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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 e zeb u 1yy2k2ucl)cznyq rpc02cz:++.xists 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 direct1rcpu2bculy20e+)qkz:n yz +. c2 yzcion 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_________eackscc(w7 m z*6ah resistor is cmz (76kws*a cthe 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 )5c1jjln) k.hgioe8hof a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. T ekh8cj5 lj ))gon.ih1his 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 the azs ; 4q2(lqopinm ev12cronym for which one of tq2(ims;o 1p 2z q4elvnhe 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 r 2 mdn1w7 ig)f+ofo)obesistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut ifi n+2odmo7o g)wfb1)n 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 the0 d s8lc dk z0hv:uw+68ajyt+g same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has res+6vt sdu:cayg0 zl8wh 0 jd8+kistance

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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 mo;ac8cih97 rmik+ex5 c jxd fw8o.n ).aterial but has twice the diameter and half the length of wire X. If wire X has a resistance of R t .cf) jed8n mc xoc;wk8.ihor +ax57i9hen 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 r6enzo* 2arbv* esistor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happ b*a*nz oev62rens 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 lighje vyh sgz0sf.;t*z9:t bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given vstv*e f9:h;0y z.j gzsoltage?


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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 mathn 94(res)in serial. The length and radius of each ren4 sirn)(h9 sesistor 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 reh9ji2+xymxl9qm8e1a 5sl +iesistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is cone x+emml+5 ysi 29h9i8xalqj1nected 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 accomu)y2u e-1cdr .,z iwalpanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most ne)i2 we.d -u, uzr1clyaarly:


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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:cm kl 1m+,cz2(f) qh8oqgqnn, 2, and 3 - represented as resistors in the diagq ohcn1gknm2f, (+l:z8qmqc)ram
- 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 cirgco;g)v1b1o x cuit at the right. If the current in all three resistors is equal, which of the following statementb g1ogxc; vo)1s 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 compoc8nt:b3wsv3y sed of 5 identical lib :vsycw3n3t8 ght 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 ,up0zdth 0i,s35 arzvwb d :g7following statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resiga,, s03rdvw0tpzbi: h dz7u5stances?


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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 connect,))y fmsgj) +2pndacy ed in series to a battery. Bulb X is brighter than 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 c))y2 ny,j)dgsaf m+p 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 h1 pnwp w0gu/5identified resistor in 5 seconds once the circuiw5 1p npgw0u/ht 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 the following simple circuit have hqc37*-:i ukyu deej;the same resii3qky: 7u*-jd ;eehucstance, 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 diagram, th,6t l1eun;mc3gnv c/rn -9 snae current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V? ncc m93 r/t-en6a,sn;1guvln


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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;v (+as(mzhj*ecji2 4vyhp/v0ft z4s3e t ny5, and R3 are connected in series to a battery. Suppose R 2shm+f(5pzv as/j0zy4 3e(h ntyjve;c*4t iv1 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?

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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 arabc+p wnvv1/e v5ytps9a9 9: 7ztvj3de connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, anpwcj:yn /5tdbae vs9 t1avp79+vv z39d 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 maxbi 6.ze-ieu j*xaf,0limum value of f. 6 x-0,uiiebj zale*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 rw605p 7(w mnrhjchr (mesistance of a 60 watt lightbulb designed to operate at 120 vowpmhwr60 n(mh5j r c7(lts?

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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 throughb0v lv r ocngts9).m*8 a 4 ohm resistor that is dissipating 36 watts of pov0srv.b)*otcmg89 lnwer?

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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 markedn:6,t yxr6rdqj;k8.fg6eh q u "120 volt, 600 watt.” In normal use, the current in ih8ft qqex. k666 y:nur,gjd;rt 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 resistan xc kliv2*v0, 5 0lv;gc3uz pn+arp.euces could NOT be produced by a circuit containing only three identical 6Ω 0*;ul ea5p 0gvv rv.u c,2+npcikx3zl 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 resistv ng3;hw66mk i6rwm u,ors. Which of the following equivalent resistances CANNOT be producmk,rmwniv h uwg;636 6ed 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 ofz 6z34tirw m1r different values can be connected together in differentw6r14 zrmi3tz configurations. If all three resistors are 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 resistoq:e p;-do6 bg/x+ i -inopzcp8r 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 dz:6bi;pqo ge--x/i nopp c +8identical 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 resistance R1 and R2, n;2rq3/7 i9hhns m rm8 *bqtxjare connected in parallel, the equivalent resistance of the combin28m/shqthi9 j;m 3rb x7nrnq* ation 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 1kuk z4 .4fqkdz z/e spg2mg0f0fcf4,92Ω when operating at 120 volts. What is the minimum amount of time tha4g fqzkd/2m .s0 zfk ,ef9g z4p0cf4kut 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 dissi))0yw ik maf*epating 36 watts of ifak*eym ))0wpower?

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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 hea1dbyj)dl3oc52x d t p7( 3hou1tg;t p; ngbk0dter draws 13 amperes of current when connected to 120 volts. If the price of electricity is ;2old;5 3 g)gkt0p3h1udyddconx(bj t71b p t$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 lightbulenh8ue i hxr+o 8v373mh*bz l,b lit continuously for 1 year at a rateizhnv8lr 38h+*e o,37um bx eh 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 curr 7f,) icf ).uyuq6inkvm)+y yqent of 4.00 A through a lightbulb results in a power of 24.0 W associated with ).yky)qumyc ,6ifvi fu7q)n + the bulb. Which 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 lj+w4ei: j:jbiwc5w8 /aaq2j six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit prw8q 2/:5w4ia j +jic:wejbja lotected 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 resivxa)j0h*dj s;sh :yq 9stors to form a simple circuit a 0hdh j:sva9qxjs;*)ys 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 hvvx).qm e 2o;0l,t nzresistors to form a simple circuit as shown to the r,vtzlq eho 0mn2v ).;xight.
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, ezhxdiw.37. khtfu3f 6 o 15hyan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram th51hu6 oy hw.t zfxh3f 7.i3ekde 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 +ie7vvhc6b+rr8 t.kpideal ammeter, a switch and three resistors are connecterich+v8p t6k bv7.r+ed 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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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.ire r 2n*ylojoeb hf e4(8x+i4.di.g resistors are connectedo+hr.ig.y8ex ( i4elboinr .j 4e* d2f as 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 vc-i wv1owfw)nj*2,ym)m (ep right, what is the equivalent resistance? Assume that all wires arn)c-jve2o)vfi p (w,ym*ww m1e 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 to the right withx8t*to* b,uhr dx x5,h resistances xx8rduhht 5* ,xb*o,t$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 conne8o qsa08azo,dcted in a combination series and parallel circuit to a voltage o8q,zao8 das 0source.
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 ide(7ra/qnkj hu8dco (a :yt e;8entical resistors connected in a combination series and parallel c ye:n7ae /(cq88 r(k;autodhjircuit 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. sun,q)tq1wt syb6zx e *26c:bWhich bulb will be the brighyxb126tt:,n wz6c)bs* eq squtest?


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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 batt ahn xlt0,md3 qzq.ta 0,est:3ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in ths q3t,:la ,h0xmd0qn3e t tz.ae 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 at gnddob0/2)jjc8is9 mmeter, a switch and three resistors are connected as shown. With the switch opdnj 0 t8)c/ogbdi9sj2 en 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 ilbp dz8: ck0j4deal ammeter, a switch and three resistors are connected as sho0:kb8 jdlc 4pzwn. 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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