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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 s0/z ts f8:sp,1n mkkvthe metal resistor connected to the battery. Which one of the follstp1mv,/ 0nkzk8s :fs owing choices best describes 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 parallel,ul*) ny43 4nr g8+gu qxiko6ud the_________each resistor is 48g *6gndu)q4l3u +ikunorxythe 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 filam, r; cmlgfp/b;ho-rd) ent wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becau,o lc/-p) hbrrd;f;g mse

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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 thozw kh y5va 4x+h9l;4be acronym yz 4ohvkha ;4w 9b+5lxfor 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-* jzb(b9 s(bdqsectional area A. It is to be placed intqj((dzb* b9 sbo 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 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 wir)xzt /i,dn 7pre II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistancdprni)/,tx 7ze 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 materiv p3xa7(dmv3nfg.ka3r f2q-k al but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistana vr g. 2fnfqak(kpvm73-33dxce 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:o,h dw6;ojer/ 9huw+m wl)nbecux .9 piece of material is then drawn so that it is a cylinder with new length 2L. What happenohw,b/:9 6hum jwlec)r.x nuwo +; 9des 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. rt ,u)dwcys k b361v-eHe decides to modify the filament. How shouldb rw d61-sv,3ykute) c 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;uziv fd92ah 2,i htt* of the same material. The length and radius of each resisto,ut;h9t 2f avdhi 2zi*r 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 battery inu1kq*fq v)pzv-0yio 2 w(jqe, the following way: “Two o vp*,f)y1k-q wqj2 u0(ziqevresistors 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 if1f:gcx i wv/,n the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has intern/ vf :ix1w,gfcal 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 cir:ht0/d(0zfkctk sm k/cuit shown to the right. The three bulbs 1, 2, and 3 - represented as rtf/0t0z :kmdc/k( k shesistors 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 cg/1h bnxlu /w:ircuit at the right. If the current in all three rehxgln/ : 1/ubwsistors 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 simple electric circui*71y1y ywnmg dq7fx8h t composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbd8qmg w7y1h17f y*ynx s)
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 follows7n(.c2ixn g ixka:i *5frl;bing statements is NOT true concerning the simple circuit shown where resistors l in as5n.7i*g(: cxf2 ibk;rxR1, 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 arh-/./u, vpj6wt .wh7ztota cg /p1tade 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 wtw/.6tpta v/wghc/-o tp7.h1 ,az judith 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 in yoy z/ 04pmyp0 5 seconds once the circuit was clos4z/yyo p ypm00ed?


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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 simpla4fagi bny84f+rj0. i5x- t4 zb agq5te circuit have the same resistance, which would dissip8i.0a5bq ty4xaga5zfj4i gbn trf-4 +ate 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 dvuev 3l+p :gjl;a/ y*/ 5yimyziagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power suy;yi y*pe53guzv/+la /:mj vl pply 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 connectewcq+ hh31oek 7d in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3eqw 317oh hc+k 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 andR3 are connected in paralle; (t(awh.eb2cheqtv 8 l to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the cuq a ((vc. ebhwt2th8e;rrent 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. oz +u4xqvhp8cq5 ,0fg What is the maximum pvuf 485cqq zh+o0,g xvalue 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 li( mmctz -*tv*r dr5.watt lightbulb designed to operate at 120 voltsvtct* dmmi- zlr .(5r*?

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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 flo:f-o4;ao ttx (yu v7a-9rjv sjws through a 4 ohm resistor that is dissipating 36 watts of powr s jt(4 x9u:7 -aof;avj-vyoter?

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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 waty tnx,6dsm*5ibrb n+ 7t.” In normal use, the curre6ys mrbb*7 txid,5 n+nnt 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 folnvvg92 71id dalowing resistances could NOT be produced by a circuit containing only three id iv91vgda d27nentical 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 follf9 j-j vrmco9+z:qka ,owing equivalent resi-9:zra+vj9mfcj qk, ostances 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 differen8ztup * :en4fnt values can be connected together in different configurations. If all three resistors are used in a circuzt:n fp8u4e n*it, 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 7a) , hvxt)jwoeyh0wze( 0sl*power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same battery? Assume the w jt w7asezy )ho*0x0e vl)(,hinternal 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, haviw dw7n*c4x 4hzng resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following 7wnhxzd44w*c 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 that0u cwhwty439pdd(o7du 0g ye1 it has a resistance of 12Ω when operating at 120 volts. What isp0e4du1d( y3dt cwou7wghy 90 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 flow ;a*i13pme:m sbs2 icvs through a 4 ohm resistor that is dissipating 36 watts 3 ;*pbm2sii:1casv emof 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 oa z*i1o84npana c mo20 s, pg-b7c(ghpf current when connected to 120 volts. If the a*1,ocspb og0 i24z mngp- p7aa(ch8nprice 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 muchtg1n9 *ssiqg (x)zi* hw5(ml l would it cost to keep a 100W lightbulb lit continuously for 1m i h9n s*l t(wiq)x(g1gs5*lz 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 throf*zcw(+7 ;gz rn qih0kugh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best representki(zfrc g0q*7nzhw+; s 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 a 12 r4ekuw2nl)z 50 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 can benz2)lwu e5rk4 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 i+v 1o wpvo5tw.s connected to four resistors to form a simple circuit 1wv w o+pto5.vas 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 battery3129ub0lgdbbn g omm* x7mi5r is connected to four resistors to form a simple circuit an1mbb 25lmx9 o70gigb u *d3rms shown 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 switch4mmki5 tjc-b( and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads mkb(-i4ct5 jm 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 switch and three w7y31t)oct qhe+z 4dytfm-: wresistors are connected as shown. Wit ct1fh:oe 4y +t7ywm3tzqw-)dh 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 in m(3 k-6cpf3n6dewocasq2rnpy b1 46deal ammeter, a switch and three resistors are connected as shown. With the switch open as dn23 cp6a3q(cs-p bnk6y1n6formwe4 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+g/r kqg ng*1m u. e8r2eh;hvb to the right, what is the equivalent resistance? Assume that all wires .;uqk e+gnv8m*gbe r g21h/ hrare 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 the circuit shown to fez0 ne;muu;*the right with resistances;*uzfn;eue 0m $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 sh b(i7e0zil lb1)x++3bhqi.i v- mhhumows five identical resistors connected in a combination series and parallel circ-l3+.h+vi1(bu0i qzimxh bm l7e bi )huit 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 sho ngxnm.)o3j om)5erf hi* jh+9ws five identical resistors connected in a combination g nn)95x fm3).moj+irhe *hjo series 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 are identicaauo5o m4v/pah3 rlq/uc/b,) y l. Which bulbpalurucbv yq/ o )//ah m,o534 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 switc,.ff a8.xoeo;nru1ze h and three resistors are connected as shown. With the switch open e8 z1uxf ;.nef,oa .oras 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 and t(8dxtecl;zb4llq 70 shree resistors are connected as shown. With the switch open as shown in the diagram the am q7bex dlc4lt0s8 z;(lmeter 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: mj6bs54thm:4gknr-0 zjy eh)fttw4 s are connected as shown. With the switch open as show rw-4h4: mk0metjh jts:)gbz5yt 4nf6n 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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