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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 cu4gg 0.q7s i(wyaphk s3rrent exists in the metal resistor connected to the battery. Which one of the following choihg.iq0(sp7s 3ag kwy 4ces 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 resistors are connected in parallel, the_________each resiq6ooj1by ,xj5hu l* izn2h/ w-stor is 2yi/o uh1z6j- ,b5 j*hlqxwnothe 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 cau o1mz1lx;j rpik9;pw :ses the filament to become white hot, while the larger wires connected to thx1 omipz r;pjkw l9;1:e 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 tulap0( oup98dmfaqvg9.+ 5 zyhe acronym for which on( z.+gmupp ad8 fyl5ova9qu09 e 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 grapv +l)xd:pgwo1ye+ax0 hite 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 v+xdp)1g l+0:axyewo 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 a w6 f:zpd6q,,uxaw0 tthe diameter and twice the lengt0pqf, z aadt66xw:w,uh 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 didi;:1.cic2 +cxsnxad ameter and half the length ;ccasd+2: nd1x.icxi 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 i5 / mqs3:jbmnt41 ntkdhzt45L and radius r. This piece of material is then drawn so that it is a cylinder with neh41k3t sqtmbz/d4tnj55:i nm w 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 lq 1mva;u8ok)gight bulb. He decides to modify the filament. How shomk );1gv oqu8auld 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 of the same material. Th8 b7ib4ei +ltde length and ratbilb84i 7e +ddius 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,yv+n pex 1y47t are connected to a battery in the following way: “ yxvpn41 7tey+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 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 has internal r0uqtn,:7.awb bnc8pb ba2up)(o i a.qesistance 10.0 kW and the ammeter has 0(8o q7:u .pbwunibpaac bat.q2b,)ninternal 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 buvo: 4 g yes vyua:lf5.qn)l,/klbs 1, 2, and 3 - reps :al ,lyvqgf voe54/n:yuk). resented as resistors 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 right. If the current in a3wtg9ax1c-/awh.i /es y w tu+yv.3lm ll three resistori+wm/.sy / u3wx vgacl.e ta3y-h 19tws is equal, 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 repre+7 41fe9b bz lv4xcwtjhw 1sc:sents a simple electric circuit composed of 5 idwbzxhfb7941+4c sel:jv w1c tentical 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 statements is NOT true conce;ht 7ifu92/ wbs 7e;;ea zusnfgbop02rning the simple circuit shown where resistors9esf;2tzns0gb7hf / i7eb; ;p2woauu 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 are connected i.(hnvj(ccx*: hpi*k , sd ,dhmn series 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 represents what is:hmh*d pxh,i*jv sk n c,d.((c 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 throba6 q;p) s5g zh 6g*uqnxez.+lugh the identified resistor in 5 seconds once qq6*+.sp hlx)b5nze6agu ; zgthe 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 circuit haveodx*+gr(r ,ub the same resistance,,( +dbr*ur gox 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 circuy) ) dug+.hcnvit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the cv)+n)g.h uyd 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 apzsv:uh3/3s clh .j8bo 9pxk1 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. Wh83vhuhsl x3 /o.:ps1bc9p zk jat 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 are7 plslya: ; yr8d8;ene connected in parallel to a battery. Supposysrd7ap8 yenl e;8l:;e R1 has 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 s wb:yd:p9u0frated 1200 watts and 120 volts. What is the maximum value of the current under these:9su:yd pfb0w 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 operate at 120 aq,lw 54a)bi1lgslv d,1uf) s7)rzowvoltoi1)d l,svwrf)aaqzl4 l7sg1wu) 5b, s?

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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 res usqgaw922 r;wistor that is dissipating 36 watts of poqa 9rw2;u2 gwswer?

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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.” In)w t 4a5)jqxjn normal use, the current qxaj)n tw)j 45in 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 w3-)5e6erjhji5-i 6nb /e da7qmyhqu resistances could NOT be produced by a circuit containing onlwr7-h6y e i/bi5hm-q 3a5qjejun 6ed)y 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 resist +osoxr6 mv556f saeiiri*8q,ors. Which of the following equivalent resistances CANNOmo6v +xfie6i5r8 ,s*r iq5 soaT 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 con :inhl8;qeu-7bv 8bix 2 +gibynected together in differentq7xuyh- b8l8gv b ni2i e+b;i: configurations. If 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 i(stvllr320ny/xb6(i 8 o llkas dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using iakny(32x(6sbl/ll0 8 ortl v 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 R1.1c)qmtlhrk : and R2, are connected in parallel, the equivalent resistact:rhq .k) lm1nce 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 hn650 0j3vphg(-9dw ijgxz iij7a. tq qas a resistance of 12Ω when operating pid(hai0gqn3t7. wji z xjj0 - 9qvg65at 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 through a 4 ohm resistor that is dissipating 36 wa mk1nxw8s /b;(jgbt e5tts of8(wxnm5e bkg bj/t;s1 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 drawsulom5 oz )/ek th;5jn3 13 amperes of current when connected to 120 volts /jeo 5u 5hnlo;3km)tz. If 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 0spvwi wqg8n,xc 2 0t2keep a 100W lightbulb lit continuously for 1 year at a rate ovwwqgc,sxt i2 0n0 p82f $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 lightbulb results in a power of)3ahofs:4 (q /g n+stkhqqht) 24.0 W associated with the bulb. Which one of the) hq) 3 sk sftgqoat+(h/hnq4: 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 comput.m8q 4 u-lru:kv-l 21s:odopv3 kl qk3v;lfyner rated at 500 watts in a 120 V 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 th;k8:q-4qov.mllpr ky3- 2snvofllkuu 3 :d1ve 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 for8bjk en tyeqo :/j9upfxi0 9+.m a simple circuit as shown to the ri fe+8:yijx/ qj0kb p9une9o.tght.
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;623 d zvuilzr resistors to form a simple circuit as shown to the rightd3 uz;rl6iz2v .
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 battereojctu pr5 q(rx )skj0;0d63r y, an ideal ammeter, a switch and three resistors are connjqx;s 0k5(d0) roeturpr6c3 jected 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 :pe)5a)d.q4q1 u c q; khwmcqlthree resistors are connected as shown. With the switch open as shown in the de k5.qw)qc phalcu;mq 4 qd):1iagram 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 anhe ( gd.+h/df6uxf )hld three resistors are connected u flg)he+d.( 6xfhhd/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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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)yh 3ou8l ynh/ equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have i) ohuy 3n8yl/hdentical 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 resi9ucb1n3cq . ckstance of the circuit shown to the right with res 91c qkcc.un3bistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 sbtvh*tq. la: -*eel8 connected in a combination series and paraetl-s8 .bt*a :*qevhlllel 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 identical resist9lt(ne +runthna /8p+ors connected in a combination series and pae/a+n+np9ul trn8th ( rallel 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 idenn0, lm2h 9qkkfx/ xmb(tical. Which bulb will be the brighte/ kkh9b, q(mmxfx0 l2nst?


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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 3j/ke+ pe3,hpg ,r:rpyameh , ammeter, a switch and three resistors are connected as shown. With the switcey:,k ,prgm/j3hp+3hee,a prh 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 id.b9pru5m b4xow0b c2neal ammeter, a switch and three resistors are connected as shown. Wixbbo5n wc m p9.0b4ru2th 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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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 resisto5wm9jek 6mahuk)4 a64 i(zweh rs are connected as shown. With the switch open as shown in the diagram the ammeter reaek aja6 4z wmhw5mu)ki4(9he 6ds 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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