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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 electriacz qlv6p+9)ygz; 5vhc current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direzayh6vqc+ z59l v)gp;ction 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 resistors are connected in parallel, the________/ ahbizu16 t6l_each resistor is thz/i hbautl616 e 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 the filamez3+khlhqx wjr / tby .1h+ js3v7)h+tvnt to become white hot, while the larger wires connected to thekwvhvh+zt1j/lsx3b3 t.qyh)j 7 + rh+ 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 arw *;5vo03v:zbzhn .dlrya1gee being replaced with LEDs. LED is the acronym for which one y l0a:oh evwd5 vbn.3zz;*gr 1of 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 (0tqm 7/p w+gd /mfyfbsr+av( has length L and cross-sectional area A. It is to be placed into a circuit, but it first must bg(mdafft 7+/wb pmrqs +v (/y0e 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 are made of the same material. Wire II has twice the dm rd y08kt 28moopwg/35gjkt*igmr0my5ogk tko wt/p8j8 d32*ameter 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 halv/ jm+bi+;t+c mr/ y0gd dqo+xf the length of wire X. If wire X has a resistancg /0/ xjmb+ yvrcmoddi;+tq++ e 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 leng//u;;rrhep fsijbb4h + f( brqp-a -n+th L and radius r. This piece of material is then drawn so that it is a cylinder with new lengt-r/4rbi -ph+(/ psbbqf r;hjn +u;eafh 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 wan5 arfca,;apgiz/ f 3c0 o-j/vzts to make a brighter light bulb. He decides to modiff 0izc5rja -;, v/pg 3afoaz/cy the filament. 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 resistors are made ofq+bwe ccn58 m. the same material. The length and radius of each.c+5q8 emn wcb 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 7 d*shfee6 5ud t4ho.cconnected 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 this arran .65heudoc4tf he* 7sdgement 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 h+k-eafc z s482*v;wqg omny; kas internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mf;noe4;+ -ak *qcg zymw 2ksv8A. 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 thgqyk dk 9al3d(2h7;3vk1cl p jree bulbs 1, 2, and 3 - represented as resistors in the dik 1p 2ql39kjclv73;ag(kh dydagram
- 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 elet8e(:n -8taaccgt18wp n+ sijctrical circuit at the right. If the current in all three resistors is equw:1 +88p sc8ttinn (ejc tg-aaal, which of the following 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 represents a simple electric circuit comn2c 8xblio.+ x7z*ty4 aajx n,posed of 5 identical light bulbs and 2 flashlight cells. Which bulb nz.oxlx , ac2jix*ntb874+ya(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 simple circ. e5g*zut mi(tn4j7z vuit shown where resistors R1, R2 and R3 are have equal re4*ztuen izvtj g(m.5 7sistances?


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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 to a battery. Bulb X i1 oaudw,y; k:fs brighter thawuyk oa1fd ;:,n 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 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 wi )/i -e-qhi*fv7hcaj ,igbb. oll pass through the identified resistor in 5 seconds once jf b/bai h7.v-*o q)-higic,e 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 ;p7 c5i4sx;p /)tvso7evc hsy following simple circuit have the sx y;sc/ps5spc t) hvi 7vo;74eame resistance, 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 curwc;4gg une1( zrent through the 6.0 Ω resistor is 1.0 A. What is the power supply voltwgn;1ecg uz (4age 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 x 57*w i89+hq v0s3fc o,kyi rniege5xdf0y w1R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance ofk57gc wioe9n f0erxd v0531+q*yi8,syi hfx w 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, R2 andR3 are connected in park+zz 3sq8pe l9allel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is tsz+ qlp98kz 3ehe 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 volts. What )0 z8,u8ca ;m x wkq4/j7mky(tt dotiiis the maximum value of the currentac8oz wui4(7k/ttkm q,m8jt y ) dx;0i 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 oper *eh akas3)wu7 zbz9h9ate at 120 volts?u h7 )e9zsbk3*zh a9aw

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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 dissipateu. x7)o zt5wbing 36 watts of powerwb.ouzt5x 7e) ?

