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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 curreql0/ pfjvg)0ie mer7)jj k 8n1nt 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 electq0v8m j rnl/ge7f0e))1pjjikric 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 ar9rebhv: x .zi1e connected in parallel, the_________each resistor is tb.zixe19:h vrhe 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 *4nq3 b0yin hcfilament wire of a lightbulb causes the filament to become white hot, while the la incnq03y b*h4rger 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 LEDsq pn-ve0-65wyl bu g;c. LED is the acronym for which -v; ewg65b0 u qlcypn-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 legr*s/. 1 h8dr dw4et7v)y tzn6pe4cfh ngth 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 th1t *7zerg84/tec hr yw 4pvf)6.hsnd 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 h p2ulo+ca6wo0 )eiu4t +ahgb5-/ hvvmaterial. Wire II has twice the diameter and twice the lengto)w guh/b- v5culp 6t v+ 2ahhi4a+o0eh of I. If 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 materi rvvvjx(ef6 pm, d(+jnu.x7z )al but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a re )vr6,zf7n.vm(v+ (jj duxp xesistance 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 pi(*m hruoo43-mmhb (z gece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistancemu *z oh43(-ob(gmrmh 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 bulb. He decideztl: u2 -xw)9tcrpa 3vs to modify the filament. How cwt pv3z-rlx9a2 :t) ushould 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 the same material. The length an0i mhlvtm4(j /bcf+)l ikhu2k;h4v j0d radius o2ml)uf4 vmhc0tji/h(+kb; lvkjh 4i0 f 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 resistorwpuod.cjej4 u 705u;-od *ylzs, each of resistance 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 resistor. This set of three resistors is connected in series to a fouryjp7-u;o.ejzul d u*wo 054c dth 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 accompan4-hs zvurj:j+w :l/ixying circuit diagram has internal resistance 10.0 /s:i wjx -ulr:h j4vz+kW and the ammeter 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;:u1 3urt 8rrpkh0 ury the right. The three bulbs 1, 2, and 3 - representedk3uru8;t:0 ry1 rhup r 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 dhrv8otjz;t nmo; 7g76s xv m:ca+w;4at the right. If the current in all three resistors is equal, wcn7r8:avwmz;o7mj;hv+;otg4tx ds 6hich 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 represent *6mmanlw ut:b hp),3ms a simple electric circuit composed of 5 identical light bulbs and h l:n*,bpa )3wmmu mt62 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 conce9 wqwsne1;m4f c ab;z 2/dso0trning the simple circuit shown where resistors R1, R2 and R3 are hav/f4osa 1wmbwns ;eq dz2tc9; 0e 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 iqrkwqqkg+1 352 8 akihoh4vp6n 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 observp8352kh6qqi r1vgq kawkh+ o4ed?


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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 ybt8 + r3/j7b zdql/anf:p c1,ew8kbq will pass through the identified resistor in 5 seconds once the b7k lqetbpj8f1w q/brza c+3n,/d8 :ycircuit 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 circuit have dpp 1mj7 lh4wvpt/9/uthe same resistance, whtpvl4p u9hp7w mj /d/1ich 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 circui)f/o ;kh zbz*wojtc79rtz9rm q168 zmf,j e;pt diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply vol wr/1zmr zj bk7 th;je) z;9m9cp8 6*fzo,oqtftage 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 auww2ug0q3 ; kx 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 ac3x2 0kgu w;qwuross 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, xl u,knr6(h-eR2 andR3 are connected in parallel to a battery. k6nh(-er, luxSuppose 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 t* dml- (zh9ka120 volts. What is the maximum value of the current under these conditionsd9-( m h*lkzat?

