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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 the7 i w2af:cwbft -a8ot3 metal resistor connected to the battery. Which one of the t 7b28c3a:-iwfwtofa 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 parallel, the_________eao4cwq ld.3to. ;)s,dlap n6h gch resistoo dop 6nl).wts ;q ga4l.dch3,r 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 cau uf -pih9ck28bz 0;zgrses the filament to become white hot, while ubzchi0rk2; fg-pz98 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 househol tb5v 7n9z 2szreau/n.d lights are being replaced with LEDs. LED is the acronym for which onev57eazts .nbzr/n29 u 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 anx y o8bczl4 e8/f1-xpod cross-sectional area A. It is to be placed into a circuit, b1 /4oe-ypblo xfx88z cut 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 material. Wire II has twice tjdndbb0+- z f)he diameter and twice the length of I. If I has resistance db)fzjd0+b n -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 sam7eth-hr z3waa pn5 l 4jik+0+ue material but has twice the diameter and half the length of wire X. If wire X has a resistance of R thetuez a 4hp j5+kalin3r-7 w+0hn 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 length L and radius r. This piece of maty*3c-k c;gj dp wzyvdt7+w ,)zerial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this matkp3y z+*cg,w ;zdcw)v-7 tjdyerial 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 light bulbknkb4xq1.mz9 c 2g,e3j(n cif 60piik. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lig kkn0n qc9c2i.pjmkb1ixe, g(z34f6i htbulb 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 cylindricajeg a.d:if h;v(ocg. 3l resistors are made of the same material. The length and radius of each resist vja gg;.(hdic3oe:.for 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 connectedf. kwk x3 1ork/sxew6:q :p4hx 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 resistance of this arrangement of fou f3rxk6p weo.xx h4:1k:s/q wkr 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 acet) hzx y3-dahusl01o( 0rrv7companying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading0x1- lv h 3dry )a(tozeur7h0s 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 cir5erg2/x3d lga 1 jhxp(cuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistoxggxlj2/d 5he1(rap3 rs 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 uh*kmke-d7k ycu:l /3 at the right. If the current in all three resisd-k e kuu*kl3/chym :7tors 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 rep dde:us:*3 za3bl,tra/gy+v presents a simple electric circuit composed of 5 identical ,/d:rvgu3lyd:z3 *at pbe s a+light 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 hv 0y+f 2fes 0yjl5za3gh8wf 7following statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistances?gyhehl02 aff w0vj58 +fs y7z3


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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 g+s 9(wkcd;zz a battery. Bulb X is brighter than bulb Y. Assume all circu;+d 9zwgs zk(cit 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 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 v: wyuem p+(k)through the identified resistor in 5 secondsv(w mk+p) uy:e 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 fodt389/neqg kg llowing simple circuit have the same resi q3nt9/k e8gdgstance, 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 6btg6louc grf+ w v .8m9i.n*e/.0 Ω resistor is 1.0*r9bgeg 8uftmi+ . no/vwc 6l. 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 are7 bso)(w*wlx1 8d kplh connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0h7kd8slo( b1lx*)ww p 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 resisto 9m)olhbvjw5yk kmhzz;0:,* hrs R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω,w5vh;*0b j,homzylmh )z9:kk 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. What is v8clepf-0 l3n g8f8cq the maximum value of the f83 evqlc08gf-8p lnccurrent 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 60 watt lightbulb designed to oper.y jf *f,u 4w-0m)s8itdj hvmqate at 120 v,jhdf4u.8 yw f)0*qj-itsvm m olts?

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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)4ult abld.5 3wgpbo- that is dissipating 36 watts of pod3pob -5w 4lat.u)l gbwer?

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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 "12,mg2hw6kacsg ;,kt1, x4dhk5 sdnyv3 0 volt, 600 watt.” In normal use, the current in it dkh5;,vs 2xgn ,k6k1d ha,c ys34mwgtis

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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 req)efous v1.w6 c*n-aopz 8v1q rg/v;i sistances could NOT be produced by a circuit containing only three identical 6Ω resis - s.voa6; 8g/fvv*opnr1uzwq icq)1etors?

