta7gcrial but has twice the diameter and half the length of wire X. If wire X has a resistance ofg8c8dta ct 7)h 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 length L and radius r. This piece of m4ax3nqvy1sn4n,0sd 6 wsbi1u aterial is then drawn so that it is a cylinder w0aqds3 n w,vn1s xuisb1yn644ith 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 ec+uxk9b+x1 x;ov .bwto make a brighter light bulb. He decides to modify the filam c+ ux1ebk+o9;x w.vbxent. 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 sameotf risbr(+ 2n.mo, p9i(iao8 material. The length and i 9ar f(8o(nim +r2oboi.tps, radius of 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 5j(j bsk8e7tkllj n5c- k:;dcof resistance R, are connected to a battery in the following way: “Two resistors are connec- j;(ckdl n jslk55ctb j8e:k7ted 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 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 d1g7fjj)4zv x mwuvt;jyv (d 53iagram has internal resistance 10.0 kW and the ammeter has intey3fv4 jzugjj7xv(mt)wv5d;1 rnal resistance 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 circuit shown to p5ok fml7+b.s2wt *llthe right. The three bulbs 1, 2, and 3 - represented as resisl lfk7p2s*.mo w5t+bltors 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 simp cy5rf5o-1,eocghsapr j+ac 7b+*3 rdle electrical circuit at the right. If the current in all three resistors +jacas35+edg5rb yr ,c*1or-phf oc7 is equal, 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 r(;:/glkvtqralx.rvkdg.) ; j epresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bul(j:dvk.gqtkvl /lxgr.a; ;r) b (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 +p2 og(akde9f NOT true concerning the simple circuit shown where resistors R1, R2 e(2pagfk d9 o+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 xgkosf7;y( (f 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 b7f o(f kgy(s;xattery, 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 identifiedpeh bb c0(:9bd resistor in 5 seconds once t9p(e bh: d0cbbhe 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 following simple circuit haverwkmmtniu6k()9 9dq- the same re-mkq6 m(iukr9d)n wt9 sistance, 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 through thekx52j o ;orbo7 6.0 Ω resistor is 1.kb o;x2o7 5jro0 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 R44y g2vxa+li s1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissip+sai g4vx2l4 yates 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 differentq;mb,z8 j;esrge0 7fa resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and mjze;0gbe8r,7a qs f;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. Wha,+4 wf)/b:wlwrjvf0 :cma ogot is the maximum value of the current unm4jlv:or)0fagwcbw:/+ o w,f der 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 :o)bf (jz)oabwatt lightbulb designed to operate at 120 volts?fbz: )o(ajo) b

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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 ohmrt z fl*5 )t3r)p w8nj/8jqvte resistor that is dissipating 36 watts of powerz/ wej rvjft)3lp)8r5*tqt 8n?

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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 ut3myh2 3n5cx aiz s-/dsed to press clothes is marked "120 volt, 600 watt.” In notm s 35z-na2d/xy3chi rmal 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 fovmk/s /:u/ :-qps- mnpur-azbllowing resistances could NOT be produced by a circuit containing only three identicupp mrbq/s szv-/-k-/uman::al 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 thek v w;4ay z(bu)q3-knrvv ,ys* following equivalent resistances CANNOT be produced using all three resistor,un kyzvq s;(yk)*v4a-w3rbv s?

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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 n9wtkb)h u uw99yhb ;-j +*twlin different configurations. If all three resistt+; 9b-h9jbywnt k*9wh)ulwuors 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 a +u m.3)cf8, x8kmnyalgl .tmresistor is connected to a battery, a total 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 them8 m . xam8,a kl).uyt+nglc3f 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, axu57s/h,q ce-.3vzn e-lo d erre connected in parallel, the equivalent resistance of the cdv3elh75 re .zo,x -qu-/nec sombination 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 fmpp h;p 92j9gof 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to9phmpfp 2;gj9 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 em)xqxma )0 .d- vkqv+.qgwo1ff) 2xt is dissipating 36 wattm-.)tegq xx2. m vxo)0 v1dff)wq+ aqks 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 connect(3ccv/shiy(/ kwp xiom c0h 8*ed to 120 volts. If the price of electricity /phio(8v3(ccm/ hki cys0x* 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 ho:hlv+x1ze;8* 3oc,khvvb*ij j pj5kpw much would it cost to keep a 100W lightbulb lit continuously for 1 y vxhzb*jvj+lik8o:1c ;,ep5* hk3v jp ear 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 currentsbu+-9kiye)vi ( - sc6n3yyo w of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance oy-93(sc u iy-)+w e ov6knisbyf 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 :bcvwayu6( rmba a)ms,.53z9 vah3dt 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, what is the maximum nr va u.9sbhmva5 zyabm6 d3wc(:a3 ),tumber 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 frjc8qxx)p9 3y n0pe2bqd1d0norm a simple circuit as j r3 qn10 )qn0yd2dpex8xc9pb shown to 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 connec4: oyoo (fj bvdcn1r/5ted to four resistors to form a simple circuit as shown to the right.o5v4 nyoor /d:1f (cbj
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 ixe j,n2 tuai-)-q ia(ddeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. uijn a ,q2 -et(xida-)
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 ammeterbores6 p ;.*n ce6hj0r, a switch and three resistors are connected ao6r6e cjp* besn h.;r0s 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 sw64tk +qi*gskl9zqj qg-8)/ 0ahh vwygitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 hw/jg+k iq g8a0v)-q ygl*h9z4ktsq 6amperes.
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 equiv:q1wxm r4h fc9f8:qkqxysflso;3s.; alent resistance? Assume that all wires are ideal, the battery has no internal resistance, an; flq3krx9f om yfc:shwqs: x.8qs;41d 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 to5kbv)y 3fl55rwh cbjnlue5 ., the right with resistancesbyulwv 53 55)lrn,jbfhc .5 ek $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belz, jx7lt,/w4gp0k5erg2w j hvow shows five identical resistors connected in a combination series and parallel circuit to a xl g0vpj4wjz,/2,g wre5kt7 hvoltage 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 connected in a combinxm 3 md;tlij-*ation series and parallel circuit i;l3- tjxdm* mto 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 bulbs are iysd7-ssd3mpf /q,* wb+5 yvvqdentical. Which bulpqms5dy wb /v-sd y ,v+qs3*f7b will 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 ammetwoe ecf*z f0*pcuiarg*0c) v 0;7s4tg er, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammete*er*cgsci4pt fv 0oza*ef0 ;7u g )w0cr 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, ai p);s0uc mfr;n ideal ammeter, a switch and three resistors are connec;p; m0) fcrsiuted as 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an48m 0,5rxzfau h kk 5w+cxey1f ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram 0,h4zf 8 cxmfakr 1+ukxe5wy5the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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