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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 curre:76qr+k;k j zgd(hkg dnt exists in the metal resistor connected to the battery. Which one of the following choiczghk:rgkd; k 6dq(j+ 7es 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 parallely jfl8so 0ol a--u qtrg54 ha-b/:u,ms, the_________each resistor is the same.5ot :uomhl fa4u- -l ,r0sa 8/-qsybjg

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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 filamesr 5c)n qu,+ghcvo8ff5h70 yp nt wire of a lightbulb causes the filament to become white hhrcv p8+0o qc5g5),yu f7f shnot, 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 qaj2,xu 3gwj:ze6q3j replaced with LEDs. LED is the acronym for which oj: 2qjwugje,3 6 zx3qane 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 grap *w-tw;fs m c(b7 lazeite804nhite resistor has length L and cross-sectional area A. It is to be placed into am iat ( e0t sfez84ncw;*7w-bl 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 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 eo4y ayq/*6uz;l-mp s II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has r *uq;o6esz-yp4y m/a lesistance 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 twiw pb 5wlal6ck)9 max+-ce the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance ofmkl65 w +-l ab9x)cpaw

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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 resistohoahr bu*t.n8e( g52 ir has length L and radius r. This piece of material is then drawn so that it is o*2rit5a (ehg.nbhu8a 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 mvuq1:nmplsnv :s;df6 03lhe - ake a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb lps1nlqv0 f;:m 6:eusd-v n 3hbe 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 resist0aq)k 7.oda8(xl e 7v6w0ro .px wkbdmzh0b.c ors are made of the same material. The length and radius of each resel. x b w. qhbm(0wrpa k0dox)ad.68o0zcv77kistor 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, ea7)1stv 5srji:qpham6 io : c1lch of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resis7 :ja 1smqi1)s ot:rli6p5cvh tors 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 9w/hhe- io.ilam+ nf7 circuit diagram has internal resistance 10.0 kW and the ammeterw-ohnim.i7/ hlef +9a 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 .mm pu31ec o-kegj/i 0m;+ kkuto the right. The three bulbs 1, 2, and 3 - represented as resistors g3u 0+omi k/ e-e.c1ukm;jmkpin 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 tvmv w- 2-h2p0;gfqq/d9qpba r he current in all three resistors is equal, which of the following statements must bvqp ; -p / wg2hdqqbm92rfv0a-e 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 ci6rzfaxo 6 4(yqrcuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulxz6(f6 4ryoqa bs)
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 42r g -wwkhbge-8pw h(m+pgr;aw9su5the simple circuit shown where resistors R1, R2 and R3 are have ep 8h;p2(s g9wm bg-4w+ rrewwkh5 -gauqual 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 series to; 3;7gi4kspgf4obhh qvwy3k( 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 observed? k pi43 gyo hhk;(fvg43 ;bwq7s


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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 pask c3/ms-vax(a5m h +uos through the identified resistor in 5 seconds once the circuit k 5oaa3m+ms-v u/hx c(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 sim:fz 78yub )itbple circuit have the same resistance, wzf ibu7y 8):tbhich 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,eu: :l dmq-/qzeat3b8 the current through the 6.0 Ω resistor is 1.0 A zae38tq-d :qmle/ub:. 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 in series to a 2k1 0wlv4p: dr ac7 k6owng2grbattery. Suppose R1 carries a2gdv 126:cln kkwgwp074rora current of 2.0 A, R2 has 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 connf0f*,mo ..xr wcvw kqjz/4cg;ected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the cuf o*cwjf . r/,;04zqwmxck .gvrrent 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 ratuc;yl dg3.jus +wtt. 6ed 1200 watts and 120 volts. What is the maximum value of the current under thesesuj.wutgl6ct d;.y +3 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 ope ks 9+cos :kl77zbol2drate at 120 v9o7css:z b27kd+l kloolts?

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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 ohmz7;h4hms79w*pruj e l resistor that is dissipating 36 wat*m7 z7jlp s hruewh9;4ts of power?

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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 wancjkww*ujn+ 9e +9fx6tt.” In normal use, the current in i+w*+9 eux9fk6jcwn jnt 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 resw w9r oz)(y*gbistances could NOT be produced by a circuit containing w go( zw)by*r9only 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. Which of the r2,6 gcutq k0o5c,cbqfollowing equivalent resistances CANNOT be produced using all t,utb kc qq620gc 5ro,chree 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 diffe0(ku;*wy4zfk 1(aw r gymh:vkl+ el/orent values can be connected together in different configuratio mak(o *kwv01yly/f k:h ;4w+rel(guzns. 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, f3(kxuip)d- +ua:rz ta total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the sam x( zip kruad3+tf:)u-e 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 res85 -kkj2pexz -bx2mjh istance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the fol kx-2 xj2mk8 b-jhpez5lowing 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 suh(te+4-)+tdcv(4 c0sj dzf riro+ij uch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to wa j( 0z+(od4t ce4 frcvui+)+-htrsjidrm 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 i6+n0 a oir:mgrs dissipating 36 watts of por6m+nriao:g 0wer?

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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 ampqll iugew+vw bm+ rbj:6 9rqo6 -3:2hueres of current when connected to 120 volts. If the price of electricity ij:+rw3 l:6 q2m6ib w+-uluorebq 9h gvs $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 lightbulb lijje geni 8),a2r /gfp8beu:p-t continuously for 1 gb2i/p8j-:,p8) aue gef njer 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 ofw l86k82uf/pxnw j5hxkjq 7.;w +vbsf 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which of6swwp58n kvhj/ +u ;qj blx7w. xkf28ne of the 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 ownsr5-f9l biknm5 a computer 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 compu-55flbni kr 9mters 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 conne8j o c0+lrydg lik.99d5em /uacted to four resistors to form a simple circuit as shown to jdlmuya059dk9el i /rc .8g+o 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 connecsu.mbzlj 6 ivxf-pq 4x + m.lnx60jf*4ted to four resistors to form a simple circuit as shown t.jx6-6sm x*l0lv +funq4mb x.jp4zif o 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 resistor5nwtrt3qk)a7breb8q ;s 0 .ubs are connected as shown. With the switch open as shown in the diagramkq0a b5 qr 83 wunr7)tb.sbt;e 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 three resistors are 4 kz-d7bkyo q(sqo .q6connected as shdz7o (q. kb6oq-yk4q sown. With 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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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 sm (u4d4wk x*nbwitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere(x4 k*dn mbu4ws.
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 equivalenteep8 a0b b6wv: 9bcp/m resistance? Assume that all wires are ideal, the battery has no internal resistance, and all w:c8ba 9pepb0bvem 6/ 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 circ2.k ieve :ren r uv2j*k99yz*tuit shown to the right with rest jek9vn *urir*2:e2yv z9.ekistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectwgz0 vgmffaqy5e- n5*k :rr5 *ed in a combinatigm5zq fwv5 5:-kar*r* 0gfey non series and parallel 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 resistorr r bs7:cvnet bt+)7i4m1krc5s connected in a combinatiok1r77:r4btcn5c e rvbi m+t)sn series 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 identical.+ *) vkuffeeagtj6+m: Which bulb will be the brightest? ek:6e++* jfvtmgua)f


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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 sjw nfb4,d0g59ndc2) d-rf d agwitch and three resistors are connected as shown. With the switch open as snfjd dnw04c r9)a gdb2g5, df-hown 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 switch and three rknc r.wew*b 46;ys*nresistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampern*c*rwr 6;k4 e wnys.bes.
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 are 1 2+krbkoz6i-,djvwa connectjwk2b kv ,d+1aoi r-z6ed 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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