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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 s/ ctsu eht k7mnib8n ct(0n8l zr7f4-88b+yff hown, an electric 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 n+cn 7tsfhtnybm4 eb urz87 i0c(/ fk8f-t8l8 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 0zpn(m)h(xho are connected in parallel, the_________each resistor is p0mno (hxhz( )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 thin0bycy7v ym ds/y q0:/ nk)jnp( :ip-wy filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected tos7pq/v( ci0 y)k/pn jyywy- 0bdm:ny: 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 ats7)j3hcv* x2k uq2fhnf6 jn;f84hobeing replaced with LEDs. LED is the acronym for which one of the folloakjqons h*3fx2c j64 8;fh2nhtuf 7) vwing 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 area A. -j x;sxkq 4*t.hl/wirIt is to be placed into a circuit, but it first mr-lij/hw xq4; t.xsk* ust 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 hd *du 0mo8/punrr6bfy6 -jl-pas twice the diameter and twice the length of I. If I has resistance rpn /p6y6mo-b 8j -0f*ruulddR, 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 h3f8e-c au2uu:ku;y boqf t4*fas twice the diameter and half the length of wire X. If wire X u2u3 fyf k f 84-qaou*t:cbeu;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. This piece of m u)oo)a g;am8laterial is t) )g8ooaa lm;uhen drawn 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 z q6zuub5m)(myl 1 msar uzq) d0wm6o/y4bw89brighter light bulb. He decides to modify the filament. How should the filament of a b4( /wumsly) ayd6qb6)9zr o51 qwzmm8u0umz 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 m lm;l zcd22*od-hiv t*ade of the same material. The length and radius of each resiscid t*h zo -2*ll2d;mvtor 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 otmc8azirx 9 852q 8qn n9vei)R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in p8einqa r)c 9nv9 tzoi85x82m qarallel 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 resis/whbs 2xat4 1dtance 10.0 kW 1/ 42xdtbasw hand the ammeter has internal resistance 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 cih6tec bo;l*- drcuit shown to the right. The three bulbs 1, 2, and 3 - represented as r;c6le -h*dbotesistors 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 aof 5i8 (84qune9zprnkt the right. If the current in all three resistors is equal, which of the following statements must be z9 urpnfe8q i4k8(no5true?


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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: yq3) :0figlxdii v/q right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whichfid:/i:q xiy) vg0 q3l 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 the simple circ: uri +c0;xj l8mz b,umav2+pu8l +pkyuit shown where resist 8 li0,rumky+mabp+ l z uuvpj28xc;:+ors 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 lightbulbs X andY are connected in series to a ba8 da euz16ug+7rjh*vi6rf l+jttery. 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 thdea8j gjr*u+r6+uhf16ilv7 z e 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 through thendu0-svirk:.bv 0n)jmbb:,p2k yx 6 t identified resistor in 5 seconds once the circ n 0, ru2n::k0vi bj).v6kxbs m-ytdbpuit 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 wlt q8mff86s 27ecq9c9,r. byfl-r xiresistors in the following simple circuit have the same resistance, wh 8.7im-2l sw,c6f8frbf9 t9qxce l rqyich would dissipate 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 curra ;kkeov;iam d+bd88l)3w 2ohent through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V?+k;ambwhavek8; )38il2 ddoo


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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 serie(dlk mu9qu(.5.er5p qvvd,o g s to a battery. Suppose R1 carries a current of l5 v9d.m5v(duo(rp.qu qk,e g2.0 A, R2 has a resistance of 3.0Ω, and 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 resist8 c+42lu yvmgtors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω,42mcgyuv +8lt 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 watnc8u-2 )qgfl09l0wg qda h,bd ts and 120 volts. What is the maximum valdq 20bgf ucd8qg )h, lw09an-lue 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 resistance o ,dym1q;l+mhmn/dv0g f a 60 watt lightbulb designed to operate at 120 volts md; lhg1 n,qdmy0/v+m?

