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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 metm/rfpk -kw7u1r6, lqeal 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/rk-k ,f melw 61qpr7u 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_________4kg6orjv5 5ux.j gn -peach resistor i .k jgvnoprg56u-4x5js 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 filamem: 8ghm;lnj b:rdhk 6.+iiaczh 02 1dfnt wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. T mi0 ra+lhid bn8 :g2f ;m:hchd1kz6j.his 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 repllfgl x+1 /5. 5zw ikcnzf(ip5paced with LEDs. LED is the acronym for which one of the following choicc5wz/ n.1p+pg5ix5 kifzf(l les?

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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 w 779p cuqgc9ez/fkcs2iqy/ 2has 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 resic sey7uzc/2cip/ 7kwgq2 f9 9qstivity 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. Wa2wf)* jars1 pire II has twice the diameter and twice the length of I. If I* )f1a rpsjaw2 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 bjwa8,4 ks5 xbm3t xfavwb*d 81ut 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 resistsw4kamx,f8bja51*b3t 8dwxvance 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. Thkz1z+pj jp9 i*is piece of material is then drawn so that it is a cylinder with new length 2L. Wha19*kpj +zji pzt happens 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 Edison wpn6 -pmwad/4.bjx8pm ga,d)v ants to make a brighter light bulb. He decides to mo4p8)a d ,-xpgnm/pa.6jdw bvm 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 resistm mmy3 +7 kdq,e/wxu* .j7pmamors are made of the same material. The length and radius of each resistor imya/m ,m+pemdj k3qmuw x77*.s:
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 resistanc1cfru1oki+h wrko*:-:m aykym51 g.de 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 resistor.” What is the equivalent resistancem5uc.*mi ad kwg1-+ 1yfkro h:ro: k1y 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 ino)*q.bu yc-z8p qzpq+7q k5dz the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistan zpyo zqz)pbc q87-uq.5* kq+dce 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 1, 2,kzkpz: 1e*rctdu b1f+n2t(x ( and 3 - represented as resid( tcktpnu1z:rk+b*x 1zf e(2stors 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/tzljpja i(c c1.8 z2qp 463nrr tzz1b circuit at the right. If the current in all three resistors is equal, which of thebz1rarl/z8 3j.zzpptj4c (cq 2ni 1t6 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 electric circuit composed of 5eoq+nb0 qyo-y;my;.h /z 2 jye identical light bulbs and 2 flashlight cells.j.n; h+ -yo2/me0 bqzo qyey;y 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;xshs,j- -i*cj tey 1q the simple circuit shown where resistors R1, R2 and R3 are have equal q i1,s-j c *jyhesxt-;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 cod brkh6.a czkd.6/(e ngy51mw nnected 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 represezn acwd.6dbe.m /65rgkky h(1 nts 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 cm; 4nkq e3;hx4tw6s auoulombs will pass through the identified resistor in 5 seconds once hwq4 4;6t x nsmkae3;u 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 resistof-wg3v ,y5 m+phw*lvors in the following simple circuit have the same resistance, which would dissipate the greatest pow-ym,o 5*gwvvfh 3 w+lper?


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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, thi2tjvr0 3u as6n(-qsc e current through the 6.0 Ω resistor is 1.0qjia-( 3nt0 sru2cv6s 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 in series 8uj/tiuofh6)k63ke6wbm um3to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 36kh/)mt6b8if u ou6w3umj ekdissipates 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 ar 2 b3llj:g0mohe connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current llh:3 bgmj2 0oin 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 is tbx+f .opxt0n vcu(88qhe maximum value of the current under th+n0ub8vx( op8. x qtfcese 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 u; mkqhylj+a3 l+m;v :l1ij v*60 watt lightbulb designed to operate at 120 voljm a;jl+* ; yhvk lvlui1q:m3+ts?

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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 dissipaxi4gs jr14t 4rmmgw+k -jp3u2ting 36 watts of powe4i g1+4mu 2gkr -3jswxjt4mrpr?

