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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 electryc g/ gnb1*4xpic current exists in the metal resistor connected to the battery. Which one of the following choiyx4npbg /1g c*ces 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 connecte1ni 6;golp)yb eb lth,o39 si8d in parallel, the_________each resistor is theoo8stly b3le)g pb16i; h9n,i 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 /trc ) jwe6+xkwire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens bekr+6t ) wcej/xcause

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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 amzzh4mc(yi 3 -cronym for whicz3mziy(-4h mch one 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 graphite resistor has1eoon +m* l4e n/1 fhj4v 0noofexmtns760i0 w 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 ratio0fnm ns0me*wh 6njl +v/o47tno10x41eefoio 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 Iiat1;cqz ,zqk / p4,chI has twice the diick htzz,;pc ,a4q1 q/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 diamlzov s6i vk,4m +ci:g1eter and half the length of w vo,+ m lsv6gii1zc4k:ire 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 L and radizgx 5mv408 gy7cqw()hy zx dl;us r. This piece of material is then drawn so that it is a cyli 4 gx cl)dq8yhz y57;(vz0wgxmnder 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 decid,j/ kog kll:.hes to modify thkl h o/l.,gkj:e 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 of the same materia f60xw1s )epxeds6dc( ;vlq7 dl. The length and radius of each resistor is: p 1 f(se)xl 76 0xq6;wdvscded
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 ay6v(sc/a g5kc battery in the following way: “Two rekavs(6 g/c5 cysistors 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 diag )hr;oxph) ,vgram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohx rg)h)h vo;,pm. 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 b+cmka+,yte fta+ 2r5 three bulbs 1, 2, and 3 - reprteb+2cr km+ 5,tayaf +esented 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 ci7p4s8ghf8 k0 t8wr chjrcuit at the right. If the current in all three resistors0j8f7 84h8 kchsg trpw 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 righb mcr q)a3xp(ip70km0t represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (orq(0mk3ibp r7a0p x)mc 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 cirr+k lya)ycjf d.cm:*3cuit shown wl . ayyf+3crd:)mjck*here 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 h/ w40r i)nfz+i3g*p(nz urhwandY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If b(f+3 w wi0z)nzh pn/r rgu4*ihulbs 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 coulom.7qrf bd47xe ni4t*bmo poi *0bs will pass through the identified resistor in 5 seconds o*tqp. 07 bfeinm*7x4 bo do4irnce 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 9ro ,d2qmm d9a in the following simple circuit have the same resisq9ad,mr2d m 9otance, 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 cuxg9dfi1)pcu)u8 bol8/g . ff brrent through the 6.0 Ω resistor is 1.0l)xf8fg 1)f c9up.iubd/bo8g 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 resistors R1, R2, and R3 are connected is 6p-w o/;+j amrjuqii; *dw-tn 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 of power. What iswjo ws*tj;qrupm /-; iid-6+a 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 res:uzu w.w rap7y93x:iuistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Wha a::z iuywpw73 u.xur9t 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 volhahq+hgzo 78llph4v2 :rd, 8r ts. What is the maximum value of the current under these condit 4hh7o+g hz8lal d2p,r:h q8rvions?

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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;fr0 m 22slgad2v rv71jxudg 5 m rvgva5x7 df 2sgu 22d1;l0rjvolts?

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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 dissi citty1g --( do6h1yuxpating 36 watts of pt1oht y gix-1 yud6(-cower?

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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 y +,a xiv+kre."120 volt, 600 watt.” In normal v.y+x,k+aire use, 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 following resistances could NOT be dsqo28u;*7qbim td1 (vba qlkd.e86 oproduced by a circuit contain8 bv2m kot l7 qo*qdudi1a.8qsd(;6ebing only 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 resistors. Whiqz mn,:,cl:uqch of the following equivalent res,:nm qz,uc l:qistances 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 differmuzgm7jz +d;e/im g 58zsmq 06ent values can be connected together in different configurations. If all three resistors are used in a circuit, how s0 zdzmmmi5z7q/6egj gm 8+;u 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 is dis* b(ojp:6au+(n0h qifhs;9lg3ep bvpsipated in t nuli:gsq*bhp (ph+ f3 (o;6pjba e0v9he 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 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, h/dmp ):k n 1n.xj*pdz.bhgf)yaving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the reszp.fd).1nybh:) np dj x*m/k gistances 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 mv t2/e nc6ej e-0wx /fs:(fas7uw pw hotw3;5that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it w2ep( ef wmwcevx wa5h; u6-/ 7 t0j3fnwo/s:stould 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 pemp,: inxppx.9; * tdresistor that is dissipating 36 watts of pod,p ppe:*9; xpx.ti mnwer?

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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 connecte x 30ej-tza)-sb2yc-2m qskm rd to 120 volts. If the price of electricityms2 -qjcmk) e3 2zbay--s0rtx 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 100.a b.t(1wuzs4iku* vxW lightbulb lit continuously 1.ax*suw tkuz(4bi .v for 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 li :8j7gu u/,plqbp3ks nghtbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents :n7usbq8p/l gpku3,j 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 gn0r h1+ ed+7pugkw j-wlrmt9 t zo/0+500 watts in a 120 V circuit. If all computer kg7op+g+9n0w/h d1ezu-rj lt twr+0ms 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 batte9fh n, :of:jhqty: 0txry is connected to four resistors to form a simple circuit as shown to the right. oh::hf,jx9ty tn q0:f
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 tihv-t0g 6kn. 23 usrseo four resistors to form a simple circuit as shown to the ri32srguivk- e6nst. 0 hght.
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 conntxx6vd3 pms8 8gik 4i -obtf,mh,ty72ected as shown. With the switch open as shown in the diagram th id7kgvp4x,t tx, 2mm3 h8si8tof y-6be 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 switc+atzrq5; 1 bdth and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. 5 b1dt ;+tzarq
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 resistor6kkwrn5fp g:9d a+ 7gxuwa mp1-y5j6ls are connected as shown. With the switch open as shown in the diagram thpg55+wlf-k 7pwy aj n6 mgk9:dx1u6rae 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 circuita-1k.fr,i :y7c kqzj l shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistanc kjcy1,r-7f qz.l:ai ke, 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 o,sw:lj nm*c(kk-1u -y* c cwt(euobs9 f the circuit shown to the right with resistances -1 ws*c-ou*:(wjsnkb9ceuklc,t(m y $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combinatq 0)jg wz 4ky(5yq2v6dz4 uabpion series and parallel circuit to a volta)wyy p 54q2 6uz4kvdjaq z0g(bge 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 identrfpg t6g(5c;xlmuktpfj)r i;-2t 8 (tical resistors connected in a combination series and parallel cir;tpltgfmu6p g xtrfr258(c( )jk i-t; cuit 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 diagram7m4i0 8pzeiq a, all of the bulbs are identical. Which bulb wili7i0a z4e8qmp l 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 threee( a ss;+h kmmtq70:jg2zp a5k resistors are connected as shown. With the sm j;hetamsp7 z(02ag5k+s :k qwitch 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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单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ammeter, va m4m4,m pw; bcvcg)oj-b.k9 a switch and three resistors are connected as shown. With the swit;bgp ,v .acb9o w)4mvc 4-jkmmch 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 resistors h04y 6yq/l ssc6huuu )sudn9 *z hxu-,are connected as shown. Withsuqlsusun4-,y u x*06h6 d/ y)uchh9z 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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