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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 exmt )ta--d*tkn5 sdhq7ists in the metal resistor connected to the battery. Which one of the )d5-thkqta*7 mnt-sd 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 connectedhtq1xufxe9 a781b i *5wkal ;2 kehz pjgx4.6c in parallel, the_________each resistor is the sab2gjcz ;h 7h1 ua5*kea6qwlkiftp.981xe4 x x me.

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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 lightbp/a d q9t7g yww(l:1urulb causes the filament to become white hot, while thq ad y1p7:9u/lgw (wtre 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 replaced with LEDs. n3h-ue uuv1.;6sluve LED is the acronym for which one of the follovu ;u3 v1-hn su6lue.ewing 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 L and cross-sectionar x/;eq*gouj )9no lcfu0 d1t*l 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. What is the ratio of the new resistivity to the old resis ltg;1 0q*cu*)9nex jorf/ doutivity 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 t qx:f.3ybmr-xhe diameter and twice the l: qf-. rybmx3xength 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 hasx 5l(;,v pdjku twice the diameter and half t;xv d u5lpj,(khe length of wire X. If wire 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 length L and r6q 0re 99( 3hqlj1 so46hfaztaf;i hcqadius r. This piece of material is then drawn so that it is a c603j6ih 99o tzafq4q1hraqh( c sfel;ylinder 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 waagmi.f1vh 61 ants 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. if6hmgv 1a1auce 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 are made of the sam 22w8slnotoj yxwhl--j5;xx.e material. The length and radius of each rn jooy-;8xh -tsx2 ll2.wj xw5esistor 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 batowyh9w;bb6i- tery in the following 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 arrang- oywb 9hwib;6ement 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 9pr 7q4t 4af ly;a6,wt5inb(i4e k 6cmnedl8xresistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammete(4akln cxfn;,9 rae5imdtyp4e8bt l6w764 iqr 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 thr8e(+a 4a mc6nkf2h bieee bulbs 1, 2, and 3 - represe f(akcbehi 42m6e8+na nted 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 a*p.1 hr 6nscost the right. If the current in all three resistors is equal, which of the following state1hpnoss.cr 6*ments 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 riol;v5h*bl, hj ght represents a simple electric circuit composed of 5 identical ligjbll, h5oh;v*ht 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 statements is NOT true concerning thydwy*qzu: *vi u:, 6vbe simple circuit shown where:y ivubu*dvqw ,6yz*: resistors 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: lp -qec)xvr.xxak28 are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If q2axrkl8x cx-p:) ev. 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 coulombaafq,rj9/)*l- rc- islkj tr:s will pass through the identified resistor in 5 seconds once tq- clal /9j-tr,jf:*) s krirahe 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 resistoax6nm9unup 540uu 0nnrs in the following simple circuit have the same resistance, which would di um4pux60n5n 0un a9nussipate 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 v,ynvgkv+,lh:okt5tao72qhs ;)cx:wl w 2/k current through the 6.0 Ω resistor is 1.0 A. Whatk:vqw)2o, yg5hvt/o7s;+ hw ca l vnlt, xk:2k 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,m2vyl 21o94fk f.;pf8 qg xovw R2, and R3 are connected 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 ivq48ovkfp2m1 2 ;fx gowyfl .9s 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 aho; +he2qlik6 ndR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ωhq+o l k26ieh;, 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 104xvdpbv +/xjbfaecz84a v c i8v-35z200 watts and 120 volts. What is the maximum value of the curre50bea4 3v/a4 - djv8i fxcb8vvcxz+z pnt 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 designed to operate a8/w* 7tvbz wyxt 120 volts?xbw 7z y*w8v/t

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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 d9o-ej0dgq zl 9issipating 36 wattj0go- qzl9ed 9s 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 mdjk) ukb 3.1inarked "120 volt, 600 watt.” In normal use, the currentdkk)u. 13jbi n 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 followingrpak d-2(scy.qoni +4 resistances could NOT be produced by a circuit containing only three identical 6Ω +(a.okrq-ps cy4n id2resistors?

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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 of the following equivalent4dus+b-f rl 3ahvdm58 resistances C8dl5fh3b +r4 ds- uamvANNOT be produced 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 4hozlg;m*r5r 4egze n x6r:.iof 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 bzner4*;e5rm zg l6r hgxo.4i: e 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 .q x(bagpb)7r n6nqm(power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identagn. bn mx)prbq6(q (7ical 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 w**kz2wpb sfp xt, z)5and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is cfwkt z2 s w*)5pxz,p*borrect?

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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 reczw:s+6qq 2xy sistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it wo6+zqwx2:c sqyuld 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 dissipating 36kvk9t 9o6xsbj)(b hsb; fgy/s*:; a oi watts of ;jhsyt/;(kgfv9o:s b6 b 9kbixs)*oa 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 drawwr1z czkt(, 75vxu;t ws 13 amperes of current when connected to 120 volts. If thev;(u1tc,twz5 k w7rx z 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 100W lighd) qmmk27/ drvtbulb lit continuously for 1 year at a rate of /2 mdmrqd)7 kv$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 oug*(lst 2 uq rop;0c8gf 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best rg (* slopu0q;cg t8ur2epresents 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 rated at 500 watts in 21j uv8qmgknhb+ztmz2 z w 5+/a 120 V circuit. If all computers are plugged into a single circuit protectej znkm+ +v2qt/mb85 u z12wgzhd 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 resistors to form a simple circui+2qprtjh)d3/mv gpy0 cs;6pg t as shown to tv/yhj c;spdg mp2)qr 0gp+36the 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 battegso n9)w4 (lmery is connected to four resistors to form a simple circuit asgl4nms9 (o)ew 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(h c7;yl hovrnt-q7:a switch and three resistors are connected as show tvlo car: hq;hy77(-nn. 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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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 r9bne mf2 v-s+ -o:smex22abqyesistors are connected as shown. With the switch open as shown in the diagnemb 92y2+vs sba: -qxomf- 2eram 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 +u(g6etagupn 7c5) 77 uvlqqgare connected as shown. With the switch open as +v c ung7qq5 g(7)ulutpe6ga7shown 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 equije .mdexi,.:6 -dqv fmvalent resistance? Assume that all wires are d jmm:, i.d-efv .qex6ideal, 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 with re /obzk: y7/16;abrswcai vkr,s1 kyzok;bs,r /wavcr 76a /:ibistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 sho9urc n6n48cpas mwxj/r t 0.;tws five identical resistors connected in a combination jtn0natr8r swp ;xu9c/m 4c.6series 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 shows five identical resistors connected in a combinativ8u1y/x gi1u gon series and parallel circuit to a voltag1vugg/ 8xiy1ue 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 s+j9q8p0ij 7mnzgbv( identical. Which bulb will be t(7s 9j0pz+njibqmv8g he 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 ane1+/xe*p4/ hawxuc akd three resistors are connected as shown. With the switch open as shown in the diagram w*4 pah e+cexux1/ /kathe 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 rvapb039l 0 g,arj3r* c 1ev hpah.6jaresistors are connected as shown. With.ac00e ,agrlr*pjv3j9a6 h rbphv a31 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, a swit) 0tiey+swvr2 jzm (*bch and three resistors are connebvs tz() 02wmy*rji+ected 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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