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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 show v;vpq(/n w,krn, an electric current 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 the interior krnq( vpv/w,; 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 smea0 )9j 1xk ddhvyxjz.,smt-30)ktin parallel, the_________each resisd 3)ksjmvxks )ja0zhx9m.ey- 1td0t ,tor 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 filam,35 abtltv7g cent wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb rema,v7t tgblc5 3ain 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 bee4m1ewxyn5i.jx0hm a7vjwip0 )16h zing replaced with LEDs. LED is the acron wxn) jaei5 4w 0h1hvp0eji.zmxm 176yym 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 graphite resistor has length L and pc m5zx nla:am3 ,y8uva8s3x*cross-sectional area A. It is to be placed into a circuit, but iazxusac a *8y853 n:m ,p3mvlxt 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 wire II are made of the same materj.+.wa f(nuouoz )e(y;rw3m u ial. Wire II has twice the diameter and twice the length of I. If I has resistance z; u oamwuy wfn(3r +j)o(.eu.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 materiae;c4hwo5ru 0 jl but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistr5;ch j4 owu0eance 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 resi:ian4 e2;4ydrb3mb7 x c mw)qka1-mhfstor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of thi 1fxk qea; -dmy:4h3 r7nw42)mbc abims 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 brighter lbnmgmo*(d4+ p ight bulb. He decides to modify the filament. How should the filament of +pmbg( m*4 ndoa 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 themmn9dv b nlj8e+cq,e )hbizro .+..c6 same material. The length and radius , +l.d m vr.6)i9m.ej8bncno+cqhze bof each 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, eachbqiw:ubl hw: *b0r--w 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 tr*w: 0:uwq-b bhw- iblo 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 in the accow.(6ik f emt)t1nbh)n mpanying circuit diagram has internal resistance 10.0 kW and the1)n)th ifkt6n m.bwe( 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 ovgyob(2 1 (ajright. The three bulbs 1, 2, and 3 - represeyoavb 1og2((j 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 at the right. If th /s ):ovzu6dstk6,.awxb2dd re current in all three resistors is equal, which of the following statements must be truxkub ,).vstd/ :d o z2s6w6rdae?


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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, jg wo:6tnf.r represents a simple electric circuit composed of 5 identical lightf, . wtnr:oj6g 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 c5 3sz z*ih w,ck3uo-proncerning the simple circuit shown where resistors R1, R2 and R3 are have -,wrp*i 5cso3z3uh zk 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 in series to a battery. B: reqd4 h4o2lfnc./ lsulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY.dol4rslfenc:h 4 /q2 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 b (/ijs7a1 f; trfsr :zya+do/ through the identified resistor in 5 seconds once the circuit was closed? a7s o; 1af frsy+r(i:j//tdbz


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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 reebpw m .+6+ue6s::xdya o rm5ysistors in the following simple circuit have the same resistance, which would dissipate the mpu66we rs .d5+:y :mea+bxoygreatest 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 d ty sltpz9)76pk zjfo 9s9/g4uiagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V s)z y6fp949ps 9gjozlk/7tt u?


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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 battv6v 0rn,jivl(hlh,v 1ery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power.60hv,vvj1ri vl ,(hl n 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 a,x*tqss q8w-ljw-r4v-8mey p ndR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the cu*yqwes4qj xpr 8w t-v8ms-,l -rrent 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.a 1ts 5q-.sfvi What is the maximum value of the current under thesf-i1va5ts. sqe 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 resiszxigcdeb3h2u0 o;l+* 0w jlzg)6y/w ytance of a 60 watt lightbulb designed to operate at 120 vol b0c*d/ y;g63e zjllox2ywgiw z+hu)0ts?

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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 ise6l/a2gbl u)12em r;s3e 5dirv xhxg. dissipating 36 watts of p2ed.sa6r/; g x g)l vmh3e5ubi1lr2exower?

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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 use5 zjjpbmr :-g;fo1p3 md to press clothes is marked "120 volt, 600 watt.” In norm; :- jzjg1pm53rb ofpmal 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 could NOT be produced by a circuit u 5mtn.v(hzu3containing only tuu(z vh 5.nm3three 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. Which of the following eqqd -)+cgzlx1 he cv02cuivalent resistances CANNOT be produce1c g cz0v2)ql-ex+c hdd 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 be connected toges9 vm0tzt nok- 34h7rsther in different configurations. If all three resistoso7-3m n 4vshrk t90ztrs 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 resisto r y8ps/.-m8qtxhnou .r is connected to 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 the o8hx.8.s- qp rmy un/tbattery 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, havingmlf sq)k 1jz4ur-a,4h resistance R1 and R2, are connected in paralleq zk4l)1rha ,s4mujf -l, the 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 12 y h01dvtz+ w:h)tlke*Ω when operating at 120 volts. What is the minimum amount of tiw zh tld1+:*hy)0ve ktme 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 that is dissipatings-ao vy*t+r+em8of4v 36 watts of 8mtv+ a+e- oofy*4rsv 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 con+)w,an5ms2 q:wo(j g 4sjshajnected to 120 volts. If the price of electricih ( )nawajwssm2g45:sjqj +o,ty 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 lightbulbcgb ne4vky.;z wh2 n9 .gi,;jm lit continuously fh2g gj.ce; 9ki.m4z vynb ;wn,or 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 A through a lightbulb results)lem jw6 ,gh*8cgs,p i in a power of 24.0 Whiws*)cgp jm eg8, ,6l associated 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 of six owns a computer rated at 50fn 6 7pdf-pif+0 watts in a 120 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-dff pn+6fpi7 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 resiwx 5e5()ybdv hstors to form a simple circuit as shown to the right. xvdy5 wh e5b()
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 resistors to formy2 jt qgyz)uhc; 6jf9uuz;3i+ a simple circuit as shown to the cuizju)3y;z+j ut;yqh f29 g6right.
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 batt31txn fr5g;4hvxj:g0 3 zhhdtery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. jvt:4 d 5x;xhr3fh0t13 gnghz
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 ;du 8w7w(o1eved)3t rm3tfg9/ rogeiconnect(8rv;doer3 dgtt mg73feo 1ui/w) 9weed as shown. With 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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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,up3xo )( d/vct a switch and three resistors are connected as shown. With the switch open as shown in the diagram theo dv()tu c3xp/ 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 rkj/ u bqv:-hzeil4 l.:esistance? Assume thvu: jhq 4zilbe:-.lk/at all 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 the right with res5:blmu jzqp( : -lplp2istances -pu5(jpmz: p: lbl2lq $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 showyjos s*9vgm,+s five identical resistors connected in a combination series and parallel ci+,vm9o *ssyj grcuit 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 j:k(wrq-r on5 shows five identical resistors connected in a combination series and parallel circuit to a:jkrnw o5r-q( 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 ovonq + 5 5e+bqor5e,fof the bulbs are identical. Which bulb will be the brightest? o5,55e +evbo+nrf qqo


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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 batt48 *hvt8.y jz/(vl3opk qgdpjery, an ideal ammeter, a switch and three resistors are connected as shown. With the kv lj*4(pvoj.8pt d/zhyg3q8 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 resistorc(w(7es9 ykwn 3xu4h gs are connected as shown. With the switch open as shown in ( x97 wgsk4ew(u3 nchythe 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,a, kje(9vq/, mh,gtfvk2v+ l b an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the(hvgm/q 29,ve, av,tkl+ fk jb ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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