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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 pyz8f3g6mm tsf58a 8gp1b l7gexists in the metal resistor connected to the battery. Which one of sbpf 8g 3mfpz8t8mgg y76al15the following 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 z. w,x-fao 7jgparallel, the_________each resistor is thw,-j za7of .xge 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 abhy ,i: y.w/;zu, l +awpx1xfn lightbulb causes the filament to become white hot, while the larger wire/ w+h fula1;:xiyy.b, pzxn,w s 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 h ruy l-)htl;c3ousehold lights are being replaced with LEDs. LED is the acronym fo ;)3 cu-yrlhtlr 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 l+i(o /rrg xt;cdc:w)m+ dud.eength L and cross-sectional area A. It is to be placedt ed od c;x/c+. :ruwigdr)m+( 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 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 material. Wire II has t 1k*byn.n*4agfru pg;wice the diameter and twice the length of I. If I has resistance R, II has r*prgk4 g1. *unnfb;ya esistance

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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 andfvbwjt49ye04 half the length of wire X. If wire X hv btj0 44ywf9eas 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 resis1om c (wrk(8sator has length L and radius r. This piece of material is then drawn so that it is a cylw8r(a sok1mc (inder with new length 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 kh7px78 b+s(lqv1ie lg-pln. to make a brighter light bulb. He decides to mh sn7b7q.ex l1 l8-plp( kv+giodify the filament. How should 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 resim:s jv wm7*/ ;grw3zukstors are made of the same material. The length and radius of each resistw73w; mvs jrugk/m *z:or 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 ba ihba;6xw)8m j/tsz)gweh 5l-ttery in the foll)hemh-tx ij/ ;s)a5wb8lwz6g owing way: “Two resistors 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 in the accompanying circuit diagrix4j5 3j45jh .jlk xdsam has internal resistance 1.5lxj d j5shk3xj4 i4j0.0 kW and the ammeter 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 to the right. The three b-y i3v 8 ty;je+yxo )m*zhnhz*ulbs 1, 2, and 3 - representeymz;-zh *eo*8+tv3yy ) jxih nd as resistors 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 circuit at the right. If the currengc/ tc939ff+-tw hon at in all three resitcof+ac-th nwg f99/ 3stors 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 rajbrz a;2 yv25m5zu 8pight represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. W;az y jmzr2v55uap28 bhich 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 gqihv s *pz z /13pah+tiq2j+vf89qc1statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal rei11+8j2 v z+hqzqpgsfpi *a tv9/hcq 3sistances?


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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 srr6. 1wzpx8f+ u yj1bandY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elemensy.1 xrw 8pr zf6+b1ujts 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 wiaxd3 (fisf g v*3ecf(*ll pass through the identified resistor in 5 seconds once the circuit was closedafgcixff* v*e3d (3( s?


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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 resis0xlhg+z a 63d8kh(c eqtors in the following simple circuit have the same resistance, which would dissipate the greatest powerql+ x8e gz(0hak3cd6 h?


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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 Ωw8+ n8kxpx ;;f(tj 7rkh 5q3avmy z8dc resistor is 1.0 A. What is the power supply voltage V?x r;7+q vxwa 8hpm;3 kt dnkzyj85fc(8


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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 bdk f k9n-;x,hgek un35attery. 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 ach3e-;nfgknu9xk,d 5 kross 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 gwuyxx:gdx 8(u46 k;e 4 rp0ww2r:)sb7gkm r vandR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R4:;dwr gkw kg xu ( x7srur)bg mw:804eypvx623 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 1dy*qfc+c8 b(v0i tru:h8 e4ld200 watts and 120 volts. What is the maximum value of the +08:qiy h crlub84vt(dde *c fcurrent 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 desig u4gt g1lt0siq: ca2*+rvn 2s6n z,we;*gwjqq ned to operate at 120 vo+g ; gv0qiz: 2,n4 *wr2qe 1jsuq *csntgwa6tllts?