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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 voltdj23bk mwr5 (y, 600 watt.” In normal use, thejy2 d3k5 mb(wr 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 bypfx.l ))ikyp 3 a circuit con yf.ik) x)lpp3taining 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 resistors. Which of the following ed1hsf 18b3-0wq qm1+xh r.mi )udxtchquivalent resistances CANNfbdhw h uqm1t)s1.mq1 8hxxd0rc 3-+iOT 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 connected together in7yiqg0i/vz4wo uk/y5;k l7+ o qqdzn, different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be pw i,k;yu zl0zk d/q7/ onv5i4yo7qq +groduced?

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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 conneh;i/a js.tyw 8yf27ktnsj50x cted 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 8 f52k;/w t sat7sxjjyyn0.ihbattery? 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 resistance R1 and R2, are connected ink-,(xcnkn u2hj 9ca 8v parallel, the equivalent resistance of the combination isnknh9,ajvcux8 k2 (-c 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 whenf xkk5kyu5 58y operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water fu 5x k8yyf55kkrom $15^{\circ}C$ 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 tx ;d- r7p 1m5,dyefz.t i+xhprhrough a 4 ohm resistor that is dissipating 36 watts of po+pzp -df5tx;1rxmy .r, deh 7iwer?

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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 ampevx1rqhehqj 3(3vjl . 8 s7ka3vres of current when connected to 120 volts.(xe3lkv a7v8j3.qjh svrqh13 If the price 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 keep a 100W lis p0z w9ai6z*fdb kq ):.j1lygghtbulb lit continuously for 1 year at a rate op f6kb0*ls z) a:idq1g 9.ywjzf $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 curorhz- b7lnsla 2u8v50 rent of 4.00 A through a lightbulb results in a power of 24.0 W associated with theusoa72z -hll 0rv5b8n 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 atu)kkc)c79ekoi+:oc pd (f x;( 0yzev computer rated at 500 watts in a 120 V circuit. If uc()eop)v(+c ;kz : e d kkco07tix9fyall 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 fo+ fahf7e6g k; do40fteh:d7vsur resistors to form a simple circuit oaft:dfe;d07hh+6k gev74 sfas 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 four resist0 cue s;ikqr-jmy7lt7h8)( riors to form a simple circuit as shown tock-lts7 m(r0qiy )u8jir 7h;e 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 rjdnh-lg 6 r.,vesistors are connected as shown. With the switch open as shown in the diagn.,r6j- dlvgh ram 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 ar;ra,l;in 1 idxp/8ptpi;mvq (e connected as shown. With the switch openxp;qt8;ip p,li(m/dn iav r;1 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, a switch and three ro (,n: xjq1lozesistors are connected as shown. With the switch opzj(x o1:,n oqlen 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 , q+b s0uxw+vd/d9zsc shown to the right, what is the equivalent resistance? Assume that all wires are 0sz+xu c vd/dq9, wsb+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 resista5ddkf9 jw5ynu x rl7*8 4wxvk.nce of the circuit shown to the right with resistan wf45* jkvrnlyd85xwx7 udk9 .ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belo93c.n (enhil3c wda8yf0y lk6w shows five identical resistors connected in a combination series and parallel circuit to a833.ln ycna cywei9f6k(ldh 0 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 y2srkrem 3kjmb1,9af2 jxx+8 identical resistors connected in a combination series and parallesayjx,m 9rb+2j e 2mrfk831kxl 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 of m5/86b a 3f *d26gq liuadoutv the bulbs are identical. Which bulb wi6dug6 o82va qimuab dl/5tf 3*ll 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 ammeter, a ko0g zjz6nb7 6switch and three resistors are connect7z zgbjko0 6n6ed 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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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 are plw .t4vj y62aoc /gv7dgxf)*connected as shown. With the switch l y) xog/t6pgvv*dj fc72wa.4open 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an idn:s 29cqraf6e;ah .nqeal ammeter, a switch and three resistors are connected as shown. With the switch open as shownac9f:.h6n2 qaer;qsn 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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