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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 electricnz n4uy)8yqi (): ti d(yggzx; 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 resistor and the direction of the electric field through the interior of the resist8)(i ) :yz4xgz;ngq yndiy(utor?


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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 pe8qle-rqle (07jlb: varallel, the_________each resistor is the sa 7 (eqr 0vlebl-lqe:j8me.

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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 lia wr k9wgoc:h dx 2m0bi09.ua,ghtbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. km9h0bcrxaai,9odw2g .uw : 0 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 replacx 8jvtf d/7j+aed with LEDs. LED is the acronym for whxt+7 jjv/da8 fich 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 gr ca,ww t3 6 o/y7tjjeai73e8gfhn4a8haphite resistor has length 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 1/2 L. What is the ratio of the new resistivity to the old resistivity of the cylindrical re7j/f3inaa whog8t 47ty c 63,ajhe8e wsistor?

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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 m 9u /obxlam-g7ht hv .;;xbnl2aterial. Wire II has twice the diameter and twice the length of I. If I has resistanc27xbvun hhl;aob lxtgm/; .-9 e 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 g+1dspi:4 -+xue yiy ibut has twice the diameter and half the length of wire X. If wire+:1 igyix ue y+sid4-p 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 6s fp)(3(io*4os hvaen/catland radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this matersioon psaa*hv64/e ltc3f) ( (ial 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 brigh n uyp9-14risnter light bulb. He decides to modify1r-pn4 sy9iu n the 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 of(kr( wjo1 (hif the same material. The length and radir wkj(i( foh1(us 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 connected to a battera;tlz ao jiivp.*.f;5y 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 equ;tzl;ija*5.viap . f oivalent 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 digj )agr 4-w2rpok t;/hj,2 fex:p8j9yncz jc8agram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is jt:hg;-yrc9oxfrzjw g8 82ae,cnp)4j/jk2p 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 rightnsx/wr qk lp8fl30itss)) f02. The three bulbs 1, 2, and 3 - re/3k)fs tn) i0wx pssqf2lr8 l0presented 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.mhu47hi7t6z0 df e cuo3m22dh If the current in all three resistors is equal, 7d0u 7c2hfmh4z 6d32hmit eu owhich 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(4+ kuwhar(+pzhsqu 0 electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bu+rsu+wzu hpk( q4 (ah0lb (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 concerninu)p *1c) ghb-vpjz3 big the simple circuit shown where resistors R1, R2 and R3 are have eqc up*vpg-zbj i) h3b)1ual 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 a.: ox;anjct4juqf5 lf1zn(u;ndY 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 following choices best represents what is observeu; 4xznnu.l a5 (ff1:qojtcj; d?


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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 coulk5:hr /aasg/ zombs will pass through the identified resistor in 5 seconds onag//as hk5 r:zce 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 cirr,ol3m*v ymkb fd176 scuit have the same res6mvy b1of 7 s3km,rld*istance, 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 diagramh*0hz vy ma6f/, the current through the 6.0 Ω resis h6v *yhfa/mz0tor 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 i 1cn,7 v2xdz,s/ rrjmR3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2d 7sirv2 x,/nc,rm1zj has a resistance of 3.0Ω, and 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 paralles95lv6-y sb jfl to a battery. Supsb9fyj5-l s6vpose R1 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 rated 1200 watts and 120 volts. What 9,)(vqskaa;ra ty eo;is the maximum value of the current under thesk(;rotv aq;sae )9y,ae 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 lightbu2rpjy-v(vvj,o tm;, 1fzm: lclb designed to operate at 120 vollc-j;rvt vym( ,vof p1,2:jmzts?

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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 thry/uu*o47 am))znng w)c- jxqxough a 4 ohm resistor that is dissipating 36 watts of powezgoyn j*m 7u/-)x))anxu4 qwcr?

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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, 600 watt.” Inf54k6 czoxkapkk1* a, norma*5kkz6afac k1,opk x4 l 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 1lgs; 6ahf,,utfqv6a resistances could NOT be produced by a circuit containing only three identical 6Ω r6gsff;tqhvaua ,6l1 ,esistors?

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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.e: 28vg(5tjtr; wgt1 dgxvz2z Which of the following equivalent resistances Cd8gz 2jz(t rxvtgwg;1v5t:e2 ANNOT 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 together in dif863z,h mrt-gbj93e r ew)jzjk ferent configurations. If algr8z)-jrj mh,j3z9e 6wt bk3el 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 resix-(3m xchnfpr)cq3 0e stor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit i x3p)0hnqf c-(c3xer mf 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 anq(bmg iy4un:vhovht3 opj 8**85v 1und R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is corr8 g3(:ih4 1hby vmo8vtqnvpu5* u *jnoect?

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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 op2*8kflx s, ofherating at 120 volts. What is the minimum amount of time that it would tas f2h ,olf8k*xke 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 resistor that is dissipating 36 w* *e y-uki, 2hqerxv se5n2l2hatts of qhye5ne,iue v**2lr k-2h x2s 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 d6cy+u kll 8t(of current when connected to 120 volts. u8 tycd (+6llkIf the price 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 lightbulb lit contingu) r6 woz1n,guously for 1 year awuo6,)n1 grz gt 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 throughuq l8g 6*f7fmg a lightbulb results in a power of 24.0 W associated with the bulb. Whic6q mg8f ul7gf*h 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 family of six owns a compuzkx9yz+ugy:no6zbz3( , a5ys ter rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 amperk:5(6sz zzyxz yn,a bgy3o +u9e 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 resistors to form a simple circuit 7q)a mry:o 2gras shown ar7g 2qor)y:m 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 co.bsl.r r:5;9vumv y(uuyd*c 4cbe-b hnnected to four resistors to form a simple circuit as dh*:( r9.mvbcbs l4u-yev.ru 5ycb;u shown to 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, an ideal ammeter, a swb t w34js2zt,sitch and three resistors are connected az4tw3sj2, b sts shown. With 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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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 ar0nd1w7x zs -4jo/tz wfb/p2-ma5cb lf e connected as shown. With the switch open asnf7fpasbxmz20 5 jd/cl4zbow-t/-1w 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 ideal5s*d(elpdh ecc4+snm yr ,z.2 ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ap4. (eysn *zehmcd 5 l,2d+rcsmperes.
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 res4du+ jv,vt2y3sjn g:khyj(x;istance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resist v4;+sktjg hxyu2yj :j,dnv(3ance 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 ry jo.)ji2ncp1+x/iswe8 f9rhy wvd 0. ight with resistances 29jwpn.r10 x+ye)j/w.d cy o8fisihv $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistorsw4l axxtt , tcuk(y9(1 connected in a combination series and parallel circuit to x9kt4t( (ca 1u,tlw xya 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 combinateev xt)6w n+6c*yd,nv ion series and parallel circuit to ad*e6w yve,cnn tx v)+6 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 arevmn p mz7c6k8: identical. Which bulb wi8czn :7m mpvk6ll 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 ammeter ug)uw39d k+vh, a switch and three resistors are conn )dhwu9v guk+3ected as shown. With 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, afhqhdt 7jkt. 9sh)mvs9 l;13mn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagra3).9 dqtvkt s9hhf;s jmml71hm 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 resistors ar1aj6x0gliex (y:rymi0 37hf ue connected as shown1i7:jy axe(lg ur 600i yxhmf3. 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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