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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 q819nr +jd shz4a t:iwybl,t /( vk5v8l9n ccyin the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resist9rjz:nds4cbh n q1,9/y ytitval+58 (8k wl vcor 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 r)j 6t b9hddfemr n .-vp4nka4ek;d ;1hesistors are connected in parallel, the_________each resistor is thebntmre;na9v-d;6 p k4ejk hdd4.f h)1 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 car j e6,:fc9 sx wbyl/8og;6sj hge)xz:uses the filament to become white hojx966wy l rg8 /o:sjeb);cfhes,:gzx t, while 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 household lights are being replaced with LEDs. LED is thtcm pr0 xu0q( d6/:udc)rdxm )e acronym for which one of the followdmd6uq:)p xr 0(/ctu)d c0xrming 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 resist xaq ea,-5hml8or 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 tm xq8,a5el- hahe 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 iq. fme xg,41vare made of the same material. Wire II has twice the diameter and twice the length ofifmq1.eg ,x 4v 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 y 95z2wej -xw6k.qgtkmaterial but has twice the diameter and half the lengk k9j- w gtqyx.z526weth of wire X. If 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 resistorg4:xg ed4* 5kan +vllne7ax6c , (xtzr has length 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 bec lg(5e na+kldx,n6 :zrc * ea4xxtg47vause 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 Thoma),r*:ygk oxn 6sid e.ms Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filam rndk moy,sx:.6*ige)ent of a lightbulb 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 cylindrical resistors are made of the same materilh/8ib+;h/ .p eyzikoal. The length and radius of each resistor ip./hi;b/i e yohl8+kz s:
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 y0iqo6 h3*6brm ;v1 qlfbo2eh resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistorsb3hq1 l6 0h ro;* 6efoyvm2qbi 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 diagram has internal r 9ejfrui ire-9ew.,y8esistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 m9-r8efwue.i ,yi9rjeA. 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 cirou p4aqs4 +orbs3m :qnf6z-+ acuit shown to the right. The three bulbs 1, 2, and 3 - represented as 6+as+r aqnmo :3bzofu44qp s-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 elect cmph/k bf 7 1ih/;t2fyo.i:ztrical circuit at the right. If the current in all three resistors is equal, which of thefy k 1itc:.2/f;ibtozh/7pm h 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 6fam6em,79t spf /djca l14y da simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (oreal1a9 cms,d j6 m4f/pfd67 yt 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 followin.gz.b6b (epz v8esqr yb3 o)0hg statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resbb3yz8. q06egvpsz r. b) h(eoistances?


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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.29: Two lightbulbsmhio 50)wro j 6*zmelc,nou: ;yrq: 8q X andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are); :u50iywm qq8ron:m el*rcz,6o oj h 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 pasld,8+qghdpuop n .x3cs.nf60nb u f 81s through the identified resistor in 5pc8 fl1qh8du3xb6 +ndp.,s. g nn uf0o seconds 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 2xqszj/wf(9sitj x*0rsz*v7xdxk 9xz/9 +vh resistors in the following simple circuit have the same resistance, which would dissipdz*xv/zrj+ s9xfvxt/9 w0 x79jq si(2kzsxh *ate 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 6.0 Ωge hl3f) -k1zx resistxg1he3f k )-lzor is 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 -xa-wf fpc h35j5hd)a 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 dissipates 6.0 W of power. What is the voltage aha xj)-p5 f 3hcfw-da5cross 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, y2j3lm c.icr7/ue h;rk i4u*iR2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 hke2.u7lr ; *m4 i/cujiircy3dissipates 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 whq1xcg av lh3p*v ye.ne04g8 .atts and 120 volts. What is the maximum value of the cu01ge.alh* y38c n vhge4.qxpvrrent 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 operate cnp9n*e knok) al*+3) t-qhi ii9u) jeat 120 volqlokj) echet)+n *3) an p-i* kui99ints?

