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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 elec (nhtx0-- f6m*- -ieo6wlbwrg qa1 fcytric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction mg-b *( f-lte 6 a0iy qfcnr6-1-whowxof 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 connected so2iq5sl i/ln;4aa7 jiwb :z7 in parallel, the_________each resisili5jb7q sa o2n ;4wil7zas/:tor 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 cau uu v*uh 64m2ck(ycvo6ses the filament to become white hot, while the larger wires connected to the lightbulb remain much4v6o6muyv kcu2(uc h* 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 bs s-lsy -9)abthe acronym for which one of the following s9-slaysb-b ) 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-sectional areaac9 st .vvbi7f0s,e ;q 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 ,.sve79 biv 0cqaf;ts 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 ipv l9s2/ a8*wxr*ojtmade of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II hasaip*/rtlwo9 vj* 28 sx 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 t/yt :v f; 5hs4s; cy+ff-pj hko8qzj:ihe same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wir p/hct jf- ;8ssjyq+fvh: yo4f;:zi5k e 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 has1d88t t ) h82dcnodbm;m-ljh w length L and radius r. This piece of material is then drawn so wj 8- h tc;8tl)mnd 1dmob28hdthat 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 maaoru/)jx. e u,ke a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at ux .au,o/erj) 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 ac58kxcbo nj scq1(2o- re made of the same material. The length and radius of each resistor is:qj8soo 5nccb( c -xk21
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, qxx1s;;3 fhviy/+q gba6e l 6rare 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 series to a fourth resistor.” Wxlq6 ;b+ e1sf6axgr;/ iv3qhyhat 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 accompan *, 8)qxk0wj+lmlj6jky ; -ejm5pyrhuying circuit diagram has internal resistance 10.0 kW and the ammeter has interna h)+ k xl-q,rj;pyk50 m*yw8jl jm6uejl 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 tm hrocut6;5kuq+07k.aun tm2he right. The three bulbs 1, 2, and 3 - represented as resistors 0uc u .k+t2oa7nkmqu65hrt ;min 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 cmtr6c sn v-q.dn,+ tm2urrent in all three resistors is equal, which of the followin t. 26nsc+dmvn,m qr-tg 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 complo*vne)vd+;0m*agr4 k:k 6hd rw -ocqosed of 5 identical light bulbs and 2 fla)vdmoor 04ken - h cw:6*;g+*dalqkrvshlight 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 statem1uk e l9.xbm8alzf09hents is NOT true concerning the simple circuit shown where resistors R1, R2 09le8 xf hu.zab 9lkm1and 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 coqi 5exbt bq y6 );xrpobbc6qi-t-.92rnnected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit 6qqt )qr;b 5.b 2ei-cobxbxy - ir69ptelements 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 e.; s*nt:hgyj6b* f bx through the identified resistor in 5 seconds once the circufx6* t*bh ;sjnyeg:b.it 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 fjkejy 0cw86s9uhl a u5)hg c)t4(y1noollowing simple circuit have the same resistance, which would dissipate thew0 1ej6cnotk(s8 h)95uly)uc4g yja h 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 accompany3zo;id rs u.2ying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power d;zry3 so.iu2 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 in series to a battery7;(9rqi zjd: oc*iht b. Suppose R1 carries a current of 2.0 A, R2 has a resista ot*ihz 9b;d:cr7(jiqnce 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 ark:kkuuwd);nj h8 u7/ve connected in parallel to a battery. Suppose R1 has kdn 7w)vuj8 u/uh:k;k2V across 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 120 volts. What is the maximjin z)4spev86 e;cc6 qum value of the curres6nzpj8ie q c c;ve64)nt 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 lightbulb designed f sx**u6nna*zto operate at 120 volts?* *zs6n* fxnua

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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 ab a+5ywy8ecpm 4l2cmvr5j )qqr dc86/ 4 ohm resistor that is dissipating 36 watts of powerl 5 + cqrbyavj2yqp5c/mr wc)d688m4e ?

