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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 cuo9v3gh0;vcm krrent exists 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 direction of the electric field through th3 v0hmg v9kc;oe 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 resisto(v:rf* +dek 2on9td lzrs are connected in parallel, the_________each resistor is the saved: r+dl 2okn9f( zt*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 fit *qvel(5 jq.glament wire of a lightbulb causes the filamevq *etg. q(5jlnt to become white hot, while the 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 rhtwdf d tb1fp(4li ub(tj(o:*f(kr8gb* q2 5neplaced with LEDs. LED is the acronym for wflwi8 1(hb4t2ufr b*fp 5djboktgt*:(d(nq ( hich 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 9)g6;)z l2xdv yuiwq iresistor has length L and cross-sectional area A. It is to be placed into a circuit, but 2)lwq9;xy dz6) giviuit 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 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 wirg*9/gzay( (krjqq8uq/iun g)e II are made of the same material. Wire II has twice the diameter and twice the length of I. uijq /g *(89gygqk(/ )qz urna 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 has3ovb0kp w3x(dff in 2. twice the diameter and half the length of wire X. If wire X has fi (xk3w vfn2pd.0b3o 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 x hzvvms 2be+a-s;; :vwkc0l8radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of this p mek0shvvs w;+2c ;vazl: -b8xrocess?

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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 fn o dvv9dw75-a brighter light bulb. He decides to modify the filament. How should the filament - v7of dv9n5dwof 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 resi+wwc3iee1 9vq)5 gddqstors are made of the same material. The length and radius of each resistor is:+9d wqv53c)eqg1ew i d
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 conne9.krvi5 iw (z;ryw9ui cted 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 t .kri9 r5y viuwwiz9(;hree 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 voltmeterbc2 m+qu-po*xi0 ekg3 in the accompanying circuit diagram has internal resistance 10o ck m-ib3pq*ge2ux +0.0 kW and the ammeter has internal resistance 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 circuit shown to the right. The three bulbs 1u4d2mhxh* bfv49l yzh; i:+r(yx zg1w, 2, and 3 - represented as resistobmx1+zhx hg uvhwifzr d2449y*l(:;y rs 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 th9f maoit/:vv )j b;x*h2ubmp2e current in all three resistors is h)omi*vb2:a pjm;vbu9 xf/2t equal, 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 right8jc hjh/)iq8(tzrq+ m represents a simple electric circuit composed of 5 identical light bul iqjz+ /)88hchtrjmq(bs 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 71ms(l oj :s1vsx( ikkis NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resista1sx m7sslki :kv1o j((nces?


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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 conneclu/ lrizx3(xcv n93 -mted 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 whl3v/z l ( xxrn9cm3u-iat 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 identified resisc)woq*m qp 8h;tor in 5 seconds once the circuit * 8oh)cwqpm ;qwas 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 thece kda-/*c+ltq* c5lv sav llkcqc*e -t*/+ ca5dme resistance, 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, the current thr-jzp 3:iese s1ough the 6.0 Ω resistor is 1.0 A. What is the power e:ei-zp 1 jss3supply 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*ihwhq-4 e 5 6ijbbpp; series to a battery. Suppose R1 carries a current of 2;pb 4bi-wh 5pihqj6* e.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 anl nn( *bu upa7w6p/e,ddR3 are connected in parallel to a battery. Su6/,n(w ebdn*upp la7 uppose 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 volts. Wh * v6 -oa-mpmxbg6x z75vfbo3hat is the maximum value of the cuomav6x *o-mbv h- xfbpg3 7z65rrent 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 at 120 ,px9g7hfuu3 lvolts9xl,uh fg3u7 p?

