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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 ho/f;9p4irhs eq:p 9zresistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the dirrih f ;/s:oqphzp 994eection 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_________eachu7ucdu8axq8xj 83jf0nhjw 4q7c mqu *g ,6u2 u resistor q u8n30auw ,x6c8ugj 8ujdj7xmq7u*42uhcqf 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 lightbulb causes kwh wwstd;,2s6rs, s6c ea l /..c4mgwthe filament to become white hot, while/.wse 4 6swwcchwg 2 t.; s6sra,ml,kd the larger wires connected 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 household lights are being replaced with LEDs. LED isncggq ) wclx( ts)no 76744*gvzkz w4i the acronym for cn g4qz7k)sxt ozn ic )v*g(64 wg4w7lwhich 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 gc+hhwl7/ (*ac g /lmx ,wr2iesraphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must c,2hshaim/w*7r xlc g(+l/ e wbe 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 wivtyv)x 4 02 ou w 4wnjysqe8vypcx15z /1*oho.re II are made of the same material. Wire II has twice the diameter and twice the leoy/5xuj.4ow 2qpv1cn 0e 1v)y xzow8*4 tvh ysngth 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 material but hedd8; fc b(2 r)h3umrm :ag0s+4;/ khybatkiias twice the diameter and half the length of wire X. If wire X hagkrbi m8 i 2dks f 0;y;e:t+/cha(d43bharmu)s 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 re w0njf 4gb f-,/qi og-3ggd,w4macj 3xsistor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What hapa34g-, ffj,i/wom gcw-4qjd3 ngx bg0pens 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 Ediso8hekoloi8u 7 +jl eqwuw5 3b*6dtw)4in wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modifidwb 5*7)ti64q3 eu l8e uik8wh+woljoed 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 materia aw)cyc/l* spaq/ v8v,l. The length and radius of each resistor *l,)/vp8 cacqy/ wv asis:
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 re.wv-s +da lnl(sistance R, are connected to a battery in the following way: “Two+wdls( n-l .va 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 theywbe : hy01lmp76u jj1 accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistanc:y j1jb1he6uwl0 p7m ye 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 ciry pan v* c8,8ckec-q2hcuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagramc8*8avqpk he-cnc 2y,
- 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 right. If the curr38m zx43ce-7z wxwesrent in all three resistors is equal, which of tzsc43wr x z3xme -7e8whe 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 simple electric circuit compohie .)z 9mcd 2y5h /7lfeajr3csed of 5 identical light bulbs and c/erljd 5m.y a) c9h ihf732ze2 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 true concerning th t0-rl(btj f2hm5n ig8e simple circuit shown where resistors R1, R2 and R3 are have equal resifi lbrt( 5820j-tnmhg stances?


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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 a 5h0lrs zf6qy*ndY are connected 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 other to the same battery, which one of the following choices best represents what zh56*sl0 qyfr 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 resisc:mxwj64 2d9;gcgcb /za 7vr qtor in 5 seconds 9 ;g2:6c4zjg mdq7w/ cacxrvb 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 followin m0s98byp (cxv)ef9r jjaz0k; :vhor,g simple circuit have the same res 0opjm0)hab z vy s;j,crkr8x :9v(9efistance, 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 ths4-8xfb2j z8xd4esyu-b b ed,rough the 6.0 Ω resistor is 1.0 A. What is the z- 2d ed,yb4bb4f 8xsex-8 sujpower 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 bwlv;lxejke.yq m, (p21cj7/ v 3jpig6attery. 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 voltage/1.jyp6 (wcqxej3ei;2 vgv7 jkl, plm 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, pj0dk-05 if* kfag2po R2 andR3 are connected in parallel to a battery. pda5gf ok -f*2ki0p0jSuppose R1 has 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 coil is rated 1200 watts and 2sl3qzc -af z/120 volts. What is the maximum value of the current /c2als3z-zq f 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 1201hrqg 83 cw -:j(rmhqh*g o4za vo3g qmhr 8(g1o r:ac-*4hjq zwhlts?

