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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 curr i0jlkyxol3x xk4 3;(jent exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and thl4yk(k 33oxx;0xj jlie 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 parallel, the_________each rz 3r5cp4ur*f 7e vmz(lesistor is the spl* 4 z75u(evf3rc mrzame.

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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 caus 9, z 9m ly4az0en1vthlv:jh.kes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This hamh94n1k0y,l9ze.: t lavzh jvppens 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 LEDs. LED t gfn)tc)8h5ais the acronym for which ocag ftt 5h8n))ne 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 Ah khlsuozima: h /u2s*q .7s7(. It is to be placed intoh72l/7s:zu(hm. h usao*kisq 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 ar 3iwyg* 3xne .,qg*dffe made of the same material. Wire II has twice the diameter and twice the length of I. If I has,.gw ydn33ief *gf q*x resistance 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 half+4s 5d1 bzmh:zyv5wnfb .hhn 2 the length of wire X. If wire X has a r41b hnh fhm+ny b 5s5.zwzvd:2esistance 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 radius r. This piece m-;fvlt15z qnta m*.,ne jd4fof material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this matennd m*vzqatj ,;lf15.t4m- ef rial 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 E2i 9wh7 pk3vz;9o3-ag bh xdczdison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be mo-x9bdhz;37pv kog haw3zi 9 2cdified 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 resistpfcuj jloo.o8o(gh4u-m* olp 1u 13w)ors are made of the same material. The length and radius of each reso o u.o (fpugwh*j 1)lc-4om83l 1uopjistor 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 resij2 6upm/37idg txag n/stance 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 the equivalent resistance of 3x6u /ni/dag tg27mj pthis 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 t-cag okcffdv1* 9f 8hz1/hua4 he accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading cau8ha 14d gff /oh1-vc9 fz*kis 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 showhr:zui)5r4 p nn to the right. The three bulbs 1, 2, and 3 - represented as resistorn p4:r)h uri5zs 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 cirkeb 1dv.tyc5miiq1q/ *mj8 g5cuit at the right. If the current in all three resistors is equal, which of the following statements must be tcgq85 /e1yiv15kbt.i mjqmd * rue?


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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 repex:(+5 o(3cz cvu4ibdc omjclpl868 y resents a simple electric circuit composed of 5 identical li5mcx boecv86lcpl4d38yc z+oju ( (:i ght 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 sqeoi5b tex.7,imple circuit shown where resistors R1, R2 and R3 are have equal re, bet.exi7q5osistances?


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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 6z jychg6o rdnznitj;l)j8* l u,f7 1*series to a battery. Bulb X is brighter than bulb Y. Assume allz6rj7ij,n16fo;nh* u8llzc t yg)j*d circuit elements 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 wixs0 z27e q-i;.bcj t09ju rmdoll pass through the identified resistor in 5 seconds once the circuit was closejzjbisq00-2.rc7 ; dtxuo me 9d?


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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 simple circuit have a i8j6p ulgi8*the same rj6al*i g8pu 8iesistance, 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 current throch ;kziz1,z3zugh the 6.0 Ω resistor is 1.0 z 13ic,z;zkhz 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:9dwm 3mkdvs6 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 acrw3 :kv d6dsmm9oss 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 para :kx de g8t(v7ymz-51u(0y tfxp qsz5rllel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What isx5e7y t1 fy(zrgk-5:pu zmvd0q t8x(s 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 )a u1 6c+zmhhyand 120 volts. What is the maximum value of the currhz huma1 +c6y)ent 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 0fwd 1v zrq(g-( hdu./*pb atedesigned to operate at 120 p-wavrbfzt*d/ ( qdhu (0e.1 gvolts?

