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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, p.0c6pcxl / o(s zcps)fl1d)ban electric current exists in the metal resistor connected to the battery. Which one of the following choices best de l/c1psc)(cldpfo.sb0 x 6p)zscribes 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 resistorsvy. j8m .m6,lvst+cgw are connected in parallel, the_________each resistor .g v.c+my8ltj6mvs, wis 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 causes the fi ljh /)-wvwl4 w;0xxdr;d lgv y-01dodlament to become white hot, while the larger wires connected to the lr;x l -)vww dj/gdl -004v;yxhwd o1dlightbulb 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 wi(;y gnf n2qj,0wq5e flth LEDs. LED is the acronym for which one of th2eg n jy,n(;0qwq5 ffle 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)65ro ps)pxaa has length 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 the old resr)5p paa6os) xistivity 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 cwrytkd: e(+g0b) v:rv15rr7 mm4bzgare made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has rzgr 0(:4t r+vwy:ekb rdbcmm 5r v1g)7esistance

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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 the diameter and hbs -8-w(6xqu8pld /eklqk/y walf the length of wire X. If wire X has a resistance of R then wire Y w qlpw(kk /u 6lx-y-s deq8b/8would 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 of mater* 3enngr ds)o*ial is then d3e* so*rgndn )rawn so that it is a 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 9 rwkh k/jx)w0a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the ligkxk)0 w h9w/rjhtbulb 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 . 91g j )xbma;r:kpxs/)awv tylength and rad tp/9aarjkyx b:) xm.);1 gwvsius 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 .i80brz ; tgbga 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 fourth resistor.” gr0g ;bbz i.t8 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 acil/now- yw*96ue m rh*companying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. To9elr6-umw hniy w* */he 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 tiw043,(jvzqx+p vj ythree bulbs 1, 2, and 3 - represented as resistors,q jvy3+w0tx 4p (zvij 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 simpljbj l.:h+t eme0n3u q0e electrical circuit at the right. If the current in all three resi3+hn 0 t.l :jqjbe0eumstors 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 right represents a simple electric cs a6eqatl2f */ 04g7 +k yp-s*cjkhqioircuit composed of 5 identical ligh gq6a+e-2ok*a cs k /j *shflty74pqi0t 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 s y;s6wanvrw+6tatements is NOT true concerning the simple circuit shown where resistors R1, R2 a6wwy6v rans +;nd 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* *chqiltu.q1 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 *qq *.ul t1hciof 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 througaiq1n0 0gc7kth the identified resistor in 5 seconds once the circui07c1ng ia tkq0t 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 th5zpmj+nzd dsr(j+ g8uw6- ,fge following simple circuit have the same resistance, which would dissipate the greatest psfn z5 jjz gd-8pd++,mugw(r6ower?


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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, thecmp5 1bb -ans oytm-i1/9 lk7s current through the 6.0 Ω resistor is 1.0 A. What is the power supply voasks1nmt/b y--b9c 5 ipml17oltage 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. Suppz7a lkto.(;5 mc iqi ry;:ow 8)zwddt1ose R1 carries a curtr7;moz)y.5: dkwzicot(d1 aqw8 il ;rent of 2.0 A, R2 has a resistance of 3.0Ω, and R3 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 R1, R2 a(n7tm0wf- um m (k4vukndR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R 4w7munt0m(f-kk mu(v3 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 any89okx1xs+tn xe1 uz1oq)x1sd 120 volts. What is the maximum value of the current under these constzx xq1k)11oy u+19 e xsoxn8ditions?

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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 d jf*q-ot gj8 5hr9fgm2esigned to operate at 120 volts?*mt2f 5f-goqjj8 9hgr

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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 is dissip /owh*/e dreoj 51;entating 36 wa etonw1j e5e*/ do/hr;tts 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 p sj 1f newr7.xjn .((vufp-bl1ress clothes is marked "120 volt, 600 watt.” In normal use, the current in it is enfn (f1w7.-r.(v1jl up xjsb

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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 3wq :8quhyf2 eby a circuit containing only three identiu2 q3ehq8w f:ycal 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 of the f+mt8 l c5ulv5tollowing equivalent resistances CANNOT be produced using all thre85ttcv l5 lum+e 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; 0om dszb1 a (z19vkwoqco3,b values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produc; svma z3o9c10qd(,bz1 owkobed?

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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 resist*ih7 per h4qv0or 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 connected in series using the same battery? Assume the internal resistance of the batteryhp0* v r4iq7he 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 connected in paralhstq- p q)5j6mlel, the equivalent resistance of the c jh-ps5q )6mtqombination 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 s, :/lq 0n2hqmad: kzubuch that it has a resistance of 12Ω when operating at 120 volts.q/2q nl,h a0mz:bduk: 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 wo)hb gf3px4; ygqz, zp) v)yh8atvz8yofqg)3p z )x, y4 gbh)hp;ts of 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 )*zw x2nbjgx re5m3/dg+ mrc7 when connected to 120 volts. If the price of electricitrw32dgzc*rm)n + gmjx7 e b5x/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 it cost to keep a 102u+ 5fcv dpjj00W lightbulb lit continuously for 1 year at a 5jdfv0u c+p2jrate 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 results in a powu/u,.y p,q;yrpri(js*w+xfos l n /(h apb;4rer of 24.0 W associateqy,;p(f.jx/+npap, rs/h uyr4( sow lrb;iu*d with the bulb. Which one of the 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 jnvtcn;b v3- /computer rated at 500 watts in a 120 V circuit. t;n -cvv3jnb/ 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 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 connectedswx ;dpbf-ntoz :)7haif5sl .-dm57 g to four resistors to form a simple circuit as shown to the right.s-5lhpf m-zxt 57ond :a.s)w; bg7dfi
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 simpn-,q54kdbc ly kz0rj3a ycovl42 m;l0 le circuit as shown to the rightcl oj 4r;ckym-q 02,0 lvbzkyla5d4n 3.
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 idealm0h -eq-k8rmn ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammete-enm -m8kh 0rqr 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 resistors ar:9e:dfs,+2 pebt bi ls4k6zcfe connected as shown. With the switch open as shown in the diagram thfi,+c szsk:46tdp 9 f2b:elbe e 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 a;3bidw6h i/fsmmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the bdih/3s;w 6ifammeter 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 equivalent resistanckf4l6z a5.gs ve? Assume that all wires are ideal, the battery has no internal resistance, andz kv.6fas lg54 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 cir5f(0lafmba nz 7i: 5zlcuit shown to the right with resi5 bnf7im0zflaa 5(zl :stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ch 02tmd+,qcb ponnected in a combination series and pa0b,cqh2pd+m t rallel 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 connected in a combinat;:9tpveo3k szl(7b206msz jcvwea5 qion series and v 3 ept5cbqolwazsz7km2;e:sj(v690 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 circ+lxmf9d+x gh b:c1u n0uit diagram, all of the bulbs are identical. Which bulb will be the bnm10+gx fc9ud :lh x+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 resistorx6o hdvb:4jza7q;i4-8zh :mb )t4fl zcy*pucs are connected as shown. With the switch open as shown in the diagram the ammeter *7q8:ou :pl vat-d 4xf4hjyi)zbz6;4mz cbch 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 ideah97z 0mxr.xx fl ammeter, a switch and three resistors are connected as shown. With the switch open as 7x f9z0rx.xmhshown 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 ideal ammeter, a switch and three reb8 n;mril nn 7*w)khn:sistors are connected as shown. With the switch open as shown in the diagram the am7;iwnk) r: l bh*nmnn8meter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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