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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 curre;hk 1 dkt 85flq.*wrownt exists in the metal resistor connected to the batteryqo dwhr1kkl8.* t;wf5. Which one of the following choices best describes 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 resistors are connectedonq*ou2v9 mx 0 in parallel, the_________each resistor is the sx9qmo * vo02uname.

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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 jl c e0unlv(*r -*z:odcauses the filament to become white hot, while the larger wires connected to the lightbulb remain mdeo(l *c *vj:-0 lznruuch 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 l lmx)zu*:bnqum6lez))5sz y1ights are being replaced with LEDs. LED is the acronym for which one of the following c*y:)5ue mn)lzz qbl6 1szm u)xhoices?

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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 area A.to-q1n:c0o0a5 c7lb*2fb njq.ekrxh It is tof*c52 j7: ob .kabr c 10tonhq-xnq0el 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 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 maa fyrp ndpr.vp9j m(( o5-(sv8de of the same material. Wire II has twice the diameter and twico .5(yv(jrms9n rfap(8-vpp de the length 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 bbp zyllq.0 )7jut has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a .zb lyjql0p)7resistance 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 leng, p9 m2zfcfepv;f5n66 b7adg uth 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 material;pe ug56fndfav,92 7f zbc6p m 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 bn ;jhakmu:4 9c gy3o*tfou6n0ulb. He decides to modify the filament. How should the filament o6o;:3ju 0u t9kng mnh*yfc 4aof 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 cylindrica ohqjbii28 4n-)z+gu m 6jcp3ix1am,ul resistors are made of the same material. The length and radius o hu8p ,iim 2ozb mj-3q6un4i+xg jc)1af 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 be3nly,vk y.:pi: jd6connected 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 jdbykn: l:p .ey3 6iv,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 i9l4oqoonc m3;fnxdhj 8u+ n 3*n the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter ham3oh+8nnd3xun 9 of cloqj;*4 s 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 circuit shown to the right. T5 i:qiaa6o 5ibhe three bulbs 1, 2, and 3 - re q5b a5i6iaoi:presented 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 a,p,+u*smsc 6;rvgcs all thapcsm*s, v+r6cus;g,ree 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 right represents a simple electric circ26q52+ nlgvez olz )iwuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs) q 6 lzz)2ov+w2el5ing
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 the simpldzw;lb z:(hkf f(8h3xi sd*.xe circuit shown where resistors dhlfdxhbz ik 3.(fzw8(sx :*;R1, R2 and 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 connee m -kt0dc1gpbhc36t/0 r ne:ucted in series to a 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 the m-e ugr1tdbentp30kc/ 0 :hc6following 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 g :ui+ul4a me:through the identified resistor in 5 seconds once the circuit waluu:e 4m:g+ais 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 f*qiy(v* p xwb;ollowing simple circuit have the same resistance, which would dibyi(pw*vq; x* ssipate 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 th o7uj1kyf2 +d;d,cx yfrough the 6.0 Ω resistor is 1.f;oj,cddx 17fy2k+u y0 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 cv4p: vuylyxay:q*fv w/ sw( *9onnected in series to a battery. Suppose R1 carries a current of vls 9*qwy/p a4uvxv w*:yy (:f2.0 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 re5 f(+agi 1uv8mhcy7dh 0t p9sgsistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Whag1puc 8+0thm(ha79 if5d yv gst 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 1fk o9 g+k5+/z 2owqomy20 volts. What is the maximum value of the current 5qk+okg2o9oyz/ w + fmunder 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 wattuskystc ,x ;oms arj 4(u6/46l lightbulb designed to operate at 120 volts?mlro/ t4jcx(s6 64;u,u asky s

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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 drwtmr eb h/0d6hw96 3lissipating 36 watts of powerrh/r39wwtd6 06 e bhlm?

