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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 reenu-02qtl bv /sistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction ou-2l/ t q0venbf 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_________each resi f2vx2h *p0yrdc-ta5sstor is the sat2ps 5df 0ayxcr-hv *2me.

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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 filq5l jdmx7a :5eament to beca5:5jmlde7x qome white hot, 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 arzvwo 56vo-xyls5 d:(re being replaced with LEDs. LED is the acronym for which one of the following cho5 :(wo dv65vl- srzyoxices?

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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 A4t4 l 2yzo.faa6o znu4. It is to be placed into a c2 y.lzut4a o64a zfno4ircuit, 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 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 material. Wire II has twice the drp llceq85 he+w6pppa ;l,;k* iameter and twice the length of I. If I has resistance R, II has resistancek+,8pe6 lhcpwq *5; lplpe r;a

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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 madel(-(qjk(gbhgbwe b3)8cg z6b of the same material but has twice the diameter and half the length of wire X. If wire X has awz l 8(h-bk g6bgqjb)3cg(e (b 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 resistoh-cq bj: w-he0r 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 rescwh-j:bq0h -e istance 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 Thomsvs 5.q9q jii7nwwm77 ukr,/ias Edison wants to make a brighter light bulb. He decides to modify tj. 7uwim 7qni /5vqw7i ,sr9kshe filament. 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 the same materid0 hi qpzm81y;)r k.pwal. The length and radius of each res )kdhip0z1wp;qy.r8m istor 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 resisucm0 c* vej65dtance 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. Thi60 u j*vc5decms 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 coeh/ p5k2i9rr q bosn,dtf*u-ye 0n.)ircuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The am yh qu,os d9)5-ri b/knn*r.p2e e0fotmeter 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 three bua o9z*a x;am6albs 1, 2, and 3 -x ma69aazo ;a* represented 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 qnozez 7(0w8mta eb,( the right. If the current in all three resistors is equal, which of the aq7zmee(o tbn w0, (z8following 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 eleccf s4asq3 8;mctric circuit composed of 5 identical light bulbs and 2 a43qsmcf;8c s 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 sthmhrb8 ka4caya43nm-h57o :zatements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are h nac4m:4ha7b - oarhzmk835yhave 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 lightbulbs X andY are connected in sernh;o; n2vx ;5cioj 1lkies 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 cn5 n;olh 2ki;1j c;ovxhoices 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 avc9szu- s+- w through the identified resistor in 5 seconds once the circuit w z +wsus9-v-caas 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 circuit have t ) +1zwh,ku3cljzt8mh he same resistance, which would d1) cz lw 3+hmhu,tjz8kissipate 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 mwgo- 9vb wjnu125bd26.0 Ω resistor is 1.0 A. b m2wb2wdg9v1u5n -joWhat 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 conn 5 ssig nuch-o;fyaj oo:-d-88ected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 disg-ohfo-y5 oincsa8 j ;-sd8:u sipates 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 /0b lc/t b fgmf*)3+ zfmgaek3andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What3+mfcakfe/ f mgb* lb30/)gzt 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 120w+sgo dtdu-7u7p 5p ;s0 watts and 120 volts. What is the maximum value of the-7du;dogt w7u5p+p s s 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 to oper,mjmy)95 oz4uy7 xk :ivz ft0late at 120 lfz,i 4j vym :k0579y)utozx mvolts?

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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 ohm4i d zde8f6 ck/ rte61w(c*d;uuuw(u1lht *rp resistor that is dissipating 36 watts u1p(cr4kd*;e /t wew66d*lh1cuifrutzd(8uof 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 pr(-s tesgb5r6z ess clothes is marked "120 volt, 600 watt.” In normass e56(tzrgb-l 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 h4 xw01hf b1 ri(*b+rgdwkq3 tcould NOT be produced by a circuit containingqw1 w3(rhigr4t0b1 hx dbk+f* only 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. Which v th.m/ g7x*lroomo95vw i :8iof the following equivalent resistances CANNOT be pro mm 7 v.vgxt/w5roi8o*: lhi9oduced 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 togezwl(gth 0l 5j*l h8c-dther in different configurations. If all three resistors are useg5hlh tzw(jl*c08ld-d 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 connectedem)z:jhyk*jf +6qn2; s4atmt to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identicanq2h* :ytja+4mk;6tjem z )sfl 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, hak*dl,mdd uwif.2y q4(ving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is corrqm,l*2 y4d wifdu dk(.ect?

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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 12Ωx)z sbb ws s)eo2l;k*7 when operating at 120 volts. What is the minimum amount of time that it kl;wbs)so*x z2s)7b ewould 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 currenthz+eyz*c bg0 4 cn;;u)1zzkcf flows through a 4 ohm resistor that is dissipating 36 wattku cz01fzgeh;ccn+b;4z)y z*s 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 heater draws 13 amperes op3wv, 9evkl h7f current when connected to 120 volts. If the prichke7p,v3 l9 wve 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 1g*+ oht0aofq(79jwh f 00W lightbulb lit continuously forohfq0h(9jg to*+a f7w 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 resutwew6dcjfq s4) q(enue(*.(b lts in a power of 24uebe q(cd.6tw n 4 w()fje(*qs.0 W associated 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 fy j1490w hyegs46.vhq6pcsf computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single cirq4 4yv6fy06 hcs . 19jsfpehwgcuit 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 resistozhaa 5c6xau.( rs to form a simple circuit as shown h5z6(x.aaua cto 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 batt,ehgs jn*cux1cz o-4 z;.al 1gery is connected to four resistors to form a simple circuit as shown to the right. xczz ,sg-eg.nl ou4hac11j *;
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,3l-n ee -uyxh7 a switch and three resistors are connected as shown. Withu-ye e7x3lh- n 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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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 resistors ar+kt*k1:cc3ah uxcbyr67j. t xe connected as shown. With the switch open as shown in the di+7 kkc.huc ybr:j3txa c16*txagram 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 ammet-96d wpeex;n ter, a switch and three resistors are connected as tpe-;d w96xen shown. With 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 the right, what is the equivalent resistance lle(8j 9le,tctdf6*s ? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resist tesd,jl 6c 9(l8lef*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 the right ):gqte j*a-gq:t6k8 +zcvt ic with resistance:6qc q8+t*t vc ga)ejtz -:ikgs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectn( at+z1jlcwie1ja0y;gih3 1yiat (* ed in a combination series and11at (inj(i giylz+ et *jh01wayc ;3a 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 idgf1os/;cd u6 fgogz 2wv. 5eu,4n gro*entical resistors connected in a combination series and parallel circu.fgo 1 ;znw*c6 o,s4o2gdu/g vfre5ugit 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 circ9qzo/7 k uncz+uit diagram, all of the bulbs are identical. Which bulb will be the bo q7+ un/kzc9zrightest?


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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 ammeteq2d 7 z9/4maf(zinft dn/ vye7r, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a fvnez /2n(zd/7yfa 7dqtm9 i4mperes.
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, akld7r3c6fr8 f(7dq w) zv:bjn n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown inqrd6w7 dfnz b3vfkc)8 7(lrj: 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 batteryvga i 3oi3e.xayl4i;, , an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the avi,ag lie x.;3i43 oaymmeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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