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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 current exists in tha)3yi b 0gia4 ncgt hc-80)o7lx zom:ae metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the electric field through the interior of theoa m0a co0ibz)4:)y8g l3 hnc xa-gi7t 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 6l u wtj3r/ha-q6fl872z ubbe resistors are connected in parallel, the_________each resistor is thq 2ab-z6w 7jul8/f6belr3u the 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 ligwl2)2.2fjv(moq k6nqxdzdcf r/i6 5 jhtbulb causes the filament to become white hot, while the larger wires connected to wqx(jn5. cmkvz6dd 2r )iq 2f /6jlof2the 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 bein7 mn-g p4+rmh*0cmafog replaced with LEDs. LED is the acronym for which one of the fol0+h7 r a*ommn gm-4pfclowing 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 has length L and cross-sectional area A. 1mkskf-v x zl:3ryz91dco31h 17mlj t It is to be placed into a circuit, but it first must be cut in half so that the yk373zjkx91l:m -mvrt1d1l1hczos f 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 th2/pm o7zm 8jhf-w:zjpe same material. Wire II has twice the diameter and twice the leng zzh8pom2m w jp-/7:jfth 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 bul )jdb l n3b4,rmq; /.qnvcr1et has twice the diameter and half the lengthnn ,be41)/;lrq .lmd bvjq3cr 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 L and radius r. This piecehh7a kn(61 l xbd))0bpmyedx- of material is then drawn so that it6-m hbxb (0ep1xyld) )dkn7a h is a 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 Thomaszgw o7lfm qi4:37f wks6p62 or Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order 7w wkqpzo fgl4 76m3ior:62fsto 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 sx 03txl;o6) fj /wjmbresistors are made of the same material. The length and radij0x)/o ml6 tjswf 3xb;us 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, are connected ty(6ab5f qi5f *pu(aq:mm + zsao 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 resifmaqmq 5b5p*i:z6ya(+ sa(u fstance 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 internalqy9(b3dqjytstuthbn265 i 6o1 7fq kw 32m3ds resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most djdfbqmq 5b36 3sqk i7hyso6tu1 ( ytw9n32t2nearly:


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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 tyw4yjxl 9avakqa6i)q6+. a+puqx/ 4n he right. The three bulbs 1, 2, and 3 - represented as resistors in the diagra6l )aqqj4nvxap+q9+ 4ay6ikuxa./ywm
- 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 r:ire8(*+a7gb +vqu nx qdv1 (x z.iwpcight. If the current in all three resistors is equal, which of the +bwq 8 ag (xxvidi pqev(+z1u7n c:*r.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 -i.pw+px m-zj electric circuit composed of 5 identical light bulbs a .mwp x-pzji+-nd 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 concevhee(cc. q m 4+)5lbceywf0,e3bzc h*rning the simple circue (,3eb0* ewh zl qbcc).hc5myef+cv4 it shown where 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 series to a battery. Buliy:l )zy5uxm 8b X is brighter y ylim:u5 8xz)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?


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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 through the id7pk27. slo*al 4zs rlon1s,6 r6 sklozentified resistor in 5 seconds once the circuit was closn.ssrso1zo6r7s o*kl la2l7p4 klz6 ,ed?


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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 following0 j *uui t)zv7owdhdsgxf7;:+ simple circuit have the same resistance, which would dissipate thd itju; d07z w*)g uv:o+shf7xe 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 diagra+8n cmmge h4 i-s1xi o u3xljc5/9,xerm, the current through the 6.0 Ω resistor is 1.0 A. What is the powe+ ohe/xmig,i9ju-lrs8 mcc1ex3 n5x4r 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 s 5v9wkp rgix)yt h(m,6eries 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.6 phk(w g v9yt)ixr,m5 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 rk;p-2 vm6q(ygy: r6karx h*e wesistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has ra6;em:2kv( -qxyryk h w6*gp 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 an4dereun rv)0 yw n8jjk3(. 1ood 120 volts. What is the maximum value of n wu0j4ye.e j8vor1o )d3n(krthe current 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 resistancerhob 2) mkxq: zi-j.ndn. vn46 of a 60 watt lightbulb designed to operate at 120 volkd)j6qbvo r.i 4n x. :n2h-znmts?

