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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 currento.u+u 8juk tr8 exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistjk+8 u8t u.rouor 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_________eacj cx8z40gua0)976edv fmha9 p*qj cjch resistor j c 7jz09p cfm948a6h0j) dqgav xc*euis 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 filau5bts xc*:w /v )oioz+s21 fbament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to ucaxi f s:oowz2*/s b t5b)1+vthe 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 ho5tvtcn+qk04 i usehold lights are being replaced with LEDs. LED is the acronym tin 4v50k tcq+for which one 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 and cross-sectional arxlz( ro0( y2b snl2y9hea A. It is to be placed into a circuit, but it first must be cut in half so tyhson l9b 0(xy2z2(r lhat 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 oufxhip4p (6z7f the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, IIpufx 7z4(pi6 h 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 twbl. z9ug1*bkpice the diameter and half the length of wire X. If wire X has 1k9 z*bp.lgub 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 piece of q1cwly0u;m (4 i4bkie material is then drawn q1ywe(kl 4;ibium4c 0 so that it is a cylinder with new length 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 brig t6 ;)oaszx5fehter light bulb. He decides to modify the filament. How should the filament of a lightbulbxt6a;5 s)o zfe 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 samr cznj19h5w3g ju-cy4 e material. The length and radius o y -z4h9 junr15w3jgccf each resistor 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 connected to a bajtly09wrw. 9vttery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel tov0tjw9 9yr .lw 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 accompyzj/z9lg.u1j ofq u 24n re1l;anying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resy/lru9zjeq2 1. 41 ngjf ;luozistance 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 circ ;ciuf7h+sy h-y g5aqz s514fkuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors i5 guqai hz+4s-71fks hy;5yfcn 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 circs)jkaj7at):o uo2 w43ieuo7kuit at the right. If the current in all three resistors is e a4oko3: kjitu)js7o27)e a uwqual, 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,p-n 2oem pha,qp4vq6(q 7rh o composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbso7ehq,r6pqhpovnm a(2- 4 p,q)
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 concersl.f-wdeqf.8nb/ *kq ning the simple circuit shown where resistors R1, R2 and R3 are have equal resis-wnf..kf8 /e bdq*qsltances?


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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 sericd 5ya( ;;whbwfd11bkes to a battery. Bulb X is brighter than bulb 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 bes(;1d1; wd 5cahbfkbwyt 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 through75y s.etnpa.jknf hfhjw( vt/ ,z 11+j the identified resistor in 5 seconds oncz s,e wft.t(hjfy5va+/7n11n .p jk jhe 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 84k*2dhf j keb zhbgds*o,ib5 iw.:r9 following simple circuit have the same resistance, which would dissipate the grfe9r4b b ogzw.d2si8 k: *i,*b5hhjkd eatest 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 Ω re57 qkh) 0,b adv;pnfqlsistor is 1qal0vk, 5q 7nbpd);hf.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, 6g1;j3 (9 a kw 4fczrfqzoizd9and 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 af w kagq3r c4( jfzdozz;i6199cross 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 paralleygt34h .5lcvtp 3a4f rl to a batt.45 t ya p4vlr3hcgft3ery. Suppose R1 has 2V across 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 volts. Whgof v9kj3:,+azq0dty0, yiabat is the maximum valuejf, qyava +ky03zi o :g,90dbt 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 resistanc jl in3(rujb ,e1y)fl5e of a 60 watt lightbulb designed to operate at 120 v3ybj e5 f,ruj)i1 (nllolts?

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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 throug2k d(3my)ky 3gjs6ajjh a 4 ohm resistor that is dissipating 36 watts of power?jkj3g 6s )2ydy3a( jmk

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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 volt, 600 watt.7zo0chnt9q nfexsw19jta 8 uz9vr; 0( ” In st08f90nzr7n9hxua9;1 e (wjv tocqz normal use, 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 c6 *b*io;o jlcfould NOT be produced by a circuit containing o*oi c6fl;o*bjnly 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 threewro45* 6xqfs y/gi n6ph7 0pyz 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resistorshx4p ginsr0z*q6f7wy5 /p y6o?

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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 togeth9av5 zrma)y g3er in different configurations. If5yr9 a3gvza) m all 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 single 65zf/4j pbzjn5b*cg x 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 battbg6 n/ zj* fxbcj45pz5ery? 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 fw vckw1ta 5z5b1+cj/, having resistance R1 and R2, are connected in parallel, the equivalent resistance+wt bkzv cc j5a/1w15f of the combination 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 63x,ui byvra3t 4 b;nhthat it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would ta x3nb4hr,b3yt; va 6uike 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 throuclcicl7(- *gfb6 ef d/gh a 4 ohm resistor that is dissipating 36 watt6dl cbi- g*cef/(7cl fs of 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 h9 *0x); qeg9 voyebozjeater draws 13 amperes of current when connected to 120 volts. If th* 9oz;vx ebeg0o9 q)yje 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 contli mvxvm5azoo-(rj 7n7-x1fv3 v4f r5inuously for 1 year jon -vr-zo7rx3f(i1fm7l 5 5xm4vav vat 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 resul *4gmcjslv;4i ts in a power of 24.0 W associated with the bulb. Which one of the following choices best reprec; 4glvisj4m*sents 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 ahpva 5j)h6 km- 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, what is thhh)a j m6p5kv-e 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 form a / 8 8anw +ua3oimxcx8esimple circuit as shown to the rigix+3exo/ 888uwnc aa mht.
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 co4.y *zefs+b7b 67wh f qyv4( +renhgronnected to four resistors to form a simple circuit as shown tohq +r vwn6szyy (gh* be+477rffeo.b4 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 batteryk1 qjqyx0umqy m h1f:t(;e0/i, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammet0qq i1tyhq myf(/j;mx0 :uk1eer 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 idha7ynt e- i-c9qoox+)eal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2nt -oie 9-ah)y7+x oqc.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 three5,zpch fd34 w8 obeb8 08g, pm6xjfbon resistors are connected as shown. With the p b 8 b5wdcg hf634m 8jxznboop,,08feswitch 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 tm+ww.i ,vqvd:i3lgrk5+(h7 pisu 5ta o the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resis u:5r+(7dv3wqa sm ti v.lhpgi+,5iwk tance 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 ww2 puxq kv;+6xs8n8 g the right with resiw6;ugv2w8n kq 8spx+ xstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a comb 8vnuoxn+a9 q2ination series and parallel cnav no +9x82uqircuit 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 shows five identical resistors connectedvuf; o+8 l )pu3yfeylp 2wbo,; in a combination series and parallel circuit to a v 2;uby,opyw oe;lvpul )8f+f3oltage 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 dibm wy 0,lyt jn9+(jw8zagram, all of the bulbs are identical. Which bulb will be the bm+blyzjyw0 ,tjn8 (w9rightest?


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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 resistor0- ,qur c re d,xhg1plafq1h/*s are connected as shlp r qxgrf,1 dha0*q,/ehuc1-own. 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 ammeter, a switch andes6fh /l) z yv/ k1evb)r n1b/y*y/vor three resistors are connect/nbeob y6vzrs)/ y)fkr 1hve v*ly/1/ed 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 battery, an idealvm + uje;-cg,xgz.b:mzwj c:2ls7x l0 ammeter, a switch and three resistors are connected as shown. :,j;csem72jzgv-xu l0.:xl +b c mzwgWith 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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