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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 the metal resid h mk.y-5+s8twkr. yostor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the directisdt+ r w8ymkk. o.5yh-on 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_________each rea9x2:o:g(;np) tsx qc vlbsj/sistx) qcvagsbt(o;j/slp:n9:2x or 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 fi)r*m3r hkvkvl +oz fi w:;)b2ilament wire of a lightbulb causes the filament to become white hot, while the larger wires czwfvi k m;r* o:ilr +bk2h))v3onnected 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 househol::ib* kedd sq-d lights are being replaced with LEDs. LED is the acronym d:e- dskb:qi* for which 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 graph7c bc2hmr +/qtite 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 the new length is 1/2 L. What is the ratio of the new resistivity to the old resistivity of the cc2b/7hqmc+ tr ylindrical 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 w;swp qb4 kkidh)tj4q;t6e0.w f .0oyof the same material. Wire II has twice the diameter and twice the length of .kieb; .;6yw40f jh0)t pow4kwtdq sqI. 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 t gmvx: 29w3fzihe same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y2 v :f3x9mwigz 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 radius r. This piece of :bf0gnfogv 4(srow91 material is then drawn so that it is a cylinder with new length 2L. What happens to tgv9wb 1f4or0 (n:o fsghe 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 b5g2bs :c6tz+ujjen*bv 4ifi*righter light bulb. He decides to mozn26cvjj*i54tu:+ s*g ebb fi dify the filament. How should 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 resistors are made of the same matohiave -a,;cb4q .7 cqerial. The length and radius of each resistoqc obaca;q,i7h-ve 4 .r 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 connec )djv8y(lb-hx k. u1aated to a battery in the following way: “Two resistors are connected in series.djk-.ah8xu) v a(b1ly 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 ina )zuls 5w7bc8 the accompanying 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 voltmeterz)5uwb8sa cl 7 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 cozaiq*7 gl7w4ht/wx bn-h0 y(1k kxws:mpound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resi0 w hwzki-7ng7bslxhy4t w/x(*k aq1 :stors 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 at the right. If the current et sjf 87e20ebin all three resistors is equal, whic7e2e 8stb ej0fh 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 electt(/yo8 wz +z/z pt1ontric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs) yt+8/zot( twz/oz np 1
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 ist+4 c0;e..sdkcxo4t lhv8gf g NOT true concerning the simple circuit shown w.o .kds gv4th tfge0x;c 8c4+lhere 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 are connected innm+3y m:dxfkfd4 ;e,u,;khn t 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 is observed? mf+ t:k4u xhdnnf ;y3,dm ek,;


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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 pa4nhml:s1gv 2yp13fl4jp+ h zfss through the identified resistor in 5 seconds once th p+f j3pm1znhfg414hsyv2l:le 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 resistors in the following simple circuit have :+eqk6)hr pt wthe same resistance, which would dissipate the gkhe w :6tr+p)qreatest 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 circubqu,chpk x h9;7b3ru1mi xdhzw04;8fit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power smbc8f7h90rqu dwkxh; ,ibuh1;zp 43x upply 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 battery. Suu*s kfunx./p+xza;u :ppose R1 carxu;fup/u+k* ns.az : xries 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 are connected i2, pkj2f gq7jcn parallel to a battery. Sup7qj2 ,g kj2fcppose R1 has 2V across 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 uuh0(+bsg -uevolts. What is the maximum value of the current uu+eb0-u s(hu gnder 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 r c kfq i6;s9x.b+ta,kaesistance of a 60 watt lightbulb designed to operate at 120 vq; iakafbxs+ ,ct69k.olts?

