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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 exists in (.qfa2h ,kbsd the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow througqfa (.,2 dskhbh 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 i5ovinha/ wuw-)q21ja xr *s s /2osl7dn parallel, the_________each resistor iq*1wav)25ljhw/o-o d 7xsunar /is2 ss 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 lightbulb gm oc*x 9vvd+j29 qb6bcauses the filament to become white hot, while the larger wires connecovd x 2gbb9m6+ vq*jc9ted 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 househnb l h3l6+8,,w4 h-rpuvy qhnaold lights are being replaced with LEDs. LED is the acronym for which one of the following n hpvh,nula8h,-lqry46 +3b wchoices?

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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 arv*rkq8q 6q /4afrkf i(ea A. It is to be placed into a circuit,k/vff*aqkq8 rq64i( r 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. Wire II has twice th or 29)o tmsjt3ba-yc m+l-i+je diameter and twice the length of I. If I has resistance R+m -s3oolbm+tj c92 ty) j-ari, 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 diameter and hokz-v(g *+olo alf the length of wire X. If woz- (ov+ kgo*lire 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 x8fdyl55 h.,a:zw nj y /gw fxd91k-igr. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of this pro1ywgxjfn.l h/,- i5ygz dfw:a9x5 dk8cess?

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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 brighter light pdiq4 d+ +u4fobulb. He decides to modify the filament. How should the filament of a lightbuquo4 + fidp+4dlb 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 mwl0aixbv03vz v..yxce8 www5p 95mk :q pxf52ade of the same material. The length and radius of each re 9xav05xw3. lem5b pfykww vwq:.50pc ix28zvsistor 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 resistorgmm,3d.c:lf fgzlbk.8u((ccs, each 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 third resistor. This set of three resistors is connected in series to a fourth resistor.” What is the equivalent resistance of thig8((mcc3kl lmz c:u.f.fd bg,s 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 hoax erb. b ff9:b8,an)u;v4jzas internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading z 4e):,bv8 najxbora .9ff;ub 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 circuitqkgvs29*9b7 d bj yaruz -bzz1)*k )qy shown to the right. The three bulbs 1, 2, and 3 - repkkr )bz)9s9jb adu2-g*yyzqq 7vb*1z resented 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 at the :kju3z v1b* 7kmreo +s c79cssright. If the current in all three reus:ebo css k*9vzk mc17r7j+3sistors 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 sim.dei-qrq31xh :k* ohhple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb hqh qd :hkxr3oe*-1.i(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 trg* 3lya- xq dvj;p;u;pue concerning the simple circuit shown where resistors R1, R2 ax duyl-gjap* ;p;vq ;3nd 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 conne( 1(hayipec7qaftmk7 h 8xs1+cted in series to a battery. Bulb X is brighter than bulthym +a7e1ifhqs8(p1k x (7a cb 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 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 tzb 3 e.y1 ,hsdu 48.p 8wi3jjrdb/wkgghe identified resistor in 5dw8sr,pb3jyg. 8d u/kwj. h1 4z3eigb seconds 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 in the follow2jv:oqq4 7z(( odl) yzem:gw jing simple circuit have the same res( jzgvl qjw2:o7do)z:y4(mqeistance, 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 hj wk y6h)z1 ozky.a04through the 6.0 Ω resistor is 1.0 A. What6zj0k .hzawoh 4y1)yk 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 serieswoh yhn)+3(n/ ey k7cc to a battery. Suppose 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 voltan3 c (/wce)7onykyh+ hge 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 paralqi/rh3: hg7rq(5kv wf,n skg*lel to a battery. Suppose R1 has 2V ac:7f(gkr/rnqi , g3vk*h5qshwross 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 coil is rate v+5y/,al.x c sxl7i7x ehbjqo1u4a8dm)/k jud 1200 watts and 120 volts. What is the maximum value of the current under these condi iud,vla 57)/ky71u 8qj/cxhbma x+ l e.xj4sotions?

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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 pid4wzax/ n,0lri fb-s3 y:e8at 120 voltsd,r3xpzi0nb4yf:w ai/l8 -se?

