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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 current exists in t)3: shnj*ztvfv hc- u2d 2vw+ev) 8ngphe metal resistor connected to the battery. Which one of the following choices best describes the direction ov8d n*n) 2+t2)ew p3vjf s -hh:zvgucvf 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 ra;q0)yct; zld esistors are connected in parallel, the_________each resistor is the szt q;yda 0;lc)ame.

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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 ipu .;):tevi w+tcfz6 the filament to become white hot, while the larger w z) itc:pit w.6+evu;fires 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 replaced with L;sv1d 4dvy 9o0wmy0my EDs. LED is the acronym for which one of the vw m41y;v9d0m sody0y 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 len07j a8 qm4+h,utx o3xg/x ceai*m/qszgth 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 lenqeac3ima+/uxxg*tjs,z/x4q70m h o8 gth 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 samefp 1ukkt54x m2 material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II hatp2k5f4 u1m kxs 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 twddn)w x62fv ,p( tf j8y9*ffhzice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resist)hnf6 wx9j z *(yv 82pf,fddftance 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 gkcu 9.b m,h8shas length L and radius r. This piece of material ik ch u,.b8gm9ss then drawn 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 womx0nrfb 3,(viq:y ;a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified x0ob:w,q mf3y;vir(n 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 made of the same maza. tjtve nn03gj, nu0ft-2.yterial. The length and radius of each r0nz u j.fy ntvt.j-0gat3ne ,2esistor 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 a : pelb,i 0y chis(:h1pe r:z-fsa j8,cbattery 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 thre(:hzsey,ceri,0ac1: bi: 8 pfshlj-p e 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 in the accompanying circuit diagra.+v2o ltl kb( zeyp6s tr-y/d.m has internal resistance 10.0 kW a6 +e/llv y drys.bkot.(p2z -tnd 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 circuit shown to the q .9n6ftcq*wl)ex*na right. The three bulbs 1, 2, and 3 - represented ann tqwe*a9*x.cl f)q6s 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 sim9c(vaq zjg-;9f. o4xn,n qyzwple electrical circuit at the right. If the current in all three resistors is equal, which of the (;4yjqgn-z9nzf. a vw9,oqcxfollowing 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 rightn8,rv.kxvh8l9s i ;u9.p f 2bme9ok jb represents a simple electric circuit composed of 5 identical lip.br;n9. s9 jf9i8eux8kolmk ,b hvv2ght 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 +1 nnw5)fr cxlu)j6q 6ac9skosimple circuit shown where resistors R1, R2 and R3 are have equal resistances? lkauwxcj)1qn +cson 66f 9 5)r


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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. Bu ,t yuja(zy)2sh;g:zzlb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulb;sz u,j )(atyzg z:yh2s 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 identified resistok8jvl vtplcq96 nlg:0 lo;::gr in 5 seconds once the circuit was:g0 ln8gclq;t l6 v jolkp::v9 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 theqksbyo;xz i.pw xu: h ,+1qtb7pwn ,+1 resistors in the following simple circuit have the same resix7u y n;hbpz+iqo .qsx :tbw, ,+k1wp1stance, 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 circuit diagram, the curqbb57y5 ad 8*g03dwvg9a mwdyrent through the 6.0 Ω resistor is 1.0vyqmy8b9a5g57d0 ad w bd*3w g 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 connected i8y 8oq x azabs/h4cbm96g)z0gn series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipatc96gyqbhgzxm)b 80 z4saao/8 es 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 h jh*zxc kv5ir6gdil. 7ys(q-:u( 8g4v4 objgparallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 8zg 4 g6.*:i lhr7 jvjxkv4b-hqus5gdy i((oc 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 maximum07 yt6yp xg4f6lhwt*v valf7p w0t6hy 46vtygx*lue 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 resq jefvuh :0u1 h-5kn+aistance of a 60 watt lightbulb designed to operate at 120 volt0a-ek quj15f+ nh: uhvs?

