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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 th: 1 ol*esp,oqoe metal resistor connected to the battery. Which one of the foll*:lpos,o o1eq 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, the___1r yfe1 9*w+lv.z9abmdrp k7y______each resistor is the rvzmwby ar f1p +l.d 9k97y*e1same.

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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 caueai(:y8k86sue hd;rises the filament to become white hot,d68h ; 8s:ieyer(i uka 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 replaced3 snpw,dwl8icsv 1s7: with LEDs. LED is the acronym for which one of th,s1 :i clpd w8snvw3s7e 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 lenaj igl;fxt.t 1z4( lah ko7*1kgth L and cross-sectional area A. It is to be placed into 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 re1gk4.ztifaj 71o(l h *;xatklsistivity 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 6gu)v4)r6gq7w8ukip mr-b )cczp x rmr7i9c;of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance8 6)migbxcw ;gpcpr)irckz-7r47 u )m uqr6v9 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 m gz+hen) b)9fbut has twice the diameter and half the length of wire X. If e nh )mfgz+b9)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 piece of0 qciu,p0 shu u3ay*+1vt1fhy material is then drawn so that it is a cylinder with new length 2L. What happens to the rhhqy1av u+i3yut,u 0 s0*pfc1esistance 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 e 2wvgr,tc ,4sa brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce mor4t,v,erscg w2 e 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. The lengthuq w vy vv 1.-h0 t -0epa)fr8mdd+)xu7aza.zf and radius of dv1-d- pxh 7e+yav zf)u) tur vama.0wz8 f0q.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 battery in th)xta1+ czr b9xh3 1nnne following way: “Two resistors are connected in series. This combination of two resistors is connected in paralntbnhx11 )nr3a zc9x+ lel 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 f3 ,h tv..mplvg(h4p waccompanying circuit diagram has internal resistance 10.0 kW and the ammetermvh(pht wg .fv3,4l.p has internal 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 circuit shown tvws5k iako c i17nj -iek).*r1o the right. The three bulbs 1, 2, and 3 - represented as resistors in the dce.)* oi 5 wrk1kj7i1isvk-naiagram
- 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 cirj4)3cj 8.otpnjhrzuf r-rt78 cuit at the right. If the current in all three resi)tc r3prjh8 7 unf -.8tjjzr4ostors 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 6h 5ihi-tk q;rxd kc,6simple electric circuit composed of 5 identical lt6c6hk-x; dikh 5i rq,ight bulbs and 2 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 concernirrww a9ndl7+qma;5,c qlai8*ng the simple circuit shown wh+8,7q a5 al;q*rl mncadiw9wrere resistors R1, 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 are connected in series to a battery. jt,cj1wy5d;m Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected imy;, jwt5jc1 dn 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 identhw 6qx f wuoy-e3r -.rri*1kp.ified resistor in 5 seconds once the circuit wu o-p1-6rxwh3* ef yrkiwq. r.as 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 resi.klg8ybk l4 w;stors in the following simple circuit have the same resil8w bgy.4lk k;stance, 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 accompal7vx/mpka,b(n; dr.*u ptn a* nying circuit diagram, the current through the 6.0 Ω resistor ,.mk p(n*p a nbxr/7;vd*tluais 1.0 A. What is 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 connec q/+/ldshx;-3si fdqq ted in series to a battery. 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 acs;ihqld q+ dsq3f- //xross 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 parallel ygo wp490bbz ah7+s b/(9wj pum+nd*jto a battery. Suppose R1 has 2V acro9n 0j *w buab9zb( d/sjw4hp7+p gy+omss 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 120 volts. What is the maximu:fyx;)dn9f h c u)ze)gm value of theeu :)fzc)xn;h)yfgd9 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 operat/ ay72 ac6wcigo2yez)e at 120 volts?a2/2c wo6 iazy7yg)ce

