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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 thod g4i u9t/vwqk:*e 841kk ltc+:ulzbe metal resistor connected to4+l8zu:kk14kg:biu/vcqd to 9l we* t 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 para lq2pj6z.o l uu*0,e/ieo1uu fllel, the_________each resistor is the lq2i0p.fze1lo,u*eu/ouu6j 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 filznp1 qxlq:p7 3ament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This 3x71q:nlqpp z 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 lighuceh(7d1;e z ets are being replaced with LEDs. LED is the acronym for which7 e1hdzc(ue;e 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 length Lq3.8*ee )juyl24+ y*vsz s fewv.bzzq 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. W 2.l)bfz *qjvys e4ev8es 3u zqy+z.*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 matejnbbc+ )41 pnhn 8/mahrial. Wire II has twice the diameter an4jnbc/b8 n h1)pmh+ and twice the length of I. If 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 material but has twice the diameter ad q+x2jxj;d; ckdj;i/b;tyt (nd half the length of wire X. If wire X has a resistance of R then wire Y would have a resist;jd;cx+/ ;t qjtkxy i(dbj2;dance 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 ande 20 s;:b3(2futgv oagki jn)j radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. Whab2v ;i0 g( ) jg:esk32taoujnft 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 Ediso );qk0 th*1dtv8huwou n wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb prod)utv;tqhd1ow u h8*k0uce 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 wayou; :+(j s2p c diqj;z+at(are made of the same material. The length and radius of e+q+2azjwc;sod;(ya : (utij pach 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, ea)a ylulv 5hlceo:6;f 1ch of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor. Thishl;a el)vu1fy:l 5co6 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 diagram has internal resist3nt2;a57 7q zaxaz kdlance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter 7q3a27zz tkaxal5d; n 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 sw o (,mgbl-nm07,g skahown to the right. The three bulbs 1, 2, and 3 - represented as resistors iagobm sg 7-,w0l,knm (n 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 current in all tde3 v*umy*2vm hv f2r1hree resistors is equal, v3fyh r2mv **de1uv2m 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 el0 w8,oi3a4ry be ,b-ap( kcmecectric circuit composed of 5 identical lier(kw3b-ym pc,e80aoi b 4ca,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 following so 2v2tdbike6nh;u4m5w/ cj9u tatements is NOT true concerning the simple circuit shown where resistors R1, R2 abc 2k;u9 m4u/dtn2ijw oe5h6vnd 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 lightbulb.eh .lw-h 1itas X andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assul .th-hawi. e1me 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 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 identi4hg4 la j :eis yvhvn3 ,we;ib69nk/2efied resistor in 5 seconds once then2g vw 6 ek9 jshyl4:e;h/ea,b 4nii3v circuit 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 a. omk 8qc60ut /eo5x2 cth9sn resistors in the following simple circuit have the same resistance, which would 82eqc.kt/nmc6 o5hxatus09o 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, the current through thet*dq2w9xow7c72 4x l) uvtje mt4v0vx 6.0 Ω resistor is 1.0 A. v2xmo v0xwquecv7t ttd j24)4lx9w*7What 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 in series to a battery9gt jg9v k,d1+t oxt)s. 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 voltaoj9+)9s g1v td,xtgk tge 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 are connected u1e6 6q5mmlis,rzv b 5 ypi-o5in parallel to a battery. Suppose R1 has 2V azul5y 6 p1v5b6m 5rsoqem-,iicross 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 maxim,e(l6nzv jdy1 um value of the1l(ed nz,j 6vy 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 desib*d 3 exuc0lm+gned to operate at 120 xc3bl0+u*m e dvolts?

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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 trl)z k d0m;q4rhat is dissipating 36 wattq;rr d zl40m)ks of 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,1bo0uvdq y915;o ri kt br7t7k87whbe 600 watt.” In normal use,td91hb8 v ;r7eroykkb5 1w7iou tq07b the 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 resg1vh j s528/s14 fq-dmc9pkynb xy f,cistances could NOT be produced by a circuit containing only three identical 6Ω dj 18cvx4 /qh g1nf9y,mspb2k 5fsyc-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. Which y3nrg 2s 5bpbzts/-c(of the following equivalent resistances CANNOT be produced using all three resi5s-z/n g3btbc s2p (rystors?

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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 cs: )ci/inrr1u an be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produc1c srn/ ri)ui:ed?

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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/:zhxn,( kahnn96o+(b jcu j jp4gsm :, a total power P is dissip:,knnnb(+x pjhju9hagm cj:z(/ 6s4o ated 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 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 resistu,) ;lsghc9bq7b /ooeb 71lt lors, 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 correh7o /c be)uq7 ob,b9ltgsl1l;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 designed such that it has a resistance of 12Ω when operat) gkj (x+;myvbs +kxx9ing at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water from xbjks+;) +v g xy9(kmx$15^{\circ}C$ 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.kc(gdwx:arj+k83 o mo57lrz 4 ohm resistor that is dissipating 36 watts of kmrklcxwa+d3( o 8:.zor j57gpower?

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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 to 120 volts/-sh+rn,yr ks. If , /h-nsrsy+ rkthe price 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 it cost to keep a 100awks/ ov.j5x9W lightbulb lit continuously for 1 year at a 9jo x.s wkv/5arate 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 axx-fsb n;s g+7 power of 24.0 W associated with the bulb. Which one of the following choices best ;+xfgsn-bxs 7 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 computerm(pb .*o kg0sb rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit pr0bmsogb* .k(potected 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 c fs4i.yk9p d2iwt+x0j : oi/oto four resistors to form a simple circuit as show 4+jd s0:xtyo o/9iw.f2kpciin 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 revsf. q hz,3 (la-sgo2usistors to form a simple circuit as shown to the right.s3( a-lg2fvhqszo.,u
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, 44 uxrhm82+oh)fvo ywan ideal ammeter, a switch and three resistors are connected as shown. With the swiym8xr4+ho4f2 vh) uwo tch 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 sw75q6hq hc+hvqi/4ojlc)l ;: v. naawvitch and three resistors are connected as shown. With the switch open as shown in the diagram the cavc/ah 5 7 il v6 .ohl4qw+hq;v:jq)nammeter 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 switc6fxm0v.s -)le(mjft ih and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads)f( -0ivjmfe6msx .lt 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 resistance?jl) 55ddrj84q *imevv Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistalj5)8*jmird5q vdev4nce 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 resin xqh+d)0tri2h7jci3,q 2 s .g,wbv ctstance of the circuit shown to the right with resis,gbwqcj27 v32.)xd iq c hr tst+nh0,itances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ideo cadq/x hhvo;h81v) :ntical resistors connected in a combination hahvo1; vdocq 8/)x :hseries and parallel circuit 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 sh 2; z zv0gz1lal.hpro3wkck/3ows five identical resistors connected in a combination series and parallel circuit k zap2 g1z/l.0;o lk3rc3vwhzto 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 th,/zyijku;m2 dyu2n9 ee bulbs are identical. Which bulb will be u y 2dj2;ynm9u,z eki/the 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:b 6fu.yo l*qu switch and three resistors are connec*qf u: 6yub.loted as shown. 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, an ideal ammeter, a switch and three resistors are conn d;ri;py+-r1.ksa8 p9vqcsf qected as shown. With the switch open as shown in the diagram the ammeter read19ca;fki-. r sp rsv q8+pyqd;s 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 resistos ftv(z).d(sh rs are connected as shown. With the switch open as shown in the diagr ((tz.)hsvsdf am the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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