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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 the metal resistor p 9(2lqlf x/u0fz *a6vf+tfg 3b,ulrtconnected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of gblu pvf9a02 / +t*fz rl3xfq(fut,l 6the 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 paralleq u;ewk01edww 7 h+/jjl, the_________each resisejw1w;qw70j + dheu /ktor is 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-p6zprj *dd/(gy3p rv lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This hr6/j3(-* gpy d rpzpdvappens 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 househot 18 tp )zy9 0cc a5 iz6yxyw*(.vkyjhe6hx;qhld lights are being replaced with LEDs. LED is the acronym for which one of the following choice519 j 6ht x ycqyw ta6)0hehvz*;c.8x(p izykys?

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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 arzi/z--ngwb;6 .j:xo+ oifpihea A. It is to be placed into a ch6wjin zz:o-o iip+/x.gf-b ; ircuit, 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 5qclu fmp /q*26r3urgtwice the diameter and twic/uq5cglfr qu m632rp*e the length of I. 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 m7mcey j -lnl- x+)zwm3aterial but has twice the diameter and half the length of wire X. If wire X has a resistance of R the cm-yl+ l3-ezxm jw7)nn 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 material 3pphdp*f s*wci0i *q 0is then drawn so that it is a cypd hs *30*0fippiwcq*linder with 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 to make a brighter light bulb. He decidesr z,by eza71f9 to modify the filament. How sh9 zb17,yr ezafould 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 same materiaroca1yfl +;2si 8, cwzl. The length and radius of each res csi;a+l cfzo21ryw,8istor 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, art2qye:fx (z1 me connected to a battery in the following wa 2( xfzqym1:tey: “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 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 accompanyin+h*e/wp x 6 -wi3jpunmg circuit diagram has internal resistance 10.0 kW and the amme6wx */imehnju- w p3p+ter has internal 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 h,f+uf(ilfpc1 vhtk 3u(-m+ zcgm1 q 8three bulbs 1, 2, and 3 - repre hf1-vcf,h cg8(3zfu 1+m+ktmuipql(sented 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 *mf)n sz;g+l sat the right. If the current in all three resistors is equal, which of the following statem;lgf*+) ssmnzents 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 simple electric circuit compu: odjkx(tnz6t73j ) dosed of 5 identical light bulbs and 2 flashlight cellztd6j nkdot (j3x7 :u)s. 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 concerning the simple circu5p6 t;fsgpdo1ngz0d,l 7x, psig5p; dxospsz,d g,n6 1lf 0tp7t shown where resistors 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 connected in series trm-m,g .xc 5:ap( si6 mbrx.ero a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parxs egarpr-r, x.5:m.( ci6mbmallel 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 resistor i; th-s/akx1t7gpnhqf:opp +6 n 5 seconds once the circuit was ct6-:aq x k71ps;t pp+/hnof ghlosed?


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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 resistor 2wf4ctlbv8oqz4rxk xg)4,3 a s in the following simple circuit have the same resistagqtz44f cvlxbk,aor2w) 8 x43nce, 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 cc ga:q8tl.i * l2oa-ohircuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supp82a.*lolt:cgoh -aq i ly 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 batterggaf :2lba0f56c9+v m/dyx why. 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 vb6g9acxafy fm5d0+/v:lwhg2oltage 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 resistorf ,f/hd4*ly;rcy y0c2hm f;kr s R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, fr*k04cy r2;yfyh/dc,f l;hmand 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 toi(i:d* rf)bb he maximum valu(i odf b:b)r*ie 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 w7k;rdl 3*k69ix q,4swfr05pg, rirv gbsj 3mp att lightbulb designed to operate at 120 vorxwd0pr sj34 kg i3,rif 9 lsqr;p,m6 vbgk*75lts?

