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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 metafihdks;1 y p17nk, .kc h,tc* gnjlz7.l resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through t.c l,jts,1z.k77h;nkf1gy * kdin ph che 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______ g9* o+rngek)h0e8qav ___each resist 8*+9)rn veoe0kaghqgor 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 a lightbulb c6m/ qyph)n; 8yfr v3oj(lc )ucauses the filament to become white hot(qnj)hfcy3m8vpu /r) ;oyl c 6, 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 lights are beinmycki 4 g)v(e/s (r2whg replaced with LEDs. LED is the acronym for which one of the following g( v/mh(k 4ir2)ysce wchoices?

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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 resdhxg k3w .0t4eg(:r kristor has length L and cross-sectional area A. It is to be placed r.t30hg k:w dg kr4xe(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 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:otbo a ,yl.,f. Wire II has twice the diameter and twice the length of I. If:o t o.a,fb,yl 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 materiueaui8a -m5 4nal but has twice the diameter and half the length of wire X. If wire X has a resistance of R then win8i -5uma aue4re 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 res / z25mkb *glx-mvcx+reywjj sy954y 3istor has length L and radius r. This piece of material is then drawn so that it is y5ymrx-kye/ scx9+ *2g wzv4b 5ljj3ma cylinder with 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 bulb. He dexy;(fg g 5ef9vcides to modify the filament. How should the filament of a lightbx9( e ;f5gfvgyulb 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 cylindrinbn 5o.bjgn)c,lf73x0drnt4 cal resistors are made of the same material. The length and radius of .cg n t5bxno3 r bfj7,0nl)4ndeach 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, akecy)g2 q *ejh-0dfe. re 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 cyc2gfhkd )-j.ee q*e0onnected 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 in5xe4pr7obs k-whc 8 +lg2moo+ ternal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Theoo- 8cg7rsp ++we 52mko4lbxh 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 thrn a ;i,zvx:u-xug um41ee bulbs 1, 2, and 3 - representedx-g; z uax:vu4umn,1i 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 at the right. If the current in zvqfjn2f )k ll/qy;70 all three resistors v;)qfq70y2k/zjn lflis 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 right represents a simple electric circuit comv 1rx7.ia btobl3y3-mposed of 5 identical light bulbsv.37bryxi-3t1b oa lm 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 concerning tnfwd;uq 2d m;1kgq/+nhe simple circuit shown where resistors R1, R2 and R3 are have e2wdn/nk1 dg +u;q ;mfqqual 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 anrs l3rk 9w5m sv/x;9i 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 tnwrsx 93ik 5s/l;rm9 vhe 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 i-ulc 7m nttad0e4w5afr7 i-0lh96g vh dentified resistor in 5 se vt7m7thal l90d04 c-unieh-fg5wa 6rconds 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 i84gs2cswo +sdn the following simple circuit have the same resistance, whics+ws8sdog 2c4h 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 Ωila m-1n(8j70z; qqbn/n d2 ynkn0val resistor is 1.0 A. What is the power snd(z2j nqmy8qi;a bv nkll-/00 17annupply 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, an *ka bnjp0-.4/+uxuclzt4gi v d 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*ug4iul4t +bka/ zc.x0j p n-v 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 resisto *h3 odqm-oir8rs R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current ihd*-3o roq8mi n 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. jzql 34k+lgw0 What is the maximum value of the current under these condiz gk qjl03w4l+tions?

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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 operarmbi(1 c o*)swte at 120 volt wrsmo*bi) c(1s?

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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 througl 3vcbx0 1mr5ch a 4 ohm resistor that is dissipating 36 watts of power?l xc brm503cv1

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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 wx5q5j39l 8wha, shlzused to press clothes is marked "120 volt, 600 watt.” In nors3xj 5,w8lwah zh95ql mal 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 resistanceyn* fz ftc 58f,qy,hh:s could NOT be produced by a circuit containing only three identical 6Ω resistoryn*cf h,f5:h ztf,q8ys?

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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. Which of the following equivalen ps4)o yyhlxp84wu.jk6ds.y ;atf.m6t resistanc.m; f8 xap6 yy4d.pw ls6oks hj.u)4ytes 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 connecleq;8y z()t sb( 4wtpcted together in different configurations. If all bsy(;zp) 4qe( wcltt8 three resistors 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, au hk ,h yzlvg5q0+ef*oqla)-8 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 thvqfqy5kh0h+uo*lz- l)a, 8eg e 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,h k6c cf+5u 23iuuk(; zzyco*c are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about thcco;f3+*h 25cuzk(ukiyz6c ue 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:7y 6fok4 /cxply ma(f 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of fmyacx(: y7ko46fp l/ 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 4w/k5x)pnrjh gz u 0vz.c+a15e ohm resistor that is dissipating 36 watts un r5 hgacz/k0pez wj+v1.)5xof 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 connected to 1;:y dp(2(jvakdzdxtu a62t ,g20 volts. If the price of electrt(vxk;aa dd, (tj2:d6gup 2zyicity 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 toq8y 3pm;j 7igz :m0ucn keep a 100W lightbulb lit continuously for 1 year jyimq8 zcgn; u:70m3p 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 ressxzc ar.k() 0pults in a power of 24.0 W associated with the bulb. Which one of the following choices bes0cz)p .(xarks t 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(l.nq7xz ys+gt1lit:e8uu 2 e computer rated at 500 watts in a 120 V circuit. If all computers are plugglel :ui(1gtnz7su2t8q . x ey+ed into a single 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 battery is conn98 gn cfor-yryh+plkce1c- ; ;ected to four resistors to form a simple circuit as shown to the rig-9rc +1l8hry cfe-;k;c pyng oht.
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 y/a/w2jm;x t(ske 5xdis connected to four resistors to form a simple circuit as shown to the rightjx;/s/ke wx(d5 2 tmya.
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 batter 8ry*02hrjlt nt i:;sgy, an ideal ammeter, a switch and three resistors are connected as shown. With the switch r:gy;0tthn2r ij8*sl 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ammetersqk sa pua4,ue 7koj),0d3a.q, a switch and three resistors are connected asuapsq,)7e4a 3u kjk.0o,qas d shown. With 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal amme,ybo)2m8ni9 bsdl b+j ter, a switch and three resistors are connected as shown. With the switchjbbib y, +omd) l29sn8 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 shown to the right, whj7 km)g: 9nq5faiqn3 tat is the equivalent resistance? Assume that all wires are 9qqg ma)n5 7t :3jnikfideal, 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 circuit shown 4;y awr,j*pmr e0rku9k sh29b to the right with resistaw9y0skrp rma;ub*j2hk 94, ernces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resijhutiica prvm7qh b72/6 p(0(stors connected in a combination series and parallel circuit to a voltage vtrp(( 7u0p7h bciqi/a26 jhm 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 combin ,;u4ermdkrj d z(*u1ration se4 u ;ruddrz *(jr,e1kmries 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 circuit diagram, all of the bulbs are idi*nu0fuwm7 g- 4o2umsentical. Which bulb wiom*um-fwigu 7 240usnll 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 ammeternr b ,/9-tbnuw, a switch and three resistors are connected as shown. With the switch open as shownnb9,n-twr/u b 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,st( 4kr92uh7f(vinhb an ideal ammeter, a switch and three resistors are connected as shown. With the switch open h(4v7(i9 bunf2ksrth 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, an idoqv 9w:qw:: ce ao8+zfeal ammeter, a switch and three resistors are connew:zoc:av q+ 9fq:8o ewcted as shown. With 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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