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习题练习:.Resistor.

 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 electjqc-0tpw v .6fric current exists in the metal resistor connected to the battery. Which one of the following choices best describes tvptwj-.c0 6qf he 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 connected in paralicu z71 f7 76nmcte1hllel, the_________each resistor iuec7n7z 61 m hli71ctfs 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 thre6-48jot4qw qsf 6 xxuough the thin filament wire of a lightbulb causes the filament to becomq 6x6-4 tjwfos8e u4qxe 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 lighjwm0pi-r1my-1 a. mb wts are being replaced with LEDs. LED is the acronym for which one oammmib -rjp 01w.yw-1 f 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-secz,qfi-i 2o b0rqnzz4)tional area A. It is to be placqbi024zn -,zqfzroi) ed 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 made of the same material. Wire II has twicc1;weiwg9pxw : hf* +me the diameter and twice the length of I. If I has resistance R, II has w9efxic w*+ hwp1g :;mresistance

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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 maajv, t.ywwspb ;*em1i6 cs4 .dterial but has twice the diameter and half the length of ts*6e4p j;.byavc .,w1 mswdiwire X. 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 radillmi 1xo(*xx 4us r. This piece of material is then drawn so that it is a cylxx lo4xm(l 1i*inder 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 a brighta) b(q v-d55cf nq*ffser light bulb. He decides to modify the filamenq 5sa vn d(5cb*f-fqf)t. 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 are madenym3k/2j x ;rr*:cdzh*n/gixat-f2v of the same material. The length and radius of each resistor3kn y *n / r2*2md j;/vtx-c:xhrgaifz 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 cn l5 9*iztf4oly5ju6 ponnected 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.” What is the equivalent resistance of this arrangjl*5y4ilo5fpuz 9tn6ement 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 has internal resistaddx+ij78v as5ru-i r (nce 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.0j sda r( i7vr5-dxu8i+0 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 shownnf 9wx nmt1,o( to the right. The three bulbs 1, 2, and 3 - represented as resistors in the dio m,nt x(9nf1wagram
- 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 wl ot1.3c+i,h6kfn/ztbl,l *rrbc :i the current in all three resistors is equal, which i*bhbi ,tlwfl.+1r c3 zr l6,c:okn t/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 composed of pc sgx..xm+v3 bm3cu 95 identical lightu .vbxsx3+ m. cgc3pm9 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 the simn-azdbtl ,3;th m5j/ 8fcshr3ple circuit shown where resistors fs ,hhmaz3-dln/; 8 rj t5c3tbR1, 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 connected in series to a bof 6nlc1gs8 /-.;uspisuv v)c attery. Bulb X is brighter than bulb Y. Assume all circuit eu l/f.osc1v;cgi-)ssu6 8v nplements 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 identifie c95c pno;gh9q0qv0n nd resistor in 5 seconds once the circuit was closedcq novnnh5099pc0 ;q g?


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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 simpfbct73e;;sh wf.um 1 hle circuit have the same resih 1u ffe;s3cwm ;.h7btstance, 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 accompanying circuit9d 9f u; h-sqa;ggg2md diagram, the current through the 6.0 Ω resistor is 1.0gs2 -g9 ;;uadfd qh9mg 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 connectvfw tx/ +bikc3z3se-6r8utx 4kv(g5(p zx5 qwed in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistan3 szkb58 6 -xtqgx4zwvukx3(r5ep i( +cvftw/ce 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 connected in parallel to9v56,n4b ksb3 pb oamo a battery. So p 9bna6vbsb43m5 o,kuppose R1 has 2V 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 rate xt(lx,ea27 vcd 1200 watts and 120 volts. What is the maximum value o(7t, axv le2xcf 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 lightbulb designed to opes 12-r1zwha9r2fg7 gmi ht4jjrate at 120 volts?9h1i 2 2rf whsz g7tjm4j1g-ra

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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 fl4qz9 k; u8nee)x*xzklows through a 4 ohm resistor that is dissipating 36 watts of powe8zzexn u 9qx4ek )k;l*r?

