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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 c7oknki/,zfyk 5)z0v shown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the directikf,ckin5) k7z/ zoyv0on 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 uvkk .t80-w,mjssaj *resistors are connected in parallel, the_________each resistor is a,8 jwm*-kjtsk.v0usthe 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 thismqdh( pz h8*7rc wp6,n filament wire of a lightbulb causes the filament to become white hot,m ,z7c8 * wrqp6hdh(sp 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 w6bt1 es5;k, ltsw8yyr9 go6ulights are being replaced with LEDs. LED is the acronym for which one of the following choices ,g buoet16;srwks8yylwt59 6?

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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-sl ab ./f:ddfxx z *ma*ks+ac:;ectional area A. It is to be placed into a circuitk:*f+ .fd:*;b xaax/zdsmcla, 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 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 madet.sir6,o6sqfxl zr5)yl. o*n9 + v7ge mp2 kvu of the same material. Wire II has twice the diameter and twice the ley*+lo. 7opf6vg)s,elzx9urk tr i.m6 sq2nv 5ngth 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 dig 00fv5nir+u:95t g ynphe9h jameter and half the length of wire X. If wire X has a resistance of R then wire Y would have 5 9 p0:itn 5vf rhhng+uye9jg0a 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 b8palyatrfi( -r.nr 6:yd35 bd/)rpn 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 tha6 (py:br53 .by/)rfptr8-r ddi nanle 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 b hwa6*lq +by/kk4b u0trighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce mqh 0wka*b +tub4kly/6ore 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 cylindricav 2o*y+v4tvd da1 .1bk/si cuwl resistors are made of the same material. The length and radius of vwd 4v+1 yiavko1b*/2 sc. tudeach 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 conucr 9)xjj/ef6 nected 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 ec)juj 9f6xr/ 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 diagrepdn .nzl o.s ;k;c. u+0) ws6pmyc0cham has internal resistance 10.0 kW and ts lcyp zd6;w.;pmhno .e)s+ cku00c.nhe ammeter has 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 m:u,cbe ne3 kirebx x) 459+hr2p 1cfv1, 2, and 3 - represented u5)2x i4ve1+9bc er:fnhcr bkm,3xep 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 electricalwi7vqg0r;g zp ny 7u,ep+h j1) circuit at the right. If the current in all three resistors is equal, whin ;gj q7y+1)ihupepzg vw70,rch 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 composedn+-bj /yhqfp m0n.9vm of 5 identical light bulbs and 2 flashlight cells. Which vnmnq. -+jpy 90fbmh/ 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 stateme3c8-x3j ymwi.emtu 7hnts is NOT true concerning the simple circuit shown wh3- u 7y.eh3xmj8 ictwmere resistors 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 in seriet qd)4twsj(/ ls to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are conn4jl(w d st/)qtected 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 n /z j,fqje2)w through the identified resistor in 5 seconds once the circuitenz )wfq/j2j, 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 inln/c.vl my6z. the following simple circuit have the saml.m/ 6vnyc z.le 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 accompa++t th ,508qm0mqfz aj*hsnranying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. Wh5araqmn zsj+*8 , qhtt +h0f0mat 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 resistors R1, R2, and R3 are connected in series to a battery. Suppjz6phz4bmao ujv12 g1h1( 8fa ose R1 carries a current of 2.0 A, R2 1 g(26h4pjfa1ub8 ao1hzvmjzhas 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, R2 andR3 are connected in parallel hzqdra3r yp:(k3 6v-q : sjk+gto a batthaq z:+sgvp(3y6 djrq3k k-r :ery. Suppose 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 rated 1200 watts and 120 volts. W 3gw2e7 irfv(b2txi+khat is the maximum value of the current under these conditi tg7rx3f2w(ik e2v b+ions?

