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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 sh.js1)eh a(4 4ky*nu upyafl 2zown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through f*2s.()uk puy aln1zya j4e4hthe 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 connectedjyqdquvv/- 2c o4rn52 in parallel, the_________each resistor is the samevc-qq 5du/yj2rv2on 4.

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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 lightbulk, :z ht+jl;rk.dny :wb causes the filament to become white hotjydk:. wl:+t,k rh; nz, while 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 is the 6.nanmi- qhf2 acronym foinfm n a6qh-2.r 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 re dbl d0)kim0tv.3vwd :sistor has length L and cross-sectional area A. It is to be placed into a circuit, t ib:w).3 00dlk mvdvdbut 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 kv;dnx 2+gv0othe same material. Wire II has twice the diameter and twice the length o+vgxko0; 2v dnf 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 bun p2t1kphc 1 qupl.:5d0 )r/ ou8auisdt has twice the diameter and half the len/ pi2uuro1 ku5d1sn.0q cl p:t8hap)dgth 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 radiufd,f0ef 0xi/v2zghds f;1(21i miytvs r. This piece of material is then drawn so that it is a cylinder with new length imht /efz f1vy d0i,s(2fv;g1f2i0xd2L. 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 b z7s t9fsf9w1krighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce9 szfks9w7 1tf 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 resist ah(jf:kq mzd70 n9.;nc2lm ggors are made of the same material. The length and hz (ag;njnm:0g 7k2fq l9.cdm radius of each 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 connected to a batter,ib2opo 0pf fb pvx1w7;(d:w8m8rc ; qi8heaey in the following way: “Two resistors are co2xb8a,fd mw ;81ib;ehoifop 7 (0p8erqwvc p:nnected 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 accompanying k-tb kyy/vd 9xe(as75 circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00/7-b 9(xyyts5 dkvaek 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 s17 3nyxgc-sql:b pv7 chown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagramc7 x gp-ysv bl3nc7q1:
- 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 jrl0hyq./cw2io 0o0 qcircuit at the right. If the current in all three resij/ 00. or0iq whyolqc2stors 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 mh7upuht1 3c 2qjk.+qkfo*(r right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cell 7kufkq*r21mh +t3h.qcp( juos. 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 simplx 364/l-i7ovghib.r 7gyjyxk e circuit shown where resistors R1, R2 and Rojgy6xhbl y /.kg i743x-i7vr3 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 serieshcp x3mj5*z 6b to a battery. Bulb X is brighter than bulb Y. Assume all circuit elementc hzb5xpm*j36 s 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 throk71 eoy; ;1rt ,( ttdjmyk7dlbugh the identified resistor in 5 seconds once 7be 1m;7yk y, ol(kj1 tt;rtddthe 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 following simple psgd hj-u kfl53p/f6nd5ik) 6 circuit have the samed5pk i5/6jn f ul dgsp3k6h-)f resistance, 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 through the 6.0 nk.1gqe6v dz 6Ω resistor is 1.0 A. What isnd6.v6eg z1 kq 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 battery5+ x harxth47x. Suppose R1 carrixx5+7hhtx a r4es 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 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 andR3efr2sx,(hm c1 luf bc)su5no( /8om v8 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipatesux bfe2ms(hcn81m(lr)f 8 /,uov 5soc 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 1os*kvm wa l66kzg w19is the maximum value of the current under these k6v6kw1g9ow1*l masz 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 resis3cg xxy *y8 lgx9tx,.s/ylk( jtance of a 60 watt lightbulb designed to operate at 120 volts? (s8*g93lg/cx .yk,tx jxxly y

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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 di osn9 m+9 33 o 5hv0kt0cu0ghztoyge.issipating 36 watts of pow95uns0h0c9 m y v toe3+.g3z0hoogktier?

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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 t) (m8l;dzk hxgwhz 6t-o press clothes is marked "120 volt, 600 watt.” In normal use, the current 6h8z g;l (m-wt kzxd)hin 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 r7kqsi 08 v8foresistances could NOT be produced by a circuit containinrik f8q0 os8v7g 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 8 j99 / itn.ildbkzor6following equivalent resjil6t .kn99ibrz d8o /istances 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 values can bb;r4yqi. gp/ aj gtw 5j8rtd/s8p55whz- y.dae connected together in different configurations. If all three resistors are used in a circuit, how many di - tq irjybja5/zy;h5dwp8 8r4 sdgg.wa5pt./fferent 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 is 6 7ol6 kbluu z y( q/sy**vdwp*bba*5vdissipated in the circuit. How much total power is6dus (b*oy*5q**vap7lyklvb /6zu bw 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 resis 7 gvpc7a8j:lmtors, having resistance R1 and R2, are connected in parallel, the l7 cpag: 8jvm7equivalent resistance of 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 that it has a resistance of 6m3ceth.3xrf)k b-(qv dmuw1 12Ω when operating at 120 volts. e3xw1d .c6r-vthmq 3k(mu fb)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 dissipat10miz.yhq s(fcf7 9f qing 36 watts of p.ch7iq9y q( fsmz1f0fower?

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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 ampeeq2 otu9g apvjj50a; -res of current when connected to 120 volts. If the price of electricity is 9jeq;avp0o2 uag5 tj-$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 lightbulb lit cont1 .wi-r3su,vw xc)qiv inuously for 1 year at a ruc3, vsr)xiv -w1i qw.ate 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 m)gbz*hzsp c(h l0w*6A through a lightbulb results in a power of 24.0 W assochz*m0*lzgw6p )sc bh(iated 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 ownsx2l pkq-8(c -pzljwl h+-eu+g a computer rated at 500 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 compute j2l-pw+he(z q8glu--xp ck+ lrs 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 owathm9 sbsa o )/s8838wjcqy6; pa-iis connected to four resistors to form a simple circuit as shown to the rightos b)38 wch/sa ;9 8sj8pi q6aamtyw-o.
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 fo xptym /6w5pd1ur resistors to form a simple circuit as shown1tdmpy 65xp /w 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 ideal ammeter, a switch and threxdhfy9y1;,1)yh xzp:1ba z ure resistors are connected as shown. With the switch open as showz9,d1hx;yh1p:z1rx uybyf a)n 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 sw/d2julwr6 / gbitch and three resistors are connected as shown. With the switch open as d/b/jrgu2w 6lshown 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 d+ w+v2bf*iok) qdb-eammeter, a switch and three resistors are connected as shown. With the switch open as* kb-eiq2 +f)bod+d vw 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 *2u xtg(7xm voequivalent resistance? Assume that all wires are 7(mx u2oxgt*v 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 of thzpbg (;ftj,-ew)oylx;l* v 4fe circuit shown to the right with resistancegt f ;,lbzyf ();j *xew-4pvlos $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idj7 epa*hc9m0 sentical resistors connected in a combination series and parjp0 a7*m h9sceallel 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 shows five identical resistors connected in a combinaticfbi08- rwl/x on series and parallel circuit to a voi fxb 0-rcw/8lltage 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 ry o1w/dm9lbuv/ ;b r1 are identical. Which bulb 19l;o/bu drrw yvb/ m1will 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 and three r963yoqs0-sbs s oqm*g fr-: ikesistors are connected as shown. With the switch open as shown i6*9y:kig3or- sq qsms0o b-sfn 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 and three resistors aru xjq -bf/5 8goidfw+-e connected as shown. With the switch open as shown in tou/w58 gb dqif+fx--jhe 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* hb3s8zshy;bp 7k cr-, an ideal ammeter, a switch and three resistors are connectedhkcz*s7bb3yp s ;-r8h 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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