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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 17i:vgsrq *mt the following equivalent resistances CA:gvmi7*rsq1t NNOT 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 cand(m*-fk tb6ix 8k; h)qp xix+t be connected together in different configurations. If all three resistors *(itdm;b) h6 t8xiq+xk-fp k xare 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 batb3b2c*0 y(j,n ceii/v ri(y rntery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit( ryii, cn ci/23ybb0 r(*vjne 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 in parald,5 nb9wlcy.k lel, the equivalent resistance of the comb,dn.ky 9 lc5wbination 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 haszk:rt049 x boz.w-nfz a resistance of 12Ω when operating at 120 volts. What is the minimumz w9:-tr nofkb.z0zx4 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 g bojbf/:m.3h7g f0hra 4 ohm resistor that is dissipating 36 watts of pooh 7./3g:fbgj0mr fh bwer?

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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 og na,5p l/r+ hwv psh6us+8y:qf current when connected to 120 volts. If the price of electricpl s5g8+: 6/whynhuq,v spr +aity 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 woul+wuphl858* ;wdebvio d it cost to keep a 100W lightbulb lit continuously for 1hiovpu 8dw e8;*5lb w+ 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 throuml h) 7-8amm6aba) 9k t(p.gljo;k tzjgh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the8m.6 )b mom-zktag9j t;)al h ljp7(ka 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 ofz 7z j(.usgkj9wf /g;,rrtrmr9hwe / d8(;hvi 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, whatz.vtdw9r;jhzh(rr( sim9j /g7/ r8;fukge ,w 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 connede/ * 7(ajroexcted to four resistors to form a simple circuit as shown to the re re7oxj (*/daight.
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 ft7l pfk c -kd(z)lr1pr4:t zy7our resistors to form a simple circuit as shown to the y1t(rpr 7klc dzf-kz t :pl)47right.
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 switca*yf6 ;(vrdh q3z:johxo(g(y4xb : lgh and three resistors are connected as shown. With:xvjb h 4ydaoy gf:z3*(h(lg(r6; qox 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 sni8 e-ga6/ fbqhinn2 /witch and three resistors are connected as shown. With the switch open as shown in the diagram the ammet-26i8/fnhbin ngea q/er 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 switchnb3cw8 gy0g3gn. r hi, and three resistors are connected as shown. With the switch open as shown in the diagram the ammetercrh,n3g g3n0iybw.g8 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 resistance? o) 7biehb 7kw4vu*+ow Assume that all wires are ideal, the bi vbk+)4ob w*7woe7uhattery 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 hywnm.av,j* ,circuit shown to the right with resista m.aynjw*v,,hnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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)vu 7yl)6vts glow shows five identical resistors connected in a combination series and parallel circuit to a vol6lty7 v) )suvgtage 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-y foy5;y1biwgk *x0 m-bp0 sh resistors connected in a combination series and parallels po -ygxm; *kb-y0f01iyb hw5 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 diagraog7;9*9pzu w7poy lbfd 5 zo:bm, all of the bulbs are identical. Which bulb will be wdpb 9l;9z7 5p 7o:oz*oubgyf 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 rehvre wea8. pr,f:ijx 1lx8 zd4d ,ap76sistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a,r, hxi p :7vzjraa.e86f8 w ed1pdl4xmperes.
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 ando/*nbo; zlcl xy +im p(,bhn-m)ap/ 7kf-wrc8 three resistors are connected as shown. With the switch open as shown in the diagram the amme ; xm c8fk7b *nr ,nya+/mizch-lpbol-) op/w(ter 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, )6q2y :vykvzv an ideal ammeter, a switch and three resistors are connected asvvyy6vzk ) q2: shown. With the switch open 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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