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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 toq 5d9 widu:7ra operate at 120 voltud 5d9r7iawq :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 0h-gjy/oix67eob w9x 4 ohm resistor that is dissipating 36 watts of power?jihe/6o 9 w-ogy0x 7bx

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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 maoi h8 rhh/di 3zeq+ 2epwn)+.jrked "120 volt, 600 watt.” In normal use, qr8+z23wen+jiod .) /phihhethe 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 following resistancf.qg ujl7 pa3 q od7e;sg.l9r.es could NOT be produced by a circuit containing only three identical 6Ω .f79j7..plo;r g3 dqgulqea s 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.l:)4r xx ./u*juchplm 0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resis p cx uxm:lulr./4h)j*tors?

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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 toget 2 ur 77eakx4jn0t2gnmher in different configurations. If all three resistors are n4x2n jreuag27m7 t 0kused 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 iqbph*b g39 cq:s dissipated in the circuit. How much total power is dissipated in a circuit if n identica q hqb:bgcp9*3l 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 and R2, are connected in paralle1 ms77njg -hqil, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistance1gism nhj- 77qs 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 resistan4(xh/lyny)uum8 k h+uce of 12Ω when operating at 120 volts. What is the minimum amount o4h+uhm(ylu8yk)xn u /f 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 rezve/(d79 mi m rqn,;hs18+ psulb:frwsistor that is dissipating 36 watts7,rmwm(+pez:h s1/n8sv rq bl d;i9fu of 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 ampel;dd.(kk g kbtlrsdp1+k-t1 +q0c3e kres of current when connected to 120 volts. If the price of electricityedkc-l+drq31( d+kpkt1 . slk0tg;kb 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 lightck)7 arru(j zx8ye4 a*bulb lit continuously for7e(z*x8y raa4 k)jcur 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 current of 4.00 A through a lightbulb r;d.g/bx,1pw.hmfaubjnb ;z) :er jx,esults in a power of 24.0 W associated with the bulb. Which one of the following choices best represents thbgn b.j)z xu1,h ad.:,w; mrbfexpj;/e 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 compuuqizw-n+8oh v 6qo.v3 zcg(jb h;4 z(tter 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 the sametim 6+oovwt;.c4gzb3zvn( 8 z(uh ijqqh- e?

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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 simple cirpes 5x3,kv v jied1(q1cuit as 3i jkeqep511, sv(dxvshown 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 connect50k.ia3t yrmr0 -af mued to four resistors to form a simple circuit asr5mya akfr0mi0u. -3t shown 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 rj(szcn o 6/o3switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampers6(rco3jz o/nes.
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 idehl iy3-w g-2zkal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 kzyghw l2-- 3iamperes.
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, a5nxd0 i5c/r (5no zz4m6ushom n ideal ammeter, a switch and three resistors are connected as shown. With the switch oz(czm imrn s/5d 5u0o 56nxo4hpen 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 00 :,rzfb pa;9l/tx ou2)dlxkv.5zvff z6c an right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistan59aa dt;fz0: rz/pzko0 b,fl6ln v vxf2.x)cuce 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 witq t) 96okytvu8md0 oa-h resistances96to- tkmvy 8qo)dua0 $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected in a combx9wekc9 ++sec .zs-zqho9 ( tvination series and parallel circuz9oe+ x9- swz 9hs+. ctkeqc(vit 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 fi3qi6 8j4nqa1lc3qd o kve identical resistors connected in a combination series and parallel circuit to a voltage source83l13iq4 o anq kcqdj6.
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 ids c(-)fr mse/fentical. Which bulb will be thsce(fm- r /s)fe 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 resistors are conn,v+d6kmm rv b.d;wbs; ected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.vkv+ w;bbs r ,d;6mdm.
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 switch and three resistors ak2p ruq1f7 1nvre connected as shown. With the swuvr2kpqf1 71 nitch 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 rxm1yr1 j2 3ehhqjl3.ammeter, a switch and three resistors are connected as 1yjhq13m3jrxh .lr2eshown. 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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