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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 the asnxpt* --(8c / g /tzpmesr5dmetal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the xsmtes * gz/d8- -r p(pa/nc5tdirection 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 parallel, the_________each re/u63 wno:an, wh(0q2wp/z4 aenrde xd sistor is thrd/:/n(d e,nqa an0p wx3wuoe w624 zhe 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 causes +*nik 78a6avn,twf5p5 bmwg a the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler.55i 6 p g*,avam+fb7ntnkw8w a 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 househo ui3t*7u zxw2bfos)t;7q 7yi lld lights are being replaced with LEDs. LED is the acsiu xl7;37*qiyu t f7 bzwto)2ronym for which 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. wf,-5vm5s fshIt 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 th5fwfhm-5,sv se 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 twice tcv iz2)wh0 qb fvq*bnh;ko78/he diameter and twice the length of I. If I has resis b)wvhifb7/v20 c*; qokznhq8tance 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 but has twice the di9;svz0x */gkuz2rtb tameter and half the lexb 9ugzt;rt2vsk*0 z/ngth of wire 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 hcy(ztsj8yp3i6t1du7 r-8ln uas length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happe tt8 y( jd -yl6nic781uzrpus3ns 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 brighter light bulb. He decidesb *)tah3fj9 8n;zfw q /:twdqu to modify twt8fq)z 3*:n dwjq;ubft/a9hhe filament. 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 ar luryuj5lyjc(: 0 8yp4e made of the same material. The length and radius of each resis8yj rj 450yc:ul(y plutor 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, v g r+j q3 9ndjx3csmix3m7f0 s:xlq44each of resistance R, are 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.” What is tx nfmjrgj 337x s0 x4:q4lcdsq+i3vm9he 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 accomxl-9 2;h pmypmpanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearhy mp 92;-xpmlly:


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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 showh9fjhnz w;mo y)8.l( dn to the right. The three bulbs 1, 2, and 3 - represent(hm .w9h;8z jo)d lfyned 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 circuh0fcyxl; a02qs,:e)afp efu 8it at the right. If the current in all three resistors e ,fq0:xfas80cl 2)uf;a yhpeis 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 represp e )w5)icmdv1ents a simple electric circuit composed of 5 identical light bulc m) w)diev5p1bs 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 4/ha3,kw zpbe a+ mf) j4dze .mjb5n9dfollowing statements is NOT true concerning the simple circuit shown where resistors R1, R2deb+3m fbajh 54k pj4e/mwadn9,.)zz 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 connefzqv8 p/mwrl p/1 ms+:+ c8bafcted in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbsm8 fv18p: +rsz +capqbwf//lm 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 ideqgjw-a + i(n7az 8ypnmt)io+/:rv3 eyntified resistor in 5 seconds once the circuit wawv)3 n+ynyt/ +z(ra7eap-i q: g j8mios 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 tb0g+1 bn d a5(c(fw,inb5vz hjhe resistors in the following simple circuit have the same resistanccb (zf5bij+gb(w0,n 5vnd 1hae, 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 curremeiapbxh+ux995;a *keq/1s v0f er 1hnt through the 6.0 Ω resistor is 1.0 A. What is thefaqehb h 1xe* 9u91 5xi0/s +rv;empak 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 batteryj(mzs2,xcs:/ fld 7lam+kkl (. Suppose R1 carries a current of 2.0 As,zfsl2k:m7 ac mldk( j(xl/+, 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 resistors R1, R2 andR3 are connehev4f)strzg ,v +f r-wvf4z8*cted in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current irh,*svz 4tzf f )4vve w-f8r+gn 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 coi d a(xwppf8yim3m +s q8e2b2in5a3lp2l is rated 1200 watts and 120 volts. What is the maximum value of the current under these conditions pf8w +m2mnly 25ip8qad3x(p3a2ebis?

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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 operate a/ 9ik:4cq9tpkni8r 4s c.cq dft 120 volr k9fi4nq. pk8 /t9ci d4sccq:ts?

