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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 exise+dp ); ia64bdwkeztyv o;* o7ts in the metal resistor connected to the battery. Which one of the following choices best describe avkypeoo e ;d);wdti*7 4+bz6s 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 parallewc. o3phz)a8mt hkao+: jtg 7(l, the_________each resistor is tgtcmoha)8aw +3:h(jt o.zp7k he 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 fil-yhfognok r ,x e2(32lmal;1zament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happen( fl2o- ;y1zgax,ol2 h 3mekrns 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. LED is the a7beyv,w2hxy .9c jbf9crony9ch y.bewf 7vyx bj2,9m 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-sectional area Axdmxechi6nh :-qd.9 :. 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 the cylindrical res.ix ch6:d-n d9: xheqmistor?

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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 twicsh3x8wop:8 ;jdu vf+75xuxdre the diameter and twice the length of I. v ws5rj ;oh:d878+3xxupuxd f 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 the diame3d rbzn -.ss 1k8rixy:ter and half the length of wire X. If wire X has a resistance o31 ikbr8.y sxz-r:sndf 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. i)ty s5po( ifn;mg47i This piece of material is then drawn so that it is a cylinder with47pifmo; isi nty() g5 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 t0 5g9o5qb -j-vk pc2kcfudt*ro make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be mo 9b tur5-*-go2 vq 0cdfpckkj5dified 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 material. The df)r.r5g0bwnq)i u. ybp u;(y length and radius of each resistor is: 0u)bi u d;f qgybywr.n.r5 (p)
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 trpp( 5mgj1 q:ro 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 three resistors is connected in series to a fourth resistor.” What is the equivalent resistance of thjrqrp 1:mg (5pis 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 diagram has internas7yzyov8t p)* l resistance 10.0 kW and the ammeter has izy)87tvys*p onternal 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 the right. The thr+i twftbnq :r78t2u8xaf b21qee bulbs 1, 2, and 3 - represented as resistors in the d2+bq8f: q8f7i2tbua wntxt 1 riagram
- 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 sim52f.pk s wxig1*zq rmuon; n3)ple electrical circuit at the right. If the current in all three resistors is equal, which of the followin pn xsq5n2w *f);13iomkgr.zu g 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 representa8hcuui a.n23s a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which buuc2i3 ahn8u. alb (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 concerning the simppcjqkj5v a.-lqj 1-* l7rx/ccle circuit shown where resistors R1, R2 and R3 are have equal resistances? *v cjx5 l-c.j a/kq71 rpj-lqc


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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 serueble;6i-5b qies to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected i i6 5qbeeu-lb;n 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 resis;a pzr7 fxymn0 -;d+)wkflmi0 1feb )htor in 5 seconds once the cihm) fb;1yi0kle-m w0p+a); fz7fr ndxrcuit 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 iny u//ksmjv4b,a .g usor: ,e6v the following simple circuit have the same resistance, which would dissipate the greates: gv ke / ro.bva/sm6,,j4ysuut 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 k y +488mmklbrxj8ha. diagram, the current through the 6.0 Ω resistor .kjk8ya8rl xhmb+m 4 8is 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 battero,5 h x5/jn+dn5f6, exklcibqy. Suppose R1 carries a curren/ e5ic, qknn ojf,lx 6b5x+h5dt 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 an9,8 0lrq vwop sif7d/bro7 :wadR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the currentorf :/bsl70oriaw v,dp 987w q 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 t 67wn1abtps9u qh4v7p he maximum vub 4 sp9h67qa 1vwpt7nalue of the current 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 lightbulb designed to operate at 120vn- /+uowzzn9 voln +o/uzn 9wv-zts?

