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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 k.freuf*q+*;-v qz gy 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 the direction of the electric field through the kq*ufg.ve-r q + *;zfyinterior 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 parall,s njwo+cy4 w3l cci1(el, the_________each resistor s,w 4ciow1nyjc3(+l cis 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 lightbulb causeuf73 v+wkqml z0e+3hqs the filament to become white hot, while the largeru+0w3 k 7qv+zqmef lh3 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 bjb *w ql)h0;7lbirrcp72pj( m eing replaced with LEDs. LED is the acronym for w*7lrl cr jb)7jwhm;pbq2p(0ihich 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 graphi 6vf,k*ccbm1z2 ; tagwte resistor 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 resistivity of the m;vw,fbza6* c cg21tkcylindrical 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 haap9k n7z8- ru 8al ei6)eace3fs twice the d 9c)k z -npfeel688eai73 uaariameter and twice the length of I. If I has 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 diam*,m-mknt ext;*gl:i 9 )wshni eter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance o ihn9wlx: ,tgm*;-m ist*n)kef

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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 resi, lb4 v*2vc(d oya5xdrstor has length 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 ocrvyx d v* 2,(5ola4bdf 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 mak+tmd(9:yao no x(.jj ,vq:agjka2n *ce a brighter light bulb. He decides to modify the filament. How should the filament of a l+ny,xa*(v.a d:okomqjtc a j9:2j ng (ightbulb 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 are made of the same materbz +cqh 2a(yuw-,1,9drff1hr r4vi k wial. The length and radius dha w41+ rr2h1b z w9yq,uf (-vk,crfiof 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, 1v d0jsln/e ue3f.0 phare connected to a battery in the following way: “Two resistors are connected in series. This combinefhe n.l/0d p3ju0 v1sation 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 accompanying circuit diagram hz +r6nb/zmm 2rua;1 e) cssvg/as internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter )bzu v6+mcm;ne s1g/zr 2 ars/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 co.nles,v/ybb y83znl3 mpound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagnbl 3sn8 3be zy/yl,.vram
- 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 in ci3g:0obrw s(c e 6 oori;;pk.all three resistors is equal, which of the following st .; o6ksw;ep:obr(oicr3 0 cgiatements 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 simple electric circuit m0t5kygj7p2 5t acb4jcomposed of 5 identical light bulbs and 2 flashlight ccb 0 ytj gatkm54572jpells. 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 followingspdq wrpz;1):q-+bsd statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have eqq qp)ps d :;s1+wrb-dzual 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 connected in sk73j9 vz6yd mekg4gwj:a.4 pth fr1,deries to a battery. Bulb X is brighter than bulb Y. Assume all circuit gv f43j7:radk9 whj4 t,mp1e dy.6kzg 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 will pass through the identified resistor ql.mrx )z b*)mkd u6oar5 :rd,in 5 secondlm.)r dm5bzx6kr , ro*uq:a) ds once 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 resistoikkgd,/0 e uqu/7 )wcprs in the following simple circuit have the same resistance, which would di/qu7ukidpgk)0e / w,cssipate 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 accompt7 q:cj:8d h+;uzdpbfanying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is u b:tdd7 zpqh8cj;+f :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 Rgfeq 98(l nu;s3 are connected 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 across R3 l; (fqnsue89g?

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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 parallel to a brc/b ;s s80qwbattery. Suppose R1 ha sbcs0br ;wq/8s 2V across it, 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 ,z cmz*i*h /, t(mpoqjis rated 1200 watts and 120 volts. What is the maximum value */p,z*h jcz(tio, mqm 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 -xkdvsxl7-6w-c tffh 8ab9o*6 y9c u ywatt lightbulb designed to operate at 120 volts?6 k xxa6fbdhyw7-9--of9ccvl*uy ts8

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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 disstze cb/rhy07r77an y5 ipating 36 watts of po5 /nhaz t7cr07erby 7ywer?

