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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 resistoril)i n/t ,:s2mo srrs1 connected 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 interisrm tio/:)l,sn i r1s2or 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 pa 77 bltp2t q uo+toerc/t1v+i*rallel, the_________each resistor is the sat 7etb21+i/rtq+tolo u7 *vpcme.

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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 c9z3ep f7.mz tnauses the filament to become white hot, while the larger wires connected to the lightbulb remain much coolernftz. 97ez mp3. 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;wvml.dp hfi 82rc n;( LEDs. LED is the acronym for which one of the foll infm2vrwhd( .lc8;;p owing 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 crosle 3sor6 z(xr9s-sectional area A. It is to be placed into a circuit, but it first must be9ro xr(lz 6se3 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 matevt0i-b yybmf4tps(+ 2 rial. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resisp+fym- s0tib2vy4b( ttance

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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 tqgltwpmj*) n t5 1p7 up(r 0f1ftw3i-twice the diameter and half the length of wire X. If wire X has a resistance of R then gw3m5 ntl1)p j1puqwftr7t -itp( * f0wire 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 pf7-mpty m0j ;y z4jbrqd9 ; 63osj1)voh r3vtziece 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 dj)3s 70zy9b-vpmhz;mo43 1 tqojfrtvr;j6y 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 e ;b 23ld lrq;r1-dnyqbrighter light bulb. He decides to modify the-l drn 31 qld2qry;;eb 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 w ujn,aeyt +4+of the same material. The length and radius of each resistouw +yan te4j,+r 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 R, are connected to a battem5skh 67yd d9/qaw6ga dulm( ,ry 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 6symd,aw7hla (9d u 6qk5mgd/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 8mrhx*3k.y v7x) .djkcvt ca0has internal resistance 10.0 kW and the ammeter has internal resista 0tyh). k8mxcxc kv.d37 a*rvjnce 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 three bulbs 1j r (1 zw6g7(2wz nrwofh5.vxom/d0r i, 2, and 3 - re/r( r7z.mo20 fdnv(iwwx wg1o5rzh6 jpresented 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 all tjxpd.z;z8: *:em ukpve7j. grh:8mp*rdg:7kuzxj; .eve p .zjree resistors is 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 represents a simple electric circuit cork-7 )xd5los smposed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or ) dk l-5xsrs7obulbs)
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 fnl:*bj2axe r3xvk;c +-kwmm reec ;m2o:1 d2xollowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are ha;w2x 3e mkv*elj-m; b2mxkr2: dxa1+e r:cncove 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 Xrh)lf6ex/2 kh 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 follh6hr x2l/ekf) owing 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 identified resistorcpp/ oo.oh:+d in 5 sepdop o h/+:co.conds 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 circuit a rqxu5 q78jy,have the samqu7jr,q8y a5xe resistance, which 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 current through the 6.0 Ω :tg pun+ypwdx +n:w53 resistor is 1.0 A. What is the nwu+ d5+ytp3npw :xg: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 conn5ty1vo mveb0 i -md/7mected in series 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 voli-51 e 7vy/ btomd0mmvtage 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 are colphu ggc wvk+1h*m4gy,b ; +4rnnected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the+1hb ,ymg rgghpuck lv*4 w+;4 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. What is the maxim+k g3mbm-t2on52mp3cd z*t nayzlm ;+um value of the current under theb+-m3 5lcgmt* zd+2n ap myt;k3zmon2se 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*aw tto+g 9ar2 designed to operate at 120 vola9t+wr *ogt a2ts?

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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 44jn (ge:dcffm5rh g ydsn/(; through a 4 ohm resistor that is dissipating 36 watts ofjdg;/md4nnh4 (c: 5(yffsrge 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 d9agowq 5;3icu)fb j7)eo g(kclothes is marked "120 volt, 600 watt.” In normal use, thego(oa wub7ik c3d;jq)5 9e)fg 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 8i68+hae mlrd -ub o7oproduced by a circuit containing only three identd6a leu8h7mobr-8 oi+ical 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 equivalen si0v9z1 h.loii b1wuu x04od8t resistances CANNOT be produced using.bi0zdl98v ouoi xs14u h i1w0 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 differendhtmlutb;,s( ;:9 98 pywwlhnt values can be connected together in different configurations. If all three resistors are used in a circuitp 9,hdnt8 h:wul9ty lm;(wb;s, 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 connectew y2pq1t1cas3d to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resi cs 1q2wtp31aystors 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 resistance R1 and R2,s iks8lbuw i)+m+ o3w (t5.ada are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is coi 5lakd(.+si8w wom ) +stba3urrect?

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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 isb5qiyx(q85m1 .mr l hn designed such that it has a resistance of 12Ω when operating at 120 volymxb1r8. 5qn5 (miq lhts. What is the 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 current flows through a 4 ohm resistasr 5*0jq1tve or that is dissipating 36 wat*s1 trjv5q0aets 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 heatekr sg79x/m57z; aqjxj3u rg3(ch:oyir draws 13 amperes of current when connected to 120 volts. If the price of electr;hjzr3 g(ys cmxgja5i k/or 7u3x9:7q icity 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 100W ligh ecbe +)x3yuc,/c4 cuu47keg ptbulb lit continuously ec ucy,uek xc)u34+e4pgbc/7 for 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 xz: f8o4s*tdn 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents thed4xoz8* n:tsf 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 rated at 500 watts in a rb), rsck.c4 )rizcn9120 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 s.cb n)4zcis)k cr9rr, ametime?

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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 ubntvr;k r4i)5u36kyg ht (-bto form a simple circuit as ;rr 3t( 6)4bvik ybtug5hukn-shown 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 to fy /aqwal x))l4our resistors to form a simple circuit as shown towl)/ qy a4la)x 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, ankd fu-y/vu8i bfu+4+m2ohg y6 ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2. b64odk/fm++u f-ugu2y yvi8h 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 e6np j/qtrr9umcg 44qbc +2 0c+ jwl;aare connected as shown. With the switch open as shown in thjlup/tca;n+mej0 qr 4c 4+2gw 69qrbce 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, oj 7h07wo,f haa switch and three resistors are connected as shown. With the switcj0 o h7f7hawo,h 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 t jy(izz6 ng*ue+ : b)(eaq7dsto the right, what is the equivalent resistance? Assume that all wires are ideal, the batter6qb+(n7tiz( :gyds*aezj )u e y has no internal resistance, and 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 resistance of the circuit shown to the right wichwbc+ 6 us7n4 znowg,a:y;.mth resbyozw;c+.6:, hms74 anucgnwistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ide,q om8- yr;bemt9k) rcntical resistors connected in a combination series and parallel circuit 8rb,;rocy - q memkt)9to 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 combinati4er7un .l9iqkon series and parallel circuit to aqiuern7k .4l9 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 4cy)f,kvrstb-6: vy 0 brb;m+ ong/mk of the bulbs are identical. Which bulb will 0st4o:kmvyv mr6cg / nbyr);+b fk,b-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 amm9.izltqcrbr8:.w o)p5y;dg +pgor0leter, a switch and three resistors are connected as shown. With the switch open as shown in the di q+ )zp9ggip:ctl 0dr 5or.w8y;r.lobagram 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 ammkjbasl8nq* k o7 c;9q0eter, a switch and three resistors are connected as shown. With the switch open as sja0 7qn*koqc8k 9b ;lshown 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 ideal ammeter, a switch and three rj/c27)+enpp9z) g y . dklynpxesistors are connected as shown. With the switch open as shown in the diagram the ammeter reg ypn2xpyjle+/c .nz d9)k7p)ads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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