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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 curren ossc(fg5/q1v t exists in the metal resistor connecte1 (gsvfoqc/ s5d 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 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 paralleze ):1tpemd mb vrkpy(1c, o4. fd;.sml, the_________each resistory1d b:dck e)zpt;.sm e1p.4mvrf,o (m 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 causes the filam6hyswgjgg .+v -5 2 gzrca:p:oent to become white hot, while the larger wires connected to the lightbulb remain much cooler. This o5cwg 6ggsja-::r.y+2 vghzphappens 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 lighbpa 27,v/zu;qsnh 3.qmfw 4ikts are being replaced with LEDs. LED is the acronym for which one of th2hs;fm. 3i n ,ubqzpwvq/7a k4e 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 huy ,,o:sou 8opas length L and cross-sectional area A. It is to be placed int yu,u8so o,p:oo 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 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 th r;nolgxy:tu1+ e 4u0e hkz12je same material. Wire II has twice the diameter and twiek:2 tln 1y0hj1+4uog;r ezx uce the length of I. 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 has twice the diameter and half lbo9v5mihh8-n 6mx;nthe length of wire X. If wire X has a resistance of R then wire Y would have a resistancel xbn9i;vn hm-m 65o8h 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 fh,7gvim 5 l krba.6+qand radius r. This piece of material is then drawn so that it is a cylinderba+f75 lvhq g6ik.r,m with new length 2L. What 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 war0,wcun6 hm 5hnts 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 the lightbul,6w5mu hn h0rcb 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 leng3 ;)1bdmfqp0qpbjf5r th and rpp 5b3; r)fmb0 jdfq1qadius 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, each of resistance R, are connected to a battery mb,88x :iqxc+r:z jcl gc63 qrin the following way: “Two resistors are connected in series. This com+rlbc cxq:6z 8j:ir qcg38 ,mxbination 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 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 diagramt50umk(wxkj -u6. 0v t*ma fxycm76al has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter readkc*06mmu yjua(0mx t-7 ax6l5tvkw f. ing 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 trt r sn ;l uv.nm7t9s31g4p/phhree bulbs 1, 2, and 3 - represented as resisr137m ltpt 4rs p.n/nu;9 gvshtors 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 the current in r :s4lrjnsna5nb j6(9all three resistors is equj4n(s:an b 5 rnj9rs6lal, 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 simple electric circuit compose 7hc:h(nqbk i ):tmtt/d of 5 identical li)bkih:(m c t/7qtht:n ght 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 ( guyx75nyf( u2f0 luoyi)3zhfollowing statements is NOT true concerning the simple circuit shown where reyy)7yofnuf3x l 0uu5g 2((iz hsistors R1, R2 and R3 are have 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 a)k6s :cl7nil7tjztu31 rhgv ef47bc* wm)s 2u ndY are connected 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 urb:j47se2tislf)*c3 )7hwmg7t zvu1n6lck 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 oghf/l*bd pn z+x;6/ s vjv:(g pass through the identified resistor in 5 sefv;*psgdg+:vh6 x( ojl/ z/nbconds once 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 simple circuk :ygh).us +4ah rnpu4it have the same resistance, which would dissipate the greatest ph4anr+4syhg. p u ):kuower?


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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 throud4:,px.1 snpyjvnh: egh the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V :xd4,sj 1:hpnv .ypne?


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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, R3mav yvf j-.uyz4wrc9+ff2r ;2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dfzr 4-r;+.3wc 2m ayuvyfjf9 vissipates 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 resistor/:1 c5- je-bxqy oag9wzlor0 ns R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, andb:-a e-5 jngx q19 w0cyr/zool 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. msq,7k0csppg ;z * e/a What is the maximum value of the current under these ce/;ks c, g* ma0pzp7qsonditions?

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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 as,3n,8una6dtpjxvy hi2i i7qq,m 21 ct 120 vo pnqcq,t dyn2sj 1 ahvmu,x7i86i,3i2lts?

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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 f2q5oe mt*+nqr lows through a 4 ohm resistor that is dissipating 36 watts of pow q qet5o+2mr*ner?

