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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 electrqh az nbz.0t6)ic current exists in the metal resistor connecte6qzh0an. zt) bd to the battery. Which one of the 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 p7/g+dia6v zqbfv2zyu 0pf ; d:arallel, the_________each resist+gz/7qpd6 fv 0:;i z2ubyadfvor 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 lightbulb causes the fise/-o jtyz(zib; 1)8lahsg l8lament to ss /b) -8ltzh18io(yg ;laejzbecome white 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 replacey9q j 40 gj2cn3hcu9ucd with LEDs. LED is the acronym for whichc4 c3njqyu02cu 9 g9jh 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 gafj/ox 3aa0*x 3xp9w traphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that owfa0*jx9 aa3px/x3t 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 twice the ,jd8ah zxpl wc.8- w 2r:gi,z fol++hvhdo1z8diameter and twice the length of I. If I has resist woz.,88 do -: wz r128+ilh+dxfj z,glhpavhcance 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 m/d uuq7+g8js aaterial 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 r7qgujs 8u d+a/esistance 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 leta fg92 orp2l8ngth L and radius r. This piece of material is then drawn so that it is a 2 tr8plg29ofa cylinder 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 to make a brighter light bulb. diqftpa58r2-a n :lh70 rmxc/He decides to modify the filament. How should the filament of a lightbulb be modifi:n27x0ti/-afh r am8p5 qcdr led 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 anmu.vjl*e*(k u(g p/ rre made of the same material. The length and radius of each resist*pkrl* .jg(uun(mv/eor 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 of4c)/gv *sq6ts wa d6py resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combinatisqac* 6/6pgwtv4)d s yon 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 th-(fpjj,d zd cc4.slt k;;b7dl e accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mAl-lf7; c.z 4dpk,sb djct(j d;. 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.9-ajlhl q.8wn The three bulbs 1, 2, and 3 - repr- n.9h ql8awljesented 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 ec,dc7t 1l s7hcqb3to-lectrical circuit at the right. If the current in all three resistors cc-t lq3obds t1,hc7 7is 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 circuit composed o p7p1 2hs +neo0ekbcu1f 5 identical light bulbs and 2 flashlight cells. Which bulb (or heo7p 2c+n p 1bs0eku1bulbs)
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 t 61.lf;su1zbv 3grvwjw kv 7hz38k gs-rue concerning the simple circuit shown where resis1 sg1- b67 3v;ujgzs.3h krww fzlvv8ktors 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 serie -k-xbsc 9r,irs to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel witr ,cks9i bx-r-h 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 b; mir+ne;ea()rd k/c in 5 seconds once the circuit was cr anc/;dbemiek)+ ;r(losed?


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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 simple .a9oxaw ww)oczbm68wtlhh; (i /-x; fcircuit have the same resistance, which would dissipate6 flw98hw ;axw h/;o(mab -.i)oxztwc 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, thez2pac0u) . ,6pj* dncr0 m b-si8xvnew current through the 6.0 Ω resistor iscnun 68wje-rcmaz0) 0,x* sppdvb.2 i 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 connected inr7 sq)1jfs m8l 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 across R3 1rlq8) ssj7mf?

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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 andRp :(w.d1fwd(fiq nz*e3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is f1 (zwp:*fnei.d wq( dthe 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. gz,jz9rmycry t,4+ y gj*/z 1n What is the maximum value of the current under these conditigz y,*zm/4j9 yr ,c1+njtyrzgons?

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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 wati)t 0bmzzr.nr6 9md6d gwt 3,zt lightbulb designed to operate at 120 voltsbzrg ndzd3i6w. r)t9t,mz6 m0?

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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 dio c7/y ht0+3opmz-h zd b(j)xmssipating 36 watts oc b-+/0)m (h 3zhx7dmojzytopf 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 ,: ppq5or,ek his marked "120 volt, 600 watt.” In normal use, the curreoe:krq p,h5,p nt 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 v(1-u 3 jb9gmycdh;*pmmc+zb resistances could NOT be produced by a circuit containing only three iden; m b1mb(+cpg-djzm9*vu3 hc ytical 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./ vg8m8uh/v-u cre0 yr0 Ω resistors. Which of the following equivalent resistances CANNOT be p/v/ur c8 0uey-r8vhmgroduced 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 vast.qmt9 //d xwlues can be connected together in different configurations. If all three resistors are used in a circuit, how many different values9tqswt x/dm. / 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 k3: 7 kl/p aoeuz)0awepower 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 0zkk 7pl):a3o eawu/e 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 resistance R1 and R2, are connx:lco;z.p*lyg:+ w de;vpyo ( ected in parallel, the equivaozc.wx *pyp:o:l(d;g ylv;e +lent 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 resistance of 12Ω when opera ydlowc 09 *dmi52o): *vkwqesting at 120 volts.e c y*)s0qow9lddv *5miok2 :w What is 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 flows through a 4 ohm (qd0 b;wyi;awresistor that is dissipating 36 watts of pbwq;(a w0di;yower?

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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 cov fem65r02ydq b/ 7xwf3vv(sfl+3cpd nnected to 120 volts. If the price of electricity iv 2e+d7y/5 m3r0q( 3lbpdwv6fcf vsfxs $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 lightbulb lit cont fpwqg0k ,pp ce5 ce02c1m rxp3:9a+bvinuously for 1 year a pfm +,wppv2expc:9rcgkbce530 0 q1at 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 pow(wl 1 mzi:mwxndg-h 18er of 24.0 W associated with the bulb. Whi(iz-wmml1gw8n dhx :1ch one of 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 ratesnocy6n- djpb +).w(k d 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 dy(j b n+-nwps koc6.)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 resir-n oe xzw r;36i2iod)stors to form a simple circuit as shown too3-ni ro2)iw xe;6rzd 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 sx-9.y2f8dxjp v ;arypimple circuit as sxyd.-vjyx8r;fp p9 a 2hown 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 resistors are condv;):eo 0iq oynected as shown. With the switch open as shown in the diagram the ammeter reads 2d:eyv; ) oi0oq.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 ide4 o6-jygh87vswk.tew( v /inrws 5+a kal ammeter, a switch and three resistors are connected as shown. With the wvn4.hsk j5yke+wgv/8to wasi-6 (7 rswitch 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 ideal ammeter, a switch and three resistors are con6q7zuc 2)e9 rr-lxhbcnected as shown. With the switch ope-xrchq2)lzcu7e 9br6 n 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 is the equivalent resista.nezilzrn-b w2xv)/ y . d4-clnce? Assume tharz zbnl-y4.x-2/ )iwvc ld.n et all wires are 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 cira,gma 7m 51x0o+/cikuf0kft lcuit shown to the right with res 0a7 k1tcai 5f/uml k0o+f,xmgistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 nnozscz 9(8 e c)mdi92a combination series and parallel circuit to a voltad8(eon2zz 9)cm nsi9c ge 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 ber mv)q, *abfgun.1m7 alow shows five identical resistors connected in a combination series and par1rv.nba,agfuqm )7* mallel 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 divf*;b:boa cnwa a )zox/23ct *agram, all of the bulbs are identical. Which bulb will be the brighte;*aoc 2 va/ fxtnc 3b*w:aobz)st?


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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 are con- x/s5uh6n clqs-0mm wnected as shown. With the switcl/-mxcns hs-wm 065 uqh 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, a switch and three r,ekkk0si))0 8vw suc9+wognfesistors are connectedos0 ig ww0ns)+9k k,kvuec)8f 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 batte dcqd/ y:3ghz2ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram 3z:/ gdc2y dqhthe ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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