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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 circuiqo3-: ce pl3ekt shown, an electric current exists in the metal resistor connect-ec loe 3kp3:qed 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 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 a 0uodvdrlr ,x:8lj3f7re connected in parallel, the_________each resistor is the same ,lx 7ruov:j ld08rdf3.

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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 on *wsr n*q0e3thin filament wire of a lightbulb causes the filament to become white hot*r*0 q3enwosn, while 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 household lightga,.k th31 tajxs8ow -s are being replaced with LEDs. LED is the acronym for which one of the following choicsaogah- wj,1x8t 3.tkes?

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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 cr4yn86z vmxh); 9p rwraoss-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 mrvh4w )z9naxyr8;p 61/2 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 ohu/7 2s x:+zx:zrj xpff the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resi7x2r hz+ xzuxjp:s f:/stance

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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 b9fnupzmt(i f7-v-b he j6- kb8ut has twice the diameter and half the length of wire X. If wirn-mhu-fz8 j7b6kbvt(9 fp-ie e 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 resis(7pz rn0 -rhnwtor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length w 7nphrn rz-0(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 w.-pty )h c:mdg(tjn- tants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a g)tg: d(th-m- ctpj ny.iven 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 the same material. r (.r 7zv,q 0yqnu;trnThe length and radius of each resistor r r7yqu. ;nv,r (0qzntis:
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 thg,gjw,r s (tml3 ylz8/e following way: “Two resistors are connected in series. This combination of two resistors is connected in parallell,g8r/(zygt l,sm jw3 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 internal resistany9 54atesnp q(ce 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most sa 4(tyq5en9p 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 ty1k1l jmq78d :6kitxarm;w 2ehree bulbs 1, 2, and 3 - represented as resistors in the diagram 8wkqx;ar2i 11 7m6:kjl tyedm
- 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 cbu)vip i4r*s q / *iy-6d0-u2ke5iumatg sik .urrent in all three resistors is equal, which of /e 5qk-it.ga4iprii*vuk*y 6)s u b d 2m0-siuthe 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(s;/oxjns;zdqkz0o ;p:i) l4y6ve / cm n;mdf circuit composed of 5 identical lid:/;cen 6;m(m/yv fql;)p0kiozzj d4o n sxs;ght 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 statements is NOT true con5n-ik:yx5c qc cerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistancnqc5kcy :5x-ies?


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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 06-dd5o mp xgypx 0wa-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 dg xp-05xawyd0op6-m 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 identified resistor in w7h5n)fdfc;y 5 seccy; nw)fd5h 7fonds 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 following simplwp2um ua 1pbg-u3pr8*e circuit have the same resist8 up r-3g2 ba*uuw1ppmance, 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 accompanybgg3(rh4f9 5pkvv yi 1ing circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power sifkv31r g ph( 4ybv59gupply 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 battm d7y o yct4)u4sv..dqery. Suppose R1 carries a curq yd7std v)4oucm4..yrent of 2.0 A, R2 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 paralleld 7g :rzsipckt+u6eb6e-: k i: to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in-gtz:6e :6k: ikr7u psbe+cid 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 wac93 kq*ub;zr ctts and 120 volts. What is the maximum value of the current under these condi*3;qzr k bucc9tions?

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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 resisnl.+3d;g/ ec// lljwnmq gs+stance of a 60 watt lightbulb designed to operate at 120 declq.;/jlm3w+s/ln gg /n +svolts?

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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 tb :;r2v7q(b b 3vylf+p fjrk;bhrough a 4 ohm resistor that is dissipating 36 watts of power?;yl;( b3v+7rfr f p2j vbkq:bb

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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 mar36bqiu l ag52wked "120 volt, 600 watt.” Ing23alq56 iubw 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 cou 23cexbqeq 9rr w*)ij.ld NOT be produced by a circuit containing only three idexe qr3rqcw* b2i e.9j)ntical 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 three 1.0 Ω resistors. W,1i3g*2z ve3cxba,z wggsj o*hich of the following equivalent resistances CANNOT be produced using all three resz2wg,io jeavgbz xs3 1cg*, 3*istors?

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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 togetheg1 s( 4ot 2ezh7hsut8n+rr;par in different configurations. If all three rp41g;+z r os(2he8tatsh nur7 esistors 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 pi:qkj v5r/-r,1vsz o xz28mcis dissipated in the circuit. How much total power is disscx - :pj 2rk5o,qz1vzi/rms8v ipated 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, are connectedecx0cbmy8st )q;8y0 d in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances 8dx)qccye0 b8;mst 0yis 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 dymy01;,/qh7 fox:0 eyjhz mmxcw 93nfesigned such that it has a resistance of 12Ω when operating at 120 volts. What is the h9yz;q efhxmf1 70x 0oyy,n c:w3mj/mminimum amount of time that it would take 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 oh()ee:m nwbl,k w+2g imm resistor that is dissipating 36 watts of powmmk l( e,wie b:w)n2+ger?

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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 e4*4f5x cm 7cd:7onivweypt8 when connected to 120 volts. If the price of electricityp758: cw* yotfne7c4e vi4dx m 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 71zbbv ;r phc,aub8+v f4(ibjhow much would it cost to keep a 100W lightbulb lit continuously for 1 year at a rate obu ;vv(b+1i8p ah,f rjbcb47zf $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 thro/2lzxv/f:oa m u m/u*iugh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of mau/ou/ivm*zx2l/ :fthe 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 computer rate3bje z i(w)z6qd at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected byjzzwb( )i eq63 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 resistors to form a simple circo(yr f myh(tl: zkw-0-uit as yft0r(m: -okzl(-h wy shown 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 connected to 7i egekqy nt 0/it:d8;four resistors to form a simple circuit as shown t08g; dq/n tieyi7ke: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 s : ggby92ooepxf9+8um1 e xpk(mq;m9awitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0km2a+ 8bougme1mq9 ( ;xpxp9 gef9: oy 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 idealunbqo,vj 1.8w g(0fd b ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the dbfnj b8q ug. 0o1,(vwdiagram 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 ancuokpk5.7 8 .hyej* t 6lqlg/sd three resistors are connected as shown. Wittk* 6g5 lloqp .s.uek /yc7h8jh 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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit ex:s7rmcw1d l6*h+ 5f ul5c dv shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all threewd7 1:e h*l 6x5d+fcmrc lus5v 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 circuit7-kz0djq.(q ci-p :5 dowa3az kwqcl- shown to the right with resist:iokzdjq -az lpcad (wq-q 0kw.-57 3cances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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;szj-kfq+q+np :e 7l*r bcel ) a combination series *7n+zl ebc: ekspqj+l-qf) ;r and parallel 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 belowh q p;5*1dnjqb shows five identical resistors connected in a combination jq hn;*p5 q1dbseries 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 circuit6o;c-cf(e,9jsh ;o if0a q rrawduo;* diagram, all of the bulbs are identical. Which bulb will be the brigdr ohw( ur*aa;0j9fo;of ec;6iq-,s chtest?


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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, 8td-9 e-mzzu4rxhow4+(ur+anvdu z ;an ideal ammeter, a switch and three resistors are connected as shown. + 4-zdzuatrm( -8vzeuh9+wu n4 oxdr;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, an ideal ammeter, a switch and thr( .htwq4k, bhg7d3gmz ee resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperzbtg w4 h,d73gqm.(hk es.
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 are connre z*czz;4f ;aected as shown. With the switch open as shown in the diagram the ammeter rcfrza ;ze;*4zeads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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