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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 res0+-iz.* jyaidga /gtwf znm6s 5bam7 )istor that is dissipating 36 watts obs5a)t/wjmmay d6iiz7*. 0fn- a g+zgf 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 i0:qe 4juq,df is marked "120 volt, 600 watt.” In q04f: j eduiq,normal 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 prod6)a7ssu jmix 1uced by a circuit containing onlyxi6) mssua7 j1 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 qn )(qmd r2-hrthree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produ2r-rnh )d qqm(ced 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 values can be connected together in diffel xjr9k-o vs c/u57gq,rent configurations. If all three resistors are usedgl9v ko cu-,r/57sqjx 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 resistor is connected to a battery, a t ejun6yy98fu ;otal power P is dissipated in the circuit. How much total power is dissifuj y89u6;ynepated 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, 5*1xqhy -df x5ticb/t having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is5*txch btd i/q-51 xyf 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 1 zp(w/vua.;ve1ailvz 1.*yqp,bddpc7f;f 4g 2Ω when operating aty*.( bv zp1pc7a;qez ./vwudigp vdlfa;1, 4f 120 volts. What 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 dissipating 36 wa*qc2-fca, exa1y q *gvtts of p g,xy**2vc qa qa1efc-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 draws 13 amperes of current when connected to 12 0j d:dz1vi0hp0 volts.0d:hjpzd1 0vi If the 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 cosmeyh,cg t p23)yq:lo,1v vcn9 t to keep a 100W lightbulb lit continuously for 1 year at )h 1yo3 pq:,2ve vt gmc,9clyna 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 lightbulb resultsqwq*vh b689viup0hu; in a power of 24.0 W associated with the bulb. Which one of the followingq80h bvuhui*;9 wp6qv 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 watts in ayo h52s d0aib;k0ngu - 120 V circuit. If all computers ahyosudk0b a-2i0n g5;re 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 batter :w ;r3 fnamg+y+9qym+z 7edbxy is connected to four resistors to form a simple circuit as sxg 7a+++qme yy9w; bnrf :zm3dhown 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 four r7yk dl1)jh:mu9b ses ,esistors to form a simple circuit as shown to,u9 byl:mhsk7de)sj 1 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 and three resistors are conqbi0jcno,kz0 0ck2 2(t 3 nhgvnected ,gnzj 20b 2( okncvck iqht003as 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal batterywyp-/ fl2 )7gpn v9puk, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open)lk7yu v/gwp 2n p-9pf 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,;wam)a6h8o 0dniu1t f an ideal ammeter, a switch and three resistors are connected a af);0t umhw6od1ni8as 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 resistanhp/ dj1g/6t 9)4tt a *ygrxoqfce? Assume that all wires are ideal, the battery has no internal jgr f)g/1ty4tt69 hopa/x dq*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 t5) 3,2op;ubyw4u+jz 0;zzpam fi wzs whe circuit shown to the right with resistjizs buu;y w0z24)f,wo; +a3 p 5pzzmwances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 -we(cgm1 thc 3connected in a combination series anw ec- thc3m1(gd parallel circuit 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 t.-ha/d :-gm v7y lfttshows five identical resistors connected in a combination serie tl-tam7t -:vdh/ygf.s 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 diagram, all of the bulbs arq2-w6e bmpb83 1-slz fhrvqm1e identical. Which bulb ws bm21b qp he zqr6f8mwl-13-vill 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, m+by 57yct z tc+jhe*8an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the5z7+8*tmb jh cy+ tcye 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, a.:vld hrvp5c (;3+k3ahi oxcin ideal ammeter, a switch and three resistors are connected as c3ia. +;l vhvhi( :r3ocdpx5k 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, an ideal ammeter, a switch and three resistor ig, wyy88qqog7(b6/lcuto3 zs are connected as shown. With the switch ( /qgob38q yclwog7yut8z i6 ,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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    总分:50分 及格:30分 时间:不限时
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