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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 eh f gpz-0zi6+5*zki fjxists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resist-k +i gi zp*6fjh0fz5zor 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 paq9;c4 czlm* dhrallel, the_________each resistor l*hd4 9qmzc ;cis 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 lc;p c+d26f k*d e7pxieightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb ec 76+ f xd*ipc2d;pkeremain 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 lightsyay9s v g7dl4tv nc3d ++m-:fc are being replaced with LEDs. LED is the acronym for which one of the following choice3 4ldct: s- mvcgvy7fdny+ 9+as?

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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 lec/ltyhz 7v danxp32)(ngth 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 on3tvazx)/7p h(cd y2l ld 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 has twice the djhto+5d2eu)3 o z*q vw)m(in giameter and twice the length of I. If )uh+gm qto(o25idjzew3 v* )n 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 mne3hwzu: 3a . ooh:v/7 gzj8wge( 57+nxxxmpn aterial but has twice the diameter and half the lengthnx oh (j: +8wzguneeh wm:.v/p5 z3ox7gax7n3 of 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 length L and radius r. Thisl * o3mc82meej piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material beca jo *ee3lmmc82use 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 mh:eeu og n4 l2cwy8.y.tk*. ubrighter light bulb. He decides to modify the filament. How should the fil n hwtg.yl.o :yucm*.eke4 82uament 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 same mat)s49pt cd n*ceerial. The length and radius of eae9cd4 cts pn)*ch 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 of resistance R, are cozaixu15exu-01p6 rpdz s5 yk (nnected to a battery in the following way: “Two resistors are connected in series. Thizu6 iy zkuxsed 51rpp10 x(a5-s 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 th )46(;f6qigzumepdx a e accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mAa)4 dz6gqmxu(6ip f;e . 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 rig.uwf /18b ctlyht. The three bulbs 1, 2, and 3 - repres1.yuw c/t8lfb ented as 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 atnmcpk kk(;y9-)yr ep7*k za.y the right. If the current in all three resistoryp.nc9k rz p* a(k7y)mky-;e ks 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 represents a svkmbb9 / l31sjimple electric circuit composed of 5 identimlbb 1s /jvk93cal 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 following statements is NOT t; d9-s 2ncct0nn38lk mfmme(x9k la;mrue concerning the simple circuit shown where resmm-tn;92edc 380 s ;ka lxmnk9nfc l(mistors 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 c /y/;bzsea59jwj7 m ononnected 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 othembs 9wejn/j a;7oy/5z r 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 -+6vcq0+uak fpx8emcwill pass through the identified resistor in 5 seconds once the circuit was closed?+6c ua-xef 8k vcmq+p0


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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 follow.e mk6cd.ig:b 7gc:wiing simple circuit have the same resisb.7i:i: gkm6. wgeccdtance, 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 dirhmf. 9. gy(w69 aocl3eek a5kagram, the current through the 6.0 Ω resisto9wo(hf ack leake5.g 396.mryr 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 connected in series to a battery. Susstmr p,9);k nla 9o3qppose R1 carries a current of 2.0 A, R2 hasko 9m,rtpl)9n3q; sas 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 connecue c ;bvblk(10s n,irj(g..vy ted in parallel to a battery. Suppose R1 ha (ncv;bl 0.bskvyri1j(u.e, gs 2V across it, 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 coilc2 quy 4oib20v is rated 1200 watts and 120 volts. What is the maximum value of the curu qi0yo4 b2v2crent under 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 watt lfr.2u n9griist ege;7 tw00 3kightbulb designed to operate at 120 voltirg9. egfn00et7i2rs3w ;ktus?

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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 ohy8qp9:b 1ui m qn0irr/m resistor that is dissipating 36 watts of po qynbi9p0i8q1 mrr:/uwer?

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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 z dl; qjdk8s8z 079yw 8izjrjy-;- llfclothes is marked "120 volt, 600 watt.” In normal use, the 8z 9jiw0fyl--dy8ks 7lzqzr8djjl;; 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 N,y x 2f;npq1yyOT be produced by a circuit conpxqyn yf,2y1; taining 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 1s-u1gss1ks lt e-gj 4:ky;z q(.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all thre;gtu-gk :esyjs4-q1z k ssl 1(e 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 u v8(iz g,g1()auf qnbbe connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be pfzugbi1)va, g q(8 n(uroduced?

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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 resist 14cavp+ sq-dhor is connected to a battery, a total power P is dissipated in the c4d1qvahp s+- 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 conqj6dl6jk)x0 ,qz w i mmu/:su(nected in parallel, the equivalent resistance of the combination is 5Ω . Which o6mxlmuuq /s:jj 0k ,d(qwzi6)f 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 of5fw yz9( xyu2x 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 k5u2y9xf( xwzyg 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 floilxgmo 1-t 6l,ws through a 4 ohm resistor that is dissipating 36 watts of powl6,m1gt- ix loer?

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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 ampere:h *-zpd3v iucs of current when connected to 120 volts. If the p3ud- h zvpi*:crice 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 kee6kog +- f,p1zdz)e eybp a 100W lightbulb lit continuously for z pkof+y-,egezbd16) 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 curredpunpss hf61h3t dhdo- 6 x5*(nt 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 of the lightbul*hx1 sd5tsp-duhp(n o6hd 63 fb?

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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 tiqe7/(x 4wseawf (kmcqf+;0 rated at 500 watts in a 120 V circuit. If all compute s etaexmwq(k/cffq;i(7w04 + rs are plugged 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 resisti44pxo mx 2y1rors to form a simple circuit as o21im x4yx4 prshown 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 connected to 3hmwmjle +*dr2ld)b )ur f7f+four resistors to form a simple circuit as shown tormd*+d+)3) f 2 ulebwhm rl7fj 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 idahw0cwwz+ls ;3 l;,wceal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the am+wlw,zchl;; w3 w0 acsmeter 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 batteryr5rh5i h3s2 cp; l 1sy68byakc, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes3cp;i6hs1y 5r b c ls8kray2h5.
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 res 8y .qs9-amh.thjmvfh0d p3bi, g1*rtistors are connecjvg hmrayi-h . d qms*1,3t. bfhp89t0ted as 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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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 equivalent resista;h tsfk(t*zv4 nce? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have iden;zf4*s tvh(kt tical 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 sci9re6wky.03nl(mgui*tj* *s uib y: hown to the right with resistak*tgscbe *u3j:u9iyl0 m ii6.*yw(rn nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 c+gmpima 1z18 l0kq s-a combination series and parallel circ1i80a+sm p1q clz- kmguit 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 c),fb 1amssdz/sj- ++dtwrw/2: auxx-w oac1five identical resistors connected in a combination series and pa2axubtdrocm1x/ s s-wf s+w,aj/+w d- z c1:)arallel circuit 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 bulbs are izf.ds9 g7)fg udentical. Which bulb will b7g)f 9us.zd fge 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 ammeter, a switch po,xgd2 wdev0j ;,8f mw,ctv9*z*ft pand three resistors are connected as shopmw* te,t ,w*ox29f p jd0,cv;fzvdg8wn. 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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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,7-xlew-1eo7d ymcenu b ,n;;a a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter read n ;-b,eyoa-duw;1n7mx7lc ee s 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 three rehdp na+//du+r sistors are connected as shown. With the switch open as shown in the diagrud dra/n++hp /am the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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