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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 reoyyg8 h .qzr 3hh +dz;/ur93kesistor that is dissipating 36 watts of power?e8 yhy ur hh9oz.3g+kd ;zq3/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 press clothes is marked "120 volt, 600 watt.1*4z fwpfmfh4 ” In normal use, the curzff1hp4 *w fm4rent 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 0wbjug.fw9+h y:quj im-73 lcNOT be produced by a circuit containing only tub+9-w0i7gj u yqf:hj.w c3mlhree identical 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 thruv+o9w f t: fnaa7;3jbee 1.0 Ω resistors. Which of the following equivalent resistances CAw a 3tbf7 j:vnao9fu+;NNOT be 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 conn3/+jk-pg :le-e gvkybected together in different configurations. If all three resistors are used in a circuit, how many diffeygel+gek- / j-pvb: 3krent 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 is6p4 2*:ianakw me7sjywh 1pi - connected to a battery, a total power P is dissipated in the cirmj2k ww7-1hsi4yp6 aia:*e pncuit. 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 resistorsk ;i;.icpys;iq2lig kgo7-.g, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Whichk;giicygosg -i7 2p ; .k;ilq. 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 a+no8 a9rdyq9qenan2; 1.klb of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take toq1ban. a adk y9l ;2eor98+nqn 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 /(gf8ikguo 7c36 watts o8fg/7 gkiu oc(f 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 amperesq e4 ss0hx-9gq of current when connected to 120 volts. If ss e09xq qhg4-the 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 it cost to b4ma)c(,n cx,:kstpnkeep a 100W lightbulb lit continuously for 1 year at a rstmxan 4,,(pbn:c)kcate 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 lightbuwz4,. f79c kvb ;n3 9fjgrfunslb results in a power of 24.0 W associated with the bulb. Which one of the following choic sv3f9;. fwb7r9unnkjgfc4 z ,es 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 rbchb0eq4. s4a 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, w .es4hr bb4q0chat 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 batter-,o ( :ioeeb8bwyd k;wf6p/xe y is connected to four resistors to form a simple circuit as shown tokxewp(;b bie:ye6-, of8dw/ o 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 connected to four resistors to form a simple circuit2mk*m6zfy )d3 nlt m+glr; b9h d+ytk 3bh l2)6rn*m 9zlfg;mmas shown 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 batte7a2l0(hzg f-psxg9al ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as show f7(pg z0- 9axslh2glan 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 ammeter7f (twk 4:kf7 ojto 53haqpihq-qwm51 , a switch and three resistors are connected as shown. With the swi45hfq5o 3hqwm qk1w j:7t i-kp7(a ofttch 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,xy/kl13k* /m xfkl .eq a switch and three resistors are connected as shown. With the switch open k/mkekxq lf13*./ lxyas 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 theav, 2nf:;mmg e right, what is the equivalent resistance? Assume that all wires arn2m;ge m:f,ave 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 s542 zfpp y;zdw-5mc lchown to the right with resistances 5yc 4lmfpwdz-zc; 52p $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identicagimcx1u c 0xtg9la,*-l resistors connected in a combination series and parallel circuit to a valm*g,icuc1 09x- gtxoltage 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 res6xqw) 8ab2 /2 8foooabdo,fcpistors connected in a combination series an,aff8o 2 )w8qbad/ ooco6bx2pd 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 )qhqphjbr9q-*8 s: na bulbs are identical. Which bulb will be the jq n-*pa: bh9qsr8q) hbrightest?


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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 f59djg 7e3 sldxdvn/7resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 xnl93sdfg ve7 7j5dd/ 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 ur78moy ps(0/ulq5 otthree resistors are connected as shown. With the switch open a (8 0lru7/mqypsoto u5s 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, an ideal ammeter, a switch/pglr)3j4 q2bktqrt /8 lxc.v and three resistors are connected as shown. With the switch open as shown in the diagram. glr 4r//q cjpt3xbkt8 lq)v2 the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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