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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 curresan gmdg -9q +r9 +wo0fjc m30ig0cj-vr5yk(int exists in the metal resistor connected to cng( ry0grvm5m0sgoq-+ jdi f+0k9j3w ac -i9the 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 are connected in parallel, the_________each resyo;( p8tzp8dm istor ismpt8 zd;(oy8 p 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 filamencx j::m((nk emh,.cls6ih m l+t wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens beccmi:m+hmce( nl, k 6sh(l:.jxause

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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 reetv 4anhpx*l -mpt-- ;placed with LEDs. LED is the acronym for4hl-np e;mv a--ttx *p 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 leng5oq t dlf221q 5tgaid,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 1/2 L. What is the ratio of the new resistivity to th5afi1odgq2q2,t l t5 de 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 twice tftx:dvu8;n f;he diameter and twice the length of I. Iff:8n vfx ;;utd 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 hafk /dopo9/ i4tq (*l:n* mxafj;zclb ;lmvd(1 s twice the diameter and half the length of wire X. If wire X has a resistance o* kij4laoz; n*vl;xb/fmcpm qt(9 (l1d:fd/ 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 and radius r. This piece 4bu *x 6olg vyb-;b5 0ncy,fajof material is then drawn so that it is a cylinder with na;y,xvb b- y 4c of0ljb65ug*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 bulw3 vl80x4 wiacb. He decides tolw03 4iwav 8xc modify 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 mam(x 1+gv/m dfb x+ui0ede of the same material. The length and mviudx1+(0bf +g mex/radius 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 battery in the fy xx z4.vv1hcw7,h.acollowing 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 connect.y,av4cc.xz h h7v1xwed 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 k/lxln,, zcgyhe u- 0v7),aeuthe accompanying circuit diagram has internal resistance 10.0 kW and the ammet, n7/, 0echeu a-vu,lkgxyz)ler has internal resistance 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 to the right. The three bulbs 1,ao5p pjs2;gwi w98 qrh++c)ye 2, and 3 - represented as resistors in the diagraoqwsg a p8e c+j;)p25hw+9riym
- 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 electr(4da vuv7mz4po7jpgz( *j(afical circuit at the right. If the current in all three resistors is equal, which of the followinm jv 47aov7u*fz j4((zdp(ap gg 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 r q:dkeuj 9bj9:ight represents a simple electric circuit composed of 5 idejqb:d99e k: juntical 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 following statements is NOT true conc . ltg7r3+nnyeerning the simple circuit shown wte3+. gry 7nlnhere resistors 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 are connected in series to a battery. Bulb X is peu57ltrg1ke ,7etl; brighter than bulb Y. Assume all circuit elements are ideal. If ,7ee5u7gr le1tk t; plbulbs 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 will pass through the identified resist wc+fd to8sa olxf)g;)qefyt3e3o( 3 .or in 5 seconds once the circto3e (+.dl8ysf ooff )33c wgt);ax equit 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 ttm5nnfsd2 bt8 n r39-1ilzm; the following simple circuit have the same resistance, wh 1irstn tl3n2f9z; 5 -tm8mdbnich 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 diagram, the current through the 6.0 ap3bk/v9 iw4e erb95s Ω resistor is 1.0 Abiw5vkrbe/ea3 p 94s9. 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 battery. Su/8crw8 8ipb qxd9q 3agppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and 8i 9gdxa/q8rbcp3 qw8R3 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 R 56lex*-ran se.z 1guacc3) mc1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 cc-rman 5xu* ea z)6g.cesl31dissipates 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 7)c;;ovc d/azsnw ib;watts and 120 volts. What is the maximum value of the current u/cszb;;7i;d ovc)wan nder 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 h7 zsv3sw r,r*sk2e.nto operate at 120 volts z3ssk2.7,rs hv*wrne?

