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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 resistor cz(xt xanfq/* +onnected 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 resnxx/+(t*f qz aistor?


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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_________e vkx.,v+v.k / mv*aykol k3g(jach resistor is the samekkvaky(+kv . 3*mvol/vgj . ,x.

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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 the fil/n 5kl15rtrx;bx+ g0 iohh1nik0*qi oament to become white hot, while the larger wires connected to the lightbulb hb5 rit *xl; nkni0g1 r0/kh 1o5qi+oxremain 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 householleyl6 m* +*jq4tmowr.d lights are being replaced with LEDs. LED is the acron 6rlq .lj w+**4yommteym 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 cr(ilufn .21o ,rw0r rxioss-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 ratio of the ne1rir( r0,ulf.inw2xo w 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 -ws9 x.i6;oskmttok1 material. Wire II has twice the diameter and twice the length of I. If I has resistanctwk 1;9x tki s6o.sm-oe 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 afas0vb wen+t 3n6tf9 (nd half the length of wire X. If w3(t9wn+v6ntfsfae0 bire 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.nb8 j0/ t;mxeg 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 because of thi/0xtmgb ;8ejn s 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 aiqk0 lcs;. ef ypc0e-dfd:c29 brighter light bulb. He decides to modify the f0 :cdc2;ffe- lis0ck.deqy 9 pilament. How should the filament 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,ly15 0:pdaeb 03bgwg x35pkdtyxl8 p the same material. The length and radius of eacw la,8pdgbpp 31 :0y5xdx5e k3lygt0 bh 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 resist t9f5.w99 qgu3kvlw dgance 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 is connected in series to a fourth resistor.” What glv.u 395 99wdwg qtfkis 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 h6bhxu 8i85 en )l2pklin the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal rel8 x)u5lnehh6b 8i2kpsistance 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 to the right. The t; r4xdrssf); qhree bulbs 1, 2, and 3 - repr rs;x s;4)qfdresented 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 ele3/ gqvm+k ino4,va ae7ctrical circuit at the right. If the current in all three resistors is equal, which of the following statements meai/vm nqvo, a+ 7k43gust 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 c+o z:y0s +/cukx7 onmbomposed of 5 identical :ox u+ cm+s/k7 b0oyznlight bulbs and 2 flashlight 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 t*va yf-uz 5z)r/ckjqh39 5 ivihe simple circuit shown where resistors R1, R2 and R3 are have equal resistances? iqj9 u5f a3*vr hv/z-icz y)5k


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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 vk r+rzm1u+7nv 9q00ujxt pv4 andY are connected in series 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 best represents wha uu0v nz+jmp 179vr0kqt+vrx4t 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 throuf1- clz/*i jm lr+z1brgh the identified resistor in 5 seconds once the circuit was clmzzr+bi 1j* lf/rl-1c osed?


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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 simpllm)1 scyiwyden4lg; /z 4n */xe circuit have the same resistance, which would dis/x1c/nlynym *w z) i4ge; 4dslsipate 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 diagr1/2f 5 gctoo7uk,zl v7ay:ab dam, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply vo : zofl775c/ot,ab1vgydu2 akltage 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 top fwye08p(2xypfet7 8 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 acrosw0x(ftyf72 p8 e eypp8s 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 axg;h /:pu v6unre connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, n:6 p/ hg;vxuuand 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. Wht.h5):wrrdu r at is the maximum value of:)hu.r5 rdwrt 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 resistance of a 60 watt lightbulb designed tov5it /e *0/u rjdlq;(o2prvl q operate at 120 qejiup/v *2otl(0r;/d5 rvlq volts?

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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 oh+(fm6q-fqd.yl)m jg e m resistor that is dissipating 36 watts of (+jml)6q gffqmd .-eypower?

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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, -u,n ws9fc6hdz ;+v jlk50v+ziq8 frl 600 watt.” In l uj 8vk 9qiv+z; sw6rzc-n0 fd+5h,flnormal 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 could NOT be produced by a m2 cxe okh4c:o9t0s4 acircuit containing ono0scc:h2ao4m x etk49 ly 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 resistors. Wil(09 e7pmnm; qk-qx rhich of the following equivalent resistances CANNOT be(neql xp- ;k9q70mirm 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 connected togethyc1w/ b9*qv o3ok *jvb zu)uydqb)46uer in different configurations. If all three resistors are used in a circuit, how many different values of total resistancvy*dy 9u3b*b4zk1 uqbw6 vo /u))q ocje 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 vq ;1 ddi;ch34q-lj kmpower P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in svl- ;j3 qm cddi;k4qh1eries 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 connectesn;rq*as1u:mr k* -v6d+ fg t gzyq*v,d in parallel, the equivalent *a g ,s*:;vf rrm1+sk* ydtqun-gv zq6resistance 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 that it has a res *zp0pp:gpk4 jistance of 12Ω when operating at 120 volts. What is the min0 k p4*:zpgppjimum 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 flows through a 4 pj yxt)e3/tmm6r kz 7+ohm resistor that is dissipating 36 watts of pe 7t3x t/+r 6)myzjkmpower?

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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 ;vd;h:czk77q 3jayd fof current when connected to 120 volts. If the price of electricity is dy h;czj:d73 kf q;va7$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 il v 6 p8+kcpe:ptuc3.ht cost to keep a 100W lightbulb lit continuously fo8vc3p +c:lpe h .up6tkr 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 lightbulb4p -:me:wigtf3y rh z7 results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents th w-h:r y7tpmi4fgez:3 e 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 o)dtb i9 ds5 rf/hs0::z: qephrated at 500 watts in a 120 V circuit. If all computersz)9d0 qoipbf5 : hsr:ts/ eh:d are plugged into a single circuit 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 cokimgfrjc zr 95 c2bdn7 u)3tp:2mw 64vnnected to four resistors to form a simple circuit as shown to thjzcr b dki2cr3pu2m59m:nw 46vf7)g te 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 resistobw0z:ikm4 etud21/eslx (. wers to form a simple circuit as shown to the right.mbe ukled4:.0 (2/ixzwet w1s
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 batte,etip*z dwm.g67 wbdwlwm;x ,6.f(l fry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rx tzd;p g .ef6lw,7fiw6 .mwd,m*(w lbeads 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 amm1(s; hoz8 zypteter, a switch and three resistors are connected as shownoyzs1 (8 ;thzp. 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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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 thv y)e zjhq-lb,g*2l0 hree resistors are connected as shown. With the switch open as shown in the diagram the h j,l e-hz0l2vqybg)*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 shh4q4+wbg/ ajkie s41 fown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and aesh ba41/kq 4jiw+gf 4ll 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 jq/ dqx9( n3crshown to the right with resistancen/cr3 q( xdjq9s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 9nnzo nn*j/3v resistors connected in a combination3nn9j v/n *zon series and parallel 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 below shows five identical resj1 r- kdilc22arp4k,n istors connected in a combination series and2ip 4arrkl 2-,kj n1cd parallel 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, a mze9hu72s6k7rkiq 4,swkcr5 ll of the bulbs are identical. Which bulb will be the brk6m7w7 usk z,reik295ch q4sr ightest?


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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,,4k;)sy3nq6fi c y,t lwvt+hk a switch and three resistors are connected as shoyk ,;clint4,h)v3+kt f6yqws wn. 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 am18nt:myq;e9 p/t2w ssfrf qd, meter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rem eynt ,2:8/d;fss1wqqpr t 9fads 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 resistors are 1/9,cupnji +feygu y2 connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amify+u9y 1pen2ug,/jc peres.
When the switch is closed, what would be the current in the circuit?


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