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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 res1 g t:-bp*4qx,kcmoxu istor connected to the battery. Which one of the followingm14b- xux,oq:tp*cgk 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 qp+b+*wez o s9;g1.jz, wfqvc connected in parallel, the_________each resistor is ths+fqcz1,9v b zoq*w e.wgj;p+e 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 lightbulb causes the filam (phoiv 4::jlment to become white hot, whipj:io:4 (mh lvle 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 houhc9t 82l5hi) jn:xualww/q c(sehold lights are being replaced with LEDs. LED is the acronym for which one of the follo(:w/n wqlt )2lca8h5uci 9hxjwing 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 i,elx1jsh0 me3; js cn;w qu.8L 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 i;;3s ,chnq e 0 mw.ujl81exsjold 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. Wir ew9,fp 4 .syk9fmekms:q+s 1xe II has twice the diameter and twice the l94sypfkqms ke:wf9 sm 1+,ex. ength 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 t,,q2 hx s9c)hzs:; 5uprieo *wu5 ifohhe diameter and half the length of wire X. If wire X has a resistance of R then wire;p s9hs5h oo q*2uifc u z,w):h,5ixre 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 oo rx,*pcuxe-hxft zy91l2 .7has length L and radius r. This piece of material is then drawn so that it is a cylinder with new lengthx opc u,f tzx.lx72hoey9-*1 r 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 brighter x +1 gkabs(43u qcr p; zz-3ppxpgyr, x.)khc5light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to +uq y1 bcp5g3kpsx3k)pghazx4pz .c ,rx r-;( 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 cylindri*2w,+b xz pkhical resistors are made of the same material. The length and radi i,bwk+x* zp2hus of 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, eac+h ou7 s)wmplx*:(sexh of resistance 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 resistor. This set of three resistors is connected in series to a fourth resistor.” What is the equivalent resistance of this arrangement of f)+wxes 7phl*som:u (xour 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 intercju .h l7ut147feefv9 m pes;ov,b .e+wri;x+nal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltrb 7e14he7 s+9 l;uevvt;wpjo.,efcix m + f.umeter 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 righth/c12 ,vpdr nafss1;hbh(t :n . The three bulbs 1, 2, and n(r1td h1;vs2h hc,:np bsaf/3 - 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 simplvq9c nmiid;p;j/yr)tfm 5n* :e electrical circuit at the right. If the current in all three resistors is equal, which of the follo5; * vnyf:)imicrd n9;tmqj /pwing 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 r0fd 4qpxlif2j c2f-chci )x.df, 4; bdight represents a simple electric circuit composed of 5 identical light bul fh4 fpdcf)-cx.ildd0; 24q ,i2fxcj bbs and 2 flashlight 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 m)h s,)lkp psa7n. 6ebNOT true concerning the simple circuit shown where resistors R1, R2 andk6 abs s)p hpn).,elm7 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 if oqi0 )h5.tr,nm /qxbattery. 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 battehimin0 r ,)q/5o.ft xqry, 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 gk)we2(sy9 u 0s9/aq-iz bkcfidentified resistor in 5 seconds once the circuiec/ qg kasufk-)92 z90bs(ywit 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 h0v ow ia,(i:tthe following simple circuit have the same resistance, which would dissipate the gt,v: w(o ih0aireatest 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 thro tni)0v0j. olos j* 56x6 uywqmq1z8zwugh the 6.0 Ω resistor is 1.0 A. Wh z6jl.y s)qoww i*no zm6q8tju0v051xat 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;fqk +37 c8ybbbc go,y 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 voltage acro+c qbb,cf ;7 3yogk8ybss 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 conn0gxbi ug,;wc )/d7 zyzected in parallel to a battery. Suppose R1 hi;7)bgzwxg 0,ycdu/z as 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 120g -gr2btua))2f gk hq70 watts and 120 volts. What is the maximum value of the current under these conditions?k2f)a q g-)gu2rghbt7

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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 a wp19nz2bfxrg a a,43mt 120 volts?bnap mx,f4z3 w9 r2g1a

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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 that is r+yoysxu08mu1)c m.r u/p(ot dissipating 36 watts of poy1( m) +tsxru. uu/cp08rmo yower?