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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 re)pmk/b2y;)me36hlw zqs dkw8sistor that is dissipating 36 watts okm)/s3zhp6; 2kwbqywm8 l) d ef 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 vbl1vmv 6d *ns e8,u oc-akc7p8olt, 600 watt.” In normal use, the currv acpok u88v*en17,lbs6 -m dcent 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 produced by a c24nalkv3, la.u dwq k;b s73ttircuit containind wkn;4tvb a2atul33lsqk7 ,.g 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. Which of th/buv/ hkj- bw35p1xu oe following equivalent resistp/h5ob wuu-/ jvbx 13kances 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 different values can be connected togethe/ 9( zgg2x:ju rn 0n/jai6dcukr in different configurations. If all three resistors are used in a circuit, how many different values of total resistance ca (u6u9 / zxnk g0idc/j:jn2gran 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 (sb o 0mdqqwkg +49.adof40gg resistor is connected to a battery, a total power P is dissipated in the circuit. How much tk od. 4fg 4mbso9 0qdag+(qg0wotal 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, haeyc6i7ac t0 6sving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Whic6ey6 acsti07 ch 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 has a resistance of 12Ω when o jgwc 2ln433z ajtdo7(perating at 120 volts. What is the minimum a(7 a3tnjdj3g2wlczo4 mount 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 x4q5 06b ,v,,:nbsgztyt nugn that is dissipating 36 watts of power? 6bbg5qtu0:sgn ,vy nt,xn4 ,z

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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 cmo1 dyu6zb th5c7vkce-h6s-*ow67o yurrent when connected to 120 volts. 1 6*c ho6-bczyew o77mt5vy dsu6ohk-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 miqdi68 ;e plu.uch would it cost to keep a 100W lightbulb lit continuously for 1 year at a raud.qe i68i;lpte 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 oix3nn6 y86.ndo7 .1zfetcimg f 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. W neiin 6d837xfy1n tmozc6.g.hich one 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 owns a computd 5+swb4tqs0r er rated at 500 watts in a 12+qrw0d5st 4sb0 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 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 tougd6/ w3 y5dco four resistors to form a simple circuit as shown to the right/o5d 3ugwcy 6d.
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 isl.5e2,8f2rzpj4h 0l o j bxf*dn,akg ;k2jl sx connected to four resistors to form a simple circuit as shown to tjk;sfzhfe8.l4k 5, 20 lp lxxn2,*j2bjda go rhe 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 resistors are connbwkiz m:5rdn v(nqvv /y:nmm:9 fy; +,ected as shown. With f5/vyrd:bwmv :i n(9 ,mn+yv;:mqz knthe 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 battknue0:m7: e;6 odm:f pq kx-ifery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2fo ikk fm-u;q6dm:enx7 0e::p.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 s gak 8ghqo(3v. -snl/nwitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammhg3ag n vn-(ks .8lq/oeter 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 lel.r) .0 off/heomr9the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have iden9rh. rf/l)0 .emofoel tical 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 resistancr5 q ,-du5 )1xbhfygkle of the circuit shown to the right with resi,5g51xhk b )ulrqf-d ystances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 /9g9gj f )gwa73mo qgmfive identical resistors connected in a combination serie3q7ogw 9 g/jmga9)m fgs 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 id*6iss)c 9tc pt+ 3el(iwpqi7g entical resistors connected in a combination series and parallel circuit to a voltage sourcet3+isccql pseii6 g7t9p(w )*.
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 ide-a konxfup 24:px;n.u+ sgp9yntical. Which bulb :nun ;2s.p9 o4 xf-kaugx+ ppywill 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 ot 1f,o.0u2qb; pjkq zjzq9,y three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readq01zuo. o j2 9pfqbt; k,,yjqzs 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 resistors are col,or yp)8jph f3yvyomqb.4-9 nnected as shown. With the switch open as shown in the diagram the ammeteyv-9fpj8 r43.mhyq),oo plyb r 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 swuh -+7mbkbhfew357v e d1f0zuitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 k35+v0e7u -7bwm 1eduhfbfhz amperes.
When the switch is closed, what would be the current in the circuit?


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