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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 q3zrk thm7wlx3riw ykh9 *:h/f,ajt f/d w94( resistor that is dissipating 36 watts of power?/,d 3j*mhk q9zwr4kfwf:rh9 aix3yttl(7/wh

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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 "1 9b6wor76j4pe0gkfrt je8up2 20 volt, 600 watt.” In normal use, the curre8otrp w2f jr0j 9p u6746gkebent 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 prthiq- td1tkv8 7o;*q4ymf r1y oduced by a circuit containing only three ioyr1qq1t7; *iv -mktd yft48hdentical 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 resistl2csmnzb 0vx4vu 2-* tors. Which of the following equivalent resistances CANNOT be produced *u4cms20nv- vt 2bz lxusing 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 *5hefhbcc8 s -of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be proc8chs5 fb-* heduced?

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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 pohooxhlpvu 0+ 3rky: 75wer 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 iklo: 5 h3vr op7y0x+uhnternal 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 resistance R1 and k9cjv0p tu 1x6 (brnk+zwt y--R2, are connected in parallel, thek+9v0xnw 1yb(p zcjt6-k tu- r equivalent 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 resistance6hd **av7pt2t +ylnxp,pk uu8 of 12Ω when operating at 120 volts. What is the minimux *,l ppy ud7t8 kan6u2ht+*pvm 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 throueksi+cax1 ac,nxpt 0 0y9. 4umgh a 4 ohm resistor that is dissipating 36 wat, cc4 ty0km.ie0+1puxxa9as n ts 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 draws 13 amperes of current when connected tom)c /ggto1lsid* z:h : 120 volts. If the p: :s gh)t dzi*/1lcmogrice 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 much would iq1l1q2 xdpc/rd)9c6 dv6k(hq vrd:ep t cost to keep a 100W lightbulb lit continuously for 1 year at av1/ q96ecdr: (kpxphqr6)qdldvcd 2 1 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 lighthhvyhgo7r 5eh 92im0d 5ra*1x bulb results in a power of 24.0 W associated with the bulb. Which one rad51 m h y*9h2rgxhih vo50e7of 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 owns a computer ratku9g :fj),kr8 s enfv8 lzr;v:ed at 500 watts in a 120 V circuit. If all computers are plugged ijv,: )8vgruz n :9klrkfsf;e8 nto a single circuit protected 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 resi/ege q3rm4lh/0k 3ug) qsdl f(stors to form a simple circuit as shown to the right.ml)lqe egqg3ud3/ k0 f r(/s4h
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 y7g /p+cz;z1fwcbg 4tpl ic 6(circuit as /p;c 6lf417 wg+zyi pzbt(gcc 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 switch and three resistor()/pki far0mw s are connected as shown. With the switch open as shown in the diagram the ammeter readwfa)(m/k i r0ps 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 41s/c nm 2fwwbt70tng ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rea40snmcftww t/ 21 7bgnds 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 s59 i:c3z ku.wwjh1cdconnected as shown. With the switch open as shown in the diagram the ammeter readsu:h 9kw jwdsz1cc3i.5 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 thf1 13y fwxqgzy (pvr:5 q)v.jve equivalent resistance? Assume that all wires are ideal, the battery hasvpfy)v yf w1:5zg13v.q(qx rj 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 tykr) na 7* ys-c7(vwvlo the right with resistc7nl-vr()7 y ksvyaw*ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ii2sy ,-hulkg(i n15yfn a combination series and parallel circ gf2ku(y1h5,sy-ni l iuit 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 connectek6l: r vf9lwd2d in a combination series and2vlk 6dlw r9:f 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 identical. kz0)p-vy zgo/ Which bulb will be the brightest?y /zpvg-kz)0o


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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 ar;c xj bnm;uq1*:d *hkte connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a xk;:*; dt*ucqhnm1bjmperes.
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 a ro ;e*m p7m,bk0x 73dwncs5rznd three resistors are connec0wbm75zn3 xsk7prm* der , o;cted as shown. With 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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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, pz0k)3hrox m7 a switch and three resistors are connected as shown. With the switch open as shown in the diagmrk zh )p07o3xram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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