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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 thp;o lqbu js) l-ky9,d5e metal resistor connected to the battery. Which one of ;b ql5-plk,uyjd )s9o 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 parallel, then 7 ttega;o;il0p 7bju8p;k s;_________each resistor is the s peblni7t7spka;t0u; oj8g;;ame.

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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 filamg )der050xnb 5 9ef80ra8dkf1 gcm yusent to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happenx dfbckmed0r51 rfa0 95y)e880u g ngss 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 LE se f4so m6h;rslhe8fn p4d588Ds. LED is the acronym for which one of the followi; phr8desfmelf 5 4sn68o48s hng 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 re+-b rn(b:tvi 4ov s*qvsistor 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 resis* s4n: br-(vobi+vvtqtivity 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 wivze9kl7n7og67ec spifuuy qs ;,(p 71re II are made of the same material. Wire II has twice the diameter and twice the length of I. If Ifqe7z7 sis,nuo ( pky677ue9;gp1lcv 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 diaxzx7 c3( rzqbooj6 tp( n /5nu+6wnw3mmeter and half the length of wire X. If wirenwxnw(m3ntjz bq /rocxu3 6z+o(6 75p 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 Lk-fg/fsi-jzqj o :,7 f and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the rgz s-j -7,if j:okffq/esistance 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 Thomao(3lj/rk pi l5s Edison 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 3jkp(/li rlo5 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 material. The lengv 68b3 r, ytergxc:a2cth and radius of eac6vxry8ag3:c r2tb , ceh 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, each of resislwif4 hx3j3* otwqxd*4xh(l c k. 0v(gtance 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. This set of three resistors is connected in h x (k j*qtl4whlv*.0dxgi (ox334wfcseries 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 hark u: e/g+zx 8z/kkiwkuf d0..s internal resistance 10.0 kW and the ammeter has internal resd: +kz.gkfkzkw8 x 0//e.ruiuistance 25.0 ohm. The ammeter 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 circmelmn 6. izofuc0w/5x47xz/ kuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagraikfzmcm0l/o 4xe5 .7n 6x /zwum
- 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 righjvh;g,m, qn7w t. If the current in all three resistors is equal, which of the following statements mu7hqv nj,m;, gwst 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 simpl6t w,:civa+ dee electric circuit composed of 5 identical light bulbs and 2 flashcadte:i+v 6,wlight 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 the simple circu 61,vq h4 r,yvyv4 ox(h/nkhcbit shown where resistors R1, R2 and R3 are have equal resistances? qhc(ovk6v /n4 h,vhbr,4y 1xy


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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 *q*8idy odk 1qod4/foed in series to a battery. Bulb X is brighter than b8/k df* d1*qoo 4idoqyulb 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?


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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 w5yz39,v jjdh0wh*4)yelmez6n e ap ,lill pass through the identified resistor in 5 seconds once 6zh*,)ee lhwy9j5eazn p ,4 l3jvmd0y the 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 simplegj 1qqr9gd( o o0n2r(ks0ttp9 circuit have the same resistance2p 10t0q9tn og 9dg(koj sqr(r, 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 accompv *)wc99 np1zv /mu(s,t9vahtotx)f sanying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the)s s9*wvf(anxt,c uvvo19tzm9) h pt/ 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 batterybjk;bl8.x eh+. Suppose R1 carries a current of 2.0 A, R2bb 8+;elk.x hj 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 in parallel to a bsvi5utc+;t c7 7l2*c w3gpmn nr*bkw2attery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the curre77*pvr2 + s2 nluwb ctw*ic;n5gkct3mnt 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 ()az va tlyo1/is the maximum avazo)/(tly 1value 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 lv3(1v h5pegb nightbulb designed to operate at 120 volt 3bvpge51(nvh s?

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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 dissipd v8:dyfxef/0q1w1 d lating 36 watts of pow q0wd:x18vydl df fe1/er?

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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, 600 s 7ce:f px9abq-c -qy;3l0nb awatt.” In normal use, the current in it c7sy b-bx3a ae-p n;lc0 f:q9qis

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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 could NOT be produced 14u alv+fygumu2lc.3 ld s:khwmyr6d+7b 1j*by a circuit containing only three identical 6Ω resifh7 uk rswv1+jd4 m. 2ll6dubl +u:*ya31ymcgstors?

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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 p cej9:krnt69 following equivalent resistancejnt:9ekc96 r ps CANNOT 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 of different values can bc8j,xw)ae8c p m55taue connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance pxcc8)8ja,uw m 5a5etcan 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 tox3c+w i+zeblrf+i ) pw g7v/3v 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 internal resistance of tbei +c/3)7rvf ix w3v wgplz++he 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 ff7(+tp qr+fe/h p/uqR1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements abo7/u q+prhftq /epff+( ut 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 hu3nnr ;x te/0wag* f;3zs7cqsuch that it has a resistance of 12Ω when operating at 120 volts. What is the mr *twzcne30s /; axuf73 qngh;inimum 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 flowg) * vj-wbixs;s through a 4 ohm resistor that is dissipating 36 wattsv wj xi)b*s-g; of 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 1nq 8vpdgy4:y1lf;nu* jp+5j j 20 volts. If the pric +pu;pnd1q fjyjyg v*8n j45:le 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 keepoqh6+unt6 k 4b +9zgo jw8o*ci a 100W lightbulb lit continuoq ubh koo*ztc8 +9nw6 go6i4j+usly for 1 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 f+bgorfo:rtv u73+ a)j9o/z c A through a lightbulb results in a power of 24.0 W associa +uf 9ot7rrg: o+j/fzc)bov3ated with 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 ofd 710c4j bioau six owns a computer rated at 500 watts in a 120 V circuit. If all compua70j bui1 4codters 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 four resistors to hx-,j 9ey) eptform a simple circuit as shown to hy,jx)e9-e pt 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 conne o mhpdk3q9k4at9:pb1 cted to four resistors to form a simple circuit as shown td:3tk a h b9p1pkq4m9oo 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 swith mpci*0ww +p9ch and three resistors are connected as shownp*hmc 0+i wwp9. 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 switw cc bj2,: z+8b;jmuhkch and three resistors are connected as shown. With the switch open as sho+8;khbjc,uc:jwbz 2 mwn 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, i90m-o 4xfn)fnhb0ncwv6rlz lin1 y p+6e55 o a switch and three resistors are connected as shown. With the switch open as shown in thynrwcp5nfi1 0ov)9 l 560hobzmn6 lf-x ie+n 4e 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 resistance?p8*or(tod +hx Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have ohxd*optr8 +( 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 c.o8peu68 xdbaxw nc1-ircuit shown to the right with resisao d1x 8u.8npc6b- xewtances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 res jabdf4oyk) i enjjpb(96b1:4istors connected in a combination series and parall kjj 1(9 6)d:bbb4oap4fyjienel 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 ipd mj9xq,gq50 n a combination series and parallel circuit to a volgp,95xjd0q m qtage 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. Whzhpr3xa /o79 yich bulb will be th/7ropy x a9hz3e 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)a;afspfdp kpq 4kt+xz5mc0 emy*c- p5,gg73 ammeter, a switch and three resistors are connected as shown. With the swid*m-a45pk zc)gpy+efpgsm7;caxq,0 pk3 t5f 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battej. -qiivqsdbyy * b0(7ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the am7 *yqv (yqi.jb-d0isbmeter 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 ammet(ay/9n junlcv-e+ tm 6er, a switch and three resistors are connected as shown. With the switch open as shown in the diagrc/( yvjemu n6anl 9-t+am the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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