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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 ng-s0-.l*whdqx6 8*sqs yq mfis marked "120 volt, 600 watt.” In normal use, the current g*-q s8l y-fqhw*m.q6n0ds sx 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 tw80z- y-bx zb,.evy g27eduzfollowing resistances could NOT be produced by a circuit containing only three identical 6Ω r- ,8-v0webexu7g zty 2yb. zdzesistors?

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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 thefs;7log;n ,ae following equivalent resistances CANNOT be prod7e ;aflnso;g, uced 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 ditc 2-xjl:ltyvn i gu;hz*: (s;kq)d+ufferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different valuev ht : xuqg)*; :+iltz;ds-cukl(j ny2s 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 batterv* 7vsak j*n 7kucod,-q14a ldy, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical reqko17d*v-ul ,csn7 *j ava4dksistors 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 an,rbi af7 sfy-4d R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about theiba,s yff74 r- 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 s1j:p -/qtsb nty2bpn) uch that it has a resistance of 12Ω when operating at 120 volts. What is the min-nspjty t :1/q2b)b npimum 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 3qrf tfkl; of/isf,5*j7o w6xll j902i6 watkoxr7lw,5fl;9jf/ i oftiql0s f26*j 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 amperesz, avo r6x yte +cvuv;90(ibe+ of current when connected to 120 volts. If the pricea+ be0i+ovr ;,t vx (ec6vuyz9 of 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 mep1:ct:j; l, 7td ivzwuch would it cost to keep a 100W lightbulb lit continuously fotci t,wjp71:dze v ;l:r 1 year 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 qjqr)6p6c5qn xmu-4hcvj 3xri k95l6 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbulb?j -cj9n)6 u 4iv5mq63xklqq5 p6rcxhr

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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 rz5(b5f/ s7z:tn 1nh -f dystuga awn (erj6r5;ated at 500 watts in a 120 ;z 167-(n t(yhnsfje uwf str5gnda:z5a /5rb V circuit. 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 connected t)bh f 2cw/m:bko four resistors to form a simple circuit as shown to /cb fmk2 hb):wthe 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 irr:+ xqm 0llu1s connected to four resistors to form a simple circuit as shown to the ri 1r0xuqr :+llmght.
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 ww0 r8vhkews gz+c+:,three resistors are connected as shown. With the switch open as vkew 0z 8rg s,:w++whcshown 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 r5zxy qpx/f/ xx:2n6z, a switch and three resistors are connzr zxxyx6x5/:/ 2f qpnected as 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 ammeter, a switch and three reoz8rzo7csqd,0 x.z :dzm/ y;nsistors are connected as shown. With the switch open as shown in thz8m oc. d;rx ,zs:zyn/0od7 qze 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 circui7s oe37 qsohd0t shown to the right, what is the equivalent resistance? Assume tha d h0eq7os7so3t 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 ; shd x67,pxqgr/d(xeto the right with resistance xs g/x,rqh7dpxe6;(ds $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 coc8ejy6fi1a9pj200x*:7azemd1 yx rxn w 0az x nnected in a combinatio90ax xj ex mzaiwzf1x n106 0ca2rd:j8p*yy7en 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 identical resistors connected hs wfuslkw; ,h/4*f9s6 )asckin a combination s /4 sw,sucfw h;ass h*6k)f9kleries 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 identical. Wh6v09deagd+ pz ich bulb will be 06 zdv9e a+dpgthe 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 switc:k1 a4lv wwcs(. lm+hgh and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0smw+1vck hagwl: l(. 4 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 c48ajq/ rbw7s lq1i.jideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram thej/j s4qri7bla qwc 1.8 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 rewz exz;gzj2 86:v 0xqdsistors are connected as shown. With the switch open as shown inezg6zj: x vwz xd82q;0 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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