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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 throun*r4dq sshn;58 4 vzxkgh a 4 ohm resistor that is dissipating 36 wat58rhv44;x* n n kdssqzts 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 clothesr5zma7* xvzi9 is marked "120 volt, 600 watt.” In normal use, theravx57zz* i9 m 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 fo nc5: 8pnd*j owruda) 6luo33qr3c. yallowing resistances could NOT be produced by a circuit contai r na.ar6pn5y o q338d l:3j)w*ducuconing only 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 t6 xvud: :2 fr.x,hdjc resistors. Which of the following equivalent resistances CANNOT be produced using all thcv,tdr:hx: x.j 62fduree 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 resistorn+ay1v: j.q1. n,5v ylwji;ig li;onrs of different values can be connected together in different configurations. Ifn an j .;l oyj5;g1l:i.vqi,ri+v1ywn 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 resistor is connected to a battfugu7q4z bl4/t5s- qtn3gjx3 ery, a total power P is dissipated in the circuit. How much total power is di5gq34lns/qtj x 4 u37bg t-zfussipated 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 resistork 55j 9xz4vjk(u;x1zfyt 8 wkus, having resistance R1 and R2, are connected in parallel, th 58(x51;zjuzvyxwktuk fj9k4 e equivalent resistance of 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 resistance of 12Ω whe-.:qp9wjkfu) rn hlw vi8v-9ln operatingvu8p -w9n -iqrkfvl:.)9h lwj at 120 volts. What is the 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 flows through a 4 ohm resistor*v- kb f0ooqxw576upm7p .vplxn8g+o s a93 hl that is dissipating 36 watts om*5n p77fkpopgquo vh6lv+3x.0bxl 9o- s a w8f 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 vax m:,hzvuz z3c8n0) current when connected to 120 volts. If the price of electricitzznu,z0)mvca 8 vx:3hy 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+iasq)aa 9;3fq z/eyk.lke v( to keep a 100W lightbulb lit continuously for k v9q+(3fayl.)kae e azqi;/s1 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 A through a lightbulb results in a power of 24.a5 u)8) qrq,2bf o7ikzjpaml.0 W associated with the bulb. Which one of the following choices best represents th,)j 7a5.iraf q uzo)bl2pk8m qe 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 obo :p*6 rbm.,yfvt17npm3 bhlf six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circui b1vph6 b7 btm,yr:*3.nlp omft 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 form a simpl o x9iy3( 3rnqj71bvrbe circuit as shoov(3 i9yr37 nrb1jqbxwn 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 battercfxdae7 or5+w 9r bny;efa1*1 y is connected to four resistors to form a simple circuit as shown to the right. 7dn*5yoea+ rr;ewb 9fx1 ac1f
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 threv3rc5zrai c:1 e resistors are connected a rz:13carvc5 is 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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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 resistors are dh xr/05t4jbj connected as shown. With the switch open as shown in the diagram the ammeter reh 5d4rtj/bxj0 ads 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, ac o6ha+q .0ewg switch and three resistors are connected as shown. With the switch open as shown in +coa6 e0. whgqthe 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 shfa: t3k9zd e-sown to the right, what is the equivalent resistance? Assume that a:d e- 9zafskt3ll wires are 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 t7 a37cdu;vee )q dyw.+bjl. ryhe right with resistance ya. ey7qvr du+)7;3ewc.jd lbs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected-gq 2jhf d o,flwe.a6* in a combination series and parallel circuit to a vol*gfef -,hwjd.l6 2qoatage 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 resistor5o bcc u/mig+-s connected in a combination series and parallel circuit to a voltage+c-c 5ougm/ib 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, ay(5 s8q2lxbd.wn:j eht bz* 0bll of the bulbs are identical. Which bulb will bw(.bdzyq8 sbnjeb5t*: 0l 2h xe 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 switch and three resistors are conn lgo pzr/g4xa.t 3y3;bected as shown. With the switch open as show;433 / t.y abporlgxgzn 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 swiue:-i rmzagaa(a (ch+(r /k /itch and three resistors are connected as shown. With the switch open as shown ingmek iaa(ru /(za(+ir-/cah: 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 switch and three resistorsysd6 g, lpty.( g:zbaik 7a//j are connected as shown. With the switch open as shown in the diagram p:kgg jyb /,t7l/6adyszi.a( the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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