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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, 6000-05hwx k 8hoxnv5b oq watt.” In noq0k- hb5 nx5oowh 8v0xrmal 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 fol*)r*3he+e* lwf dn5df lk sw-llowing resistances could NOT be produced by a circuit containing only three identical 6Ω resistors?sew*w*)ef5n drh*+f d 3 lll-k

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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 follobb(-i6+ym w9 b5kz 1fnw tzn5lwing equivalent reib 5kw69+ynl f5w b(mtzzn1 b-sistances 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 resistors of lyv5 b sdkf*n(:0fz8w different values can be connected together in different configurations. If all three resistors are 0ky s l5zff8w:*v (dbnused 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 t -feo 8r(fw-pqvl) w2lotal power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical r)l --8l(rwpf fqweov2 esistors 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 resistx-04uf;x2v sz6 si 3q68xw k/vlizxa aance R1 and R2, are connected in parallel, the equivalent resist2v x/0u8xis6fv kxq a4s3-;zwzx 6lai ance of the combination is 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 resista7rr(c9ke 6wvlnce of 12Ω when operating at 120 volts. What is the minimum amount of time that it would t79vr ek6rw(l cake 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 j e 76bbpy7 r2s5skdc.- 0bqkithrough a 4 ohm resistor that is dissipating 36 wattrb 7k-6 pd2 siebck.y75sj0bq s 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 hezi j(inbpp(, *9:n lkxater draws 13 amperes of current when connected to 120 volts. If the price of electri9 bpl (nxi,:pz(ni*jk city 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 lightbulb lit contio4bnd8 d s9) e3vma,mnnuously fo s48b9ae mn,)n3ddv mor 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 4.001fxe 9lhc8 :kx A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represee1xc98f lh :xknts 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 owg rn.d./rw3v ipy mnhx-4,qn0ns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a sinp.0q3g yhmd- .ixnvn,4nwrr/ gle 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 con p*g;q( ,e9aj3evbek ra( wq*ynected to four resistors to form a simple circuit as shown to the right.awkej a yq,b rqgv*(pe93* ;e(
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/r dx*vqm( e8(f9efvy is connected to four resistors to form a simple circuit as shown to the rig/mvqfx(vf (e*9e dry8ht.
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 idti8nmn*u ;j e0 9ag8bueal ammeter, a switch and three resistors are connected as shown. With the switch open as shown a ;8eim* n0unb 9jug8tin 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, ancw;*g 7uyuo3g f69,8lg zq dyj ideal ammeter, a switch and three resistors are connected as shown. With the switch ycdf jy6ql,zgu*g og; 3u 97w8open 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 swc wr,8*e9 h)swzt tx9litch and three resistors are connected as shown. With the switch open as shown in the diagram the , txwc wlz)*r9th8se 9ammeter 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, wh,:/.8w r.wuh dqb izzdna)ft 3at is the equivalent resistance? Assume that all wires are ideal, the bazht)d.:wu/w8zib f3 ,dr qn.a ttery 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 jo 8cg(+q.r sppx72xt to the right with resistances p8cptos 2+jx x7 rg(.q$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identioda. koor;*m -cal resistors connected in a combination series and parallel circuit *.ado m -;okroto 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 identyu8bf s9 (jy+fical resistors connected in a combination seriesb+s fu8jy( yf9 and parallel circuit 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 identical. Which 3 bbwi+ d,5q: evoq;p6mhm9mhbulb will be t6+ qhovbh,bew9p3mm: m q5 d;ihe 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 xtcxy 12;m2uxc/ke+aswitch and three resistors are connected as shown. Wi2c+1/k xatxeuy m2;xcth 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, anlssm4t :. :rgd ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter 4:mls.st: rdg 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 lr)zhbj dylx ) ii/a (zf,,8c+and three resistors are connected as shown. Witry)zj+ fbzxic, 8ha )lil,/(dh 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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    总分:50分 及格:30分 时间:不限时
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