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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 exv2c 3 j scom8j; ewb3i,k0h/bgists 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 the direction of the electric field through the interior of the resistor?mh0;3jb8 c ce/3kbwj ,oi s2vg


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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 resgx(mleo/c0x(if42tir9 vh: nistors are connected in parallel, the_________each resistor is t i4c0xme(v9/t2nr(og f hil:xhe 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 lightbulz,*uc6lu5df /zhfo0jr u,6a ck v)x s;*b4 xskb causes the filament to become white hot, while the larger wires connected to the lightbulb remai6zska4 c 0kb; ,5c*jxuxfz *ld6rh ,/ofus )uvn 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 household lights are b6w) (wjrbn*lb 6:mtqn eing replaced with LEDs. LED is the acronym for which one of the followingq*m(6tb6jn:w) r wbl n 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 and cross-sectional area Ah8+sjk v1w(tt8d2c n h. 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 resistivity to the old resistivitynwtd+kjs hth c218 8v( 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 matex +v 6od+lvs4xnm yq-8 gpef97rial. Wire II has twice the diameter and +fyq7doe vn8+sgmx9x l pv-46twice 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 pej+ b )w9jox y 5i/tizz8e/fmh5m3b5mt/hn6diameter and half the length of wire X. Ifojbthf5eh /je m zizm+pn xi65/3 tmb9 8)5/wy 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 length L and radius r. This piec. n:cottidpg04 /(hym e of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material :mgo0 ih(n.dtcp4y/t 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 brighte. kmy,afv,o+w r light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb pr,w.+fymk a o,voduce 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 length anwpy 5r*z )5laqd radius of each resistor is: 5rqzl *ywpa )5
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, are2qgol l)1;w ln6mbeio+uv )h+ 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 resistance of this arrangement ouwl g 1;qob l2hv+i)om+) e6lnf 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 diagram has intern +: h ;yqrez+0(pe2maoezzw e*al resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.0e(z +m;e:h ap z*o20zee+yqwr0 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, ; y- 1ldp2t)cno jngvn:41ugwand 3 - represented as resistors in tvggl w y1;:1t 2pnujc4d-no)n he 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 thea1up.mi bk,9pk(8krl current in all three resistors is equal, which of the following statements must be truek1m l 8bpkku,ri.p a9(?


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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 comck3/u9 dhk2 7ngv7mbpposed of 5 identical light bulbs and 2 flashlight cells. Which bulb (b h92u mvpdg/ 377nckkor 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 fo)9 u fy3m8uzg2z rro;rllowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equa rmr8o 3)9ug2zfy; uzrl 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 is brih,n f1oq9 e 5d(nsiiup/jw+s-,9hlgmghter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected n 5i smhpgd/ wi1f,n+seo99-j, luhq( 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 coul )g:w33a fk- tcki q2cbvv6ys:ombs will pass through the identified resistor in 5 seconds once g3-kv6 w:kyv):sba q2 3fcci tthe 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 pr;vk:-wov/wocjvrr 0m 3 05a the following simple circuit have the same resistance, which would dissipate the greatest powerw rk/v0- 3wcvop: ;jorvram50?


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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(u;y ls+ -;yb1xj mwven vkx4) circuit diagram, the current through the 6.0 Ω resistor yxw)m-b1y+ v ; jlvx4s(;nke uis 1.0 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 upx ;xmw6j *zy 6ehs2x-y3y) s9i0muk to a battery. Suppose R1 carriesu*p26 mwx6z-3xus m)sy i9yx j0k; ehy a current of 2.0 A, R2 has 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 o9z2nt +i7tp presistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Whp79tzt 2+opi nat 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 volnfoyu0 0cgu86 ts. What is the maximum value of the current under tnu uy60fco 0g8hese 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 67eql* xnl e09f0 watt lightbulb designed to operate at 120 vol e7nxel*lq90 fts?

