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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 resistor coq+qfcm,9roi- u:tn0 ynnected+,t ui y9qmqn-cf:r0o 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 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 rej*eolcu e038 xsistors are connected in parallel, the_________each resistoo 38eeux *0cljr 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 lightbulb cause.es 3 qtdg u6py6wocw+ :-zg5rs the filament to become white y.or6pq3 c sz65gw:g+-d t uwehot, while the 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 replaced with LEDs. LED is the ty p hj/ 3r;38yf0fls kk:z ia +lkkkl,ms/x/8acronym for which one of the following choicesl;sl0+3 / z ks i hxp8 yk3jrlkt/8fk/ymk,:af?

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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 at4 (fmeae -3bb8k6 4vfg ,xnwdrea A. It is to be placed into a circuit, but it firbgen ,(4x3fe8mt-4b6wkf v adst 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 awuzl;db) gb0. hf6w9cre made of the same material. Wire II has twice the diameter and twice the length of I. If I has rez bbhw6fl9.u cd0w;g) 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 onyucx1x/;nh l7 vw/n7f the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then17 xnnh7;ux vny l/cw/ 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 cylindricalz9 fu r-)dol2k resistor has length L and radius r. This piece of material is then draw9-lr)k fdou2 zn so that it is a cylinder with new 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. He dec 0 gjq-; :au(whdi:m l3yoibn(ides to modify the filament. How gw:obh(uiq0;j-d3 la:m i(ny 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 resistors viu:g:/prs 8xu1gn-(n 0 ch zw a.,ycqare made of the same material. The length and radiusc,cu ia :rsg0 v8/1q:(gp.ywnu-zhnx 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 t8+x-tb /pqva do a battery in the following way: “Two resistors are connected in series. /b q tvad+xp-8This 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 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 c 9cmxj(c nn(3pircuit diagram has internal resistance 10.0 kW and the ammeter ha nmpx39c(j(n cs 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 three bulbs 1,hu 0zju(5qz1plh2,km 2, and 3 - represented as resistjk0 51,zpu2u(mzhhlqors 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 r42qnwdne oq iay/-) l0ight. If the current in all three resistors is equal, which of the following statemenq2) dq/yo0ialen - w4nts 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 ele 9txi. 8oig/rnctric circuit composed of 5 identicix ito/rn9 8.gal light 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 state.vi4 9e)o io8fcdxv( kments is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistancoi(xik9evf 4).d 8voc es?


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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 ae11 pkmeh:l78 1lh gtindY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY 1 ihmgkp7 el:8e1l1h tare 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 c;0kcv55v veo coulombs will pass through the identified resistor in 5 s5c0ovve ;c vk5econds 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 resistors in the following simple cirir m* pj;f-dy9iixa/-cuit have the same ypxi/*i jmd a-;fi-9 rresistance, 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 accompany aa3iy-4kzj ts9*4qsr bhoa9/y ,av*ring circuit diagram, the current through the 6.0 Ω resistor is 1.s3t4o*jr9ay,v q9sa/krhay4 -z ab i* 0 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 resisto3a-bngc ;s7rors R1, R2, and R3 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 cgo7 ban- s;r3of 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 differen.rrrflku/i a9 5v/c. dop6s*p t resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ωia.p* rldk r/6.sco5fuvp /r 9, 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 120 volts9pj5usfjazr u2d,ge2, for1 m,0ye;f . What is the maximum u,s am,0j2 u;opge5f,9d1yfe2 jr rfzvalue 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 lightb43iota2g1yd bme+ caxe** .wqulb designed to operate at 120 vold ogw.m*q4x1+a* b23ty ieacets?

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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 curre cpce6 u,cj 05mo-;snont flows through a 4 ohm resistor that is dissipating 36 watts of p c,n6o0os cjc5-pmu ;eower?