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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 resistor that is dissipating 36 wa4qc afoi ke 72;sn/a3dtts of powerfce aa7q/2 4dko i3ns;?

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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 mar:ia7ot :fbdp vs:a/ 9bked "120 volt, 600 watt.” In normai:d o/ fb:7p9tav: sbal 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 producm8l; 5kb 25u(cus:s+e zepalzed by a circuit containing o55am;pklu (cl ss:8eeb2 +uzz nly 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. Whun a0- hkly w;3e;vj q6io4u(qich of the following equivalent re(av;lu;4 -quh wyno i063jeq ksistances CANNOT be produced 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 va jz(j wcpkvsn+z.y+ 40()kqdf lues can be connected together in different configurations. If all three resistors are used in a circ k++z 4).ps0 djc(qyfwv(nzjk uit, 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 to a battery, a total power P ianr;sh nu9* 7is dissipated in the circuit. How much ts7h;unr n*ia 9otal 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 connected i :kb ck- 7no++obuoxb66d /onnn parallel, the equivalent resistance of the combination is 5Ω . Which of the folkobd:/o ku o76+b 6nnbon x-+clowing 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 operajo;269pi i*fawzgo rd t 829pvting at 120 volts. What9 o6t*d;29g r8oa ii2pwvj pfz 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 currr(s8kgij /nj ,ent flows through a 4 ohm resistor that is dissipating 36 watts of pignj ,k/rj8 s(ower?

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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 inb9kw7t he4fkhqkzy 1 lgh40 :81)hx draws 13 amperes of current when connected to 120 volts. If the price k4nhil 7b0ezk9) g1ht :wx4q 8hyhfk 1of 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 keen0 ;ckr q-4xuip a 100W lightbulb lit continuously for 1 year at a rate of n4- xqric k0u;$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 iv sqg q+49a9.oz vbsc+4nir)kn a power of 24.0 W as aq4 +4r9+o vbcinqgvz).9 ssksociated with the 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 wm5k6t dinp,jr()lb d-f* i/byatts in a 120 V cim fli)*d6r(b nypitk ,b-/jd5 rcuit. If all computers 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 resistors to form a simple ci gwlih)v16wa:qzw3//+ez xuk rcuit as shown to the righ kl+6vg xh3:/q1/wa zwuwe i)zt.
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 co52jdrjh: x8+i+trui 7j0 1yimc yp, vfz4vvj5nnected to four resistors to form a simple circuit as shown to the r2v:8y7 cmr10j, u4 xr5jjf vhiyji++5vi ztpdight.
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 t :h/:bgjxy6qea1b pa -tj)yi8hree resistors are connected as shown. With the switch open a)q6hby a1 i :tgb8a/-px jejy:s 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 batteryi 2vo dvt)vu7:, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open aiv :tu)2 v7ovds 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 a4xwy ,1r-arig:uqq nh: s8in;nd three resistors are connected as shown. With the switch open as shown in the diagram th;wiq4nnus,gr h1 xi::-aq8 ry e 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 shc-+iuc,, eei u;schqi5 ,nz 7aq:r2d3 annh; aown to the right, what is the equivalent resistance? Assume that ale izaad 2;a:,e,cn,;n7q+ih3c nriscuhq5-u l wires 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 equivalenttcg; fxn.td/ .wkfh-4 resistance of the circuit shown to the right with resistan-x 4tgf.w.dfnkt ch /;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 connected in a cl9b9ch 9pi xq)ombination series and parallel circuit to iq9cp lx99 )hba 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 co2c nrn *vnew0-u lmb02nnected in a combination series and parallel circuit to a voltage source. bl*um e-c0v22 w0nnrn
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 identicawaf/y4(/ y/hdetn-p w l. Which bulb wilhe a/yf -t/nw4/p(ywdl 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 ilkd.v-g uo8* tdeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in -t.kvou gd*8 lthe 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, as 48fcsz/8j qglvy)b.n ideal ammeter, a switch and three resistors are connected as shown. With the switch opl8zc4sjfvy.qg 8/)bs en 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, an ideal ammeter, a switch e1pwn 8;fqjtsga1 l5 4and three resistors are connected as showeps ;4t81lqgjn 1aw5fn. 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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