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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 currelonk 2ciq 8wp(-oi+b 0:bxi ,hnt exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron o iw lk2n8 (oibq+: hcxi0b,p-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 connected in paralf k0ji)56qz;sr, qmkblel, the_________each resistor is the sameqibf;5)z6 0rkmj ,ks q.

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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 uj6m0d3bue-c ent to become white hot, wb6u 30u -jcdmehile 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 lights are being replaced with LEDs. LED4y8mn/djutn ( cjzgjm 74hf85 is the acronym for which one of the follo(mcym5/ td8 nj ugz44h8jj7 nfwing 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 g hfn3xks03uf /raphite resistor has length L and cross-sectional area A. It is to be placed into 0 f ns3xfh3/uka 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 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 mat4 -0f3gupviqf erial. Wire II has twice the diameter and twice the length of I. If I has -gpiu v03ffq 4resistance 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 the diameterugqr) ;gjao,xd:e/* d w1y h)k and half the length of wire X. If wire X has a resistance of R then wire;:*) kqgo ,/wdaj1 )rgyudxhe 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 and radius r4 kuph6h4lqta (:g p*x2xb f9f. This piece of material is then drawn so that it is a cylinder with ne9* tu 64gabq(ppxlh2f:4x hfkw 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 w6bns- l;j,k(l fe. n(+co.qi 5oxzvfto 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 gix k,l+czfl( ;fjwni6 -sbe q.nov( .o5ven 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 resistog8 lweog :(6pszqt 9tup( .)dyx4 lj,e 4dbdl1rs are made of the same material. The length and radius of each ress4epx o 8g6t1u(d)dg.9wbd 4llej: zqt y,pl(istor 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 resistayq )w)x i ;8q zw8lonc5iq:5ylnce 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 reswwl5x )iynql y qq:;5co)z8i8istor. 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 i65xyv5d gxdq y-)k8ignternal resistance 10.0 kW and the ammeter has internal reg)yx8i qd6x -vdykg55sistance 25.0 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 circuit shown tone1-:kq5.dyumj+ ;xi cibe.-rdtw:l g9lv7 u the right. The three bulbs 1, 2, and 3 - reprqm+lxw.v7l eg.i9j1d:d5u:ny e -kr u -bti;cesented 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 cirgr5y ;6mbu8gg cuit at the right. If the current in all three resistors is equal, whgy;bur 5gm6 8gich 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 axim8 *lwv bc/ i4o3vg6. lsbndcp /o50t right represents a simple electric circuit composed of 5 iden6np / b iclmo*i4cvx/.08g3 o l5dswvbtical light 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 follol1b i:2 uwf+fdwing statements is NOT true concerning the simple circuit shown where resistor:dffw ib21u+ ls R1, 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 ars 9 t+gb o.o:f8;ytrppe connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. Ipsb9 py.;t8o+ r gt:fof bulbs X andY are connected 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 coulombs wudq v5dbnmnib3/ 1,u35 ff.rb ill pass through the identified resistor in 5 seconds once 3b3/i,dfbdnru 5nv.1b 5 f mquthe 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 rcrq 9fb;5jc03 xo0:ew hfxrd.esistors in the following simple circuit have the same resistance, which wor ffx0ceo j5;: 3c .r90whdxbquld 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 diagram, the current zj q5rxb93urgqfjk5sd :1x79through the 6.0 Ω resi:qu991 bxrx3 kdzgsq7frjj 55 stor 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 resistou0bknbrya vxj; +yv 7w v(v)-3rs 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. Whab+a- )yn;vywruvv3b 0 7kx j(vt 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 conn +su 5vu,o0uvw). izsyected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the cu) v0u i5usvy z,o.wus+rrent 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 avhavf : :uyris1rorybz- :141nd 120 volts. What is the maximum vri11y :1vo:-:afzy sbuhr r v4alue of 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 lightbulb designed to operate at 120 xue;a,d:rcvf8cl rit rav,g .m /0f7 ,voltv,rt faced8uv,: x;m /r,0.rfclagi7s?