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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.” I/zzlf/ a*5)e.p k p fa1gf.ahyn normal use, the currep ffhea) y.*/ ka5p z.zlga/1fnt 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 a circuit con-*day)r bede(0lnvq,wt5 ik)tn 8m3 ataining only three identical *a3amdql)(ikn5-d 8t tw)0,re n v eyb6Ω 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-hp b68ath ywu 0oqf83 of the following equivalent resistances CANNOT be produced using all three resistort-f80a83y uh6 qh pbows?

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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 can7w d* l/lwf5dr :j r2hhgoo99flelq8 + be connected together in different co 7dl9o hwe5 ll/wl82 dgrr*o+f hq:f9jnfigurations. If all 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,ic/ z0fa2) 76b6t wwijb-szg+b f/ hbb 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 battjbzhz6b bf-f g07)+swbt i a62w/cb/iery? 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 asrkrpd )dg( i 8qtl6f.qn 6r8:nd R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements 6 rfn8(8i q .rddl6pt)qgrs:kabout 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 yp, zbz lqvz/2 bfthf39 (:q5kthat it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it kbq ( hqztzv9 y:3zlbp/f 2f5,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 i sk2y u. yzdf,3g+qh4ms dissipating 36 watts of zyq3.dky4mfh u,+2s g 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 +wnk3-y ruidb - p*9ujdraws 13 amperes of current when connected to 120 volts. If the price of electricitwy inbpukuj9 +d3r--* 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 itb4 - udxm*/hlo cost to keep a 100W lightbulb lit continuously for 1 year at a rate of hmld- o4ubx*/ $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/ tund nnrb8kric:ca :at+7hy ak1 0,* results in a power of 24.0 W associated nn 8 :*1dktb7y ,rtk ca/i0caruh n+:awith 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 9bdh4 -(pbgoi 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 dgi9h4 (op-bb, 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 simple cijgiwmb+3 q)g 7rcuit as shown to + b jwg)q3mgi7the 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 cojs g 4oz, k6b+us5sym:nnected to four resistors to form a simple circuit as shown to64bsuyo+ j:kmsgs5, z 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 thregz* m ,7sbr62pr inq9fe resistors are connected as shown. With the switch open as shown in the diagram the ammeter g9r*spq 6,iz r 2f7bmnreads 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 1v (jo (:j1cp4z gdsnmideal ammeter, a switch and three resistors are connected as shown. With the switch open as s1vjnsp ( :dg o4(mc1zjhown 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 ammeter, a switch and.*4yz:q31iaah kuikx three resistors are connected as shown. With the swq.i4 zu: ahka31xyi *kitch 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 tocy;:s: 2 hqoj flhvbaa;8/6hn the right, what is the equivalent resistance? Assume t fvh:h8qbn; /; lac os:62ajyhhat all wires are ideal, 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 9)e-ldpwam + l oo7z1stqb)ii76me 5cto the right with resistances o o awes5-1c+6l lt7b)) idmp 7qemiz9$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resisfl(c1(mt1 7dnvz tsy8ph q*o/tors connected in a combination series and parallel cm*p no(1zhyl qd/vcsft (8t17ircuit 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 con 4wx:hi, fr7ap o*5/b7tfjp2lz 2sk xfnected in a combination series and parallel circuif,p izat7f2b x o547rjhk*x 2 fl:/pswt 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 diais,( jutb k mkx 9 n-l,f04n/bdpaea+;gram, all of the bulbs are identical. Which bulkf,(x0 b t4nlius;d-+pbmj9ak /ne , ab will 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;o0*fe3(azpro g3)yo,e eb01 mzszjb, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. 1fr;zyse0 jobe )e( a* 0pgo ,bmzzo33
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 ammeu3htqftm)s 73hvkb.r de u 294ter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperestm u fe3 r9b7utv)qhh 23sd4.k.
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 rrl hc bky* tldk)h s:,:s;je(9jx 8v1vesistors are connected as shown. With the switch open as shown iny:er : vh 1*jkbh) v,(k9c8xsldjs;lt 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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