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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 metal res e:n f hs9knlx8 y/:uozbauml7r54* h1istor 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 field througyaln/um89 e xouz5*: lbhkfrs1n 7:4hh 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 : xa:)fohx4(5/ lk lnzkf)ffg connected in parallel, the_________each resistor is th nl5kfl f4ag:x /)kx:f(hz) foe 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 t 4k,2ovik3c6 cjt1f abhe filament to become white hot, while the k4,ci cjv1af tk6b32o larger wires 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 repl;s,dfq:4/ut m*lfaan aced with LEDs. LED is the acronym for which one of the f manf4, sl:u ;qfdat/*ollowing 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 r,xcpr5vcsc*m 7wk-7d esistor has length 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 length is 1/2 L. What is the ratio of the new resistivity to the old resistivity7kc, vr cp-cx5w m*ds7 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 h 5+ng1* ktup,mzfpjv/as twice the diameter and twice the length of I. If I has rev,ujt n5pk*1zm /f gp+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 +kvenf6tp0j 3 has twice the diameter and half the length+06 nkvej3tp f 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 has length L and radius r. This piece of matfm*w,pq,2vpa/i 3jp p erial is then drawn so that it is a cylinder with new length 2Lwf/p, apv*ji 2 p3,mpq. 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 Thomah n9tborf,6;is Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more lighttbin6o,hfr ;9 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 length acwh tysyig k.*z;t a:6r24l3und radius :s gkuc42.t r;*yiazy hlt3w6 of 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, eachx4eil uonha9d d88 (v- 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 the vx du(-4 9lohen8i8ad 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/i *)ht fsvwyku5+oq- in the accompanying circuit diagram has internal resistance 10.0 kW and the qo +iv)/uk-fh* twsy5 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 right. The t g7ws(kpqp7x)gi0 ) od6 lpln4hree bulbs 1, 2, and 3 - represented as (6qnwido7psl) 4 p7 g0p) klxgresistors 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 n:l(*9gh esm;:6ovob,ap m y/3buupn right. If the current in all three resistors is equal, which of the following statements myhlb9pu:(s,36mp ma go* :ne/;o bunvust 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 simple electric circuit composed offlzg9k6x7v wlvk*v+ : 5 identical light bulbs and 2 flashlx *k +lz7kgvlvvf:6w9 ight 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 ,/zu;k82+hvu 7bi j1f h r)orctcd2ylfollowing statements is NOT true concerning the simple circuit shown wherecrfc2 y1o)kh;v+jl,/u z2hbt ird 7u8 resistors 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 u;*c pzu*zs s++mq9jf are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY ar++s cs;*mqjuu fz9zp*e 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 resx( ,hapk9mmv *ev :f98 nmo0qlistor in 5 seconds o(m,vq* 0 p89 mhxfkvo9nae :lmnce the circuit 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 resist:nv 2+yi2z2hmk o3kz b7n1nip ors in the following simple circuit have the same resistance, which would dissi2vnn 2+inzkz p32b7 ohy1:kmipate 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 accompanyinjzzdqnf 81fd,l qoe i9 )i-1wlb r.u5:g circuit diagram, the current through the 6.0 Ω resistor is 1.0n.d8i) z,uwz9bl-j 1q 5re l:oi1fqdf 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 in series to a bc6nv9p w/q x:y6c3s aulpzjs8k;5wu7/s-gmxattery. 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 ac3 lzugs- pmcnwu8k/7c65avq :w ;s p9s6/xxyjross 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 - j k6k ou+vwkr-xv83kR1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the curren 6-kxkkkv+r w uo3-j8vt 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 qn sdi9;nv- *wand 120 volts. What is the maximum v9i - n;v*nsdwqalue 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 resistance of a 60 watt lightbulb designed to opmmb+- 1a6e; e /cdshqverate at 120 vo +mehm6adbces/1 qv-;lts?

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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 flore-s9i0 m/ gzaws through a 4 ohm resistor that is dissipating 36 watts of powe zaiegr09 s-/mr?

