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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 elp :z9carz 7 im2 jy*4dweozc*+d,ojr 0ectric 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 the direction of the electric field through the interior of thejjoa* doc9z,4z20 y +*ewz:p irdm7cr 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___,7gfs( a+1a b9epguo k ;de5vr______each resistor is theu1+ake; 5rdove7 pbg gf(9a,s 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 lighj hon (p//xpql x;2it h: 0kkln/,t/gltbulb causes the filament to become white hot, while the larger wires connected to the o(ht kkh jxlq pl/:p /;nix/n,0tl/g 2lightbulb 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. L -;9kxo3m+ghzrx+j.s v +:jjucity+n55 tmye ED is the acronym for which one of the following chjt 9iyy53jc+ x.;v+oturk:jsmx + +-5 nze gmhoices?

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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 74y(r jyn qz:0hdgt m+area A. It is to be placed into a circuit, but it first must be cut in hadyqg0(mz njht:47+r y lf 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)hz ii (vwu93qhjak07 made of the same material. Wire II has twice the diameter and twice the length of I. If I hasi(kq u37hhvaz0 i)9wj 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 d(,gnos ng;s8jzz u28/n0x ly+ w5pcvziameter and half the le j5 u znwo+ 2yg (pz0,c8lssnxz8ngv/;ngth 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 resistor has lefof /o3-h0ia,cun a2 +d.ne :wgbu1*rfsee x-ngth L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. Whf.3g -:wnx+-e1n/ ef0ao, r c*uief s uobad2hat 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 brighter light bua*rbo 4ii)pmqe :sa 2mp5/t1/mo6u kulb. He decides to modify the filament. How should the filament op2 ro5*tsmke): mup6mb4a/ 1 i i/aouqf 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 resistorsr; 7w2qwd1n xe 8tzo up9lm8j/ are made of the same material. The length and radius of each resistor is: m/;2dju twxw 1n887qprol9ez
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 69 ds+ y-csnk)kts+qqof resistance R, are 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 issycs6dt9+q -s )k qn+k 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 accom -sit7n5au eu n.d,j.rpanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 iaj7,s..uu5nr- n ted 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 to the right. Tos*)m oari+ryc8czbha+5 k ltub ;47; he three bulbs 1, 2, and 3 - re8*;cy7k zhl +mbo5uctr+ 4ba)i ;soarpresented 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 electrical circuit at the right. If c.f f37zf4c;xjc8yx 6-olkysthe current in all three resy.f4soy7fxcxkj- clf ;cz6 3 8istors 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 represents a simple electric circuit composedw*-6e r y60i,r cirt(rtz5j fj of 5 identical light bulbs and 2 flashlighr rt j,z0-r6wey 6irci5j*ft(t 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 cou q,e-7ci x5fk+1lvxqncerning the simple circuit shown where resistor1ve5x-xfu iqcq+k7,ls R1, R2 and R3 are have equal 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 lightbulbse-ih6:t) znn x 3rqw,-uh7jck X andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all6u z i7 ntejwrc)-:h h-3,qxkn 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 coulombs will pass trxycxv 9 hc(+tpv// mx )1x5v,wwgve*hrough the identified resistor in vv+w,cv5py/r he9g ) txm wc(x1/*xvx5 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 resistors in the following simple cirfn/. l1p*o1zl-l xu1j3 zarkln5 4lybcuit have the same resistance, which would di1z*yu-rll f 4npnbo z a.k1/1xlj5l3l ssipate 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 dia9(lcowv9yt3 k gram, the current through the 6.0 Ω resistor is 1.0 A. W 93l v(ckt9owyhat 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 to a bat)q(a z zaods,al ga+(.;+szzk tery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, an)k.azaa+s(,l;o (sqa+gz dzzd 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 resistors R1, R2 andR3 are connected1b2l/pd0rewqy , rjeo1la*5 q in parallel to a battery. Suppose R1 has 2V wle qr/21o y*,r1bql05dea pjacross it, R2 = 4Ω, 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 jai-xi kx(6n0 volts. What is the maximum 6nikx -(a x0jivalue of the 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 reb 75 ay9gmv wj ,-zia3a2zcfe0sistance of a 60 watt lightbulb designed to operate at 120 volts7fzac e2v5wj0yg,i9az amb3-?

