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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 esr2l,; d /jb;qavc bs*jrd .k6xists 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 electv 6b;; ,.c dljr*2sbj/akdrq sric 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 conn1w7c tn0wufw d- bl,:wected in parallel, the_________each resistor is the d7nwluw -1 0bft,wwc: 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 wiecjy23re/z *hre of a lightbulb causes the filament to bechr y2 /*jze3ecome white hot, 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 being replaced with LEDs. LED is theso5jrn* f6 4xh acxjh5 o 6*4nfsrronym for 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 length L5 247d oj ;eq+x)hgog xh x:jl/frro,j 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 newhx:;x +/7,eoxorfj5 g4 rhjqjo g)2 ld 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 tzfkd-j;iz,* ; gf+icf2+j g hbhe same material. Wire II has twice the diameter and twice the length; f i*g;c-d jb,fzjk +z+2hifg 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 material but has twice qd;;9 k 07omss2 uen:lew mtz,the diameter and half the length of wire Xu;wq7, ;:02n eeostzmls9 mdk. If 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 has length L and radius rr-vr8wkkp,7f 8 zcf+m. This piece of material is then drawn so that it is a cylinder with new8kfmk-8z7pr,+f vc r w 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 f66 sljoyj2a * .we-fs/jf;x ,gl jby.light bulb. He decides to modify the filament. How should the filamenf jf-6ex ywjgsj,62 */.lb jafls y;o.t 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 made5uojx rp,k6 q b,50ts0mygw )o of the same material. The length and radius of tk 5u6bq) p05o,xjoysw0mr,g 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 connect 0hbuy 7 .v/wshqq59iwed to a battery in the following way: “Two resistors are connectq0b95vuq.y / h whsw7ied 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 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 habc2 g3b ;wndlm5fg)t 9s internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohtbwlg gdc 3n)9fb52; mm. 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 o(fc9t.c8cj/tc nq3wg y:n .x1, 2, and 3 - represented as resistors in yj:to3xfg ct( cwc /.c9.n q8nthe 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 allmzb , r5 ko6u6*acs(zx three resistors is zam5*cs ( u x6ozkb,6requal, 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 com5o- qls,yyql;posed of 5 identical l ,lo- y5s;qqlyight 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 concerning tfg ( gz+ abwb*gh:q,9jhe simple circuit shown where resistors R1, R2 and R3 are have equal resistances? *:zghbbw+qg j9, a g(f


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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 f*jo fyjsvf4 p0)w*6g+ qy2hp in series to a battery. Bulb X is brighter than bulb Y. Assume all chy42 vop)qg j0*spw fj+f*yf6 ircuit 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 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 resxk*ojc/5kvc7 mr ax62x v cn 8gck-o+)istor in 5 )xg8vo 7nk xj -+m/ kc5c6x2aockr*cv seconds 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 resisw)8 ueab,d03bvj (c kbtors in the following simple circuit have the same resistance, which would dissipate tha,kc wv(8e3dbu0j)bb e 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 circu2w u l:a7,on,fovg1mv it diagram, the current through the 6.0 Ω resistor7,2vo 1ngm :u folwv,a 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 resistors R1, R2, and R3 are connected ins5k71mobwy 7 d series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dism sk1d 7bwy75osipates 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 R1 jr nv 6 mqnlll1f6,ury2;;xz4, 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 cu l lxn6q6vnf4;1 ;,lrryjz mu2rrent 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 29gkz7e1uk y 9kv6pgld9 xc h4(uor3 c120 volts. What is the maximum value of the current under 3(6o9k4ygz kx h cv9kcuuldg2p1e97r 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 wat4mhixmp 3f;msr*p7- +i-ch vreii11 r t lightbulb designed to operate at 120 volts?f4iic ;1-i3mhp1rmvr e rhm+ s*i7px-

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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 isbg 6ap*fw;wsir.* 7u(rqqnh,gw 2 (dl dissipating 36 watts of powpa.*;(*w,rg sw(bqf6 nd 2g 7uliwqrher?

