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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 exhbx5qd ,9n,2i2nd f: cd9cgajists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electronbq 9n2cxgdnjd2ifa c:,d,5 9h 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, the_________eazss.z3t(mm c3 ch resistoztc3s.(zsmm 3r 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 filament wire of a lightbulb caa 3x2b*8brp-xpr86 q5 xeql 2mhyzxo (uses the filament to bq*l yb63xx82 5o8 ppxxma-qbzhr( r2 eecome 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 replaced with LEDs. LED a-q 5vnmk*stor;y0.l is the acronym for whiokqvrt0* ;a5 ym.-n slch 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 gr)(nb(mg5k1 wl4tbg2 e1zo:ypvy8,niesgl v3aphite 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 thzi:2m yln y 1nv (lpb b8kw(5o)vs4e gtg3,1geat 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 material. Wire II y4ydo b(-d8k7t4,le k 1sg/oqgyf(cmhas twice the diameter and twice the length of I. If I has resistance R,so1od (tdk eyyg7y-k ,c4g bmql(48 /f 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/fn. hzulps4c(. *y-ca:jfq sot7t+g diameter and half the length of wire X. If wire X has a resino-q p u+ 7gssa.cf(t *fj /h.lyz:tc4stance 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 chuj, 1 8a;lh9f(iv n7/felgilength L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happen(c/,eff n hval19i hj;8iul7gs 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 Edison23n:s3uw yfj/jm9x*xdb7p mqh2b 1zv wants to make a brighter light bulb. He decides to modify the filament. How should thzm 9px2jbv djy3 3hq1bunx 7f:2m*w/se 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 materto6 ogq/f,f4c ial. The length and radius 6goof,cft 4 q/of 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, ea.pqm aopwv4g)6h s;t3 dej/l 4ic .ag3ch 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 to a third resistor. This set of three resistors is connected in series to a fourth resistqhvew is3a.44 6/moj .3pc ; datplg)gor.” 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 diagrac(vg,9+hcato3. t a jlm has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading ica.h3j,lgt v9(coa+t s 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. Thb 0 f(adl+rhg*e three bulbs 1, 2, and 3 - represented as resistors inh (gb0df +alr* 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. If5k )zh3tkqoee8y 6w: v the current in all th:vo)k38hee wqy6 kt5zree resistors is 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 right represents a simplpj ,3a oiy9jk+,a,ynvg l2jz; e electric circuit composed of 5 identical light bulbs and 2pjaa, o zjn gv;,ky29,3y+ijl 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 concernin)tyr7 h2 k9*-ohqjimd g the simple circuit shown where resistors R1, R2 and R3 are have e *-hty qroik7j)2d9m hqual 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 t2zw q-5gqpc+ ) qna3cno a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected inqp5wngc 3nqa2qz+-c) 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 wir26r)1j 7.zl wr )wu,zpv ;;vhfnjou vll pass through the identified resistor in 5 seconds once the circuit was closed? vrvvujrnh ;2lw., r) o1pfjwz uz;6) 7


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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 simd.tjvd -zkcg6* 5rmlfys 7q;;ple circuit have the same resistancegmt;y d.d;cj-k57 zvs6lq*f 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 accompanying circuit diagram, the current through the 6.0 Ω bcnv7)u(*.gi rfz7bl resi7l* rnbg vz)fui bc.(7stor is 1.0 A. What 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, R2, and R3 are connected:goa0i:k9aavg 1 dlgxz6v5o+ 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+vzo 0ag x95:1divg:a6lok ag 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 resistos / ;bb dvbf+k-jrf2svwv.q4 .7ufzz,rs R1, R2 andR3 are connected in parallel to a battery. Suppozsz.u ,j;br qb4-.v2 f+ fvwksbfd7/vse 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. Whf; (cg4p; vs de)hj0nsat is the maximum value of the current under these cone nh4 vc0(; pjsg)sfd;ditions?

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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 desigr/9h k-u;mfle+,lwbo iu3l s 8ned to operate at 120 vol file/s-3w l8ol urhbk+ um,;9ts?