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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 curre(n e)o30sue*m ozlxhi3pswv(z 2 0 i0gnt flows through a 4 ohm resistor that is dissipating 36 watts oz(mg pv ) si*0(xwihn02s ouz0oe3 l3ef 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 pfo2vv6rrh93ttz n b4-+69avdk oxz2nress clothes is marked "120 volt, 600 watt.” In nor9tv3nnz- kr d2xzvhva6462+b o9 rto fmal use, 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 resistances coulk z k;2uph(.3+mmbont7y 5xxc d NOT be produced by a circuit containing onl2mkp+7.x3ou c; y(nk mtz xbh5y three 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 three 1.0 Ω resistors. Whic 3u/vk8o doco7h of the following equivalent resistances CANNOT be produced using alo73oc/ uv8kod l 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 o wl5ckfa6 1.cvf different values can be connected together in different configurations. If all three resistors are used in a cv5c cwk1 .lf6aircuit, 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 resistor is connected to a battery, a ts9y rz+m2e6f total power P is dissipated in the circuit. How much total power is dissipated in a circuz 2fs rmy+6e9tit 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 resistors, having re+zq:u;qsvm *+b xmd0/fq oaj (sistance R1 and R2, are connected in parallel, the equivalent resistance vj mz( xf:m+qs ub/;oa+q0 *dqof 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 resi)vuj;7 ee-uue sq(kd w/5 a+p1mgg ix-stance of 12Ω when operating at 120 volts. What is the a pwdu- v u-+s/ ge)qe(ekgu7;im1x5j 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 4gpli43.jox ojzlcr x*,u 4q )snsb+* flows through a 4 ohm resistor that is dissipating 36 watts oiu zojs4 3*+*bq4p,nr).lsxog j4xlc f 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 draws 13 amperes of current when connected to 120 *xghypy 6fm m43lh(q .gjjd/d eq9 wcs8-ye0 7volts. If the price of elecc9d 6 y-/4h wxhm0j mf *yy3.j8pl7gegqesd(qtricity 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 cosfyh q mia9;ak611w7tu t to keep a 100W lightbulb lit continuously for 1 y11ak6;y7mqa u wiht9fear 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 ligh/)k2cou a c8qitbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistan8k a/oquic2)cce 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 i/,gs 8 om j5+vx0fp1eh+km,+mpfd *ofav4 sbowns a computer rated at 500 watts in a 120fo f,vm + bpj,1 vh+/*5p4mes 0kdmgf xoai+8s V circuit. If all computers are plugged into a single circuit protected 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)28xxgoq tmm.b )ni u4 four resistors to form a simple circuit a4)tmx xnguoq b mi)8.2s 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 founa.o .x0 s4h5s-icm;e/wrvw:7pdchnr resistors to form a simple circuit as shoaoc-/.m7nh;s 5ixpsh:erwdcnw0 v4. wn 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 resistor65gs/5mre 2 leiya/sns are connected as shown. With the switch open as shown in the diagram the ammete 65mys5si a e//nrgl2er 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 anvbe 8gjm,;vc lkv1z3 1d three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.bc31gv l z8m1jkv ;v,e0 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 threg ;zu3(49gz9b u91cfx h r,4p8 q,mwaljybjgge resistors are connected as shown. With the switb1 ql(3 yh;jz9zm gbu9gxj8f ucr4g,pwag4, 9 ch 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 right, what is the equivalent resistahvi * +nxbkvx:,j9a; 0n yqg2gnce? Assume that all wires are ideal, the battery has no internal resistance, and all three resistorky;xn ,vv gi* hqb0a+ :9njx2gs 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 th*u818ayimu)ep q:s o ge right with resiqu oyum 8*esg8ipa )1:stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 f(tl 3c (vzr:3d1znnn evs/a /+iub8dgive identical resistors connected in a combination series and parallel circuit to a volu3/(/vti nrelbvn 8(3 dcd1:+zgznastage 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 connen85 csh x2awovzyv6/t i,(ci4cted in a combination svn5wt yzi64,sh8cao v2/(xcieries and parallel 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 diagram, all 2ww;ew5)lbvb8c cc2 e of the bulbs are identical. Which bulb will be the wbcv )2w2b e5wce8;cl 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 resistor, buqb:u/o ax+9du; nes are connected as shown. With the switch +oadbuue /: ,b;nqx9 uopen 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 are4)/osfi + ,f gic ofli,dnli68 connected as shown. With the switch open as shown i i +i4,/fldsi,f)f8lnoo6igcn 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 ammf;z.i vh*:a odeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagraf d oz*ha:i;.vm the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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