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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 isv4yt.7 / dgfgy0uax-y dissipating 36 watt ag.0y7tu dy4-vgyxf /s 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 used t ;dni:y1/pjyhii )m.)bhn8 q xo press clothes is marked "120 volt, 600 watt.” In normal use, the current :xyd ih)yb8n)ii. 1hmn;j q/p 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 could NOT be producex722iaol + q3qvm+jw od by a circuit containingoqj3v liawo22 m++x7q 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 three 1.0 Ω resistors*jdp+gtoa5q .4 aews0da4i -r. Which of the following equivalent resistances CANNOT be produced using aasig05djqdre.t - 4*paa4o+w ll 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 ii,i6bg *7xsyll*a1 -,ux 6c k( efgvtun different configurations. If all three resistors are used in a circuit, how many different values of tota*c1v ug(l, xe,y ig*67xu altkfbs 6i-l 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 connej inn0f37p)g(es k3ps cted to a battery, a total power P is dissipated in the 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 ip si0 e(g7jsf)pkn33ns 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 connects +/haa bxgtv9z2 7ez6ed in parallel, the equivalent resistance of the combination is 5Ωgb9 76a/avzzh2 + tesx . 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 a resistance of 12Ω when operat;rgbls( )pga)i9wr9 y ing at 120 )gpwa9i 9l()ysbr g;rvolts. What is the minimum 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 dissipating 36 w8o +4iflv*+o- i pwczhatts of po4+oofi- vl*+ cwphi8z 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 13q *fcps m6h5:o .f) j+vjt)gxv amperes of current when connected to 120 volts. If the price of ele x.j:p*s tgv)f+)fc jhqo5vm 6ctricity 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 mu7iekd+z le8i:g: pnx3 ch would it cost to keep a 100W lightbulb lit continuously fo:: d3n7i+elpiekg xz8 r 1 year 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 4.00 A through a lightbulb ;;6/ m2y)icbuid(euu rn w lz-results in a power of 24.0 W associated with the bulb. Which one of in2u) ;- /lu;bmizrue (w6 ydcthe 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 computer rated at 500 wattsskc +k44xer;-oq-fob 79m. xm .ea/6 eg uonvk 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 operatikexou-k+go.rbv a om4ef -n9e 7qc/;6 sx.4m kng 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-*ylfw.8rpxp z ):yq j circuit as s qp-fy*8z:.w)x yprljhown 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 four resisn1j+vmm36 lz mn s;q, rhqn0y)tors to form a simple circuit as shownns mj6q mqvhm;y1,rl+nz0) 3n 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, nmv4:qhnld.w8w,oi :n j7 d 7va switch and three resistors are connected as shown. With the switch open as sho w:n:,nm ol7.8w7njv4divdqh wn 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 threee- fs;*uz-ctk) z k2sw resistors are connected as shown. With tz f 2scw -k;-k)setz*uhe 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 battelk 4j)4 ,qz5d.u fihtzry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown ilfd5zkt)4zq4.i j h,un 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 equivale i.85km25lvs z0)u, uaye37olvcebs pnt resistance? Assume that all wires are ideal, the battery has no internavub2yme3k0 ,lves ul558c.7o psia)zl 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 circuif 3*z7d-kt+beqrb t7jt shown to the right with resisqk-7 b+ etj7tbr*d3zftances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 showco7+a+ vyyi, 0ubw06 e nwx 0itn42wlqs five identical resistors connected in a combination series and 4 yqa2vw0oi t 0ilcew6 ,y0nx+7+bwunparallel 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 below shows five identical resistors connevdf uss:u210l cted in a combination series and parallel 0fvsul:d1us 2 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 the bulbs are identic(eikwiq e7 ps8b z.- /i1nqlp1al. Which bulb will be the brightest?bkpen71 siz pl/q q(i.ie-w81


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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 three rbciiwc gn :j2n/1kuezxu :*. -esistors are connected as shown. With the swi w g2zx*.cic jik-1unebn::/utch 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 batte m l;f7qisxq7 c9hgj47ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diaj 9gi ch 7s7;lq7fxm4qgram 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 battw )4aiw,zxd8 nery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter renw)d48zx wa,iads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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