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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 circuitwg4fdo/q-b bend9 / t* shown, an electric current exists in the metal resistor connected to the battery. Which one of the followinq4fw te d/- b/b*9godng 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 para;1goie3wr9w0/2 s fybqqm;yc llel, the_________each resisy12iorw/ e y bqwcq;9s0g; fm3tor 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 lightbulwuwcwet.7nr,)4+f+z 7 dv mnub causes the filament to become n)cv 4fnuu,twr dw.+ m7 w+z7ewhite hot, 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 tdio* j0+ c-esq b.el8i fy v7u8c3h+jahe acronym for which one of the foqliieoavje3ch8 b +7+c8*usd.-0j fy llowing 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-sectionsmd6 df ixg4ty -g e;jd+.h.n+al area A. It is to be placed into a circuit, but it first mu6;g tdf4+i. d. nysgjdxemh -+st 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 u6gh:som5s8n+lt9fs the same material. Wire II has twice the diameter and twice the length of I. If I has resistt 5nuo+ms6fg lh: 9ss8ance 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 has twice the diamcz+xaum5mw7q xj24t(eter and half the lengthu2z4j c+( mxwmx7 at5q 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 radius r. This ; h asi46y5.fh6yic*qlqni n3piece of material is then drawn so that it is a cylinder with new lengc3 hflqhi.nysqi n5*y4ia6 6 ;th 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 brightcjnzp.l* 5r )dif*)jkikd 1ru9t n +)ter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order li*j+njrk )kid.n)cf5)ru t *pt9zd 1 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 material. Thegy mgc6g8 i2x( length and radius of each resistymg6c(i2gx 8gor 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 conn kp(k0u69o(ybl,7xukw r e2+ vuvyh,tected to a battery in the following way: “Two resistors are connec+9v 7u,ry ,ybpv (0k h6t(lkw u2oxkeuted 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 circuit diagram has internal reloa)xy5uwj;mu- 6n)x sistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. n5 y6x;aw-luu ojm x))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 three bulbs 1,m+m.kve 9hx5/l 5n)nfg9r 3mr igbiq5 2, and 3 - represented as resisto9 g)5r k9b5nh5i.q lx3n m/fmrvi+mge rs 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 electrix h(5ew:hfz :zcal circuit at the right. If the current in all three resistors is equal,f:xz5z h:hew( 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 rephmf r; wugf4zwz dtcc*385j nl cd;8,3qv9q(qresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bul48 c;ff 5wd*j, qccdznv83rlm93hz gwqqu t;(b (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 7t p ti7jyy q:0i p1r;y tdr2+kisy+8jcircuit shown where resistors R1, 2i+qii0t:y ;7 8kp +r71ty ypyjjrtdsR2 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 bnf1(hewn1oty 1 sk 8/x-gma(series to a battery. Bulb X is brighter tha1om(1sf /wnbn1 8 yet a(xg-hkn 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 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 resisr(c/nnb5 kt0 t5. tmkhtor in 5 seconds once the circuit wa .t hkt(b0n5rkmn5t /cs 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 themd 2*5vabs9umhznv4y 3ja ,;q following simple circuit have the same resistance, which would dissipate the greatest powerh s23qju *m5mdbvn9 ,a;yv4za?


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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 Ω rescmu)e b9 cycbr83l5hgb: 13zv istor is 1.0 A. What is the power ubr35:bc8gmzyh3 ccb9)l1ev 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 battery ) lu*yguh9qypa4 1a,:qv8 mnv. 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 u 1lh:ma9yyvn84*vp g a)q,uq 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 cop gik1za+; jw(nnected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissij1wpk a;i(+ zgpates 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 the maximubxg5;aw+ gt;zm value o;x;gwbz+gt a5f 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 watt lightbulb designed to operate at sr;)/t wbx 35tkv+x 82d h2 xbulury8h120 kh8tuxb82rsv;lr3 2wubt d5 hx/+ xy)volts?