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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 re g,3tbsk(5y1ufg 3gq dsistor that is dissipating 36 watts of power?g1g(sdfg,3t kq 3ub5y

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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 vodyt45wk.eg1u s.ktn, lt, 600 watt.” In normal use, the curreu4d5..ets1w t y gnk,knt 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 followinf)b(jim:.(x xz6tl tpg resistances could NOT be produced by a circuit contai.i pmxt() tf(bl6zj:x ning 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 1.0 Ω resistors. Which of the following equiva-rc*inm98f9 hfd hh n)lent resistances CANNOT be produced using all*hrnn8f9h9i mhd -c) f 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)kmt2;hpv x j;lc4 px l+0zt9w can be connected together in different configurations. If all three resistors are used in a circuit, how many different valuhl+4 0czk v 2t)pxtw;9xl p;mjes 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 0axl 76r 6jb, kunt3ypa 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 seriptxjy06anl kub37 r, 6es 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,.zvqj8s,: ta+ -h.:j bxwtrf/c l.v av having resistance R1 and R2, are connected in parallel, the equivalent resistance ofj a c.vvl /:x,+tbf.j w-: v.z8tshraq 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 such t3 /ngyu6n-a vgbtze)b ch.72j hat it has a resistance of 12Ω when operating at 120 volts. What- ju/zbneg gy26) h7t3. avbnc 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 current flows through a 4 ohm resistor that is dissipatbfh6y: ,unmlh3fowk dpzknv7r85 /1*ing 36 watts omnb38hr : l6 p1n,/v7dz*ffhw yk kuo5f 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 connected to 12080 u j; vmwuk w32do;9jk xd(pu31 unkpfi-0nc volts. If tpv9ckm-;ik3fw( k2dx 0uu 8dpujw ;0un j31n ohe 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 clpb i:/2ro+t(g n0 fzyost to keep a 100W lightbulb lit continuously for 1 year at a rat/2l+g0z(n opfi:ytbr e 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 ligd-l5bv v6ae hxh./io5d-z 1d fhtbulb results in a power of 24.0 W associated witdza flv6-heb id5oh- /51.vd xh 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 w az0c3d3n6ryowns a computer rated at 500 watts in a 120 V circuit. If all computers awar3d06zcn3 yre 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 battery7z)ouw *8zgq f is connected to four resistors to form a simple circuit asg7zz* q8wouf) 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 conpvy 8i 5kag9q41lo)fqnected to four resistors to form a simple circuit as shown f8q)oqv5lyg 4kap19 ito 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 an f4q9j7 8vjyshd three resistors are connected as shown. With thqvs948yh fjj 7e 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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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 4)yw6g 1yj; 4 fudjm, dzoqgghob a)p .a)og81switch and three resistors are connected as shown. With the switch open as sho)gqyj.odfz 4gu81 1ad)ybm pj,gho w)46ago; wn 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 idea/cp f 0a*l79lgh:szx ,tfu 1fgl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amm/gust* 1 0plfx a,ff9lh:czg7eter 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 e;d/ 6ajm5mb5 njtkdj.quivalent resistance? Aajd 6j55t.nm;/mk dbjssume that all 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 equivalent resistance omajb.ucfyc vaw ,y.6ag(7 k// u 8)yh+ 1aibabf the circuit shown to the right with resistancafam8h.+ava / b(7gwb ).iu,ca1bck yj/y y6ues $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 reovpnr ei5 scb993u7dr /.1fiqsistors connected in a combination series and parallel circui93cn5r./f 7sv9uir i1p doeqbt 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 showsnbfa, 2.4 )aixp y7g)c6qka 7 iqz7szc five identical resistors connected in a combination series and parallbgik.q 7nyfaa7xi p z ),c)4z s76aq2cel 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 identica 2. .z4lagmekvl. Which bulb willgva24.z.me k l 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 ammet :jmzy0+yf007gw:ao ha 9llx ger, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the am:xh09:j 00g7yaalf+go ymwlz meter 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 and three resistors are conq:y3(sf b:r i6ytft,s nected as shown. With the switch open as shown in the diafy63tsq,i( : btf:srygram 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 and three zv. rgj19 w29ugcx4lvresistors are connected as shown.ucz1vv .gw9l94 jg r2x 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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