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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 metaltc 2vn6ca8 agqlx128 pw der*( resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the electric fien(gr p68qaxlc2 81c*2dtavwe ld 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_____; rd,)f lfk-g ;hpb(+iz+jjz n____each resistz(b dflp,i+f)j+;nkz -;j hgror 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 lightbulbc 1h f8ov;t0rl causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becau0lr1oc; th v8fse

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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 isuu pe) 6mf4em4ju9hm+ the acrou u) ee+p46u9fm mh4mjnym 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 graph c ql8r buftd/4buk38u,zpc10ite resistor has length L and cross-sectional area A. Iu,t403 pr8ufb1d/ k 8cqlczub t 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 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 m/axbw)r(6wtkg k( h ;material. Wire II has twice the diameter and twice the length of I. If I has rekhg(m k;wtw 6/)bxra (sistance 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 diameter and halfy j*:dwv+kte 9 the length of wire X. :j + *wtvdyek9If 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 rap3oz06y wv9 :dkh uvq6dius r. This piece of material is then drawn so that it is a cylinder with new h 96u vd:p063voyqzkw 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 a8nua o7;p7mw4 xib9 q tef6a;w brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb 7 4n p6oqet;;waw8m9iab ux7fbe 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 made of the same material. The lenaxntu)7v8 n5spc 2+fvv 9e*tpgth and radius of es*vnn75xueact 9 fv)8 ppv+2tach 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 f(5lwxulq s xq0yd 1,wm46(on dollowing way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor. s4xxdy(6o wwml 0, q1ndu5lq( 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 accompanying circuit diagram has int (iayh32x nxj4ernal resistance 10.0 kW and the anjxx4a(2iy h 3mmeter 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 twj5yagv6 g)w/.cim x- o the right. The three bulbs 1, 2, and 3 - 6aw./m)gi- w5xjcgy v represented 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 current in9e1mujz:+ del +t(8li,wlu w y all three resistors is equal, which of the folllwwlz y(+ +dm:te,e8uiu 19j lowing 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 atcca fo7q g dcl: (u3)a--wwe.n right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlig3 :qecagco)aw(wd. u- lc f7-nht 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 follow n(gncjmu7i,.m)+ iqjc0q6 p uing statements is NOT true concerning the simple circuit shown where resistors R1, )ii m6u( jp mjnq,q.cn0uc7g+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 col8io q)b+iq 2sfu,v s-6qj+ jynnected 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 parallel with each other to the same battery, which one of the following chov)f8j j, ls+yq isu6o2+i-qbqices 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 r qeurj -h v,k-htu4+7vesistor in 5 seconds once the circuit+kv-eut qvh ,hrj-47u 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 followi,( *bo)xkatjfp28fousc 8ee7 ng simple circuit have the same resistance, which would dissipate the greatestek ,8c buepjof) 7osf2x(t*8a 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 sm zupj+mf p-k ( (r;*j3vlq.pdiagram, the current through the 6.0 Ω resistor is 1.0pjfz(3 s- j*.pqp+;mrmul kv ( 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 co4ye;mj3rcx .+i le b+bnnected in series to a battery. 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 the voltage e34.r+ixy;embl cb+jacross 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 tnoj s )zvnjfx8,8g41andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 4gsnt nf18jj xo8z)v,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. Whlq17z s fjc5:nat is the maximum value of the current under these conditi:1lsz q7n5fcjons?

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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 jls32 ovg4;: h-2e3p 5-; xccnnzzgs+nqj pnnwatt lightbulb designed to operate at 120 jhso e+vnjs2cx:gpn pzq n3;nc-542l -3gzn;volts?

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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 flaubj a.cfgw-6 +dtq:56lf/ xxows through a 4 ohm resistor that is dissipating 36 watts of t jf 65qgl6x./w -b+:f uxcaadpower?

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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.” Intj244u/j( :n 3 tmfinlgmc0 cv normal use, the current in n0tm:clcf3vmj2/4 ugt i j4(n 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 resise7 ciwmr)q c2 c(cv06ntances could NOT be produced by a circuit containing only three identica) (q0ir26m cccenw7 vcl 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 fole7h/v mz o8zi1lowing equivalent resistances CANNOT be produced using all three reszhzo i /v7e8m1istors?

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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 connected toget07gwq ;jfn0a o3kie2zher in different configurations. If all three resistors are used in a circuit, how many different valu a 3 0qz0ofni;k2wg7jees 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, a tor+2-nj kmxn m;tal 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 ofkn+n;-xj2 rm m 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 and R2, arrj q2/+ kw7rzgt.qa r4+r8kgue connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements a +g+ 2rzrq/8w7 ru.arq jkgtk4bout 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 197e, eruvxnetc*7i o/2Ω when operating at 120 volts. What is the minimum amount of time that it w7ee e9t xn/v7rocui*,ould 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 xjbi9 sl9e r, . xxbl68jvl,)4bxvc+tdo+,rqthat is dissipating 36 watts of plxx,xvb o 4 r6,+svc+ jexir9ll,9dbj).q8 b tower?

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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 ampklg /*)0gr ks)ze4 f:t:piokr eres of current when connected to 120 volts. If the price of electricity ises :o40fg)*krri ptlg k)k /:z $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 la sltvsp;z /6dld/ew-)*jj * lit continuously for 1 year av s6w)z-edpsjdtlj* // ;ll *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 currentbvwev7 5d ra15i+ :sny of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Wivb:1 y+ sae5rn w7v5dhich 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 ofuvn;fa) p-pt,bs6d t; six 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, what is the maximum number of the computers can be operatinbatn;v;-)t, p up6ds fg 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 3q 5 epzl cg0;:n1e3- l9y(wruzadtoito four resistors to form a simple circuit as sro9zecu- :;d3qplw0z1(i5a 3t ylne ghown 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 batterymnj grv88p3:d : (lgkr is connected to four resistors to form a simple circuit ggr k3l8dr(n:m 8v :jpas 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,btk r(;mxj2t and three resistors are connected as shown. With the switch open as shown in the diagram the ;mttkr( ,2xjbammeter 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,q e)rph:q8gj5. /,tgj wc:wfso1n7 mv an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads cw se1 nm.vpj :g8:f),7jq/5twrg hoq2.0 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 switjj9p 8n/9xfzpe9 4jw ohq39oa yym;/bch and three resistors are connecte 99y;xpzhj 4wojmy8pqen af/3jb9o/ 9d as shown. With 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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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, whv vy+w /8*wwagcpd me85-; s.zogta 0fat is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and ae8+magw y.w tw;c 8-vadgz5s/op f*0vll 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 re3/t-l 8rs1u cmibz;xnsistance of the circuit shown to the right with resistans8u;ctxrn/zb1i lm3- ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 s ku)jzk)/b xsv/zw; 6dhows five identical resistors connected in a combination series a ;swxzu//))6kb kj dvznd 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 in av x)hcdg p, (oit*u4:mm*z3zr combination series and parallel cicdomv ,**ht(r:mi zzpg u)43xrcuit 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 bul j5lqo+ n8c/5jq8hpvugk ::h vbs are identical. Which bulb will be thghv:ckl8vqh+ u8q:n5 j j/ po5e 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 switch and three resistors are :f-o)8cg b;.u ukq9hmwi;ye t connected as shown. With the switch ope:wb.;8 t; q m-) iguouckfhey9n 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ammetecw1dx)w(b,4x ; df wjor, a switch and three resistors are connected as shown. With the switch open as shown in the diagram tc4oxxdj,; fbd)ww1( w he 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 amh 2ed9 can0 o6km6idp*meter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ampckm29an d o*66e0hdimeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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