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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 flowshzfu.)+h gmi fui91nw6y+ v-c through a 4 ohm resistor that is dissipating 36 watts of+mi -6cgyunuvwh)z1 9f.h+ fi 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 marked "120 volt, 600 watt.”.7j0(f kwgty7 ijyq qm9x x(6f In normal use, the cuyf (jy jm6if77xw 0 kqq(9gtx.rrent 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 7, . jy-yxodk7q ci,zofollowing resistances could NOT be produced by a circuit containing only three identic,c.z-q7io ,jk oy7xdy 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. Which7wxgf )ot(*hs3n(1hlklp tbmi q 682q of the following equivalent resistances CANNOT be produced using a(w) f8sk qlngq6lp tmih7xt2o *(1b 3hll 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 con* 69+9)ikk liidho ypnnected together in different configurations. If all three resistors are used in a circuit, how many diffe *il6h9yd)ikn k9io+prent 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 total )4 do, i4mfo(3b xne(ka+qpy hpower P is dissipated in the circuit. How much total power is dissipa(o x qpky(+n4bei3o), da4 mhfted 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 resisy nmk7 *3f+df* olq,oitors, having resistance R1 and R2, are connected in parallel, the equivalent resistance o+ q 7 ookflnyd**,im3ff 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 suca/ vrywnwm83( 2x.wpyh that it has a resistance of 12Ω when operating at 120 volts. Whataxy(/wyrn2 v83 wmp.w is the 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 currentzhie;w6/ i4fl flows through a 4 ohm resistor that is dissipating 36 watts of poweielw ;4 fz/i6hr?

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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 connected tx xq+a2j,.t) wsk/9xr4lxz qbo 120 volts. If the price wzxb+asx j.ktxqr lx,/94 )2qof 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 100W l*h)xko2o, z,67xxn pf-e u pmaightbulb lit continuously for,xzu72xpno,6*)- mo fhakxe p 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 lighdm j0oa) 7d+dzg8nq4 7t jxvf.qia7b 4tbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the ligh amzfo 8jdddg 7aj0qv7qxt+7b4 ) in4.tbulb?

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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 50ggvw7p 7 gl,z /;ao6jppf3 5wc3rgqj40 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 number of the computers cp,w74 j pzg3j g7r pwq3;vogc 56ag/flan 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 isgra a g8d(zz2) connected to four resistors to form a simple circuit as shown to the right. r )z8a(gdg az2
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 p xai8j bz/i :t-;li3pui;k9k four resistors to form a simple circuit as s9;:papii 8tx ;u- lk j/3kibzihown 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 iri*v vsa3b 9g-deal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere9rba i-3 vsgv*s.
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 q: 6ohwwa kz452lw3 mzideal ammeter, a switch and three resistors are connected aa4z5mzwwl2k q3 6h ow:s 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 ammet6e*t4 cxn/zvver, a switch and three resistors are connected as shown. 4v /vxz*tnec6With 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 i1;l :7 lrbamko, a ,lr3wlz9sol:rq:ys the equivalent resistance? Assume that all wires are ideal, tr all ,l 9b3olosa;7k: :,zr:rmw1lq yhe 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 the circuit shown to t * mrd7mynmz6yoii*o-.(je 1c he right with resistannm oy*ir. cm*i7j(6dym1 zeo-ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 cont+czrjt3zs:.w ;pvl lbh). y 9nected in a combination series and parallel circuit s);+tr 3c.lz y.vzl9tpwh:bj 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 u5gnqhg 17x :dl :h6byidentical resistors connected in a combination serie:ng:5uqhl6ydh 7b g1xs and parallel 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 diagra oz6i rcj(-)ckm, all of the bulbs are identical. Which bulk( z6-ocj) ricb 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 ammeter, a switch bmw,z7 0 .d7s)al bdfjand three resistors are connect)bas07 7, dzbj .mwdlfed as 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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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 p;v 65ld*l9zt0, edr aubk* gpand three resistors are connected as shown. With the switch open as shown in the dlru5lep0; kb zg 96d *adtv*p,iagram 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, anyxr.(l p.,o. k; dpgub 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 amperkr u pldb;g..x(,oyp. es.
When the switch is closed, what would be the current in the circuit?


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