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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 wa,ol,9 *o lof(z hxyz0va 9x)wytt.” In normal lxfhl(0 9*woov,),9yoxyazz 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 resistances could NOT be pzovh7 u mw1h2ap.l p69roduced by a circuit containing only threemp.7vh1a uz9l o2p hw6 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. Which o8+ 4(pjx nfmazf the following equivalent resistances CANNOT be produced upz4 jn(8+ mfxasing 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 va .jf o klww0o)s4jfjl6.2qsb0lues can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of .of6wblq0ks.jl w2s0 o j )f4jtotal 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 resistge4.lm 9 )po:cti7hutor is 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 connecgo: 7ci lpu.9et)m th4ted 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 resistance R1 and R2, are con1/feicgt n05 vnected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the ecgif/ vn 501tresistances 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 degk)9cyiy q v8+n5oxxn 1.8jq ysigned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of 9c+5yg)vxk1q j .8i8xynoynq 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 t bloh9on 7:hxu/ e,l( -,ybbnohat is dissipating 36 watts of powbuloo/n hxh ,b:,ny9lo be-7 (er?

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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 acle kk+z m0.g6a1e6u qmperes of current when connected to 120 volts. If the price of electricitu6 ee0cm .gk61kzqa+l y 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 sm6;3eh0x opk l3.r(ba :atvq it cost to keep a 100W lightbulb lit continuously for 1 year at a rate or:v (e axks 0tmobh3a l;6q.3pf $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 results in a power of 2c f :j0c7cjr ki0r 6m7fb55nib4.0 W associated with the bulb. Which one of the following choices best represents the resis5 b007kfi6bc:5icfc7rn rm jjtance 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 o4i.31dboc fhwatts in a 120 V circuit. If all computers are plugged into a single circuit protectedih 1dcbfo4.3o 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 connected to four resistors to form a sim: e)hc2trncr. xl0rt y:c3q g-ple circuit as shown to the 3g. cc0 n ::te)htq-xrlcrr2y 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 sim)sdj f )skc(u3ipif+4ple circuit asp ks)jufc d3i4 is+()f shown 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, a switch and threehn hca)0m z5k k01yej9 resistors are connected as 01k)h na5hm9yzk 0jec shown. With the switch 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 ammeter, a switch 0jsjru pn h3 3gpddr12llb/73and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amper7ls rpnj3d j p0b 3gdu1r32lh/es.
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:b9ysi9xwvt/4jx7 2zz5k d- d o8xyuh resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere2 xyvyus i4 5x/b8d7x hzoz9w-dj 9t:ks.
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 resistance?0 :;ftzn. +m i2oojcr4)+fbt dw ;ompa Assume that all wires are ideal, the battery has no intec+np2m;:rwafozi tdm.ofj;b 0o ) t +4rnal 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 th suxl mjfs 1y(* tu227,oqmv9je right with resism2 ( x97*vtuouy 21 lqsm,jjfstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 show;tzqlc60j*uwm u w 1c2s five identical resistors connected in a combination series and parallel circuit to a voltage sourcu0;ccm luw21zw*jq 6te.
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 identicoqpk6 jjxp7ob,3. y cdwx (+,v p3ky3kal resistors connected in a combination series and parallel circuit d.jpjpkyb6 3,o3 qwv+ (oxk3ckpy7,x 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 bulb25dae( efz f-*v2ujgqs are identical. Which bulb will be the brightest * evu2gqaed25fj-(fz?


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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 batterrl/r 7 7 qzlze(+w5xzzy, an ideal ammeter, a switch and three resistors are connected as rzr (zel/xl+z7 z w7q5shown. With the switch 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 battery, an ideae(c a9l;x0rkvl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeae;v9k(0rcx lter 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 s24z8nwdtws z+)dp .w he 2hc2and three resistors are connected as shown.d zwhcwd. +en2sh)zt4282wsp 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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    总分:50分 及格:30分 时间:不限时
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