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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 mgu i+2.xe 4b*wz: (zuv8lw fb4 ohm resistor that is dissipating 36 wa:zx ( b4 wzw uleg.i*vf8+b2mutts 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 usedltnt s 469vzlg mwy0:4;xesu+ to press clothes is marked "120 volt, 600 watt.” In normal usv ln ;x9 +s0tsy:guw4let64zm e, the current 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 could NOT be produced by a circuit coadu+3-.ybyz dxe,z m9 ntaining o m-zu ydey ,9bd.+3zxanly three 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 res:xa yn3/s 2inristors. Which of the following equivalent resistancena rxyi23/ns: s 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 of different values can be- n+icluag- j0zb 6d*n connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produced? id6bg-a z*nn-0j +clu

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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 resis)gghkf -8n 4 gc:s.,f pyk6itbtor 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 ref-c4 p ft h.:6kygbk8ign,)gssistors 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 resi9mk tct* 1ii3xstance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about kmit*i t3x91cthe 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 w,e7+l 8sufia6uqxnof5cuq8d57l + e a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would t,ofeq 5u5f8xd+le 7iuuqa 6 +wl8sn7cake 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 dissipating v2h d8 8dtczvl8w,9zh36 watts of powe8 hz,2dvc89w htzlvd 8r?

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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 1km 8sd1f4lqy; modb *d ri/ 4ien*4:kv3 amperes of current when connected to 120 volts. If the price of electricity ilikvd *msr; yomn4d:1q4* d/8fek4bis $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 1 e-p3 yeqf5gd+*h3dl4zp3vm k00W lightbulb lit continuously for 1 year at a ratedl +z em -3 h3pq5y*fd4kvgpe3 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 *f8du 7e;ex) gkpu 9ekresults in a power of 24.0 W associated with the bulb. Which one of the following choices best represents * ukg87eu epxdkf9) ;ethe 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+(2n m kfs.7kzwe5 :,cokntqy owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit,2tnso.( :zm7fkkn e5w +kyqc 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 resicek.8rv- ,bmg sw5y4 -wa;ova stors to form a simple circuit as shown to th, yorvvw4s c b8g-;e-.wmka a5e 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 forh;x*y.1w)tjr * jyi)-gszz zc 6rkmb6 m a simple circuit as shown t.gj;ry*6iy) 6hz kb x-rw *t)mzc1szjo 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 three resistoi9(oqo 6npc; va1 5duers are connected as shown. With the switch op 1qdc(au59i6e o ;povnen 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 batttw;: apvz6e( pery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shz tpp6v(e:; awown 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 idem )b5o:ves db.,n;yaval ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammety,5 .svb):vo an;dm eber 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 resiu zdwx:31+vofstance? Assume thvzd13fwo x :u+at all wires 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 shown to the right wi /(y3koc-r;,rg19o cs w lvxqwth resistances rkvw3c;, / (cxr9wq1o- yso lg$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 cmrchk86km9 e q-7spsjyk 3 ;o-onnected in a combination series and parallel circuit to a voltage source. yh9-;8 csq- ms rk67o3 jpkekm
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 connected inv fk2x2a )(lss a combination series and parallel circuit to a volx ssfv(k2)al 2tage 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 dq8uqv fp(ql;;7 pqd ) d9tq/biiagram, all of the bulbs are identical. Which bulb will be thqlid;(q)pvq/ d9qf;pq 8u t7b e 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 + /2 s+ptb6/il;nyyla 0ncr raand three resistors are connec/0i lnp l;ay/nryr6+2sa bc+tted 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 ami aw nusp i9.rw0qum1nr i vs2p4i0/89meter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readn 1i8rs20u v.p m9wisi4uia/wn 0qrp9s 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 resi nfbq+h/pk;c2stors are connected as shown. With the switch open as shown in the bph 2q+/kfnc;diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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