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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 o4cbt+0vf5 cl ehm resistor that is dissipating 36 watts of poce5f+c b0l v4twer?

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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 mejahi )nq;mui3fgdaq;/iz 1+p/3*cvolt, 600 watt.” In normal use, the current in it isqmd3i +aczh/ 3ufjpneiq/i;1m a;)* g

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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 com 1u e4mekv*m+n f+n;pntaining only three identical 6Ωe+m pkm vn41em*+ufn; 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 followingoprwcpr7rmym;i46qdego9y9 e x, v z498q: 0r equivalent resistances r ye;99oz o6pyew7x 9pqi,rmrg vmq4dc480:r 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 be connectebwe92;zq).y/dpoc kjd together in different configurations. If all three resistors are used in a circuit, how jzyq) 9e 2 /op;wkcd.bmany 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 ggx3 +b2 p5zp(ca+p1j,lwbrlconnected 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 rjpc2a, 5xb +p31glz lwb+(gp 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 resistor+ioq+2-tyj )ziw3c d js, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resist-qzcwj2 ty idji+)o3+ances 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 18oyw:,euj 8;f ,ddlet2Ω when operating at 120 volts. What is the minimum amount of time that it would take to warj:t8; efdlu 8,dy,ow em 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 36 wapc+o-hr6 i3z btts oc+-rhp3o6 ib zf 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 0pautwa0 cz9kp:b+ y44 sq2(i gqb4qzconnected to 120 volts. If the price of electricit9+b424z cb0ay qi z 0gp:ua( wsktq4qpy 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 sdz6txx(b9c3 *j e ej:a 100W lightbulb lit continuously for 1 year at a rate of jxbt*3x9c(e: zsejd6 $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 4.00f8os,b r g (avhz3+krmewd8 x5vos5*/4dc bj1 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choj3dd8xvsv e +a r*km( /b4g,zo5osb1cwfr5h 8ices 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 500 watts7o ,j8oxy qdj )hu+-nt 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 compute+t,xjudy oh 7 )-o8jnqrs 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 fu1q,z7ojt3 vhorm a simple circuit as shown to the 7hj,z 3vt1 quoright.
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 arb cvh8 z-/yt8t4ir8 resistors to form a simple circuit as shown to-ia8hz t/vtbr8 rcy8 4 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 resistors are co tmxi sxs7yabbt7f u10g/7+/qnngx7sqt+a0 ub f// 7syx17b itmected as 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 ammv2j 5+f pum (7ahzk(wpeter, a switch and three resistors are connected as shown. With the switch open as shown in the pp(ha57k mv+u (wzjf2diagram 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 m u-3w e;kdlon7 -cuo8 xv 7vk3c)kx:aammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amper;73l- dv) ew vcn 8o-xk:ouau3kx mck7es.
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 sh mal 5xf3+im:h nw+y2xown to the right, what is the equivalent resistance? Assume that all wires are ide5f3 l x+ih2wax+myn :mal, 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 res,wf2 su,p6ci ristance of the circuit shown to the right with resistance 6u,r iwfc,sp2s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 conn nyw e/6tw0o,rao+r.d c g(4czected in a combinatioo46n./r etcd0 gwaroy( ,zcw+n series 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 iny.rl .sh+gp p( a combination series and paralp(+ h .gyslrp.lel 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, 2 8m(r+pf1*olytxd; :zj(bzj4cth n v all of the bulbs are identical. Which bulb wntj* rxy: ;vo lzt4hd1+f 2zpcj(m (8bill be 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 ammet 1(6w txlgfcw:er, a switch and three resistors are connected as shown. With the c6 1f:tw gwlx(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, a,g6t bh.i9*;apfhs 1fmkrm5z :g4 v qyn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shh .r56 q,skbz g41hi*f:apmvf9gt ;ym own 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 switch and th7/i.kg s /z:jx)c bx(nunfi)jree resistors are connected as shown. With the switch open as xjsi7 u/ )) (fxbngik:.j/zcnshown 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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