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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 9ghla im tfyf4ymb) 5+h364zn, 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 thef64h9magy5z3bnyhl t4 i f +m) 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_________e /md5gydwi7 d;ach resistor is they;d g md7idw5/ 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 ooorr w9wa9o*; f a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. 9o r w;*rw9aooThis 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 croe)ye6r s9ew- 6 m uk;k+*gjLEDs. LED is the acronym for which one of the following o +;weej6 9mcye6 k *g)ksr-urchoices?

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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 resistokxv9.: e.pkeij;qr o44;oj yjr has length L and cross-sectional area A. It is to be jjp4ijvy9o r..k xo ;ekqe4:;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 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 mj1g/f b434lmvkxv: 3e dpwg*ze -gj2material. Wire II has twice the diameter and twice the length of I. If I has r 2m*-vlej dgv 3emb gwzgfp41/j:43xkesistance 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 materiavsb ;hdss (q;b/q1kka/ oc27j l but has twice the diameter and half the length of wire X. If s;k 1kh7;ao /2sqvscd/qb(b j wire X has 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 lengthode23 hz)h fsy5x)58 ycz6gvc 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 this material because of thi2 g5 s)cvc3fhyh6zd5z8y )oexs 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 Edis jisp gh25:xq8af.jxv:6 +okn on wants 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 ligp:.x2 8ak f:6ig +5sqnxjjo vhhtbulb 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 ss+vz(lirtt/ clt - 7p3ame material. The length and radius of eachzltp i +/(-7vtclsrt 3 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 in ri8 7u1zg p+m)ry am8qthe 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 resistance of this arrangement of four resisto8)gi8m1r7y qp+z am urrs?

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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 diagram has in0 k04 m7 qxdyoy5yvfp/ternal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter readingyvdp0xok 5/q4m f7yy 0 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, alwlg a ;0s5t-hnd 3 - represen al-5l;sh0g twted 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 electrica i7yzk wxdmqcq,d,5ps4(2. r fl circuit at the right. If the current in all three resistors is equal, which of the following statements must be qsdp7 fz( xq.w45d,riky,c2m 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 .5dnh qr5 whx 5z5fos.acr 6g5circuit composed of 5 identical light bulbs and 2 flashlight ceh ohcrqa5gsw5.z6n. f5 d5 xr5lls. 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 c42ina si;zd1t9toy d+oncerning the simple circuit shown where resistors R1, R2 and R3 are have equait4di2z dta+ny ;os91 l 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. Bulb X i g1fiszvf+/ vs2g* e(us 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 bef u/s*s g+1i(f vzgev2st 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 through the itbz;/ mawl,c 3dentified resistor in 5 seconds once the circuit was a z3,lwt/mb;cclosed?


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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 follow:u 4hb:lxijy0 ing simple circuit have the same resistance, which would dissipab4lux yhj0::i te 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 th h4xtv rqi2jg2 ;)h6nurough the 6.0 Ω resistor is 1.g6 rt4vu;h2j x)2i hqn0 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, anr7r 7a:za1lk bd R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 har:alr7 azb7 1ks 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 reufcx5tu ;f/g* +jov-wsistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in uw*u+otf gj -f/5cv; xR3?

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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/yr dn- ih.an3 120 volts. What is the maximum value of t ./n-yhr3dainhe current 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/wtz2x gd6v+z 60 watt lightbulb designed to operate at 120 voltd z+vg6/ t2zwxs?

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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 disrjpzqh1- y6z i5l-)w7c qmjz; f82gfosipating 36 watts ofjfp)l- 7-i6fq g8mqch zz521rjz;y ow 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 clothes is marked "120 volt, 600y-d: f901t 0ioe7nxfye8q ,heryuup : watt.” In normal use, the curr1dyru8eq0h7nipf9u eyy ,o:f :x-e 0tent 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 re zzeuut+ c:(7fsistances could NOT be produced by a circuit containing only three identical 6Ω re(uc zu 7f:e+ztsistors?

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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 k0ydy rnn:l a.);ce4a1.0 Ω resistors. Which of the following equivalent recn:k;a 0 nyl4r)de. yasistances 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 5n(f4+ 6g( frvwuzdtp of different values can be connected together in different configurations. If all three resistors are used in a circuit,dft+p (u g65w( r4zfvn 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 battery, a tot(s w p.dwt7v 2.2n ug6ci3offqal 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 resistadfwu (326nvwqt.ogs.f i2cp 7 nce 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 in paralq wrqazv fm;1cg.s3lv77y w7 0lel, the equivalent resistance of the combination is 5Ω . Whiq3zw07 y1;7fq 7mwcv l. gsarvch 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 itkwlu4 (skv0n f8+i gcup 7v1,q has a resistance of 12Ω when operating at 120 volts. What is the minimuuqw k 4c(uiv+pl f,s1 8gn0v7km 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 that l2c8 yu p/+ wc)si ghk:2ian9xis dissipating 36 watt+ )hsil y2uxc9c2a8pk:nwg/ is 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 amperes of cer(e20vj -j uw0l gv s.h)f0dqurrent when connected to 120 volts) jefd00vrhe0jlu q( 2-vs g.w. 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,n fvb8 n;,qnm 100W lightbulb lit continuously for 1;qb 8mnn fn,,v 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 r*j3nuje, f1t fesults in a power of 24.0 W associated with the bulb. Which oun ,ej*fj3f1 tne 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 computerv:+ nsi5xs6b; ,ahcne 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 ci nxaes6nhbv;:+,s5 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 foxuee q u- ,jggl)jmx+3ae3g: b*c.x 2ui/jx-prm a simple circuit as sho . jjugi jep*c--x),/:3+2aggqxel uxxb3emu wn 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 connectafamm3ym wk8.,y g)b, ed to four resistors to form a simple circuit afkawm,3y,b.8)yagmm s shown 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 idn tiql7vqe +f0lim4,6 eal ammeter, a switch and three resistors are connected as sht 6 ,e+ilq4nv07mil qfown. 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. makr-bvd -l5:-8 -6a-qpivd l5o5hsfycdmz resistors are connected as shown. With the switch open as sh55m5bqcldz-6 f-a--k-smpv do v8 h y.: dlairown 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 a ccjs2g np2z 31/2qmtgnd three resistors are connected as shown. With the switch open as shown in t2zt smcc/3njp22q g1ghe 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 shown to the right, z2u6mkww hzrd+-r0 e/what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identicaluzwd kze 6r- 0/+w2mhr 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 , c7w;kjn vzr4with resi4c, ;jvk z7nrwstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fizj nff x8m +9v0mzq:zwp y*p(0ve identical resistors connected in a combination series and parallel circuit to a vz (jfm9m+0nx0 :*fzpq 8yzpw 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 resistorsx0.kugzncagrm:x , v2y h0*- i connected in a combination s.v ,zycxnhku m0g a*0i r-2xg:eries and parallel 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 the bulbs are ident hmzl:nei,,5io u 7b14t-o af d/xl,p*q sdxq1ical. Which bulb dp/x o5n4iq-,z l1u tblhqseof *7axm:,d i1,will 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 switch and thre5mlnv ,pbb72t e resistors are connected as shown. With the switch open as shown in the diagram the ammeter t5n7pb bmvl 2,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 am fb3ykec+pao2f pg3(64oqd)hmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere+f3o) ch g26pya3feq(obkd p 4s.
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 ammeteu2rxtjz- z ) 6u1fqf+/ya4i ylr, a switch and three resistors are connected as shown. With the switch open as shown in the diagram t 1fuyfx+/t2r)za6u y-lzji q4he ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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