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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 curreo3q fj20o9 mtknt 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 electr03 ktq9j2 mfooic 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______i+v 5ve58qb0 l gur.vy___each resistor is theb5.eyglrv5 0 vqiv+u8 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 causese;u8a:sie6 7w gae:).ehwvk8u7 kvl w the filament to become wwlv7i:. 6ahk v:8;)8e gweekwuaeus7hite 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 rep1 sm;go:d*kdo-y-p amlaced with LEDs. LED is the acronym for w 1ydd o :-g*;mmo-paskhich 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 L and cross-sezmsw, 8k2y1kl ctional area A. It is to be placed into a circuit, but it first must be cu2 1s8lykw kmz,t 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. Wire II has twice tl43qtt/ficqaf7 -b. a * bqict0a*ph0he diameter and twice the length of I. If I has resistanq.t 0t3laia 4 b-/fbh*q t0 f*7iacqpcce 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 the diameter and hao;cntd( rm;(qb it): mlf the length of wire X. If wire X has a resistance of R then wire Y woul(tmnr d; qmtoc;(b) :id 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 r 76 smlm, zznl-.oti5resistor has 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 mater-l6m , rtz7smin. lzo5ial 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 br8q.(fftd5nmm nyvh l750s1roighter light bulb. He decides to mo yr5qh10osmnfmvt5 (n8.dl7f dify the filament. How should 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 ajr; 8ystwhl p:klw ,i88q*f.bre made of the same material. The length and radius of each re8j8s,i q 8;plwhr:k* tf.wblysistor 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, t;5rk.re6niup vr e+*4mxsa: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 6 *.m tspi:+rexuvae5;n4rr kseries 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 di fs+soo/j;n* aww00xsagram has internal resistance 10.0 s*;0wsojax+ s/ 0nfwokW 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 circuj-6k poy -dz3c)m0vbx it shown to the right. The three bulbs 1, 2, and 3 jy0k6 )-op z bmvc-dx3- represented 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 gxq+ a/gta +t2current in all three resistors is equal, which of the following statem+ gqtxa+ag2 /tents 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 r .r q wbad*(10lreyg0mepresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whi0wdr 10emgr* (q ylba.ch 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 concerninxc; yy4-qx di(.e3fphg the simple circuit shown where resistors R1, R2 and R3 are hav qd(-hc x3pey;xy.if4e 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 confp54p:, ltlq :*nh7luomgoo9 nected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements o9 ohfnp:,4mplull :7ogq t*5are 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 6(k jdzcc-mq.u3hg ,l/v-zyb pass through the identified resistor in 5 seconds once thck-m vgl.zd,3by qz (uc /-jh6e 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 the following simple circuit have 4an/jl 3aim1jft2. djvull 7w9 i7 rm1the same 1ljai 2 idm.aun1 94llf7j m3/wt7jrv resistance, which 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 accompanyixtm95j p6+hy zng circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. j5 z9thmxy+6pWhat 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 Ra5o0j)*zcr:j +baw;zrof.vx yk9;bu 1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, u 05fovy;rkj9 r x+*z;owjza ): bcab.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 andR3 are c :wam si,w565j0bg;gm k .iaoyonnected in parallel to a battery. Suppose R1 has 2V acrossas a,bokwgg: i.60mwi5m;5jy 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 1qv4sbjbag2 xh+ z+aqm+6,4 f w20 volts. What is the maximum va4 zgvb,mxaw6+b +qjs hq+ fa24lue of the current 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 resistance of a 60 watt - qt:/ ,-jhe2tgbx uanlightbulb designed to operate at 120 volts?jgtq-xet/-u : 2n bh,a

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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 disrj;ij x, ,() zby bfv21avvxm1sipating 36 watts( 2vbvzma br1v)y;x, 1ixj,fj 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.10 d6twx;*sk nltqdzr d-/gb/ ” In normal use, the current in it isb-//k dddztsnxr0lw*t g q 6;1

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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 zqv0r,1 ry0tcz* p4y ube produced by a circuit containing only three ide0 t0qz 14 r*yvuycrp,zntical 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 following eqhqd pzjt q 1hoax*+*(un:2m;m/ju +ubuivalent resistances CANNOT beu /uxp;*tj ahdmmo1nqjquh+*(zb2 :+ 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 c5nh 5fm-*ictvonnected together in different configurations. If all three refmciv n55h* t-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 resistol,s3hzh k72)ne jx8;mcqx v/k x pv*4sr is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit ifkq m7 3khhxsjzv vnl8, c2s4) *;x/exp n identical 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 resistance R1 and R2, are connecte3uwnnl8p 2 0m; reqm,fd in parallel, thrmlufe nm08pw;,3 2qn e equivalent resistance of the combination 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 whe3d8stgk1 j/om s qzl*8n operating at 120 volts. What is the minimum amount of time that it would take sj3z tm8d *gqso/ k18lto 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 dissipatj3z.x 3o kj6vsing 36 watts of p3 kzojvxjs3 .6ower?

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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 120 31nw)rwq e .anvolts. If the price oqwwn 3en1)a. rf 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 how much would it cost to oqlmk6s/ vlbr sa,tw-(l d*0) keep a 100W lightbulb lit continuously for 1 year at a ra ,l*r/aswds6q) l( m l-kv0obtte 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 4sfubye+de.v1 5 v9,h t.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of t + bvye9vd1 usfthe,5.he 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 oe6,40ju .wwr(qutbwv f a family 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 r0w u jbvw,4qtue(.w6 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 batt1jf-m a+g*uhx ery is connected to four resistors to form a simple circuit as shown tohf-a *jgu1xm + 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 co;vw bbd, n+tlt.(:oomnnected to four resistors to form a simple circuit as shown to theb+tld :wtbn ovm;o.(, 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 switd**i5+mwrl+a - bpk;xj: rmmkch and three resistors are connected as:dx * rkkm+m;i+jr mpa5lb-w* 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 and three resistors are conn-2is:us:lytpn 8wzyh6j q- v7ected as shown. With the switch open as shown in the diagramtp:-2i :78hwjvqn- syzls6yu 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 ammet3wkzi em8)1(ee;f2z7g9fw vz ,uo noh(;mklcer, a switch and three resistors are connected as shown. With t3z9z2 m,kzl(uc ;1 8h k;i vwn(owe eo)7gffmehe 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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit shown to thep,7)tlkb4v, wowp*o j right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resist wbt l4op,)*v7k,jpowance, 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 resi 7. b48ufl(k7)ktel 6i4lljwq fusm6 istance of the circuit shown to the right with resistklf(il7. 4j87wl)f lqstuui6keb64m ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 y ysnl.ubr r740 8f, :kkxnw0kresistors connected in a combination .4yb kf00xnr 7,8: ksuknyrwl series and parallel 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 identica-ax; o+p4nc lyl resistors connected in a combination series ax ocl;+ pay4n-nd 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 of0znx 4vl 0yxt0o o6a0p the bulbs are identical. Which bulb will be the brightest? n0 y 00ozvalp4ox6t0x


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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 wfgrg 6)lno;)-z8 m excz fj.2resistors are connected as shown. With the switch open as sc;mn)lf.62 z ejgrg )xow-z8fhown 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 ideal ammeter, a switch and thre r1czticlcdv0:. ok, 3e resistors are connected as shor 0cdk.3lvi:c,1ct zown. 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, anvs a-2i o.n2mm ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in thno- amm2 i2.sve diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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