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习题练习:.Resistor.

 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 (4m efkm wpcm1rx1:.b electric current exists in the metal resistor connected to the battery. Which one of thmpe:k(bc1xm w1 fm .4re following choices best describes the direction of electron flow through the resistor 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 ay evl 9z3q0m+7; oposin parallel, the_________each resistor +o3 elm;y97spvoaz q0is 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 filament wire of a lightbu 7mwjep3k7 qus85zi 7.1niojh lb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This hisjhw 1 o 7pk5.in7 378zumejqappens 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 x ciz+m1b,es+ replaced with LEDs. LED is the acronym for which one of+1 ixeczs+m, b 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 resisto 7wn/ 3,z+8rmy jkmqr+p*wtrw( t isy8r has length L and cross-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 new resistivity to the old res(+qm w,t p+jw8mr/zynt3rwis7 8yr* k istivity 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 t-97c hli-bmqy gbe 9zbq/r)1che diameter and tw zb-q)q9emi c/7-l rh bb9cyg1ice the length of I. If I has resistance 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 materiaz iu(98h3nzz, ajctjo 14ph:c 8nv:h zl but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance hz:3,ci ocz ht hv88n(n9jz u41j:apzof

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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 materia :j8q d5a,sqvg5 kr1xjl is then:r1qadv q5 x,j8sjkg5 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 E vdioy37e, hf/bbx uz6g758ot dison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more livbub ,oyf ozx dig /h68t577e3ght 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 matyr4)p0ftd abo*m/ j4terial. The length and radius oftt y4d4)0mao*r j/pbf 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 re n fl m3(d0:2avm ajbmepg:t;:sistance 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 resistodaj0m2gpm tb :;3lv:f (mne :ar. 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 di):8kc-w- kqo lalmi9v2(lvie 5onaw.agram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readiw(ki )qn 2lw 9mke- o- 8:vi.ol5lavacng 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 th+: 86dk,g yx*zwh fld1t5ii hcaxx*c/e right. The three bulbs 1, 2, and 3 - represented as resistors in the diaw6, x+1: yhz cdc5k t*xh/i8gfax*li dgram
- 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 simplsk 9r3e.a oj.pye0t)hks7t q7e electrical circuit at the right. If the current in all three resistors irp)7k9ekhqojtae0y .ss 3.t 7 s equal, 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 repre5nsc.rd8aeoiue+l/ o, uw m048 l)kqo snm0e4sents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells,8scwud5 lo kl qn48)r/same o4moe0 en+ 0.iu. 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 followicyr3p. o4 :jims 9zf3bng statements is NOT true concerning the simple circuit show:9yfr3j4zips o. mb 3cn where resistors 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 t6s6e3bzexh.. ef5kea sc fi)a3ky 1 +do a battery. Bulb X is brighter than bulb Y. Assui y.fbkzaced366k5s1+ exa e se)h3f. me 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 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 the identhudb - x813skyified resistor in 5 seconds kd- shyxub831 once 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 circ xna*,l af8)-queo09nq vz5bouit have the same resistance, which05zo8ev -uqol qba)fx*n n9,a 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 cige/f j(:pp2oqq.473vamro h wa+v/q k rcuit diagram, the current through the 6.0 Ω resip4e3 fv7gaqjhka/w.poq qv ro+2 :/ m(stor 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 in srnn gykmfoy( 6e/i v/t:wb2cd,/8liw4ch2 r (eries 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 across R bi6 r nd2mtovkwhwc/4(f cli/y:er( ,/y8n g23?

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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 ar )vlg74mt-u x h4njage/ :ir5ke connected in parallel to a battery. Suppose R45le) vi4/uhaxtrnm 7:gk j -g1 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. Whoii1fy0al5f 0m9gnu7a3vg5 zat is the maximum value of the currev5fz fg a giy00o7 a351n9umilnt 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 re7st9e:urmbg wge8 2cr .,wrj .sistance of a 60 watt lightbulb designed to operate at 120 vws:e,9r7u8r .g gm. e2wtjcrb olts?