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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.o 9hf kt*7m5:*; cmt0yx63 xqu bsfoux” In normal use, ts3bk f x*om0:q*u9;x6ftyhcum 5ot 7xhe 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 followinm n h5*+b6(mh*el,d)cr ihdg lg resistances could NOT be produced by a circuit containing only three identical 6Ω res n,( ed*g lhr+b6cmidm *)l5hhistors?

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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 follozwg3o .3 vnt0vcq +)eywing equivalent resisy0vqconv z.e wg3)+3ttances CANNOT 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 values can be connectez/4 rfq +x,pxc-m) kzud together in different configurations. q+)cmp -,r 4xfuz/zxkIf 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 total power P is dpqdpmf (n 8yieew /yz+k):/8k issipated in the cir 8/)ky ewiz8m+n /pfqyed:(kpcuit. 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 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 anddq ldtssf:h3q2* *z ,s R2, are connected in parallel, the equivalent resistance of the comb 2d*ssf*tzq lq h3ds,:ination 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 resistuf;gj6i s4t,be18 i uzance of 12Ω when operating atju ; zifgsti,e614 u8b 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 currew1 x:ndlr0p4-lj y gk2nt flows through a 4 ohm resistor that is dissipating 36 watts :kjl gd4p2 nw -1rlyx0of 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 heater draws 13 amperes of current +agylra( j msyh 2b9u;) c(m*ywhen connected to 120 volts. m;y 9 yasyj*b l(+u)ca2ghm(rIf the 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 keep a 100W lightbulb lit caj /li2zjdmu15u7v2 e ontinuously for 1 year at a rate o mz1j2ejd5ul/ iuv 72af $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 lpa,+ kah;b p:gf pbv,2ightbulb results in a power of 24.0 W associapka pv, ;,pf:g+b h2bated 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 a family of six owns a computer rated at 500 y gu t;p .x-op g-atyd;1h8nwg85*ep/8kefy xwatts in a 120 tp8 d5x1p/-neyy; xw-uk;o p8*ah. ggefy 8tgV 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 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 sim2gx u* sso:-* pibs8skgct p9;ple circuit as shown to the right. 2tppg*;s:kosi g9 8s *bc- sux
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 to form a simple un pat6s07ll g89i p-pcircuit as shown to the ripa pg79ni-68t0lpuls ght.
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 batter f9owsh, r wmm)s13x 6kmqc*j2(xtg.oy, an ideal ammeter, a switch and three resistors are connected as shown. Wifshm92 grm)oq w x6(om.3*twjcx,sk1th 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 resisocw+:4mty t-hl wo6v0w 1 ffk-,b,gjztors are connected as shoob6w twjf4k0,-f+yt zcl:, wvg-1hmown. With the 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammeiidi/-27 fv 1 lluw,ister, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2,2 -si1vilul 7f/ iwid.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, wha7ojd 2n5 3wyv0/r u2f .qjjcxat is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical/ajr.dq52fuxj32n0 c 7 jowyv 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 j.lmy5.f-dkf to the right with resistanck ffd-5m.jl .yes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 bel1 3)jyoyt. wit xb+j u:in*i7wow shows five identical resistors connected in a combination series aij y+)t xnu3 wty1i*bw .j:7oind 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 -z0y:bgu/:ni(ki4kqi +g pt v five identical resistors connected in a combination series and parallel circui/gt+0:vy 4k (-:g uzinqip bkit 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 identisox 3 s5t7he( +ed7gdvcal. Which bulb will be the brightestd+eo(tshd7 5 vx ges73?


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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 tbyrlhp22 t/6 ohree resistors are connected as shown. With the sw6/oplbrth2 y2 itch 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 ide a g6*uoos.:a2tkuofig0 nws( 4v8+ahal ammeter, a switch and three resistors are connected as shown. With the switch open ass wanuuf2.h+oga0ai:4s gvo t k6*8(o 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 resiosckzw:6hq 9 0w9r4cdstors are connected ash 9q:ksz6wc w0roc 9d4 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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