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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 tyfx.cq-u;:gat o:t.flows through a 4 ohm resistor that is dissipating 36 watts of yu o:gt:ttf..-qc; xapower?

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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, xk*wsdh(e8ou*2(( im lisd.b600 watt.” In normal use,xb.dme8*uo(kw( 2 lsh* i ds(i 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 k (l0ceyv1ysx9 wkh/ ulia6;qh w,/(spty77n following resistances could NOT be produced by a circuit containing only three96p7( nehy1lckly t7u v yksq,(hxw a;// iw0s 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 three 1.0 Ω resistors.jfg3 q)*/djpr Which of the following equivalent resistances CANNOT be produced usinrfg/)qjd 3* pjg 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 (kqnmmp,.v i b+o5h/x/13jzk htdo:g different configurations. If all three resistors are used in a circuit, how many differq/1x hhk+m km b. o(oz3i5t:/njg vp,dent 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 7pzmyh r skwi; b:y5.:dvjz400jc ql :power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in seriejyks4jy;zl. 0zw0i ::cb7rmp:qv5 hds 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 connected icf7mrq fx2 p57n parallel, the equivalent resistance of the combination is 5Ω 7f7x mp2rqc5f. 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 ab 8q)b,a-58 gdpzhwjo resistance of 12Ω when operating at 120 volts. What is the minimumabg8hwo8- ,zbqd)5p j 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 ohm resistor that is disscdvs t- u 4a6qw3rbg+*, xblt6ipating 36 wattlcba- xvgur*46wq t,s+td 63bs 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 hea(/bd4m4r ftq hter draws 13 amperes of current when connected to 120 volts. If the pr q( mhrd/b4f4tice 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 to6qs- omx h6qx6 keep a 100W lightbulb lit continuously for 1 year 6-o66mx qxsqhat 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 currnhr9 cza sn6/(w(t yh8f-xrw;ent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one o (r h f9nxt(n8h6a r-yw;swc/zf 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 ow89d a4w8hg j 8crift4fns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a ti c89h4gawf8frj 8d 4single 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 batter 1;tf,+ xeb-hen+ghj py is connected to four resistors to form a simple circuit as shown t1,f xeh;pj-bt he+g+n o 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 four resistors to form a simpledg4q6yu(3 ip8 c,dpsk circuit as shown t(d d i3,q 8yckug6p4spo 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 switch and nbxq;rym mh( 4 ):(mptthree resistors are connected as shown. With the switch open as shown in the dmyrxq(h (p)bm:4mn t;iagram 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 rgym; 4 7p(kqjpesistors are connected as shown. With the switch open as shown in the diagra7; mkpyp(4 jqgm 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 and three resixrorr rg 0e,)g(9lgm+(xu ze5stors are connected as shown. With the switch open as sho )g(m u gerrzg0 x9lrx+ro,5(ewn 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 resi,sr f:as /f2njya02j astance? Assume that all wires are ideal, the battery has ns0: /ajsrjya,f2af2no 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 to the rib 04ydyb;w:*yt ch*d1zan+f j ght with resistancej+t 4 y;1:hdnbzdy 0w*f*bcay s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 -r3 ldq+9pej uresistors connected in a combination series and parallel circuit to a vor q+dje3plu- 9ltage 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 coh;(+ qai3fic jmbination series and parallel circuit to a voltageq3 h+i(ifcaj; 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 idenk bl0ioa-4,e atical. Which bulb wilb, ilea-4o 0akl 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, a switch and thre3/k c*ne1avqv5 2j(ar jnz h4ke resistors are connected as shown. With the switch open as shown in the diagram the ammn5*ejnvc v hk 4(3aak/1zrjq 2eter 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 and7xlb bb 51u7)nu jl *e7pduga2 three resistors are connected as shown. With the switch open as shown in the diagram the bgju1xauu2le7pb ln*7 b5) d7 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, a24o o,7ex )me/rz njadeh0 tt-oc8md5 switch and three resistors are connected as shown. With the switch open 8oter,5 c0 dno2hz md4m/texeja)-7o 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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