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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 elect;mzwpfmxs8;u8g(8 w pric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flg8zm(pmpx ;; w f8sw8uow 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 e: 9xl2gae8gnconnected in parallel, the_________each resistor g nge2 ex9a:8lis 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 lis7-yiyjsq ;q*v 08jbcghtbulb causes the filament to become white hot, while the larger *ysqv0i- bc ;8jqyj7swires 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 household lights are bein* lj72yd6xncup j0b2ng replaced with LEDs. LED is the acronym for which one of the following choices?*dxb6 2cu2 lpnj0y jn7

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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 cki i0idxfj27uvpj m5 2eoo )9bj:3+hgraphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cud2ihjpex ojbimcu i2:) 9j7+v5f3o0kt 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 w)hordmo7wx .qu ); c7are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II oc.;m xrwh7 )w7duqo )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 twicdqrcoz;e r71c3q ) px*e the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would haveo;*)qq c7p1rc xrd3 ze 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 material )zlh -i( p;gezpc hy52is then drawn so that it is a cylinder with new lehpc5 2i;(g z zyp-ehl)ngth 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 wan:di htsxa;9c0/ sgmvt(:bo.b ts to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulmt9s./0 to:hgs c ;adv :ixb(bb 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:e rare zj48 6*inkwm)v4p-i g resistors are made of the same material. The length and radius of each resistor 8e )j inarm-:g4wi4r*vp 6ezkis:
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 +)kmm(qjq: e3jrr cym1) u;32d hhvpzbattery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallelk )ed u)3h;v q +mrq1 pjh2(mr3jy:czm 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 intelt0oi n u 5xd.yb d+83fu)gmx-rnal resistance 10.0 kW and the ammeter has internal resistance 2 )fydn380+blgu5xm di ux.to-5.0 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 4jy3 +-tprvmdcircuit shown to the right. The three bulbs 1, 2, and 3 - represenyp d-rj4t3+vm ted 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 t7c(n(w, h koc3m)b ntcurrent in all three resistors is cmcwn)h,k o t3((tbn 7equal, 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 :bhjtrh cqu6q drrmi fmx(o(:p); /(/circuit composed of 5 identical ligc(dj m/6)t xhu(rrroqip(/ :qhmf : b;ht bulbs 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 statemen,;gg.uap /adu ;mrkq 1ts is NOT true concerning the simple circuit shown where resistors R1,mg 1/; ,audpua;.gqkr 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 rhcx+np,xhx 2/,g/ pn to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connecte/p, hxhn r nxcpg2x,+/d 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 coulo(wlc( .k xkce 11zv-rcmbs will pass through the identified resistor in 5 seconds once the circuit was closed?1v cklc-zr (.w(1 xekc


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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 si eyu4ure 5;e/4qjl io1mple circuit have the same resistance, which would dissipate the greu5 ;iu4y14eloq/eej ratest 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 circ(ia 4ksr2 ox,yuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply vo2 aroi xk4,y(sltage 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 resistorirs/a*e 5 rm5fs R1, R2, and R3 are connected 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 voltage acrrar/ 5e5mis *foss 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 ankio8 4e (z8al*yf zny/dR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipat4eo /nay(*8 lkf8ziy zes 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. ) nb l j:cw3fe/:ds8(+bqo kdo What is the maximum value of the cuwlqf bb+d3: : oeocks/n)d(j8rrent 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 lightb up9b1d tn6b)eulb designed to operate at 120 volts?bp6)bn 1 tue9d

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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 dissipating i9rkdgc 2gc n )8wfxj3).woc536 wa8wj g5nrxc2)wfgk.dic 9c )o3 tts 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 un 9g:k(1 zsytn+x:peqs7:cknsed to press clothes is marked "120 volt, 600 watt.” In normal use, the current i(qp7 c9e:ngstk1nk:nx :ys z+n 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 resistanrc: pybu t5b;1jls 82qw *mi6ices could NOT be produced by a circuit containing i qrlbt*85bumw6 c; y2:ijs1p 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 threel0 zcefn4 qe+4 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resis lzc+qf0ne44etors?

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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 diffejn8(vl3;gc g crent values can be connected together in different configurations. If all three resistors are used in a circuit, how manggv(j ncl c8;3y 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 ivx; 8jftv+;g ms connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identicv;j gtfv x8+m;al 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 o ),38fj - .klrpvxiluresistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following stlj 3 -ivulk )xr,8op.fatements 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 12Ω when opeo(15h14k dik 1pf znzmrating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water dohzz m1if k145kn p(1from $15^{\circ}C$ 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 dissipatinggyjrq. 8 eedguuw5; (/ 36 watts of pwe ;qyg /g(.e urud5j8ower?

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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 heaterl 1n5bgnp +x7lnp3 nn* draws 13 amperes of current when connected to 120 volts. If the price of electrbnl*nn3n 7+pxln 1 p5gicity 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 itvtf(yw(d 2 h8 c2ee*+z ,hkxbi cost to keep a 100W lightbulb lit continuously for 1 year*tec8 x,(2 hyvhez2bk di(w +f 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 fj,sy; tls(x-4.00 A through a lightbulb results in a power of 24.0 W ast-,;s(y fxlj ssociated with the bulb. Which one of the 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 fafo0onm*jf/iej;. 5m omily of six owns a computer rated at 500 watts in a 120 V circuit. If all computer*mi;jfo/n oj5o.0mfes 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 connected to four re+syi,gs 2h,e;j bvj,jsistors to form a simple circuit as shown to s; jjb,ge,jy,v h2 s+ithe 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 resistors to form a simple c gc;tewg y/j5m.k4t) fircuit as shown to the rig.meg /y4wjfttg c;5 k)ht.
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 swit5:bp (v:ojo zqyy gr1/ch and three resistors are connected as shown. With the switchpqy bz 1(:y:rov /o5jg 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an i:3fzw.wbtx, 0/gccw/ .nykpnhfd ,.zdeal ammeter, a switch and three resistors are connected as 0g,/.f.,xck/wn yz 3.h t pwwbnfz:cdshown. 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 qi x8ngim w xnw );/b.-0yeyt6switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2xiyeg .qwwyb/8nx) 6ti ;mn0-.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 c1ekzt,zv;f 9/ddu1m; rgn; (ql5 aqpis the equivalent resistance? Assume that all wires pv z9adqdf/;;1lc,g 1rknt5zeq(u ;m are ideal, the battery 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 uv6j ngr 9q/f49j.pemtnn6x ;to the right with resistances;fjxvr4n 69m. u6p9jgn / qent $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors connected in aq. fi eyqj+tuj;b0p*5 ,5w vhy combination series and parallel ;+vuj htqjye, .5 5*i q0pyfbwcircuit 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 below shows five identical resistors connected in a combinfw3bv9 .7-s gil -cn7w mw.pggation series and palgw7g. im7.-n9g vpf c-bw3wsrallel 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 wq/xa4y; j nam0v(hlr b0 8smxqkgaa33o/ x,- the bulbs are identical. Which bulb will b x naqm40s x/- 3rlg 8aom/h;x0va,wb(yja3k qe 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 switch and thre gq5ka c4..; pijlp1eey6a c*m9nnab( e resistors are connected as shown. With the switch open as shown in t.pnqe ajkc4n1p.*ye6a c59g m;l b( iahe 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, an ideal ammeter,w, 5mycd; q,xn a switch and three resistors are connected as shown. With the switch open as shoxn,dy,5c q;wm wn 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 swjch8 emcn;6v1itch and three resistors are connected8ec;6jchvnm 1 as shown. 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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