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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 hh 1is mk8*j1wt0-6do+gwfto to operate at 120 volts?6mk8tidh*+ -1 wow j oh0gt1fs

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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 thr wp+3;/zji ccpough a 4 ohm resistor that is dissipating 36 watts ofcc3+pi /z;j pw 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 to press clothes is marked "1209 yee*nr00ex 8mcbfs: v4ky5t volt, 600 watt.” In normal use, the current b8fvtc sny490e 5ey*ek:rxm0in 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 coulbiu)6(ggv v+ jd NOT be produced by a circuit conv)ig+b(u 6g vjtaining 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 threxnzq:n )9h+31k ro(( jvb4 sedgufep,e 1.0 Ω resistors. Which of the following equivalent resistancesn(bnex u1 9 )+4 rpj:kfdsvo3h(q,g ze CANNOT 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 inhgh1ezlq j-68bd t6c/ep/- *./ hmynj nj4bjn different configurations. If all three reb4.-d-1eh h6gemht bj qy/jj 6*nljc8 /pnz n/sistors 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, t:w )v22epfy61.6vuiq qd5cjc yo)fhme:g.z a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n iden thdc:6)f w:z2p16gqej2uy).cmvfeiy .5o vqtical 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 5min5q08 hcj wk9bpm-resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Whkm5c09 -bwq 5 n8jmiphich 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 125 oa dqq5n/x 9kq*otn +g;u,n3ka of0vΩ when operating at 120 volts. What is the minimum amount of time that it53; o0xkvk+* d5/nqao,utgnf q qon9a 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 relpio eh).t, o: a8t-tasistor that is dissipating 36 watts -elt athto .aip),:8oof 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 drawc wovtiz+nr:n3 h7. 0ls 13 amperes of current when connected to 120 volts. If the price of elect3ti +.n 7v:r0owclhn zricity 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 lightbulbekoem;vbngt.r 0oc -s* hd)5+ lit continuously fom50osd tkgoebn-c e);.rh* +vr 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 curren qiuf5(t*;h: uubj cc5t of 4.00 A through 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 the lightbulutcuubc:h5i5f;( * jqb?

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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 rat q+o)+m:ijyp.k l x8rqed at 500 watts 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 mq :8r+kx+)il pqo.jy 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 92 ljsieh7 6n5n giz4vto four resistors to form a simple circuit ezhvn75jg 6i l49sn 2ias 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 four resistors to f:s i ns)l,gzet9tlyr31ca,388a5 m +zqnuvi lorm a simple circuit as shown to the right. l39zevrl 5gyz 1sal8a8,mtu c +ni: t3,)niqs
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 ammete ,i-)7 oca4 vzi-sf )ro-vgik)pkdzg 7r, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.) gz-v fioc 7ri4-v7 )k,d )a-spikzgo
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 d4848 l;vsxbf rknv8 uare connected as shown. With the switc4vsdb k 8 rulv48nf8;xh 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 switch and threehyh -1d/zm9 f rbi8s2w resistors are connected as shown. With the switch open as showd2shhr8/y 9z-1ifmbwn 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 qtax r7j ecxv;,-;q5i is the equivalent resistance? Assume that all wires are ideal, the battery has c;jivr q-ae75qt ;x, xno 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 right with re6s k31fnwzgip8+1s,44shao( ulgu xi sistanc1fgss, 4 g(z +slu4upohw16ix83naki es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 conneca -u1/opywmhvh0ag9.f:rh +p ted in a combination series and parallel circuit to a voltage source. mu+0w :/ofh -vg1p9rp.hyh aa
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 identw)dwbmg qgu)diyvq8*b2k - .t a.0 u6:q-t dpxical resistors connected in a combination series and parallel circuit to a voltage source:dg*v0ayp2 t)uq6bd u) gw-8mbi.wq. k t dxq-.
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 identical. Whityjwt6z0r 5g6:kle .kfltf8 .ch bulb w :t8j6 lykftwf.rt gz.e 6kl50ill 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, a 7dx21 wzmx-w n uic;(aid+f:wy,v n/hn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in th+ w u,2nx7 w h x1i:dzm-ia;(w/ndcyvfe 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 three resistors ar8nx8t -cs /pok xdj*7le connected as shown. With the switch open as shown in tht s8o/xk 7xn d*-j8cple 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 switch and three es*kv(he;6 z43dc evai qey rz)a; y+5ypr2n4 resistors are connected as shown. With the switch opk yseaqypzr r+(;4y2ezdi vh* ;36ene 4)c5 aven as shown in the diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


参考答案:    
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