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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 aq6sa 9qpd/1e d 4 ohm resistor that is dissipating 36 watts o 16sda9qp /dqef 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 vobfyigt2hs+ 7tt1/ 1b2yq*wd alt, 600 watt.” In normal use, the current *t1q2ysfd 1 btgba y2+wit/h 7in 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 *v ,npjgns*u2 NOT be produced by a circuit containing only three identp* *uj,nsn g2vical 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; 0liu)kb.q6.fibga4g r8mqg Ω resistors. Which of the following equivalent resistances CANNOT be produced using allg ; rggqmub6ikq.8b4)f. 0ila 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 in dirt:nuw5 h(7g9jmtu /u fferent configurations. If all three resnw5r: tgm( 7uhj9/uu tistors 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 coa;)quuyj9qd 7- nh3ronnected 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 theayqh- nu;jru )o3q7d9 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 yds6zljz 1h 5t5)fzv ,q zw0 tci)gs87h2k7flR2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of fl)zt z5i0std yhchs72gv8k)q75zz16w,l f jthe 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 )e:v0dv.xbi udl4* fk/ t*tyh6g9y bdoperating at 120 volts. What is the minimum amount of time thah9/dei* 0)u6k4vd.yfvybx lt g*b:dt t 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 is dissipa 4w cgnmo 4xjf3hx-1o(ting 36 watts (m4h c3 jxfngo4x-ow 1of 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 curren4wt8 :/jqvw aat when connected to 120 volts. If the pr8:4wj qvwta /aice 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 z) a fkxry;c1noq2m;ca3 6j2hfp-navx*l9x 5how much would it cost to keep a 100W lightbulb lit continuously for 1 year acof*9y)c5xr nl2aa;x h;1f2 -zx6v ka3pjmnqt 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 .uq4ys7qyqm s1jde7 8A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best representsd7qj .s myq8q1syu74e 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 computer rated at 500 watts in8l2p q9zbp)l ou:;rpj a 120 V circuit. If all computers are plugged into a single cijppl: 2oq8zr9b;pu) l rcuit 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 four resistors to mk n8tc bp7zw9nmng*s j96*9 k (wsxz3form a simple circuit astszw*jm w n9*n(mbn69k zkg3 8p97xsc 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 fae78e x7(lkbx our resistors to form a simple circuit a 7e7(axxeblk8s 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 ideal amm0w q5g3pq/v1 1 8 j1nl zig-hw7rztajketer, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter i715 0vqqkjrg /zwgtanhp8 131 -zwlj 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 resistors3o h1ac *nnp+ 9tm i/wy,lc,ak are connected as shown. With the switch o*k,owpa,i/ 1 3 lcmcy+tha nn9pen 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 re3:ytjx a i13;ype8ie3q1bmcusistors are connected as shown. With the switch open as shown in the di1x3u1ye cp:3iy j m i3bq;ate8agram 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 equivalrsfs57l dm3 +b7std ,cent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance R35m+7c7ltdds, bfs s 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 w(xfetl633ywzkx 6 h rt(pb1 +shown to the right with resip(yt3ztx bhww6+xk1 f 3re 6l(stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identica4o:gqv b690 1fqtp5 sx mw/urwl resistors connected in a combination series and parallelw50g6wmruxp :91tbqos f4/vq 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 belo fcqh29//wvmu w shows five identical resistors connected in a combination series and paralcw/ v/ h2umqf9lel 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, wn. om8uvpv6h30c9u y all of the bulbs are identical. Which bulb will be the brightesovy9 wcph8u3u6 n.mv 0t?


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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 ammetexi/78m 4 cd4s/cb ctw :kkdy5zr, a switch and three resistors are connecc 5/zym7/sik4w ct48x ck:dd bted 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 ammetq-ckj2lp +* jwr-qvxsyzgi)h2fr 527er, a switch and three resistors are conne*s) jp-zxri2qvflc7hyg2k5rw2q j -+cted as shown. 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 batteq a*hoik /yn+s4x0n6 4jbfzi+ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open a fxy ni04zh *jo/q4nbk+sia6+s 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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