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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 dissipating6a2-)o ao fzp; tgmnmnq(u65z 36 watts of pow p)nqu5;6(a26aozz m-fn t mgoer?

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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 marv6ep;dif ,f0ulbnp ,ea.w ;r+ked "120 volt, 600 watt.” In normal use, the;a,0pilef, udb +6;rv. nwfpe 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 folfy ,c;;k;qkdhn h x00xlowing resistances could NOT be produced by a circuit containing only three identical 6h,;k0hx0 ;f dc n;yqxkΩ 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 foll nzvs:jsbp6y6yuz4 ) 8owing equivalent resistances CANNOT be produced using all th vu6sn 486z:)jpzybysree 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 con,tk32p.p r )n;,vbmwc3cwz zdnected together in different configurations. If all three resistors are used in a circuit, how many different;w3pn)dw kvrt3 zbmc ,p2c .z, 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,1 7bvyc16on i1-kqylk 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 the battery i1c 7noi ky1v61 bly-qks 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 a7t-*t c ahjnhr/gdz3d )lu,yqi2g2q 2nd R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of tdar2cjn- igh) 2h7tqu q2gz */tl ,dy3he 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 tp 9wlq:;wqzhgj6md va6oa.:8e6 ;god hat it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 k6.jg 6;w oh8plva9d6aqwgd qo::; zmeg 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 t,m9,/ if,x xkeqle72 n9iy pcboua+ k,hrough a 4 ohm resistor that is dissipating 36 watts of pow,+ ,a kx9bmfueiiqk2 lexyoc, pn/97,er?

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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 671 gm1 yc+9v 5v xickowi)hyvwhen connected to 120 volts. If the9 1 ) +6gykivcw75mvvcih1oyx 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 kid8 f 5t/x0g-ezs m (+t.ctoya*fa)cfeep a 100W lightbulb lit continuoussad0 ia)f oz*5cg f (t t/ft.+-ey8mxcly for 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 4.00 A through a lightbulb result:fpwi2;d: v3xoo)dnjk z o0,xs in a power of 24.0 W associao 3f: on2w:)x0djx,p i dvkzo;ted with 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/.w k1gjov )ot a family of six owns a computer rated at 500 watts in a 120 V circuit.ov .tg 1k)wj/o 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 to four r8 6-h/ujlewy5uw.f fykf8 ln,esistors to form a simple circuit as.5l8ww8 /y-f f6u, fulknhye j shown to 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 elr5 - -ozftexudc:97 resistors to form a simple circuit as7cr l-xd9 zo t:e5feu- 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 batterla m7l9iwj1/p d yo5.ey, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram th9lo.ap7j ewm /1i 5dlye 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 switchlia;kkori: rr er,72, and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampek ,o,ier 2rliak: 7rr;res.
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 .yt l7 7n ksy*y6h8flxh(il+d and three resistors are connected as shown. With the switch open hiyy7. 8 yst7llldxhf n( k*+6as 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 the right, wh e/ r2 /f-bmhur1fywh7at is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all thryf-2m /f he wrr1/h7buee 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 to thdm+bw+gjh-4bv np ;. te right with resistancejb +gp d.twm; nv-+b4hs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 0g9.ym-lb3hil j3qo lidentical resistors connected in a combinatio3bllm o 0q.-jhy9 3giln 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 conne3 k3ijcp*jtz 6u+f:8x7o jlc kcted in a combination series and parallel circuit to a ijf:j3 6* k8tu3lc+kp zxo cj7voltage 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 0ek, pd c(dob6diagram, all of the bulbs are identical. Which bulb will,(ddbo e ck06p 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 idea n wq,-(1)3 sfenhvjw2 twcf8gl ammeter, a switch and three resistors are connected as shown. With the switch open as( 3h8gww wjf2 t ),ecf1sn-vnq 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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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, we88wr .wgc;z6 iy6jq a switch and three resistors are connected as shown. With the switch open as shown in .68 wq8c ijrw e;yzgw6the 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 batta)v j*h * ;3ik peclyx:;ruut*ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as showau vtk*)c;p ;ux*er3:*h jliy n 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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