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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 "120qwm xwu4;d1 ,crfxf8)) grj a/mc/p0g volt, 600 watt.” In norwxc /mg rw/f8qx1)mac rdfujg)4p0;,mal 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 cir+ 80le7 fdqecvq.)namcuit containing only three identical 6Ω rdl.cef 8v7qqmen0+) a esistors?

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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.sybfl4ka41dv9x6 z . c0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resisto. f6kac4ly9 1dz bxvs4rs?

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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 diffrmf ty ,+eap/n9ez6)qerent values can be connected together in different configurations. Izrpa/nf9+) emqt6,y e f 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 ahx;wdr gq*.r 13vd)mbattery, a total power P is dissipated in the circuit. How much total power is dissipated in 1rd.)*wqam3 xgdvh;r 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 resistors, having resistance R1 and R2, are connected 1st*yggzzg2gc8ty0d )p8r t0 in parallel, the equivalent resistance of the combination is 5Ω . Which of *y tdtczgs20ggyz)p8 8 g 0r1tthe 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 when operal *b5ioxz(2b7a3baovuz/ oq4q o1b5 iting at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of wab 4al5biaib( bxu/v12*o q3o oqz o57zter 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 c 99 )0f.ftexjxnaffd1 b gh)+flows through a 4 ohm resistor that is dissipating 36 watts ngx9h d+jf f90 afexbfc)1 .t)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 ampereit/ q0kko38g7if/ 0 i pe tvx+ae(o+wqs of current when connected to 120 volts. If the price of elect x/ 7f8(i+q+gk0/i vpi 3wak0tqe oteoricity 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 x8aleo-a8yf )y+r+h k it cost to keep a 100W lightbulb lit continuouyl 8+xak-)ehyr8+af osly 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 A through a lightbulb results in a powprv.b/) du jz,er of 24.0 W associated with the bulb. Which one of the following choices best reprv .j )bz,rudp/esents 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 ofnul3, twq3os1 y r2ib0 six owns a computer rated at 500 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 at the q rty2uls 0wb3i1n,3osametime?

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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 batte43j)l hhepv s.v ;(ajcry is connected to four resistors to form a simple circuit as shownash4l. 3; p)j(jvchev 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 resistors to form vs 3w dl;z3gjn1bh g5 -nm1u:ua simple circuit as 5;g1l-33:dujb nvzsm ugh 1nwshown to 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 i bfc0s33ziu7(ku6-owjv bl o 4deal ammeter, a switch and three resistors are connected as shown. Wijf6sczv3l0wubik73ob 4u - ( oth 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 xi mb5a0wwks6s) xb((e;.hbu are connected as shown. With the switch open as shown in the diagram th; m( 0bwxbs5uhbai6) k(s.xwee 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 ruf 0w) :k 4i56ptknv )v fzmuu6x/3yshesistors are connected as shown. With the switch open as shown in the diagrufz)m 5n)vk/0u6tuyxw k364 f v:h spiam 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 equx0kjl )gn0npad 1,g5 0bg,yaaivalent resistance? Assume10aapa)g 5nkb0 ,ljgxynd, 0g that 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 resirw4 c i/u bb zk:h5dn9;x, i7stzgry3+stance of the circuit shown to the right with resistanz /ydh zt4r,+7xi9scu5 b g3:nbkwr ;ices $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 be;a-*2sv nzklm ido ;d8ewhg7(low shows five identical resistors connected in a combination series and para27gv8h;s la( -z *wn;oeikdm dllel 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 n5lnmf7/fss pd ugn,* 83k9xoshows five identical resistors connected in a combination series and parallel circuit to5m9 dkf sn8n3gxu,o/7*pf s ln 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 diacnlga 8cct ;o5jrqr6+ (ijm a :q,f(j)gram, all of the bulbs are identical. Which bulb will cl (:r)g6,moj+cr85af(jqi j a; cq ntbe 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 he /5agf)u5w4b9ttoa are connected as shown. With the switch open ag/f54eboh 59tatw ) aus 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 .z(d c1f x;tp-sle5rq and three resistors are connected as sho rl(; p-tqz.cxf5e d1swn. 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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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 nt. a4iez 2uwij-c5a 8switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a4c5nw8.- i2zi jaetaumperes.
When the switch is closed, what would be the current in the circuit?


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