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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, a oumppn1.;5 ,(m4uks penhe6wn 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 the direction of t;uk (4np1ewpoe6mhu, m.n 5pshe 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 parallepcvha*z1+n6 jgy vt4lit 4:+ xl, the_________each resistor is the vt jxy1itan :l*4v64 pzh+g+csame.

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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 pbc 6w 1xr o- yyeli4vk;,9c9xlightbulb causes the filament to becom xx 9io1ey9b-6lw4y p, cckr;ve 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 are being replaced with LEDs. LED 4c4t5nr,jupa kwuo y-2; e , yg6thu8vis the acryr-cg6a uny 2wj e,8 54 h4,ouu;tpvtkonym 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 c,ci)qkqn, rqn/t2 o +wm p;d,cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that the ne,n c;nrd,w)c qp/+qti ko,2mq w 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 ti ez6aq6qvfy/-lx7 ,7 kya9dm he diameter and twice the length of I. If I has resistance R, II has resistaf-y6,al dimv ez77x/96q kqa ynce

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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 sam ;dnx 8)zren+/4uxy mht6*s ose material but has twice the diameter and half the l 6zsn/ +ex; )8mxy4nsrohd*utength 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 length L and radius r. w5u 9;8(e1stmu0q cxda vjeo/This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistancjx ;v cmt/0wuu 8soe1de(aq 95e 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 lightr1iv9 *9ijd-lwpl.rg/ydc xwguz(h3/4 bu- c bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the /yg3br u4wdw 1i-x.rll cd pjvugi/z9h* 9(-clightbulb 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 cylindricxr zb;ff.;* 2h wim:djal resistors are made of the same material. The length and radius of each resistor .: zdr;f2; mixh*fjb wis:
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)3/szuz iv rvjqq+:t 9 to a battery in the following way: “Two resistors ar/9jtz+3 :u zsrivv) qqe 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 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 accompmt1;(8whj7 l h /8lq vg:ddznbanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearly z1 ;(l7hj/vnhw8 g dbm8l:qdt:


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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 pwnh-hhzc+8, shown to the right. The three bulbs 1, 2, and 3 -z-h8hwh cn ,+p 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 the right. If the current in allutjsxu/s eqd)/uw3 20 three resistors is equal, which of the fd/utu ss2/xj)0u3ew qollowing 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 simpts;j r h efw, 57zzv/2wszm.z,le electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bul7 ./mh5 vez,t fzszr;2z wj,swb (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 simp2;uyasj*:rudd cf(r tuy8 fau; 9ib16le circuit shown where resistors R1, R2 and R3 are have equal resiiur;b:uca1ry;(6dfj8 s * auty 2f9dustances?


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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 an n; qg2ox fcnea5q tli9.qzv63pr*d33dY 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 wxdczqnq2 9trf.3ivgn5 ;ao6e 3p q* l3ith 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 will0d xkwa8ku5y( pass through the identified resistor in 5 seconds (8yw kkadx 05uonce 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 circuit have thecwt+z7*sb 3 ;:ztk gze same resistance, which would dissipate the greatest pow+ :zzctge3*s wzk tb;7er?


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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 diax+ebm5 g+ qv d16xzcv6gram, the current through the 6.0 Ω resisbx5+zc 6 +qevvgmx 61dtor is 1.0 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, and R3 are connected q z/lv, 9xuf/ain series to a battery. Suppose R1 carries a current of 2.0 A, 9v,zaql/uf x/ 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 resistors R1, R2 andR3 xf u(42j .ww5z8uvu aeare connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, x42uauu5wzef.jv (w 8 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. Whah(yj ,g6l g.sft is the maximum value of the current under g(j.fygl6s,h 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 operate at 1sz e+r)9kcll 120 le+)s z 9kl1rcvolts?

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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 tj+g9ljmkjk-, -qsgl1 hrough a 4 ohm resistor that is dissipating 36 watts of po g,lj9k -sk1gl+mq-jjwer?

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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.” l*u/ewe n /wc 07:sh4t87mnjw w7 uxnwIn normal use, the current 40xuw * w77 wsenwhm nn8w7t/luj/: ecin 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 mmv(1x6 rv /wba circuit containing only thrvx/b 6v(1 rmmwee 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 of the following equ wyj7 7mum.qg8ivalent resistances CANw .7uq8 j7mgymNOT 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 bed l*--)qqluyf ayzw z j49y47c connected together in different configurations. If all three resistors are used in a circuit, how m74f4y y*djll wu c9a-qyzzq)- any 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 connectq7mfqf*- 6v swed 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 m-q v fw7q*6sfsame 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,,:0 q wvqel::ar*fwbj having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the follow:qvql*, wjbr0eaf w:: ing 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 resistanzl:el4/a0i z bcl)) xice of 12Ω when operating at 120 volts. What is the minl)abl ) 0lie4:/c zxziimum 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 ohm resistor that is hcvh31 erik16e) 0 b1rbyw3un dissipating 36 watts ofn136 3yih vwu h11 ee)rbrkcb0 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 b t(,bznu3 82rg5jibh amperes of current when connected to 120 volts. If theu8 (zt b h5,ri2gjbb3n 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 04fqhs+) zc f(wxm7oy100W lightbulb lit continuously for 1 yf+fms)xw4 ozh( y0q7 cear 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 Alo b9wpnhr l:ux+3 r() 8jzs/4svta:d through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lighjp)v wn+ :u(ob:/ 4stx9l3d zs rralh8tbulb?

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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 f*vca7* 3 vsqeoamily 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 tsov* q cv*a73ehe 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 resistob4mr1ghs84c zpf08 ql rs to form a simple circuit as shown to lz4b p88s1gr ch4qfm0the 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 toi-n 19 zy9r/lbotge8f four resistors to form a simple circuit as s1l/trin 8gb-yze 9 of9hown to 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 th ag /edzff8+w- edz.)m3,nw zfree resistors are connected as shown. With the switch fe8mn3,+waedd z)- ff g /.zzwopen 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 are c*rt ncp77h gq0onnected as shown. rnq* 77phtg c0With 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 2hoeda7t kq ((t 3nd+dswitch and three resistors are connected as shown. With thedah2 t dtdqe+(o7nk3( 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 xa9x3 18gjubd equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistor dg819uab3xj xs 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 /fdc:vj6 3zwdtekl2 i -d)ql: the right with resistakvd)2 :el3j fzl t/di-wcq 6d:nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combia(s 4g0u 3-lshos bhual91zt .nation series and parallel ch0su4-h1auo l3as g(9z . tblsircuit 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 resisp l rxzbu.u38mwp.0wxa-)uz j9q+p1 e tors connected in a combination series and parallel circuit to a voltageq-a 9 )+wp0 z1u w8.3xzuebxrm.lu jpp 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, all of the bulbs are identical. Wu, te rl fy;3dd p.4tefu+xy5+)lh9fahich bulb will be the brfy+l,5lxyaf4u d;. uepef3hrt+)9dt 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, a switch and 6dgaf5f0 6iw(ct4wg+h k0qe nthree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amgq+5f6hwi t04ef06wkn ac gd(peres.
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 and three resistors are rkrze- v0dv 61gzo6o; connected as shown. With the switch open as shown in the diagram the ammeter reads 2.d0 rzo;ovez gvr6-6k10 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 an02zuq *el :,-u-nzxisns+uvp d three resistors are connected as shown. With the switch open as shown in the diagram the,+pq:esz-2s* uznvui u n- x0l ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


参考答案:    
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