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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 resistornmc: jmsx2f3 2 that is dissipating 36 watx 22mj3msfcn: ts of 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 is marked "120 vvz(9yql 1 .0kxmm+d cgolt, 600 watt.” In normal usy1dmv.+m kzlq09(x cge, 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 produced by a circuit conu)-i g)fuzhfs ) dzq2.tainizd)u fgz2.q-)i)sfuh ng 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 ltmb 5u.alb6)the following equivalent resmb6bu lal 5)t.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 differeq (yx 0d 5of.qfa1 pvlc3kil+4nt values can be connected together in different configurations. If all three resistors ar 5dcqk4q3 +fp0oialyfv(1x .le 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, ya4a e0;q9 zt3)dgzpua total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n ideadp ze)0a3yt49 ; qzugntical 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, having resistance61 5v x,k 2wjzj4lezo8tc.rbi R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the followi4rje tkc,zolzj2x 6. 1 wv58bing 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 resistan*urcd(pw7 4;vcg x6 eace of 12Ω when operating at 120 volts. What is the minimum amount of time thx* a;rcc pwue476(vg dat 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 w6sd u08j5;op rwuv0kkatts of powejswd u8vok p006r;k u5r?

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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 whenwmm v 1e9h-b.s connected to 120 volts. If the price of electricitmv9w 1he.sm-by 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 100W lightvy:(,i iphoof4rgm t.3m 7ut/ bulb lit continuousli:p7 fvoi/m4 .trtumo( hg,y3y for 1 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 through a lightbulb results in a power of 24 w:o6yh0cgo l/x hx2wly f0 lxsvt251).0 W associated with the bulb. Which one of the following choices best representloy1 gxv xxfo 6yc2/0hl:0)hlww5st2s 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 b+ x9z;dibn-g) kvvi 0 40:yry9pkqesof six owns 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 computers can be operating at the sametinyy9:qk ;9vebp-r+ kxi0 )z0gdbs v4ime?

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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 resistor.(9 *w yso6 csuxu( .;je 6s1ktaqjdyps to form a simple circuit es1dau cspky6 ojq 6wt9u(j(; . x*y.sas 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 connected to four resistors to form a simple circuit oo;j+,op5a m 0zts4h0 w2awm0 k:xpv hu/pbw0 a4zhtam 0uvbwhpo0w0, 0j/o ps wm5a2opxk;+:s 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 ammete3/lq*e5- bl fiyu8u u ppro2j2r, a switch and three resistors are connected as shown. With the switor 2ube-2piuulf j 8lp/5qy*3 ch 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 amm2lgm r3 xl(,3ydduarhf 68xu3eter, a switch and three resistors are connected as shown. With the switch open as shown ihu3, y3l6a2rd( x mxf3 8grdlun 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 amm(jbx g0 t47m:jv(7ucjz/*f whnyj .fyeter, a switch and three resistors are connected a/cf0utj 7*h7y(v x (nz.jyjwfbjg4:ms 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 rk36sv 7t k x h*vi9,wd:bpvb7right, what is the equivalent resistance? Assume that all wires are id3vv 6hdb*7:x7wsp ,bvi9trkk eal, 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 the right with redpjob *a0a8scnnxkh 9,zt 3-zwk1 r4+sin+3h zc* sar k 0 oztj1k8bnw,px-9a4dstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in a c(79r:w eqhu( l vy,u0dczl7ryombination series and parallel circui ,u7y7 rvyd0r:qw(cz l ehul9(t 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 r dfa;-spzv*+,l qn8 vwesistors connected in a combination series and para,;dwz nvqvfp8-+* slallel 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 bulb aq4zte,y-i) ds9w0tbs are identical. Which bulb will be tyt94 ,asq b iedwtz0)-he 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 d* s8 j7t n/vb4p;(3,i q bh zhbwyjyyih6g8r9ammeter, a switch and three resistors are connected as shown. With the 4wpr/h3y bhv8 sy8gid7; t hj 6b,bi*n9qjz(yswitch 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 amu-ch;gob53ej /ps1 wbmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 b5 po/h3j -e1bu;wcgs 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 th8l)qmbs4ih3b; qj sc3 ree resistors are connected as shown. With the switch o8lqb)c 3qimj s43; hbspen 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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