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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 reskoa 2 4uszd5v/istor 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 d25 k/osv4zauelectric 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 resistorywr l)k3(6d4i bn)gii 0xt)x ms are connected in parallel, the_________each resist)m)gbl34d)x r0iwtny ( xi 6kior 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 lightc3 o3 dwwc *(or8ky:vkbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain*8v 3c 3odw:kr(wkcyo 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 replaced ( wc m8 p0lj6h4 n4 qulo3brhw,dp94xiwith LEDs. LED is the acronym for which one of the following choicp,6494l38 hdcmihlrwjwb4u n x0poq( es?

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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 amn s3c **jij4 q58+x2fj zqrstrea 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 new25rjsq 3nqtm*fs+zj xji4*c 8 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 material. Wire wjd z48i r uebnrop: )9xezl.+n;pi(ce,ju:0II has twice the dia:ep94iej(d n leo).; ub r+pwuz zcxnr8j,:0imeter 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 diameter and half txr9t+c ok c ix +.c-h(tj-pl-ehe length of wire X. If wire X haot.rck pjc+h-c+ iex(-lx- 9ts 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 material*+v7 tr)rxlx1 mnff *:qe 1esskp1 0vj is then drawn so that it is a cylinder with :*1ltp+11fmf xs*v s ) ex0qnr7 jvekrnew 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 a brighter light bulb. He2wnyd cc 2ya:y9i0uf3h:e z7b decides to modify the filamentc 3y 9i:dn0uyhfzb27c2:y eaw. 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 resistorsqwn -(zu6oehdj ): 3at are made of the same material. The length and rad6uz- et qohd jwn)a3(:ius 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, each of resistance R, are connected to a battery in the fn0/kn *v4.aa7jgldd zollowing 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 0 za n./dj kgd4n*lv7ain 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 circov6dv6phzkfat.4/id m+ ()n euit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter a dvhefvnd mzo6)/i6tp (+4.kreading 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 sp 11hoeftu:.uq kp78n hown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the 1h ntok. 8ep: 7uu1pqfdiagram
- 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 thov/d9w nu-) rve right. If the current in all three resistors is equal, which of the follow)/ r-vo9vwudning 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 rv qb:3*zc: peaepresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight av pe:bq:*cz3 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 NOTads *r(a1b8p v true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal 8s v*a1dbar (presistances?


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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 series/pn md4ss8ozcl0k wj g1 8)u,w 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 choices best represent ) zgn8w0pskjls1d c8u/ m,wo4s 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 pass8:l t dv1ts)qiwec) w/ through the identified resistor in 5 seconds once the circ ) 1tlvwq/c wis)tde:8uit 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+ *wjgu0k:s/g pwb gec;tx;/x oar)i 8 in the following simple circuit have the same resistance, which would dissisu);e:xr kobac+ g/ 8/0t pijwgxwg;*pate 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 diazrsj y3z:32 *yry, 2kv wby5dxgram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply vorrd:y5y33 zs2vkb2jy,*wy x z ltage 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 battery. S (.r1tyjfd9sfuppose R1 carries a current of 2.0 A,d9jt sfy1 r(.f 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, R:7 qvnce 4itw gb(qe)22 andR3 are connected in parallel to a battery. Suppose R1 has getnbq 2i ce:w7 v(4q)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 is rated 1200 watts and 1h-ag( : tc+lqo20 volts. What is the maximum value of the current under these conditions?a- o hg:+qtcl(

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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 t6rmz4g-1 p. 5 aofunfyo operate at 120 .afo4fp - 5gyrzn1mu6volts?

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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 flow(7s ipzvdvzzde1s(lq3 8 ,vx0s through a 4 ohm resistor that is dissipating 36 watts of power szl( 8zp3sqvvd,xve 0d1i7 (z?

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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.8m,.*4 hs 4mmylz qcu 3u5dmfr” In normal use,5 m.434mrmhul*mfd8 sq u,zy c the 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 followi27d+d kk 0 *7bbpc,h8gwnqf rrng resistances could NOT be produced by a circuit containing only three identicrc0hbdq,7k2k8rg bf wnd+p *7al 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; 0hxm vv/2 r-l j0lybg8sss+z Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resistors? v80 x2jzl+h/0s;gbsr-y sm lv

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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 togetherb zva4) /ml:)) ;rqnpswiaf ;x*55l,yscc rhv in different configurations. If all threxshpn l r4rf ai*sm c;b,y5:/5)) w z;vcqvl)ae 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 bxbhb+4u8ta)sm 3e y;d gzn9m+ attery, 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 is zerah+4m) ybnt89gs3b xmz +d ue;o.

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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 Roa- / glv5/5j qjckit.2, are connected in parallel, the equivalent resi- //kgq5vj5ac o.ij ltstance of the combination 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 desigl;fjxa5p q. 3-pbpg7u ned such that 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 kg of waterqupjb- x3; pf lp.a7g5 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 xv/ c:gbd.0 puohm resistor that is dissipating 36 watts of/.bv cdp0u :xg 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 heaten/o+ 3fhsn yv5 2gsil)91djtgr draws 13 amperes of current when connected to 120 volts. If the price of electriciti j n) yng+lvgfo 5tsd913s2h/y 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(f nz+lvc 6vng8z28ob to keep a 100W lightbulb lit continuously for +z 2zbn v8ocfn 8lv6g(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 curtfmkf: p1dk4.2 9zmkbrent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance kkkzfb:p mm49t12d f.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.a n *,.eftoc ao47hxb family of six owns a computer rated at 500 watts in a 120 V circuit. If all compute.,bt*ofxc .7a4 enha ors 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 m/fgai (; u(o;pqnu h)form a simple circuit au;f)/ng;i(pu mhao q( s 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 resistors to form a simple ntw +pjo25u;pcircuit as shownw5tjn u;po +2p 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 and three resistors are conn)z/iei7zigwhk / w r+1ected as shown. With the switch open as shown in the diagram the ammeter reads 2 rw/ghw7ki/eiz )+iz1.0 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 andvenbqch 1b9o*hp 2 2/z three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2chn2bh1vzp2 qo9/ b e*.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 switch and three resistors are cone8nz)5 /dwzi 7b*7yfpq 0r asonected as sh/dweaf y 5z8r0bi7q)*o ps 7nzown. 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, what is the e xowok +fg;5n3-0 ckusquivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistancn; oo0f s5kk+xu- cw3ge 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 resistan7b4s,; ftf1 a8d3wav(wo m jvvce of the circuit shown to the right with res v8 af, ;voaj31wtv47(msdbw fistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 c +nm( m.7jorkresistors connected in a combination series and parallel circuit to a voltage source.rom n(7.kjmc+
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 belob56- kb81:jkncev0h ao .wfe vw shows five identical resistors connected in a combination series ajhb-ebw1 0n 8k.cv56:oave kf nd 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 arm 6oacd0 a7t4x1c4xete identical. Which bulb will beao t t 7d4ec10m4xx6ca 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 switch and three resi2j3 v,zaf. czhstors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0hvazfzc2. 3 ,j 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 amme5( ku,ulv+ zo3fj e0xzter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2 uz+k v03fz5ej,l (xou.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, an2wt)z 3p f+fyj ideal ammeter, a switch and three resistors are connected as show3zfy 2jw +tp)fn. 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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