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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 exijqbq7yadjjh60bik *r 4x2j ww c//v7-sts in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the rwhqyb *42/6ijrjdxcq /j0vbw7j 7a-kesistor 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 resistorswh )c 1hri(ga9 pmy3b+ 6n/diqn* l;7e8 wgtzk are connected in parallel, the_________each resisdh zmy (nw6g7 8et9nirq 1w*b/pcg a;lkh+i3)tor 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 lw+8ho fc 7/g 1c y+)bdovsslu0ightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remah+ss 08dywb cv7g/+1f u )ocloin 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.5f1y i p:dtcg/ LED is the acronym for which one of the foltf1/p:cyg i d5lowing 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 lengtvx veyq*mtdw5kbbpe 2 8kw64/ u8k+j8h L and cross-sectional area A. It is to be placed into a circuit, bde8 6xewu8+2w k8vyj4k/* m 5 ktbvqpbut 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 8 (mn/+gavujvmaterial. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has (jmvv gu +n/a8resistance

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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 anduy:rt 1 ,h8(vbmo,j 1a(mcaje6w( wxw half the length of wire X. If wire X has a resistance of R then:uavw c ,j,ry(m (ae(tj18 mxwboh61w 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 p n+oz pa5qj7q 2dhpr;/iece of material is then drawn so that it is a cylinder with new length 2L. What happens toqod p han/5;qz+7p r2j 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. Heibj:m5i aexkagxn65ya2:xjde64kxg v3 , z5* decides to modify the filament. How should the filament of 5aax i2jxbxnae:e656*gk3yd,5xmk :v4igzj 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 thwo2:l o4mz v xc.4yqq.e same material. The length and radix w4v.z:cq ooy .24qlmus 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, av6hojeid 7p, 4np 9)rvre connected to a battery in the following way: “Two resistors are connected in series. This combinatio )dnir,o vvhepp769 j4n 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 -l0 ol m/mi4va,ij qv/in the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readingi/ mil4 l-v, mo0vqa/j 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 th f m.ye/b772t+ovtkhee right. The three bulbs 1, 2, and 3 - represented as resistors i/v.tb7o eeh t72k fm+yn 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 right. If the curreno5j7ib1gwo/lnqzse 8v(/ 7d k t in all three resistors i ne b/ l(wkqs8i5 7/dzjog7v1os 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 rep:z z/xhh iccsw d(( )tfhl08r(resents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whixs() hl:8ihz (cc (wf/z 0rhdtch 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,l+ 4wm)noy tr is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equar,l+mo t4ny)wl 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 a+iyk5 k bcdg *(:ein*sndY 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 sgyci*+d i( k*b:5nkeconnected 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 the identified resqnd*-xyykyj+j)17 bnubk(;v istor in 5 seconds once the circuit ny)*k1v ybndy7bx ju+ -q;(kj 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 followyoxws;t4s d06)lt0ig 6v-8bobqre 1 eing simple circuit have the same resistance, whic 64ytiwb; e8 x1olvt06besdo )-rsq0 gh 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, thyzx wx71 xj6ou: );znae current through the 6.0 Ω resistor is 1.0 A. What is the power supjz xzao ;1:x y7xwn)6uply 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 i065( dcgcq 9g azbfs-fn series to a battery. Suppose R1 carriesqsdcaz c9 ( ggb5-f6f0 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,bpfnjnvxs o .:j+qp+r42d*; c R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V acnx2cpbpnfj* .j os:v+4drq ;+ross 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( r+d fc k)rm+ibwe7nc h) s60gleru45 and 120 volts. What is the maximum value of the cw 7h)0rluef r)4gk6sn d5e+rcmc (+ iburrent 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 o9yl5 .u (lfmrdperate at 120 voltsdfl5(.mu9y lr?