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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 g:2wftk 0,h4i :ptntgmq2, vwresistor that is dissipating 36 watts of power?hmnt fit2w,, k g2v4qpgwt0::

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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 iro otg 4z*kd6k5as8*4aum p h1cpn used to press clothes is marked "120 volt, 600 watt.” In normal use, the cur1 mtz4o8gh k pdc*a*p4uk5as6rent 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 NOT be produced by a :9oi elxb ,bn9circuit containing only three identicab:l, oinebx9 9l 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 thj m9kw ,g+8 ;vlawtsxq5q s jaq7.*gn7e following equivalent resistances CANNxjt5wj s , 8skqqv7nla g9+*7 qwgam;.OT 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 vjd (;f4,v dphm2 hxn.halues can be connected together in differentvxh.2 ;,dhjdmfpn 4(h configurations. If all three 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 connected to a batuzoh vlqrh9x14 87.xw tery, a total power P is dissipated in the circuit. How much total power is dissipated in a xrw4xlz 9 v1uo.87q hhcircuit 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, having resistance R1 and R2, are coya.6ut8q q,3zr1syobq c- j,u0r t1onnnected in parallel, the equivalent resistance of the comb83 bouyu-6 ,ys.r a,1ro qtcqzn0t1jqination 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 resistance jw 2ot a3oyb0q2e1si(d(n a8n7 .akanof 12Ω when operating a 3i. 17 sndbak q2otaj 2a(wne0an(8yot 120 volts. What is the minimum amount of time that it would 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 thatiz; s+fnbsjvp 2klj;u;1rr 1* is dissipating 36 watts of poweri*j 1f;n kus1z+ sv;prbj;l2r?

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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 s j eu)j39pw)g;tg(y p0abb3kdraws 13 amperes of current when connected to 120 volts. If the prj0e wp9g;33u)) bg pksyba jt(ice 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 keep n.ncho-lfoi sq2 7.o5a 100W lightbulb lit continuoui.s qhofo-no.5lc n27sly 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 results in a ;b5xb ex)f g.*x6e2ii dv3lkr power of 24.0 W associated with the bul3;.dxlxxifig *26 5)bkbe ver b. 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 owns a computer rated at 500 watts in a 1q7e;z 5cufia -20 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum number of the computizf57e -;c quaers 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 siii-a(3ao 3vhj mple circuit as shown to the ra jhia3v(-oi3 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 connected to four resistors 8c;npbx -zwdz8e,;e d gml1 58i:ty zkto form a simple circuit as shown to t y8; ;15-g,kebmpxcl:tzzwen8 i8dzd he 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 andv/ 4ie2g fiaq6xy)mf35heq(l three resistors are connected as shown. With the switch open as shown in the diagram the ammetervx5/m4)6 g 2yq(hfa3q eeifli 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 con2dsfa/ ,nrszq 2u- 6 4v9ypn0r7nycdmnected as shown. With the switch open as shown in the diagram the ammeter rdf6v/ 7 rcq-zsn, m4np0 ay2ds2nyr9ueads 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 idea *7kh-5zt,h hpr hd(wdl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter r(,5 rpkhz*7 h twhd-hdeads 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, what is the equi 5)jneua0uc1da3xj nzfh53 t(valent resistance? Assume that all wires are ideal, the battery has no internal resistance,5a(uxh3jad0nnjufec t1)53 z 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 shown to the right 6.orr8ca y/ke with resistancee r.ka/68 ocyrs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 id1zevi : .gzm3juzn;cs/ij59k entical resistors connected in a combination series and parallel circuit iszgn;9jz1 .5 zemiv kuj c3/: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 re j52yrm;f9i+n n4c wjwu)-z rcsistors connected in a combination series and parallel ci 9rifju5c2mrzc;jwn-y ) + 4nwrcuit 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 bulbs are idv.+x2em z t)gjentical. Which bulb will be e)j+mtx2.gz v 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 switxng dj5-xegz )9m m+d9ch and three resistors are connected as shgd99+zx md )x nmg5-ejown. 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ammy7*g d(c1co mteter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter r y c(*otmdg1c7eads 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 switw-0 lpcl;9hkq,n 9x zich and three resistors are connected as shown. With h llp;w- zk9x90niq,c 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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