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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 circuitj9uv, bh0g jaefpx/c y r::6*b shown, an 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 res pa, bxfe*09j6bygrc:uj :h/ vistor 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 p,cylkql.h 0. warallel, the_________each resistor is the same kyw.lcl0., qh.

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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 th n6usgn rop18d.d.a 8dap: q +z6f,wmpe thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cool6d, +nw dfgm8pr1 6dqp.n8u.ao:szp aer. 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 r2x8j b5ebqm 0geplaced with LEDs. LED is the acrx b 8jqg2b5em0onym 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 leng6d/ begh9w-:odz+wr q( yaeu/ag jb 6)th 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 1aryqd d9(:g/e/6hwu+b-j )zweab 6og/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 jixz2frm 1byju,*f(r r+ o.i3twice the diameter and twice i1rr mr.*x,( 2fi3z byjoj uf+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 thls9b. e ./ce1tpga*yv e diameter and half the length of wire X. If wire X has a resistance ofbce1 .l v9ep /s*.tagy 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 resi;swdp3s) kx i;y lu,to-9vf+ u9zs*xs( s*iqgstor has length L and radius r. This piece of material is then drawn so t; +dis)s9 l yp gx*s uf;iw *sq(o-v9tzx,3ksuhat 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 Edison wants to make a brighter light bulb. qm+c d9wl*uwv9ogs+ u 0u-x+ bHe decides to modify the fwcl - u+9og9+0 x+m*ws quuvdbilament. 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 resi8o*1 nf/wfvmg stors are made of the same material. The length and m*onf 8/wf1 gvradius 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, each of resistance R, are coqi,3zfcs0 op+ nnected 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 resic +o,p3s0i qzfstors 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 them(j 2hxco3 ph+ accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA(32pxohj +hmc . 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 l1bor.j(g./) 3bqflqntll d:the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagrag/lbl1:rlo t3.bl )q.qn dfj (m
- 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 curr+ i ghbtm/ /fo andtz(-g10(puent in all three resistors is equal, whi +hf t1/gtd 0p-(/ bzm(uagionch 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 c k1s+l41p7hfjmm wn(p36u l jn ac3,mrircuit composed of 5 identical light bulbs and 2 flashlight cel+41f ks3 ma 6nl,j3(wpcmpnuj7m h1rlls. 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 concerning t.c(v8awxqcgbl, x(07 mn9w z)hj niu*he simple circuit shown where resistors w9 nm 8 gicqzaj7n0 lbvx(x,h*)u (w.cR1, 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 to a batter0xye 5se ct7 *;njspg0y. 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 following choices best represtnc*g;xpe50je 7s0s yents 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 thfa0f 0tx;pf7qe identified resistor in 5 se0x7ff;q0patf 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 f-myquip03 2suhbu(2r ollowing simple circuit have the same resistance, which would dissipate the greatest power?r2(- mu3bh ui0uq2spy


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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 cuqw fxemk/h7 v-b5-n *yrrent through the 6.0 Ω resis 5m qnwe*vxkh-/-f7bytor 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 series to a batter 9e,n p2 h.nx(gn *+bjj h, 5f+b4bcr-dtrueyny. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates +(jjgn p*2h4bd9bb+-yx ,r,utcn5e .e fhr nn6.0 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 Rj.bvp lla.43p)/tjh wyv0py)a6uy4 i1, R2 andR3 are connected in parallel to a battery. Suppose Rh3.la0 j)upplwbp. /ai4y vvy t j4y6)1 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 ra- pu6u1n7k+ 7,mq buuh2 qnmnnted 1200 watts and 120 volts. What is the maximum value ofnnu2bmu 7q n7 6+u,-k1q hpumn the 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 li *kocj+n(h k sdyp+sesn-z )2(ev+n ,vghtbulb designed to operate at 120 vo*+oenh ,+s -kj(pdn)+2necskvy zv(slts?