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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 curre r or3n7b;ohj5s5ec: tnt flows through a 4 ohm resistor that is dissipating 36 watts of5o;:s rbe3hntr 5coj7 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 is muk409 jlc 8e,tps0 yti,w e gqt*jp)l2arked "120 volt, 600 watt.” In normal use, the currentg*eqw 8u es 9jpitlj00)pt24ct, y,l k 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 2qy ec.)p3*m5st4ubvt q pb(gresistances could NOT be produced by a circuit containing only . q*ev yt2btpgp4b5cq(ms3u)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.twq 2dw (2/j exa6war10 Ω resistors. Which of the following equivalent resistances CANNOT be prod 2wdqaj w2r6w1(exta/uced 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 vav5jm7r5c 6p0 w8qaldflues can be connected together in different configurations. If all thrvr0 w pc56a85dmlqf j7ee 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 resistor is connected to ahd4c isbqa6 -- battery, a total power P is dissipated in the circuit. How much total power is-ch 6d4ib a-qs 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 re9*u r7:wfpdpm /b 4dyrsistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following st ddp*:w79y rb /rum4pfatements 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 designe za vn92o1na*cd such that it has a resistance of 12Ω when operating at 120 volts. What is thaz2 1n9na*co ve minimum 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 curregj94zj 3+ap5sngry1 l-k8gy 8j s uu4ynt flows through a 4 ohm resistor that is dissipating 36 watts of powg gujy9l 4ss -y 8n1jja5gzypk3+84ru er?

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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 1pd2uk9 b v+tg13 amperes of current when connected to 120 volts. If the price of elepu2g19tv k b+dctricity 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 costry/;yjsg ;j1l ijh re+kcv: l n,)a5x6 to keep a 100W lightbulb lit continuously for 1 y x l)g er;vn5ky6ljaj c h:1/i,+jy;srear 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 lightbulbbt me+y4zn-m:7sj xr (1lf/n q results in a power of 24.0 W associated with the bul e(bj +4xlr7z-:msq ytmf1/nn b. 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 fam,axcvbu 7ij07 ily of six owns a 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 the maximum number of the computers can be operating at the sametime,vcxib7j u07a ?

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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 simple h r0tz;1 gf3macircuit as showzr3 th;1g0mafn to 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 battery is connected t,.7sbj 8l-6j hxtjpz ho four resistors to form a simple circuit as shown to theshzjp, tljhjb68-. 7x 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 thetxks4 tud2,q3pb5 t /ree resistors are connected as shown. With the switch open as shown in the diagr,e/d2pt5 but 3kqsx t4am 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 thrmmc)7b9ek q0q1u; i tvb0r9 biee resistors are connected as shown. With the switch open as shown in the diagram the amm)i kmeqb v79crt bu9;10bmqi 0eter 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 three regmoo ls8q6,t 2sistors are connected as shown. With the switch open as shown in the o8,g6mo tlsq2diagram 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 t1lkl 8js r,+m5r)(yglmi4f 2sdjl 7oyo 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 resistanc 214djm)l 7lf8my,i(+ s ll5rs ojkyrge 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 with :tje0qg)lk f3 resistancesf3j):0e q tklg $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 consofhr/ n 9hk)q70- quhnected in a combination series and parakho n / 0qsqf)ru-hh79llel 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 resistors connected in a combinactuz4p*ya st-u+*d vq, 7.rpftion series and parallel circuit to a voltage source7ts a4pcvft,- +u pdq*yruz.*.
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 the bulbs are identi yfw3w lajf3d6kb f.hba:) x;*cal. Which bulb willfafk;. w 3w6 3byd:xfa* jb)hl 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 ann ,33*uhqlwek/ fyu9zd three resistors are connecl9kuw n,/eufzhq*3 y3ted 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 ammetehrx 01w+-5rdktppu:nvw 0 kn0r, a switch and three resistors are connected wdv- :p1kxut0wr n rkph50n0+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 ideagxnvfr*(nx5f )zrw .h/uh pw0 (5 v)dsl ammeter, a switch and three resistors are connected as shh0gfwnwx.(d5 v r)p v/)sf xn(5ruzh*own. 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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