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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 rexanxun) 4 e;qr1,:wis sistor that is dissipating 36 watt x; )w4r1isanqe:unx ,s of 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 is7 o:/dzms0i ie marked "120 volt, 600 watt.” In normal use, the current 0e m7zs :idoi/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 coul tfsrsvr,/+2q*2.k t 4x s4:zecrocqo d NOT be produced by a circuit containing only threeot s:* t qfssoz2x+cr cr2/k,e.v4 rq4 identical 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. )+cf5:a1ih( wdig1b uhhw9svo/ chw+Which of the following equivalent rwich15owu1h+)hgd s :aiw/ + f9cb( hvesistances 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 oc q; .ix5b,bz2sxl4j if different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values oilxbbxjiq45zc . ,2s;f 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 total power P is df/ -:gx5qad oxvu0 -heulka /hn,g b05issipated in the circuit. How mu vkh0no,g/ ugla 50/xead-5 q -xfb:uhch 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 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 wr)g )-b4cdkpuy 1bh7vk5(cdin parallel, the equivalent resistance of the combination is 5Ω . Which of the following statemeny k)4c1 -bbprdk7)ug vc (wdh5ts 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 8q52xoi4sob j 12Ω when operating at 120 volts. What is the mij5 4o2qsoxi8 bnimum 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 6 h+mk7sjx- nhflows through a 4 ohm resistor that is dissipating 36 watts of powernsxh hj -km6+7?

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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 curri2mkyfr )0xcl:jqw vne/+5gb ; tn,y.ent when connected to 120 volts.)i0 ,xre/:n;ynm +2q5kyc.lbwj tgv f 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 100W lightbulb lit conxt*.l 8autr)l .v s*lrtinuously ftll8)la* r xtr..suv*or 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 resot34hv,1or vaults in a power of 24.0 W associato,v1 otr3 h4aved with the bulb. Which one 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 compute *yzy 6gfm p6x -)8myiiomt18vr 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 )8p-ymi6t8gfy1*y vm xmoi6z 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 fo4(x iq*q*hmc 6)1qpshsqs g+rur resistors to form a simple circuit as shown to the right.xg1*qm r*hh6c )(sp4 q+ssiqq
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 gzf)ujwyzms s,-5o c 4/x3/f bsimple circuit as shown toof//su,) s4wx3 c-5zmzfy jgb 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 switch and threefw dj 0w:y,+ii resistors are connected as shown. With the switch open as shown in the diagray+i if,d:jww0m 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 8j9 mgvn2g 5cwsc8:v 0jpwlp3v i bh82three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.wgj 9 v32i8828c:g0j npp l msvcb5wvh
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 aruy ir (5++jwtre connected as shown. With 5tiu+rywj(+ r 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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit shown to tde5wafa/ l xstd)gge/7 11j(ihe right, what is the equivalent resistance? Assume that all wires/ x/g5g t)a1dwl7fejd a (si1e 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 resistance of the circuit show1n b.iak;j .xpn to the right with resis1bp;. ak in.jxtances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected in *b;rt:lyaaprbz5k;. nx,e0d a combination series and parallel circuit to da0eany. r r*:txlk5zp, b ;b;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 shows five identical resistors connecte -duat:sa y; i) dkegw:(0o)5hvddh ;od in a combination series and parallel circuit to 5 t d s0hy;gw-o)hvda: )eda:(dkoi;ua 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 theqr84sth9d 6ho ha0j3umw m b;s(x1 os0 bulbs are identical. Which bulb h0r6; asmh3 0qd814 xs(9ubmsh tjowowill 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 three resisl:pzjmvowe:74h( ; ii*det/b tors are connected as shown. With the switch open p 4*miitwd::bj/hoe( v l7e;zas 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 amu v6w3 wy,ez-xmeter, a switch and three resistors are connected as shown. With the switu yxevw ,wz36-ch 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 battyeyf4ns(/a1p*4a 0 o6mo ojekery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram f komyoae4o*a 146s(/py ejn0 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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