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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 i eg /00zd:rpbkdh3h2i y5q p3dissipating 36 watts o3iz/qd5e prphk3 y : g0i20bhdf 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 volt, 600*dx 9* idsudh: watt.” In normal use, theh :u*idsd9*dx 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 cirunw2m (0d80 5elaei oicuit containmw 5oi (l0dai8en0eu 2ing 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. Wh56p,xq6.eb and f0x-et wp p:zich of the following equivalent resistances CANNOT be prodf.xx-wq pb5:6 epzd,tpn6ae0 uced 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 connectedtjpau1/sg i::on3 lz/ together in different configurations. If all three resistors are used in a circuit, how many different values i1o nls ::/p ugt3aj/zof 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 resi ilbjcn v9pnbo* .u+**stor is connected to a battery, a total 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 internal resistajn9+v i*.pol *nbc*ubnce 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 resistance R1 and R2, are connected in p;b 0)ifouz5u2gj a n0fpin7 c.arallel, the e f.f; p iaunznc27 uo0gji5b)0quivalent 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 s;7mdt.z/ hzw/yjok6 c i:hqhz u, 4*ja resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm stzuj/i4hqo /z kh7 d,yc 6; *m.j:whz0.45 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 floasydyn+ 8gjgtpz6) a h4ri*.0ws through a 4 ohm resistor that is dissipating 36 wattsagz)8p4 h.0*rtg y y+jdsa6ni of 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 dmz p90ud5 jh9*32yx el pc)spqraws 13 amperes of current when connected to 120 volts. If the price o 9 3)xlcq 9s0ujzp*h5 mey2ppdf 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 woul.1paxv,av u- wd it cost to keep a 100W lightbulb lit continuously for 1 year at a rate of .wa vu,vpa-1x$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 q0fld wkje.2*power of 24.0 W associated with the bulb. Which one of the following choices be0kjdq * .wfle2st 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 ra1z26 orvk*9 tzernkk-ted at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protectedr*v ze69-ok 2rknz 1tk 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 connecteb q 69gdyik-zak5 tn72d to four resistors to form a simple circuit as shown to the righk- yadnikzq g6tb957 2t.
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 7r7 )xhk,3rtrzqlu xbb 5 ,g4eto four resistors to form a simple circuit ah74 t5lgeru7x)bx3,,brrqkz 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 idoun;(bmy 13u x) 2oy6rltn6sbeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the di6yunm6;lnxr(o 2sb uyo3bt) 1agram 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 x6,jedx+j t o,z8)lzufzp )q3empb(,ab6y :y three resistors are connected as shown. With the switch open as shown)y +byj8qtzoupf zj : meep,b(6,zx3)da l6,x 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 ammeter, a switch and three resistors are conn-nec vm n)pp zjr/4ax5wh,(1lected ce, p(vnz1)/x4-p 5ljaw hr nmas 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 a*ixu84kul - jis the equivalent resistance? Assume that all wires areu*uka48x jli- 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 r(3wv9bblqxxhqs30 + to the right with resistances v3r(9b+q b s 0xh3wlqx$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belm/j+*bzeohd+ ow shows five identical resistors connected in a combination series and parallel c ++em/hb *jzdoircuit 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 conn02v+2flvbnh qn* cfv8 ua w:5zected in a combination series and parallel circuit tofca2 fn:hl +*wv85nvuv2 0qbz 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 diagmg mb(-fb,21w fz5qys m6lpz2ram, all of the bulbs are identical. Which bulb will be t p5sf(-bmm2y,1blw gzfm6 2qzhe 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 resistors areul 9p1 5*f iy jpsptvto:1,:yy connected as shoou9ftp 15ptvy1:* :is,yl pyjwn. 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,n0myj ; 3ejx5y an ideal ammeter, a switch and three resistors are connected as shown. With the switch op;j0ex5 jny3myen 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 amhvg38w6fp l.8hw vc +gmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammlh63wgvwf8g ch+v.8 p eter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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