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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 metal resisto3wife8 10lvtbq/omfmw 1nu 5- r connected to the battery. Which one of the foll51 l f f1qm3n/tev0buw8imo-wowing 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 p89ejns 9 )odfmzuyi83arallel, the_________each resistor is the same.)8 e9 mu8j39ionyzsd f

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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 thfueg8l txx/ -2e filament to become white hot, while the largerl tx/2-efxgu8 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 houxjf6 dg0)xe 9/1lgzo(hgvql( sehold lights are being replaced with LEDs. LED is the acronym for which one of the fo 9dlq(1z ej ol hggxf(/v6)gx0llowing 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. ji9 v ypq2 k* jrm/k/l/:3rtjgfh,or 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 that the new length is 1/2 L. What is the r9o/ljtqj*r,rjk/rv mgy : /h3.fpk2 iatio 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. Wir,mmata , m;tr+e II has twice the diameter and twice the length of I. ,a+m m, tatm;r 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 c3 b8nyj8.i*vcb ura0 t;mc7 rand half the length of wire X. If wire 3uvnc 8b .cr;y*ca tmji8b0r7 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 length o wwxxl8d v62ag-m/gq- lu7evab)72w L and radius r. This piece of material is then drawn so that it is a cylinder with new lva7)w qaxl-x7u g-o2 g/vw2m8de6lwbength 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 wants to make a bri/nzk3hefezfu: 9 2 da3ghter light bulb. He decides to modify the filament. How should the filament of a l9 n/uzh kfae2f3e3zd:ightbulb 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 cylindricalie0 yo lx7f5ro ;8dp,u resistors are made of the same material. The length and radius of each resistor is:dry0 5oo7i l8 fuep;,x
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 +,bkqb+h4eyf5i qwr)the following way: “Two resf,hrw4kq)yb +i +be q5istors 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 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 crxb f (dvi)k/9ircuit diagram has internal resistance 10.0 kW kid(/vfr9 )bx and the ammeter has internal resistance 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 tn e)b9pp3dne- upc pt d,h57z,y2-fcu o the right. The three bulbs 1, 2, and 3 - represented as resistors ip3pcd ,z7yncp9)te-p-ub5f du,2n e hn 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 0pyga z4p2f ;hthe right. If the current in all three resistors is equal, which of tg;a4yhzpf 0p 2he 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 /mi :n;obtv g4d+kzm4of 5 identical light bulbs and 2 flashligo: k;4tmd /g i+mnbvz4ht 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 concerning the sil gqn5 7db*wj*mple circuit shown where resistors R1, R2 and R3 are have equaljg5n7* lw*b dq 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 battdh 7v81y2mv+y)wr omtery. Bulb X is brighter than bu)1d v+hy mt2v8wr 7myolb 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 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 ca4o sjcc* 6)yioulombs will pass through the identified resistor in 5 seconds once the circ*4yij)s 6 cocauit 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 rmulk/ u i *yhu8k 5d5fnf0+papf*2s)t esistors in the following simple circuit have the same resistance, which wonf+suum5u8*2l i tk/y 0f p da*5ph)fkuld 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 v5qqy0 2ysagkp0;x )4fz3nztcurrent through the 6.0 Ω resistor is 1.0 A. What is the nv yzg0py54ftqq0zx ;s k2 a)3power 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 aroot auj.0 klyxe/5ky 58x;ge6e 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 6.8k 5/e;gleu jyakx.y6 xo 5to00 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 are connected in parall * 6vz00etoou njj1fk3el to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R*0uvk3ot 1oz j0fn ej63 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 ratedx6m6u;;dlbbr l *d -vz 1200 watts and 120 volts. What is the maximum value of the c;d ;z*bd xb6rulvm l-6urrent 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 resist 5n/b tz;cukm/ance of a 60 watt lightbulb designed to operate at 120 uc /bn /tkzm;5volts?

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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 dissipating lq v x 3m8/rqm,mj:hv736 watts of prqxhmql3v:mv,7/j m8 ower?