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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 tnmofc k:x; gi460lwm 7eu7s+ho press clothes is marked "120 volt, 600 watt.” In normal use, the current in ;c6wmmei+sfh 0x u7o:k 7ngl4it 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 ciroy :mvziaw3 +.cuit containing only three identical 6Ω resw aiz+:o3m .vyistors?

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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 9zm+)e gnr*8nvifb5 tli29mfe. - a ygequivalent resistances CANNOT be prodngm992 ffiv8 g*bze5i t)ynl.+ mer- auced 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 connected togethe o hmz82645w1hnnknnur in different configurations. If all three resistors are used in a circuit, how many different valuen46w n z1 5hu2mo8nnkhs 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 4k7 h+ s8gjh2rrhxl8.naoz n- to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors xo- g+4nrhsn8k7ahlz .82rjh 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 conny7uis1m4 0a qld p4h7sected in parallel, th4 luh aq77si1sy04mdp e equivalent 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 0,evab ty-2wgd/ ipl zz8tjb;13ek 8shas a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it t -z2t01y8ds8vwj 3pgkz;ebalib,/ e 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 lldh o4y;v6d0xu ba ksw)/.tt8a 5lf5 ohm resistor that is dissipating 36 watts of pto s.; 84abvka6dyuh/lxfdtl )50l 5wower?

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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 tor 8c5q :gfjgj2 120 volts. If the price of electricity is jgq8 :5cj2grf$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 v zz7f qyg5x q5z15yy)/c*gkf to keep a 100W lightbulb lit continuously for 1 year at a rate of )z175*zyf5c5kgf /gzqxq yyv $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 tmi +/ shuzpr(61kua(-a sv(ou17wml xhrough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the foz7wuvk1/ 6shu(r1pam i+u lao s((-mxllowing 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 an/5.g(q/6tgvqyj1s u- ianw p 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is t/s gaitw v1np.y/(6j 5-qqnughe 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 connec5/ dpnmo/qx2t 1ba je5ted to four resistors to form a simple circuit as shown to o //n j51abp5xemdt2qthe 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 circu:fysu98:: s -ntom mfjit as shown to t8:m tussf:f m-9y:ojnhe 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 resistors5m pbgj f*eilm)6 hp8fj). *ia are connected as shown. With the switch open as shown in the diagram the ammeti *5i.j *f8emhm) f6lbjp)pgaer 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 iv qeph8 /mso3k9za :3jdeal ammeter, a switch and three resistors are connected as shown. With the spa3/hvse9k joz q 38m:witch 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 ammeter, a switch and three resistors are conn;lyhijlbe,2 ow +t*81z7buojected as shown. With the switch open as shown in the diagram the ammeterbzjb1wje 2+h7l 8 ,tyl*uio;o 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+bqc3scdy9h8rhj o7 j4d /j-x is the equivalent resistance? Assume that all wires are ideal, the battery has nox-o9jdqrc/c 7 h+34 j8djbsyh 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 theqm ya ele4f;6* circuit shown to the right with resistance64eq a*;m elfys $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 show 27k fko0zejz9w3 kci)s five identical resistors connected in a combination series and parallel circuit to a voltage 9co 3j7eifk k0zz 2)wksource.
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 sh:.v08ymqp 6viw*eve8u+i /p :i8ep0 fsbgup z ows five identical resistors connected in a combination seriey/+0b 8uz wpp ivp:s8.8e 6vqpeiv 0f*mgeui:s 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 identical9+ p2fa,mgjb rr z5l f2-g4ruv. Which bulb wi9rm2rlfgf j-br4+ uvp2z,ga5 ll be 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 tq4pq(m 8s6s*ohd3x)- uxw kc ; ahoo8dhree resistors are connected as shown. With the switc ox3ocuwdh q s) xq*8mpd6h8o(;4ka- sh 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 ammeter, a swit3j hnb0o)-wlych and three resistors are connected as shown. With the switch openlho ywn 0-)3bj 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 resistor4sc af8))o.v fy t(gcrs are connecte c.f(yav gosc)t)f r48d as 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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    总分:50分 及格:30分 时间:不限时
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