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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 circuitmkd. ( 9 m 1pzk1irbbe-qa40qt shown, an electric current exists in the metal resistor connected 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 ofk19bmkrt- izbe(d4pq.1 0aqm 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 r09fk sm:maexau5ooj *m *w ytb4j) jf7.c4d;hesistors are connected in parallel, the_________each resistor is the *yfc7fhm) *b4m5tx4osj:;o .a90mkjea jwu d 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 li 44arh:naipa1h e2n,m ghtbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens b 2nah, epr han4mia41:ecause

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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(r bk5m:pb8k,d zmza- household lights are being replaced with LEDs. LED is the acronym for which one of the following choices8k,p5 bk(-mdm :abz rz?

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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 rese8 :v ims1u 9**5uq7bao3r)ktruul q bistor has length L and cross-sectional area A. It is to be placed into a:btu3k*l b)r us *91ou5 iquavmerq78 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 twice th)7 yo7a 5a/ a /enqurjf;.ktute diameter and twice the length of I. If5o;un.k / t 7t/arayq7efu)ja I has resistance 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 mth+ 6 khy1bzdzjw8 n2/aterial but has twice the diameter and half the length of wire X. If wiret1jzw8b 6 kh2dy /+hzn 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 lengthqsl8/. o4iktv L and radius r. This piece of material is then drawn so that it is a cylinder withs/qlv 8t.kio 4 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 bui4 m9hvjph3)glb. He decides to modify the filament. How shohh4jg 39mv i)puld 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 resistoa vp:i 1il9pc8 tvh:ch pd(j;5rs are made of the same material. The length and radius of each resistolv( itjh 89:h;pipp: vc51acdr 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 battere-. tnv68c 3e1rz:43skarw qb-xqxt8 j unf4l y in the following way: “.- t ze3uakqv8jrfn xbe3ls4r- t1w4 6ncx 8q: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 cw4: 6mhwup cyx3+ygh7) 8ngkoircuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmec3opm gh6y 7xg:hy 4uw8wk)n+ ter 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. 3*dlwygq a8(ni t*meh:z 6d-iThe three bulbs 1, 2, and 3 - represented as resistors in the diagr:ye- wma *3hndzt6iil( q8*gd am
- 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 c+a h8tb scv11rurrent in all three resistors is br1 t +vsc1a8hequal, 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 repro*fo f0)0yc4 geq5 3f.x ms:sndmvz x-esents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bu4o -xfcs . vdsxzn50q*ge ff0om: m3)ylb (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+2juk;nej +mt statements is NOT true concerning the simple circuit shown where resi u+2k+jjemtn; stors 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. Bulb X nhas 0nn2 1lnek:y(5 zx 2jn:uis brighter than bulb Y. Assume all circuit elements are ideal. If bulbs: z2:naujnehly 2nn 0nxs1 k(5 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 resistor in fp*/kts (ru5j r4gi 8x 5 seconds once the csuti rgr8 jpfkx*/5( 4ircuit 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 thef rfi8/ozcy rd 3s5v+c57co c( following simple circuit have the same resis icyd7(c/3z5cr5f +o vr8fco 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 accompanying circuit diagrx37bu t5go4h wqswo(gn() k 0uam, the current through the 6.0 Ω resis)wkw075tqh g(xn 3 guo4bosu(tor is 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 connectrk 7t)jqqzv. ysx,l55*x zhs 7ed 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 volta )xvyjqq*s x,.hk z77lrs5z t5ge 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 +nc0-in0v xbn2vp3 eeresistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω -v0nenev p0xb2n ci+3, 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 1167k7c9k / u cjuqwnsy200 watts and 120 volts. What is the maximum valueyn 1sujkk7cw9/6u c7q of 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-*am6(mstp lxty;g v 3se h3y6 designed to operate at 120 vohxvs;3t pm 6eml gt6*3-y(a yslts?