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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 flowsp n+jj5)+y e *tkl4aem through a 4 ohm resistor that is dissipating 36 watts jn+pkyea tml4+)*5ejof 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 pres )-i6 1/g60hk ivey/qhhr3 bi(zc euaus clothes is marked "120 volt, 600 watt.” In normal use, the current in it isi hi1z3cv6 qk)hgyibeu /( -ar/0hu 6e

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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 couq/ s (c8lcwqdwl 9;)5 4pfx2y(gfwffald NOT be produced by a circuit containing onl a;2g/q x9()cfpdq(l8w4c5fwyff ws l y 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 n m9vx52tgr ok)hkbmj32+ b d)sod 9/xfollowing equivalent resistances C g kxo2nh/j5 b sr9kvmm d+dbo)x329)tANNOT 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 be connected together in di w 6m+t4hqya9c+nr- ukfferent configurations. If all three resistors at+nmy+qr k6h9 w a4uc-re used 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 total power P fos*lyw8 bmpy1 /kb80is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same b8pykb1 mby 08lwf*o s/attery? 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, havigh (jpekn9ad .h j31(mng resistance R1 and R2, are connected in parallel, the equivalent rak1(.gh p(jmhd 9j 3enesistance 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 dfkq.fltu7ql qc*b4;ui if./97ammr 1esigned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that itari/c47ti.kfl1m f. ; u *qu9qqmf7bl 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 uo2 q)mh t8ukcp,kj i:qg-:a+ohm resistor that is dissipating 36 watts of +: kko-puuh,j8q:i2aqg tm c)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 d3l9 dn gb9mj*fh w7s,1nds l4sraws 13 amperes of current when connected to 120 volts. If the price w*9 s3 f7gnjs hls,b1lndm9d4of 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 keep a 100m. icgjzxrl9l 2u0f9 4v8n.o wW lightbulb lit continuously for 1 year at a rate4.m9l ivr 2nxolc9zg.uw 8fj0 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 lightj9y97(* zs(tl vemr a,uv j ow1u9iw-jbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices be1js(io7-uja lu9 (9,rmejw9y* tzv w vst 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 famiaru/l trw.1sb5y k nd/k8; 0gyly of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected ab01y/ 8nsl d.kr;tuyk5gw/r 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 0sp9,gjkgpmypdtit*k. ;d 6+ a simple circuit as shk 0pkg.gtpj*ym,9 i+d st 6dp;own 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.cc)s 8wf wt5t four resistors to form a simple circuit as shown to the risf)tw ct85 wc.ght.
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 c;d vno)( lowxi4s:x2 qonnected as shown. With the switch open as sh(v:qow d)s lnx;oix24own 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 switch and t)ngw:amoba o0) w.:(xpx5h p whree resistors are connected as shown. With the switch open as shown in the diagram the ammeter o5( gw )wwmxxb:ahp.) an:0opreads 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 amm:t6 tz o)-lstdeter, a switch and three resistors are connected as shown. With the switch o:old-)tst6 tz pen 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 circuitq8 /rpeee8h3obtqsso.s 5e -8 shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance R.8e e3es.qrp5 / tsqbooe-8s 8h


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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 resisi30-vwe k) gbktance of the circuit shown to the right with resistancevi0geb k3k) -ws $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 i*x5,ysn avl 7ij0s.qft 5ck, qn a combination series and parallisj .0 5 7xakct5,nvsyqf *,lqel 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 beln3cvv ( 4kg5cnow shows five identical resistors connected in a combinationkv( vnng 34c5c 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 diaq sv8t2os7xm/q 5ei0nq ij); egram, all of the bulbs are identical. Which bulb will be /ivs7 qi m)8;sjqxeqn20o5 etthe 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 thr8hf efdp/ ./ 0cj.)odh lufpi,ee resistors are connected as showi/u0d h.pl fch)od8f j,e.p /fn. 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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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, i9lwrx7rl ex;92rjo* (7prjpa7 7rvf a switch and three resistors are connected as shown. With thex;w 7o2ar99 rr7 f( jxreprlpvl7ij7* 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 t i2c;ru btk1/0as5t*5 rpr piyhree resistors are connected as shown. With the switch open a5 rr50stt2 y*p;c1 /pi rkbuais 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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