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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 current exists in the meta 07f4k54eqqopmk r/b cl 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 toek0 kqm74/pfqb5c4r hrough 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 inb1;rp1iv-0t *tn0j m7v zbu8unean5 z parallel, the_________each resistor 7vu-m r1n*z bn;n5v1pu bjt8e 0it0az is 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 filament wire of tr o*4h+;8cek)ill hd a lightbulb causes the filament to become white hot, while the larger wirest)* lrc;hdhok 8i4+el 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 LED6j xtkc5x ,4j5bna,9o oy) 5chyh+pyls. LED is the acronym for which one of the following ch+ jo ylx45bc c,yxh5j aot,pk5)9 h6ynoices?

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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 cross-sectional are:),lzsp xl m3ya 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 )lz ,:ysm p3lxthe 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 hay9. 7itig*x+)wk bwhxs twice the diameter and twice the length of I. If I has resistance k* whxb.gyix i )+9w7tR, 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:tk)5q*bdur h material but has twice the diameter and half the length of wire X. If q kur*bd5 )ht:wire 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 h ) qzu4pcd5g61r dsl;oas length L and 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 czlosu)drpg6 4;qd51material 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 */akhct7 xv r4Edison wants 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 given 4h *xtvcr/k7avoltage?


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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 aret/aua)+mw tianbp6vs 37 kka3i79+ ff made of the same material. The length and 7ka pf auikiftn3 s3+bmatv+a9 7w /)6radius 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 resistorim3vpc3x7usf:x / 7 ogs, 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 resist m3 o3picugf/sv7x: 7xors 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 resrp. z3vk;n 6tristance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter readir 3tnpr6k z;.vng 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 bise */d8 qb.bculbs 1, 2, and 3 - represented as8 q .bciesdb/* 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. If the currenqabc 41ec;/gz x 1c.hcmx .c(mt in all thre.z q(xh;m /cca gem.xb14cc1c e resistors is equal, which 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 ri)yx ar/nzw1x;n5 .gvdght represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whi xy.d 15)n vna;wgz/xrch 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 follow*i7*6aochplb-4qp: we4f a owing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 a4w w6oh7e* bap4q:laifc -op*re 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 im54 q4eqkgnh;bgi z4;tfcu: 4s brighter than bulb Y. Assume all circuit elements are idealu4fq b4mg4z5k:g it4;eqhn;c . 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 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 idengof5 ks(3k) vetified resistor in 5 secondvo5 gk)f(e3kss 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 tj 1 d7hmflo5+vhe following simple circuit have the same resistance, which would dissipate the greates71dvl5+jfm oh t 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 circog to6gzr.c8t1 kv04p uit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V.vot gc 14o8 ptz6r0kg?


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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 conq*p/n+sfu t2 j,onq )nnected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissitnousfq/j p)2q,nn *+pates 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 ) lt:gv7s4nw(imjx8aR1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V acro naw (igl:j874vs txm)ss 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 is the maximum r.4zutcqtuh, cia t8e k52p4e d)uja-1l, s+xvalue of the cua.zui r e)x ,t5j dh81-upq24ts +u,lkac tce4rrent 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 resistanq,n;o7ix-ff s eb(em+ gag9s8ce of a 60 watt lightbulb designed to operate at 120 volts?8 -fa7bmnse9q(ge +x s,foi;g

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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 e xldyb3xd*g.-.leak-uj;,w through a 4 ohm resistor that is dissipating 36 wa-d3ed j-gx * kl.;e axlbu,w.ytts 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 to press clothes is marked "120 volt, 600 watt.”um t 1vcyy4(l9 In normal use, the cut y (1u9mclvy4rrent 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 produced by aft;zm m( v5b1ufhj :9a circuit containing only three identical 6Ω resib9: tau m;v(hzmf15j fstors?

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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 e3cremc h)3u08f weyjm9+ nu3 three 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resir3c 0ye +e3hj e n89mm)w3ucfustors?

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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 conuv( ou+o+xc z2nected together in different configurations. If all three resistors are used in a circ+(uzv2u+ox o cuit, 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 x*dsv7vk .qkg+r 5t8q connected 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 bvk rd8qg7*s.k5xv t+ qattery? 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 ;ern* -s,)fi:fwng v z1 2nnw(xjri*p R1 and R2, are connected in parallel, the equivalent resistance of the combi(-i jifnw e 2:nrvw,)*pg1zsf*xr n;nnation is 5Ω . 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 operati, p0d4( ew-:yr:twqooi) r i tjgpq,0p42wnoc ng atyw4rngjoi p r:o)c: t,-0qdoq we wp ,4(pit20 120 volts. 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 b/m* fi6i.hf kohm resistor that is dissipating 36 watts ofii6f.b fh*k/ m 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 of current when v:6ec9i/f a(f2 s2ln 87 ushbp( uzbcqconnected to 120 volts. If thl7u vsufnf/ec(s a:b 2cip (2q z9h6b8e 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 hqh- 7l1q4v.osi)a jymh+e;nhow much would it cost to keep a 100W lightbulb lit continuously for 1 year qhjy+h iaho. e7v;m)nql-1 4s 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 resultrzltm5m:b-2a,dw c s-hhz u20s in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the ligh-2m r s2w0 -5,mulh tzdzb:achtbulb?

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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 famiy8p56gje hzp;( e0fqk ly of six owns a computer rated 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 (5eqfz6jpy 8e0;pk ghcomputers 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 sezhv mr5,4(c four resistors to form a simple circuit as shown m ehc,v5 srz4(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 resistog z(ira*q7t*vjw i 8.krs to form a simple circuit as shown to the ri.i8r*i q(*wtzvka7gj ght.
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 three resistors a q27yt p2,tcubre connected as shown. With the switch open as shown in tty p27,2bquct he 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 resistfgdkvgtp cbc8 8, c1(6ors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. b1( 8fvgg tkcp6c,8cd
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, aen 5 a hoba,qwg,zgwr,*:c28bn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the dio ba5b:gcqh,e ,,wnarzg*2 8wagram 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 tiom4z-g6 lk5o he equivalent resistance? Assume that all wires are ideamokz5o64 - ilgl, the battery has no 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 circue7. ay(j(9sn 3zfnpm eit shown to the right with resistancejmsf7(3. z nean(e 9yps $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 iby gy ;i(q:pd) v7qk)xdentical resistors connected in a combination series and parallel circuit to a voltage sourc)p)yqdv(7b:k gxq yi;e.
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 abb2fn 5lgb w4;) hw zije .csm0arw/02 combination series and 2 w4 / zm)s 0gl 2i0brejnf;hacwbwb5.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 circuit diagram, all of the bulbs ar z5h:pmr8i 5r6c0l mmme identical. Which bulb w5lr8iz:p6r hmm0 c5 mmill 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 three resistors are i4vhrd+e/u0 -q *n5iyy6 j)jtpd1l f cconnected as shown. With the switch open as shown in the diagram the ammeter readsrjhv0elpi 1d qntu-ci5 d64/)yfj +* y 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 swivhc4gf62bdcz 0 b ;c1itch and three resistors are connected as shown. Wibd1zv6;b g c2f i4c0chth the 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery,6 .:)uhrsicbo8 xfk6 d an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter read66cfx) : dobir.uk8s hs 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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