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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 isw e,pyel z. lt1s4*8zzk3 s,4nn e8ghe dissipating 36 watts of powe ,y,phen3sz4e lztlezkg 4s8*8en.1w r?

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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 nh v08/09awn :yjjm *fbrmlm7clothes is marked "120 volt, 600 watt.” In normal use, the cur b*mvnm7r m jja0 w/f8n:0l9yhrent 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 couldiiwn/.(5u2u * lm ue0vkafg8r NOT be produced by a circuit containing only threelruiu2 w.8k ae/ u(vn0fg *5mi 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 thlc* 8 .sap*pchree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resistors.8s h*lc apcp*?

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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 diffev .neu,kr8(q prent values can be connected together in different configurations. If all three resistors are used in a circuit, how many differen v enr,(uq8p.kt 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 t. vzv4z*hen w3o 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 int.4vzn3v *ehzw ernal 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,b- ouqga33 v:t having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correuv btq33og-a:ct?

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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 desigfbw )nt 8+9tz;eyg l7pned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.7w yf9p)bt+t8 gznel;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 wt.*z18bfy3q tgs4uhxz+lq5ie)yb03h ip x d:atts of power? hzb35zets)y +18 gi3 fth4q0: u*.xqbilypdx

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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 22 zf2y.p2cxx q l n2tj(js+jacurrent when connected to 120 volts. If the price of electricity iajs j.(f xct+np2l2 qzj 2x22ys $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 liqpx5-6j3oayk4xsunvo5;-2-lm ff8jnoy / rgghtbulb lit continuously for 18;kx 2 xo5-pvnj q3yj6la 5y/ f-gfoos4rumn- 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 lightb*miel82eao. 4exym 8 2 qrxg8dulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightboi* exgy8.422xa8dqmrlem 8 e ulb?

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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 comp)x qcjf) s0ei,uter 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 t e,)c0 )qxsjifhe 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 fouru7 )z ro.rzy.)-gr4hs:xxok a4jffi / resistors to form a simple circuit :.j)o)/ rkr 47szuxh- yz. igr4faxofas 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 i4z*bin9lebq d uq:r g+06qus: s connected to four resistors to form a simple circuit as shown to th szrilq e n:+qbd0:qb uu4g96*e 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 kz5+vrvaf5i. lc 2vo /ammeter, a switch and three resistors are connected as shown. .i ko5f/ l+avrzc5v2vWith 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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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 three resistors4fa/3i4rz+ n 6 s2yv.iz.ka9ebc cwnx are connected as shown. With the switch open as shown in the diagram the ammetera+n isy/i 3. 6nvz2fbc 4ae9z.4x rckw 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 area*,r* thfee/m connected as shown. With the switch opa t/m*f*eerh ,en 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 ton9 /esmcv.u67o -wtjy the right, what is the equivalent resistance? Assume that all wswmyt-uo c9 /enj.v6 7ires 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 circuit show( pr6 hj kjb:71zbb8e; bfigd5fziz;4n to the right with resistancezjjd f; g7(ebhi r1fzibpkz:8 b;564bs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fi*z b5ddfy(w(v, ; ybqkve identical resistors connected in a combination series and parallel circuit to a voltage source(fby d5bqz dy;(*v, kw.
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 connected in a combinatiiq0 s5apofwht-d- mtp 09):dmon series and parallel circh tsd atqp0pdo9-m wf50-i:)muit 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 thetfzb ,/y3 ie 0s/daf)f bulbs are identical. Which bulb will be tff / )sz,/dtiafybe3 0he 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 aretczzoes/m c).ni )n. 6 connected as shown. With the switch open as shown in the diagram the amme )nesmz/c.czno)6 t .iter 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 idealfo ts/4tpl1*o4kngnvx*fqp;um-5-an/ kgk / ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetu qpm5tfk/ 4g1 /po-vknna;so 4t/*f*xgkn- l er 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 three resisat0ft(.uxk;,a qkwb0 tors are connected as shown. With the switch open as shown in the diagr,a.0 x( ufw akqtb0;ktam the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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