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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 zq5uqhkz6s. g8)ohe 5n used to press clothes is marked "120 volt, 600 watt.” In normal use, the curr.h qezh 8z6uosq)5kg 5ent 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 c jl6qw6u5;g:baqj ;m bircuit containing on5ua bg6m;blj wq jq6;:ly 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 following equival0lh8 zuqk-,)qq /xhd hent resistances CANNOT be produced using all three resistors?hlh8x- hu)/kqz,0 q dq

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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 together in di21eu9rzyp0sd )abien.a (h8jgs r:w 5fferent configurations. Iadbes) g0r12z :jye ip9 (8a. wrshnu5f 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 battery, a tot* hvsarura-oom+ q6o(q wge69s +57i eal power P is dissipated in the circuit. How much total power is di(+-9oqv g*5mh 6 ro sseiuowa rq+ae76ssipated 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 resistors, having resig720 emqnzo ph5ww 02rstance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correct 0peogwqn72w5h02 z mr?

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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 oz8jg493))i5g mqlblk snq4yb:;qeh bz q4x *sf 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to w4q: *bnsb h8q jyl4)kmg3sx5)qg9 ; qizb zel4arm 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 : v kr; :pka/x:askb)s6j zin*is dissipating 36 watts of po: s:kj*)z/ xbvsa6r:nk a;ikpwer?

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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 when connected to 120 volthd9g e 3jw10 g+czfd6p5p(vh ts. If the price of elg tvh3jdwe1+ 0 5p6fhdg9p(cz ectricity 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 .56q81 *vhet*tw mwmp osv vn- qv49aagf)r8twould it cost to keep a 100W lightbulb lit continuously 1t-p4vtgoar*) 85mn etwa *86qwqh9m vfs v.vfor 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 4.0q*fk (ia3e6 kx0 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of * qaf(3k6e ixkthe 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 at9/zw 4 cx y0 qkfjbiv/6ti5x r)d-gh;m 500 watts in a 120 V circuit. If all computers a 0/)ri4 dftzyxiqw59g/ vj;bhx kmc-6 re 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 to5; uzgndtaw9wgh .5; mrg/.gq four resistors to form a simple circuit as shown to mw;a .h9z gg/gw5nrtd g5;uq. 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 connectzf5 a-mb 7mct*fum gc r,,,;rzk (z6hfed to four resistors to form a simple circuit as shownm rcf6(zh,-kr f; 5, z*7tmzfcabugm, 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 swa mlj7.efr2ql 7o9 zt29 z,szfitch and three resistors are conneote lr9 qlz 2f.,a9fzm27z7sjcted 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 thrxge)w02 p.jfc ee resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. xe.gpj 2w)0fc
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 swihhq pn8 3t a dx3)7u89dxa*stxtch and three resistors are connected as shown. Wd u 8* 73q)axshx8x3aht ndp9tith 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, what is the equivalent resuau 9- zih5y-js*qwn/ istance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have i9--qasij*w n/hz yu5udentical 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 theryvx, cr* 48-)rj;npt f phrb7 right with resistances y-ch*f8b nrx;t ,pjprr4r )v7 $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors connecd+,c xoa7 v5 (dnub7dsted in a combination series and pu 7v,bna o75xcds +dd(arallel 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 )zu0a 0iuv ifn-a0:3i4oqdc gidentical resistors connected in a combination seri0fz-oi a)in0dv4u30q:i a c gues and 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 bulbs are identical. Which bul84fgu;h.vd 1fg whzr- b will be theg8h; vfrd 1ghuz.4-wf 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 conn6 gpw8s*i *yqnected as shown. With the switch open is*pyw6*g qn8 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 ammeter, a switc7h)z:n(ebrz o d5vby, h and three resistors are connected as shown. With e(no:,dzb ) vyrhb z57the switch 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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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 and three jx 1vk+sbfg-le q,;s- resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 am -s1;,sfxeqv+l-j b kgperes.
When the switch is closed, what would be the current in the circuit?


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