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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 ohmjm 2oxvk(bn;s s;0c.*w qg7an resistor that is dissipating 36 wattsxq2nk.7*; js c0omnwvb( sg a; of 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 uvwxzu z,1qz(w++m88 cx: ei vjsed to press clothes is marked "120 volt, 600 watt.” In+wzc ix qvw jxuzm88e+v1:, (z 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 coulyr5k r2 1jhxi+8nsg8td NOT be produced by a circuit containing only three identical 6Ω resist2i8y5sjtgkr1 xh +n 8rors?

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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 given07p + 1d8zpifvfzgz ,vdb90fl; l0ugv three 1.0 Ω resistors. Which of the following equivalent resistancep zlv0 fui+z8fbv,glv01fdp07gdz;9 s 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 different values can be connected to;g 7kpox ; 3jgosqwygi cv:23 5tc.jk5gether in different configurations. If all three resistors are used in a circuit, how many differenti ; vtg o52jk;x7y.q3 3ocpws5gk:jg c 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 batmsxx ie/s685 jg2qf fmaue( b:rq61e2tery, a total power P is dissipated in the 25e:6mrusb smai qfg x/(28xeqjef 16 circuit. 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, hlgkym/ 124)hpco4pgj c f u;9iaving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the rec;k4o/f)g mcuy j1 4i9g2hlppsistances 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 w81t8-avv:tiq;q1t ,i (fscen c s/jethat 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 of water fro 8c 8(c/e e:1aqvw snq-titf;,isvt1jm $15^{\circ}C$ 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 dissi 5t 0e;pshgw i7+w) c f7:icxznbd:4klpating 36 watts of pof0:z7h wib:4lec7cxdp s;)gi5knwt+ wer?

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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 ar sl 34gv,ato4mperes of current when connected to 120 volts. If the p 44 ,gvastlo3rrice 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 100W lightb o-naemhjlgg 9- 2;17i)jfnml ulb lit continuously for 1 year at a rate of m) 7g-2 ohmel9jniajg-fn1 ;l$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 lig* olstb(:2/g /+ xez0nqmruuwhtbulb results in a power of 24.0 W associated with the bulb. Which one of the2 /:rm(ug l tzobuwsx0+n*/qe following choices 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 sixhga+ ik5i 71o0csz bf.vays :, 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 thei5ofs70s:ay1z.vgc ,+hkb ai 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 f8*-b gvx g1jrmour resistors to form a simple circuit as shown to the right.jv1gm8xg b *-r
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 resistors to form a simp;p z 5lv 3e t6zur84; af-l;ar,qrjelj+zpy9sle circuit as shown to the ri y;t,-8 urz6f+5jz9ra3vjlqpa sz;epl 4r e;lght.
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 switcsb2m ex 4c6;o3jvb, eoy(,o* wx+ mfhyh and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter r4 emxowy2,6o;x+bs 3o*,f(h b e ycmvjeads 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 resiw d39odc).vn dstors are connected as shown. With the switch open as shown in the diagram thedv ow)3. ddnc9 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 tlm/ hez zhc/m/. r5k6;ayl5 vxhree resistors are connected as shown. With the switch open as show. y5a zhz6k/e xc vm;/ll/r5hmn 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 equivalent resistance? g h*2s/6ns swcaiw)5s*/oatz Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical rnoiw*ah6w /atcss ssg5*z /)2 esistance 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 with/ (bfash:x6 qr resha6f: r sxb/q(istances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belo)yfm .i;0lwhy 1b io)ow shows five identical resistors connected in a combination series and parayf.1)y )i lhb wo;imo0llel circuit 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 beldnmnp :r241fbow shows five identical resistors connected in a combination series and parallel:1md 4bnrfnp2 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 diagra 6w.vwm;tti)sm, all of the bulbs are identical. Which bulb will b. 6;wi twmv)tse 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 ammeter, a swiyn91xk6kj a ,ytch and three resistors are connected as shown. With the switch open as shown in the diagram 6n, 1ajykky9x 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; h:if6a25)f lp vtucu ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the d vp; fiachu2t56u)f:liagram 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 4 dxk*2 *yb6lkqgcs,b three resistors are connected as shoky 4l,d6xcq*b2 k*gbswn. With 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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