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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 pr-ybif,i - wh6kess clothes is marked "120 volt, 600 watt.” In- hi-iwy, bfk6 normal 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 resis+tb -oqbjt(n 0*o 3clf(dv*kftances could NOT be produced by a circuit containing only three identk qf0*- * tovjcb(+dnl(to3bfical 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 resistor q3v cn41ntyz;-8ao t96 dsxirs. Which of the following equivalent resistances CANNOT be produced using all thrx r;1ndtq 9s-46yncvo3i8 ztaee 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 connect zyb pl-byc32.ed together in different configurations. If all three resistors are used in a circuit, how many bp-3yl c2 .zbydifferent 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 toqd)ayuy jd8pzb( ,0c - a battery, a total power P is dissipated ib-),p yj d (audcq8zy0n 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 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, havi qqjq6t f -mqjfb5z( h4n.ms,ew-u0g: ng resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5(qzmbw h.j4tqn6e j 0q,fgsuqm:-- f5Ω . 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 xu5 xnchcrv8ga9sr - yf 08r)*12Ω when operating at 120 volts. What is the minimum amount of time that it would ta*nrcxx8-hg9r0rs )c85 avf y uke 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 ai)/ mv9c7-/wdj)bt h paic.q ue(vcr. 4 ohm resistor that is dissipating 36 watts of power? p) bej 9)hivuw .rmcd /.7vcaiq/-t(c

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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 v 5ef5j5co e9bcud 9 t15pniq/120 volts. If n5f555 cb p1i dt9jvcqe/ueo 9the price 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 much would it7bq on8lp:r i4 cost to keep a 100W lightbulb lit continuously for 1 year at a8n:4brq iol 7p 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 4.00 A through a lightbulb results in a power 2b wd65wsn cbhw456xben5 8nlof 24.0 W associated wi6e55 w bcs8nnnbhx4wb6wd2l5th 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 u biqt,x+09yq 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, whaxbtq q9+iu, 0yt 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 circuo)w(8 r .9kddj s;ln 6m:ebhwcp:vv6dit as shown to thrbjpoed dl(6ksm ;whc.vdw)968: :n ve 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 simple cf)gf0 68wwak b6x//kq1t tacz ircuit as showw) /8bagttq 0w afcx66zkf/ k1n 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, :da) z t)i0 1z7k8cf5bvywscua switch and three resistors are connected as shown. iswzadkt1 )7vz ) bc0ycf85u: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, aa. h -a3an 0q5(ytzpxun ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reaua (3qat. hnz0-xya 5pds 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 8kd r7xu7j5 y xct78ozideal ammeter, a switch and three resistors are connected as shown. With the switch open as shou78o 7xzy8k crjd7 t5xwn 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 showzhg;wi+sf7gplm9r 7an s +15yn to the right, what is the equivalent resistance? Assume that all wires are ideali9r wyflnz;7msa+ p sh+g571g, 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 t5r)j0ae t 1jsrhe circuit shown to the right with resi 05jt)1rejar sstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 coc87 i k( u;9sf.lhuboknnected in a combination series and parallel circuit to a voltagufk.87 i ;oh9u(slk bce 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 combinatia *7og4/rzg lgon series and parallel circuit to a vgg7o4 z/lgr*a oltage 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. Which bukh .o*yp+gz;aq b5cd1o. )a +e*ydgielb will be the brp 5z a;+. *hyoeeb g+o*)kd dc.qgai1yightest?


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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 resisto:u)ggce.xlmdb+ h dr(n v -2,srs are connected as shown. With the switch open as shown in the diagram the-vb: cmughsxe dr,(n dl)+ 2g. 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 batter63mw yjp mhspy3ay8)2 y, an ideal ammeter, a switch and three resistors are connected am6p8 233jsam)ywhyyp s 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, ez25g.;.srwq ,dm2l f u1 hkh.z)xueb-x h5nxan ideal ammeter, a switch and three resistors are connected as shown. Wxh5.z1q5)xfdn swbxhegek;zru lu2 m.h. - , 2ith 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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