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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 "1lvco 90l e3*ac/69j x ptcukk,20 volt, 600 watt.” In normal use, the current 6,9vp ue9/xt3 k* l cajl0kccoin 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 pron--l9rczcl( kbz y amv9z) 9e0duced by a circuit containing only three ideer(z-9lc0 9)-azkny9vzc l mb ntical 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 follow 3 :w .9fwepg(ry7fabring equivalent resistances Cew3:fp9( gb.yrfar7w ANNOT 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 v,xk l e)c(s yr)mk 9)4b.m5m4 j:lm1fyjdimube connected together in different configurations. If all f)l)u,5rv4m9emmi1 )k(y.dsx mkjml4:y jcb 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 single5nft (a*.w 3osd*i+0hvykbl )- omliy resistor is connected 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 battery? Assume the internal resistance of the battery3+*dlw* 0fktio5v) o(asn yb yml- .ih 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 (9 esi8hiu 9ddkg50j9mws/ w k(2ymbvresistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is cor( ev2mgsk 9 wd (sm9j5hi/8idw 0ybuk9rect?

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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 1gf3 ;dk;owy+mz k+o)yupwr7v 25exss w9br4/ 2Ω when operating at 120 volts. What is the minimum amount of time that it would take )p f; zoyk53 v; ysw2erux7swmk4d/ +rb9ow+gto 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 res+- z08-n9yp*m;c payjzi uimxistor that is dissipating 36 watts of pomap-n-0 z 9 i*yizypmj8cu;x+wer?

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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 drawpm77hgl 07qa*zk n-0 h zkh7tqs 13 amperes of current when connected to 120 volts. If th zpk0haqqtz h7k-ml 0gn* 7h77e 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 lightbulb lit contm1 mz*n9nv lo n9c-;nu( ,xys/nkb dj6inuously for 1 year at a ratednm9/1svln9nnbujoz -6 *m;(c ,k nxy 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 pow ex53c,3jntqver of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbulce vj3x5n3 ,tqb?

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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 watts in a g19xshc-kulouu9u. 4vr ))w v120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum number ofkv)9u gvoh c 9)l4ruux1 .s-uw 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 four resistors to form a simple cire.r/n(wg f p3vm+bec6: eq ny)cuit as shown toy/ge p+n m3b6w f)v:e .ecrqn( 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 a simpl 8cbaec(zl wrzt ;b;;)e circuit as shown t zcre b8(tb ;ac)wz;l;o 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)h0z;k5g (jnzl w 1uh+sn5bfw switch and three resistors are connected as shown. With the switch ope0k5+(jfs1hn wg)wl5zub h;zn n 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 swit:;ul h:5r5whvwj c-vw 2od 9vich and three resistors are connected as shown. Withhd ijwlwh2:vo5v-5 rucw;9: v 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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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 resistors al5q pjkgs3g,e v et 8:qu576xrre connected as shown. With the switch open as shown in the diagram the ammeter reads 2.sg5ep,xj857qqkr3v:eu g l t60 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 ibh8t , neohaq4 ,,qjsg0;wm+ ps the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical res0 ,sq+et mo,wn,b j;ghpaq8h 4istance 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 yc mmtafq7jw. h5f0 /hew0i*8circuit shown to the right with resist wf.5f/78a*c0meiyqhth w 0jmances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connijktx /l5s/ + 4grr9bsected in a combination series and parallel cg4 sr/jlsrbk5t9 x/+iircuit 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 sk1.p.+aal l 5ydp ajt;hows five identical resistors connected in a combination series and parallel circuit to a;y 5j+l.aaadt1. pl kp 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 i:r3. 6dym0nuz ;sds 4u 5gwtmndentical. Which bulb will be the brightestgs ;my6r :5u0ns wmnu3.zd4dt ?


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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 are con8yqz8:0a lx cbte2, kcnected as shown. With the switch open as shown in the di2kqetc8 ,z8bcl0 :a xyagram 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 resistobeupy;)l 6-vn rs are connected as shown. With the switch open as shown in the diagram plyevb;6)u n- 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 three resist4g2 nc gc(s+gtors are connected as shown. With the ssn+tcg42 g (cgwitch 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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    总分:50分 及格:30分 时间:不限时
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