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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 the metal resistor ,fjwgyz;9cj:t zo84xd 7v17jcq 8tif connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor 1z8yqxjzjc :78iw gdjot,f 4c7 v9;f tand 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_________ev b (7k(ecv+jsach resistor ib( (j 7c+svkevs 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 filamenmlg0w s98oxq4t wire of a lightbulb causes the filament to become white hot, while the larger wires connect809mwql 4 ogsxed 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 replaced with LED8-j*9w zfu kfes. LED is the acronym for which one of the follkf 9uew *8jzf-owing 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 je1 cn2:tr +ldarea A. It is to be placed into a circuit, be2:jn+ rdtl1c ut 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 made of the97.w whs- nx a7hysg0a same material. Wire II has twice the diameter and .s0 7awn7haws9-yxh gtwice 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 samh.q; pg2,zzv ve material but has twice the diameter and half the length of wire X. If wir vzhp zgv;q,2.e 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 resispbo*0i t-wu.x(vh zw9 tor 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 the resistance of this material because of tuvit b(-pz.9*h0 wxo whis 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 decides13mt :ruftm:g to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more lr:f 1m:ttu m3gight 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 matefcku cw-)zoal165wz8rial. The length and radius of1w5zckf86ul-)wza co 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 to a bat *wj5,o c/:czf- yy-vm kxi6xrtery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor. -/ xk,f65 -ozv cryxj:*wcimy 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 cirvw)gmp kxiply0pdhl*c9/9r -fouzt )v 5-k9; cuit diagram has internal resistance 10.0 kW and the ammeter has internal lvvx/cy t)f;5mgpli0 or pz k- hd9w-9 9u)*kpresistance 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 e)tae+ 5mc/gdjy bux7k51qr 2 circuit shown to the right. The three bulbs 1, 2, and 3 - repres5e5)x ky e/7dcmuq1+2a j tbgrented 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 circjr+v(zfdmm8ibg7( 2h uit at the right. If the current in all three mmzj(bh7fgd (v+ 2i r8resistors 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 represents a simple eleck0j4xz .j(8 ksu 2aujmtric circuit composed of 5 identical light bulbs and 2 m0kxau4j.u8(j2j zks 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 ishek2 f6,213vrm m vvjq NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equakv q6h,2j f2 vr3e1mmvl 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. Bulb X isbhw fn8emrc r9)cg)/r ,vpy1: 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 orb9) ,g1wvemr : c8ph rcfn)y/ne 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 identified rj1e hsgpq ojrpj(31 :z:inp: 2esistor in 5 seconds once the circuit was closj pzo1p:2e npi1s3qj :rgjh(: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 following simple circuit hav;gzp4*eng-da ewifaa2 6gsj;2v(-mi b)g ;uoe the same *oez6g2;2u-wa);( medpaivb - nggif ;asg4jresistance, 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 current thro8l g.8-c ouwm.+fel4fyq i2mcugh the 6.0 Ω resistor is 1.0 A. What is the power supply volta8.c-i4 8+oc yfq ml.w2eflmguge 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*ij5,kx y: pxu in 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 is the voltage acpji5:xxu,*y k ross 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 ar:wn0i6l+ bxxplp- 7j(- jhpd oe connected in parallel to a battery. Suppose R1 has 2V6wb 0 7-ppjo( lxpin :j+ldh-x 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 120ply4w j)3p4s0 2s1 am, dqs5gu avzjz10 watts and 120 volts. What is the maximum value of the cur2ayj zvqz50slpj)p4w,13as4md ug 1 s rent 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 resistance of a 60 watt lightbulb dhr7p3k a:v ,jj:tm; cv0b9lw nesigned to operate at 120 rlk;a mhnw:0pt:c7j v39jb, vvolts?

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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 dissipating 36 (rs,:m v(cs-sl nl a7vwatts a -c(:slvrvlm,n( 7ss 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: nry- eh/:/8yjlc 5ho trhri2 volt, 600 watt.” In normal use, the cur y i /yl2ne8 ::hhrcjth-o/5rrrent 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 cgjsp2a)a9 b+3rn2m x xircuit contain+n3xs amrx 22a)bp 9jging 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 jo+o bt 2z)ml) Ω resistors. Which of the following equivalent resistances CANNOT btj2 l)bo)o+z me 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 va z f27ifc/0tai.i.mh glues can be connected together in different configurations. If all three resistors are ugz 2/tfi ii0.ch m.7afsed 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, fqznks6of;6. k y.n5t9 lqkw )a total power P is dissipated in the circuit. How much totalfk 6.9nswyk. 6qqz l)to ;fn5k 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, having resist+w9 t/r6wl9wb nushh;ance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistanwsbthrn9w/ 9 +u6l ;whces 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 ofx+rojlrt f*b m-+4gt 2 12Ω when operating at 120 volts. What is thejb -t4mgx *ft+r2olr+ 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 dish pi h14syhl0-5sqan3sipating 36 waihs05qphs hn- yl41a3tts 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 amperes of current when connected to 120 volc-tpp:g ,;h/qgqsj d.ts. If the price of tjh qp.p;/sc -,gqg:delectricity 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 costpd*c 3,n t1vj0sresb 1 to keep a 100W lightbulb lit continuously for 1 year at a rv*1ns , rpj1cet3dbs0 ate 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 cur:ld .hqa+omf;rent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of theao.q hm+;: fdl 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 comp1qv j33ycgulg -k7 f7zuter rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protej3 - cy lzgf31qg7ukv7cted 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 batterqg m0f*lbo2,uqa;v o( 2,ppqr3p8 ei wy is connected to four resistors to form a simple circuit as shown to 0, 2*e3m p2lg8o,;uoq(vaq ifprq wbp 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 connected to wj tc9),xkh(jbkd+q hew d u -y4p9i27four resistors to form a simple circuit as shown to thh9 q742)+j(uwd 9cdti ,kyxk-p wbhjee 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 ag v4/15xdvqb8 . ypj0x(awi kcre connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampqxbd 4pck01 y g5a(ijw v/v8.xeres.
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 sw km/c770ohvx /j 3x u7ptr3iqwitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter r7v0 otqp ux 7/w cx3mhkj3i/7reads 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)lr164ejvxq s.:q hvr switch and three resistors are connj1slh)qv:e4xrr v 6q .ected 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 equivalent resizz c-lbkm6gu:7j-t 5.yps r 8jstance? Assume that all wires are id5yz8gpsb mr.ck:jt l6u -7-zj eal, the battery has no internal resistance, 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 of the circ,8dukpfa5 ff 0uit shown to the right with resistakffd508a u ,pfnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistorsyd4+ f+lwvd(avw r p+3 connected in a combination se3drdf wl(++ya 4v pw+vries 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 resistors connectf 3movv2 kbod;(a9.t led in a combination series and parallel circuit to a voltage source.9kf;3tv 2d.bovl (mo a
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, avp8 l,k8,frm5:i3z jooqh 1f all of the bulbs are identical. Which bulbjz5hfr,f o 3, vml1kaoq8p8i : will 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 ammetr,unys-(8nf aer, a switch and three resistors are connected as shown. With the swi ny,uf-san8 (rtch 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 ideal ammeter, a switch and three resistors arqf9 : dj5ho+1ib 4ckdc4 n9wkje connfkcjo45wqc4nkhj b+:91 id9 dected as shown. 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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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 resistorq1v*uqc zc9s6 s are connected as shown6qcqu* v1 szc9. 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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