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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 use8.g2et iu* o xfrb:0crd to press clothes is marked "120 volt, 600 watt.” In normal use, the r8g irobx 0u.t2* ef:ccurrent 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 cecdfa sr)i+)ukch6ve 2 + /g8aould NOT be produced by a circuit containing onlyc82sverf )hga)u+ 6kid e ca+/ 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 1.20 nfxirppmj 48e0v;e 0 Ω resistors. Which of the following equivalent resistanr802 nvexe ;4pfpjm0ices 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 cank5*f ls w btlk8.gldkgg3b8.2 be connected together in different configurations. If all three resistors are used in a circuit, how many different va*gkfwbd l2.g3glk8.8tb ls k5lues 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 dissl4es*pvq(7fud3ivy.bi :m,py as , l .ipated in the circuit. How much total power is dissipated in a ci:s ,yfq3pv* mep, ib 7dsu(.lv.aly4ircuit 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 R5rdjl 8.ywn7u2f xku;1 and R2, are connected in parallel, the eq n7xf d5uk y8;j.l2rwuuivalent resistance 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 designed such that it has a resistance argd-bu x/37 iof 12Ω when operatin/7 3brxigud -ag at 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 thro6wi,,rz hj lhgq2/)o* it2qxz ugh a 4 ohm resistor that is dissipating 36 watts of po 6z* 2iiwo/j)q qr,2txzhhlg,wer?

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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 connectq jwnz*6p,; vkicc 3f;ed to 120 volts. If the price of electricity is ;3ic,jv ;nk zf 6p*wqc$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 ithf9ou(8w *tft cost to keep a 100W lightbulb lit continuously for 1 year w9ft8f(hou*t 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.q s*bb .8cxqqea/a7uf*3y9k i00 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 resis sk*bq u.b3cya9/8 f ax*qqi7etance 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 ratedb9mt4 b3m 6+ ux(3x zpw kqm)dvvyv;)i at 500 watts in a 120 V circuit. If alt 4xu +x(zqbm)pvw)3k y3b6;imvvd m 9l 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 resistor0 8 cbr.jkinp0s to form a simple circuit as shownj0k. b0irpcn 8 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 17j00x3cc bh o ;ztuvusimple circuit as shown hc0;o bv7ztx0 cu13juto 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 )g0sj9hv lg y up637vnresistors are connected as showspgygjv3 n7u0vh) 9l6n. 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 thf5 .3uw/ td v qjrmnq( ;lmce;z:mn,j*ree resistors are connected as shown. With the switch open as show*uvq3,n;mjzm ( dc;j t:5n/q wmle f.rn 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 ammeter, a switch and three resist ,xv hfknj lwj e5s+wb4.-9.kiors are connected as shown. With the switch open as shown in the de nk..jvj+, lxwhk-iw sf9 b54iagram 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 iso3fm7+wcgr x8 the equivalent resistance? Assume that all wires are id3rgxm 7cwf +o8eal, the battery has no internal resistance, 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 with q4 +5fni:ge 2phm f+zzres:2z+p nq e4hi+mzffg5istances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belo4(f,a60 jue :twe2eodh tqi +tw shows five identical resistors connected in a combination series and paralltae w 6ft+iu2,tqjeo:4 d (he0el 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 showsk 9nz,(uzfdw,;b2d y v five identical resistors connected in a combination sewvdd2,9nfzkzu( y;, b ries 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 bulb: ,/ *dcc7c.bt(2m5 vjp r wtseiz*,cst5ceacs are identical. Which bulb will be the brightecp*cmv,c c s.t5 jtrt5i2e/z:c*(7c edb,awsst?


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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 batteryy i9,t 9q)k j8f a1xrjocmf4:r+4wrqx, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readxxw)r1q ,m4 rqft9:a o948fic+ y jrkjs 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 ak bg l- bi6v27 :mxa-sa6kklg1mmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads6bl2gbg 7--kxv16 mlk skaa: i 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 resi h3r4 ;wwogu py2wg3w198cxe xstors are connected as shown. With the switch open as shown in th1e 8u4 3owr x;w29ph3xw cgwgye diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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