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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 elex vbymqa+io2-4f /st ,ctric 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 resis+ y2vq,mbti/4fax o-s tor 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 in par2 rcus2pj6 4hkallel, the_________each resistor ju2hsk2cr46p is 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 th +uv vhm0mukbe8q1x: / aob:0vin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected /0: uaevbk +umh8o0mvbqx1:vto 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 is the ayc)kavyzn 2p(g ;+b/s cronym for which one of the +cg( )a2yysz;kp/bn vfollowing 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. yh0md.e ch0dc p,ya* :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 resistivity of the cylindrical resis0eh0h. y ,d:ypc*dmcator?

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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 ma5o0pf psi7 l2n0 v:/y3jj0fy( f gqefhterial. Wire II has twice the diametl oj:(hf0n v5 y3 y0pje0spqif2/g7 ffer and twice 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 material but has twice the diameter and hm. / pdnuhe+*1crcx/ialf the length u/ h r*ipn/xemd.cc+1of 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. This piece of ma(zhvvh 6 vnh,+terial is then drawn sozvh 6v+ vhn,(h 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 Thomaa4j( ab lq)jk18:ljt ms Edison wants to make a brighter light bulb. He decides to modify the filament. Hl1 (:a akm lj8qtjb)4jow 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 arejj, (-0ex hxpbq g,,kf made of the same material. The length and radius of each res beq(hxpfx -j ,,0j,gkistor 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 battery in v( mvh*h1o2s kthe following way: “Two resistors ars kmvo2 *h(1hve 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 accompanying circuit diagram has internaj8uqqybd ke;o). ya /)db)+ccl resistance.c bay q/b)+dcuqdy o8))ekj; 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:


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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 n 3ea,h/p x( m1f;aagkthree bulbs 1, 2, and 3 - represented as resistors in the di;axk me, g 1p(/af3ahnagram
- 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 aw9r c;vdg+ui.w(hqk6nu)a l1t the right. If the current in all three resistors 6nlq i w(vk+ua9cwh1d;u).rg 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 righ-:(.y(d9j cqxr nh ..rwdjdqrt represents a simple electric circuit composed of 5 identical light bulbs and 2 flay x :(-rh.n d r(qjc.wqd.r9djshlight 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 statements is NOT true cm ms3yozm,umb, 3urt6 d.ehw 7)u (+ os2hx*hyoncerning the simple circuit shown where resistors R1, R2 and R3 are havmoh wbuhz(y6u7o, dh3usm,sm+e x*2tm).ry3 e 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 i/j-*ps /bdqlare connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements ai *p/sqbd/jl-re 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 identifihf 0psxg5jrufrb9 41)ed resistor in 5 seconds once the circuit was closed? h59fp jg4 ubs0xrfr1)


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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 eya5d/fro8 o(following simple circuit have the same resis8 oy5a( oref/dtance, 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 accompa+*df v z;p.x jj+c +vwujyilk;u q044ynying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply vok4*xf+w.p vvyzjuu; ily+ 04cdj j;q+ ltage 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 ;ocy.lkma+vm 5 20; lmuvs9kyconnected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, as 9luym my2o.05+kc;l av;kv mnd 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 are connected in parallel to a ;w (8b ;db .ilan4 ab+xj/i,qaxjq/oubattery. Suppose R1 has 2Vbb q;jo/adan4q i l(ax u/8.,bwxi;j+ 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 ty / 9abn oqrs5szlp+) sp*,q84k s.jyvolts. What is the maximum value of 4q)9p ,qsot pjl+r*5y. /ssnsbkyz 8 athe 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 opera4wx y3k0s tpf of(o-s(te at 120 v( fy0s3wtf- 4osxkp (oolts?

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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 resistor thm54mh;i*ysxx at is dissipating 36 watts of po*5smx4xm ; iyhwer?

