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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 thedcmyw;*+ d 6dt c;pf+q metal resistor connected to the battery. Which one of the following choices best describes the direccqdm;w df *cpd+;t6y+ tion 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 parally: tm,c9qc6q n 1j*akkr2y hw-el, the_________each resistor is the sa29 r mj* k-q ywcachtkyn,:16qme.

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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 lju0(ose(5-y cj mza *lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens because ae 0u5 c(-ozms*(jjly

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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 LED)l r)dmnh(bv+ s. LED is the acronym for whicmdbv lrnh()+)h 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-sectional area A.imgk:4uxp r slyg48u( ;3fd4k 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 of the new resistivity to the old resd3 u:44igx8pyuk glsm( f;4rk istivity 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 b+tcn1.c 6d retwice the diameter and twice the length of I. If I has resistance R, Ib+.er1t dn6 ccI 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 half 7t x/:2kctympb 5lhmci43afyd q ;q. 9the length of wirmb :mild/fx ;h5yq39p7.c tck4ya2 qte 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 lengtd3o :ue 1xt7.jnqnbw(h 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 because of this 3nd1x( :e.nwt7obuq jprocess?

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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 bulb. He decides tobezr,3j1hxl569gw)iv zq2dw y 6m xg 8 modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more l)38yz6i rxxvgl9e1d jz5qmhw62w ,gbight 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 th3fdc :jl)4u)l g.poqbe same material. The length and radius ofp.jbc olfql:4d) g)3u 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 connected to a battery in the f6u7c *8i* t 4jtcziddlol67**8c zutjitd4 d cillowing 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 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 accompanyingi) zyt8ob*.sg circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The) yg.szb8to* i 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. The three bulbs 1, 2v o;cbc r 4:6bjtoip3 uz5;g)z, and 3 - reobv 4rgb :;p t;)cj3u 6zzi5ocpresented 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 curre bj)k3v .+t3b,r *unro)kcbqent in all three resistors is equal,*bb c. 33,ok+) n vrjeu)kbrqt 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./ibog -ee7w dsbz ev8v-m 12t9vh a zw,gia63 simple electric circuit composed of 5 iden a bwe zs3dbi g7v/vg 1twe- v-mah.i9e682,oztical light 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 simple cckcw7 z;;t li7t4yj9mircuit shown where resistorj7c ict;49 z m7ltky;ws 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 areft7zg zf /ibycb:8ow; jz;:r, connected 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 parw8y:ozt;g:;,fc j / zzrbbi 7fallel 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 cou:qwvh:oe 3zo( lombs will pass through the identified resistor in 5 seconds once the circuit was cloq:e zh3:ow (vosed?


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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 resist1k oq8e/;sc5zoaw t)gs fsqaj3(+- w bors in the following simple circuit have the same resistance, which would dissipate the greatest power? c o; kw)sg(-q 5f wab1 q+aez/83tojss


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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 through the 6.0 Ω res1e -9 9bw8pv rcxxfxy9ak, c7cistor is 1.0 A. What is t9, kvpc 1 8 9x-rwx7f9eccbayxhe 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 in series to a batteryw(smb3i5 du.x. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is th 5b.um3s(wid xe 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 9b0)b,v ai wq67beb x (apc.fwin parallel to a battery. Suppose R1 has 2V across it, b7ab 6w9 b.fxwqvb0 (,)cpaie 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. Whaf uo0zq-q4m. lt is the maximum value of the current under theso q4m- fql0zu.e 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 resx) rld*hacwkx jr,x/* oj-1. cistance of a 60 watt lightbulb designed to operate at 120 vkj c1*xx aj,cd lw ).hrxr/o-*olts?

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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 flow8n djg+ drf1-xs through a 4 ohm resistor that is dissipating 36 watts of pg drx8dj+nf-1 ower?

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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 t(5d )2vz tsl23 +gd.vo jiveyvolt, 600 watt.” In normal use, the c+ z2dys(v3 .vjl5 doitt2vg) eurrent 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 resistancfuu0- toa4;u)0ig-g+xafx r u es could NOT be produced by a circuit containing onl-u0xu)f i+g4f aurox-ugt;a0y three 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 three 1.0 Ω resistors. Which of the fol f)p +a2f *m.n/buaelhlowing equivalent resistances CANNOT be prodfn) a2la/fpe* m+b.h uuced 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 valuescfcp-ey-9; 0)oluok r- fytqe y, li98 can be connected together in different configurations. If all - yy8q,)l;- clik ru9poeft y9o-fce 0three 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 connec(jzzs76rd f w5k vv25rted to a battery, 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 battery? Assume the internal resistance of t5kjzz2 75fv( rsrd wv6he 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 c cfuw 5ti7/j5)a w8tpmpt u, vdp3s/o0onnected in parallel, the equivalent resistancu8 tc50/ov )tpp,jwius3wp5tfa/d m 7e 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 resi vzebs s zrm9s)86*qu/stance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 m e )s9vqz*su6/brsz 8kg 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 p b(i3rsd3a yzmb 8;z8is dissipating 36 wattsbdyz rzb383m8ap; is( 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 heateqqg+c i c-i,2 g df0l90woaa+gr draws 13 amperes of current when connected to 120 volts. If the price of elg9d ,+ggfclq-c q woi 0ai+20aectricity 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 keep a 100W lightbulb lit continuo vc14xr-i85jaatl/fj, ,czdf usly for 1 year at a rcvi a5 1-zrf,t8 ,dl4x/fcaj jate 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 o:j/c 2kspa8xmn1 r ek+f 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 ree/8k 1mcp2krj:nxas +sistance 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 t3qcfkv)1 t;uwp-vn3sd4ua* 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 the mf; nqut- *ws)vcpd3vukta3 14aximum 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 tdwb d5;2+c j(mbh pz/oo form a simple circuit as shown to the r+(hb/o;z 5jm2pcd bwd ight.
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 connecdv. lx (eg/pr;ted to four resistors to form a simple circuit as(xpdlr./;ve g 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 battery, an ideal ammeter, a switch and three res(g h7ibmqoyw-6to j- 1istors are connected ig1 boqw-myt67-o(hj as 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 conn1db,x9gy)2g. vsfrznj, 9x hj ected as shown. With the switchjg9d2x 1,y sb gvf,.j n9h)xrz 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 batte*x;qt q3 eqgi2ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amme2q3e;q*q xg titer 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 the right, wha wo(jbto-g6 a tf5.g.dt is the equivalent resistance? Assume that all wires are ideal, the battery has no interna.db-w5o gt(t6ag fjo.l 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 ,knl1bgj 3yo 3h)k g 7wgjn17p(xha6c of the circuit shown to the right with resis y6hgkng)xja obh17k3 l3,g7n c(j1wptances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resi2c / s-geqifg5ubk0d;)0 o qddstors connected in a combination series and parallel circuit to a voltage so sg-5c0 d)gdk2uoq i/fdq0e;burce.
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 in/,qbf xr- jy(dentical resistors connected in a combination series and (r/b,qxfy -jn 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 oge22)fl id)i lf the bulbs are identical. Which bulb willl2)ed2i f i)gl 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, an ideal ammeter, a 8oy k(t:kwgr3switch and three resistors are connected as shown. With the switch open as shown in the diagram theyw: tokrgk(38 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 swi. o7 *ihfdds8ltch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 27lhos8* .ifdd .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, lhj n3l8nkj-bd4 gx 6.an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in t3-nj6.dlnj lh 84bkgx he diagram 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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