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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 ohm rs-bdt;o-s ovid kk241sma8 v,esistor that is dissipating 36 watts ofvs 1kk8dosim, --s;4bd vot2 a 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 marked "120 volt, 600 zqvj/g z)es+: watt.” In normal use,szjq v+:)z e/g 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 circuixzhih73 1wp-ge 2dy; et containin-dp2; g 3ehxi7y1hezw g 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 of to 5 3r;oxtjps v/fxkr -e(g4d5z5+uhehe following equivalent resistances CANNOT be pro(j-ruxeskg5/5xvo +pd3 r;h fo t5ez 4duced 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 togetef6o5nj1 s+ a 6y3owjiher in different configurations. If all three resistors areyjij56as13+ w6o ofne 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 a battery, a total power P is d jvcaz3v jo1jf12j3lp 1gbhj4g) kj,2issipated in the jz1vj)p,4j c1lj1 hjgofvga3 3jk22bcircuit. How much total power is 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, havibqeg 8ku;aah,ez/+ax.q6 ,c u ng resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is;+c,.z bxa,6k8eauqeqhu g / a 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 resistance of xv-xc v1p)(h-nz3jle12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg o v1cn-x -hv jpx3)lz(ef 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 dissipating 36 w 2fx1,qz jiy;mvd 27zwatv1fjd2z; ,q2im xwz7yts 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 of current when connected to ++me8 soai4rd0qnym 2 120 volts. Ifyreod0 4imnm8+qa2+ s the 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 m3s.:ajx;mpjh68 zfg9 pu6gfs uch would it cost to keep a 100W lightbulb lit continuously for 1 year at a rate oaf6p;f:gpjx .jz8shg693m usf $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 4.00bo e.+,okga*1f v/rdq k:c ;ix A 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 o kbxkdi1+ ;: oo gf*ca/q,rv.ef 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;sebcre;ovf143jb s1 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 fus evs 11;co4e3f;j brsbe, 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 resistors to form a simpleb*se 4nre19pezl6f wnr-o y,- circuit as shown to thn4 pf-rzelonws*1e-9 6,br eye 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 ,tqg.fmvn6e+35bigj y p7h3fzdar90to four resistors to form a simple circuit as shown to e.tz,bfgf6ynag0 7 r 9 pmdhi 3v35+qjthe 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, ap ,j0jc(.b dccn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. j0dcb j.cp c,(
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 resispgg.3,dw e k,gux6(yktors are connected as shown. With ewk6,,d (g ykug3g .pxthe 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 swi7ygt*t92y wvatch and three resistors are connected as shown. With the switch open as shown t7*ygw 2at9 vyin 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 x+ m;m6cshd+ q(p f3vhff2p7 uto the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, a7m6fsu2cd3xq+ +;ph v mpfhf (nd all 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 resistf8 / p,cfa2ew1f td)etkv2ds41 2q plvance of the circuit shown to the right with resistancesfe,18 dqk)/ lwvvct2 12p2 4da ffstep $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identicaoeban (:wtv5z0-ze m4l resistors connected in a combination series and parallel circuit to a voltage sourcee nm-zt4woeb0 :azv 5(.
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 cob+0 5jrnuvng5f6u zjt7wth3 .mbination series and parallel cthjb0rnfj 57 tv uz6 uwn.g+53ircuit 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, all of the bulbs are i l;h( 1kiv4 7zsqbhmi2dentical. Which bulb will be the brigzh lhmski2i14( b;q7vhtest?


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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 l4yqzl0s7ela7g vo0:, a switch and three resistors are connected as shown. With the switch open as shown in the diagram l7v 4 gqys7z0aol el:0the 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 sw28jn slgv7sn/ itch and three resistors are connected as shown. With the switch open as shown in the diavj2nsn 8slg 7/gram 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 ideal ammethvw -klc q.1*pfx6r4jer, a switch and three resistors are connected as shown. With the switch open as shown l*v1h kjr.c4xfqpw -6in 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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