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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 "1206c wwk*s-ool8 volt, 600 watt.” In c ok-sw6o8wl* normal 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 could NOT 8qrdf /e:)ld-,4s5re pjstvnbe produced by a circuit containing only three identical 6Ω res,4ee/ j)tsvnr 5srf -dqld:p 8istors?

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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 thrwhdde(/ ,t/rmh 3m0be following equivalent resistm h3 r(0bwt /mdhd/,reances CANNOT 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 resistorsy6 v8rbp ;o+d xn) sc0atcht3k+*lkm- of different values can be connected together in different con+ yhdplbv;sax)0m3c + ctk8*nrk6to-figurations. If all three 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 a battery, a total power P 26stn ( fo1zr9e qpu;a;nr48l.xl xktis dissipated in the circuit. How much total power is xlpftr19zu6s. aq8 e;(k 4x2nlor t n;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 resistance R1 and R2, a u15skex, p +dissuj,-re connected in parallel, the equivalent resistance of the combination ju sx, sik- u,dse51+pis 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 thatj)zvo jp8q2by) 5 k4ic +k1ali it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg ofjvcz+1lp5b2a8kiy o ) qji k)4 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 dissipatp/kilx9 c+2r(l)t/ m.rilxg 1a utg +fing 36 watts oflfr xplta+2 uik 9tx.cg(mi )g//1l+r 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 connecte-k 9dr) /oaj(d/n/pxzat gi5qd to 120 volts. If the price of el/zj( aati n)/5dop g9qd/xk-r ectricity 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 oxxpi 7(,y3i0ui7qh1ms0sr q to keep a 100W lightbulb lit continuously forsx17imo 0,ihi0yrx3 7(qup sq 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 results in a jj b8ba1v.1i a oyid09power of 24.0 W associated with the bulb. Which one of the following choiceo1i jab.8bjia910vy ds 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 co*o wfw +a8qk+h8lk2w dmputer rated at 500 watts in a 120 V circuit. If qa2* k oh+8wf 8wwkld+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?

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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 cons/zw0 kb0j(cp+rtlg(nected to four resistors to form a simple circuit as shown to z 0twp /jglb 0k(src+(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 four resist.ie c;l zi1punl3fi2j:k4l5u ors to form a simple circuit as shown to tii zuu ;1li3.:nlf ck25lp4ejhe 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 three ruef xiry y633jt 88wow.vt,w/esistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampe/ vywit3wr8 txwy,j o3ue.68fres.
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 battery8z2v4z-1nqrlh mrg *z , an ideal ammeter, a switch and three resistors are connected as shg1rzlmnqvz 8 2 *zrh4-own. 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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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 resistorz u)vzq- m/,hbg ptf)tv dk)..s are connected as shown. With t/ .)qzuvv,mk)h tzdbfg).-tp he 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 equivalen96dlo 8do-ztxt resistance? Assume that all wires are ideal, the battery has no internal resistance, andd 8 9xdl6ozt-o 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 res9 vml(5cr0naj istance of the circuit shown to the right with res(n9caj vl 5rm0istances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resis8 :si+cozg8gi +b/h7sw du2 ootors connected in a combination series and parallel circuit to a volt2o: g wisbc8+/8s7 i+ouzgoh dage 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 res(z6fh8ljj;z az6 8 zr y,,pzmdistors connected in a combination series and parallel circuit to a voltage so j,p,hjyzrdzm8 zaf8 ;(66lzz urce.
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, al3.qzel:s7. fxhy7ny/gk y es- l of the bulbs are identical. Which bulb will be t.3q:hyszg. 7e yeyx /fn7-l kshe 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 and dd 74b-t+si 1fv ho;pbthree resistors are connected as shown. With the switch open as shown in thv-;fp7 bd hsbd1o4i +te 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,xm6xywt./ + rq an ideal ammeter, a switch and three resistors are connected as shown. With t6. wr+m/tx qyxhe 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 ideal ammeter, a switch and three resistor(-9 b-fi wueaps are connected as shown. With the switch open as shown in the diagramae9-iufpb-( w the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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