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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 electric1ta3h4 *vww.z j09cr rtsq9hxx(5tks current exists in the metal resistor connected to the battery. Which one of the following choices best det.qzx910tsc3krvjsr5 aw t94h (xh * wscribes 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 para(,2zd3g*b+xog f dn hlllel, the_________each resistor is the same (go2ddz3h gx,fb+nl*.

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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 lightbulb causes3i xaq-d3ot4ey6 mp rc:kq..* zxq;jp the filament to become white hot, while the larger wires connected to thp-oat zx. qy4x3kiqjd63; r .epc:q m*e 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 LEDs. LEaq73rshh o47wD is the acronymah rq73s7w o4h for which 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 has length L a e9fd5rw-bdywr1a 01 l(g:lqand 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 ratio of the new resistivity to the old resistivity of t e-(rryl:1gw1 5 da9bqaf0w ldhe 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 ccqtyh 3 b9v9tp3h2duyq*99yof the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, Icbtvy*3 phy2qqt9u9 9d 3hyc9I 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 diameter and half th)x 98eqevv;yhe length of wire X.;)v9e 8 evqyxh 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 piede 5wp0h g.d*yce of material is then drawn so that it is a cyl5dwhe 0.p*gd yinder 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. klpbh. -nupe*0 ckq45 He decides to modify the filament. How should the filament of a lightbulb be modified in order topchnu*epl.4 - qk5 kb0 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 samem:a 6k t.cy.*3ekhmme material. The length and radius om.:y3 m.ea *ke6 khtmcf 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, aewrh fe; ouwse *n-/.jqse 2,;re connected 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 iee.fqs*u/,oj;s2;we nw r-eh n 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 diagram has internal resistancbh :0lmmaf4(fg +: ia/hs7 vyfe 10.0 kW and the ammeter has : +vff:hyb 7i ms (lh/0g4mfaainternal 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 compoundkzf5,69v.vqgs r/ml a circuit shown to the right. The three bulbs 1, 2, and k/9s .mr gqz5f,vv6al 3 - represented 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 simp*oo8xxm 5sowd ua)/t 3le electrical circuit at the right. If the current in all t* /dwoo3ts) amxxu5 o8hree resistors 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 rbde21ahyt-;non; hx8h* pf* iepresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or nde x*nho*thf;-8b p h2;ia1ybulbs)
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 simples1t7gaqsa l4q/ lyr8 :2*zamu circuit shown where resistors R1, R2 and R3 are havqr7 a azq 4s8y12:tgul/ams*l e 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. Bulb d,pwx6bq)bx7 X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs dq6b )xpxw,7b 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 cojl2r0av 4nk gh/vsmhh( ,7-ck 2eoi-zulombs will pass through the identified resistor in 5 seconds once the circuit wj(z h /aog -kcvs-kh2li m v7er0,42nhas 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 ft-8p )vkv/f4d1)ifjpjp ob 7pn ;qj v2ollowing simple circuit have the same resistance,jvvi)npq /b jp td-pf7 pjvo281fk;)4 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 h k*f7q(0b bclcurrent through the 6.0 Ω resistor is 1.0 A. What lqc*k( 7bbh 0fis 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,mawx 8fcqf*0,x n+)4os zws5f and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 haxoqm4f)8f*nc,wsf 0+ asw x5zs 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 connectedy 7zj8lai/a 2mnpdv, vl; -fb) in parallel to a battery. Suppose R1 has l8av yimbz-/n)7pj2f a,dl;v 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 v+m3b eq8jive 1olts. What is the maximum value of the cb ev8iq1e +3jmurrent 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 designed to operate at 1205l)n;mp ls-bq vol qbl;sl)5mn- pts?

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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 flhadin5yjma). 7y,;xv 3yi8 ci ows through a 4 ohm resistor that is dissipating 36 watts of poweryh c y;3jia .8n7iiymx5d,)v a?

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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 v flbq4aw)1-+ )aodh amolt, 600 watt.” In normal us1 )dmo q -a)wl4+abafhe, 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 resis m*h zu-m zz+l+7hvacl6k//n ctances could NOT be produced by a circuit containing only three idenk l7huv z*a/6n/c++mhlmc - zztical 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 following equiva(xr)2 lrj3kbd k c(jw4lent resistances CANNOT be produced using all three resjclrkjr 2)(w x 4bdk(3istors?

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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 connectz1od*pc da z.7gl*- naed together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produced?d*zdpg7z*ln1o- . aca

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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 tom2zd f8gef;/ ghyw5;d a battery, a total power P is dissipated in the circuitw;y /ez5df;gd2mhf8 g . 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, having resistance R1 and d1 sfdb;5iz8iyb )kv) R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following stv;si)yi 8fd)dk 1bz5b atements 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 ced /3y m2d klnqqvb dwv1a87*bgv29+has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45bc d1mal2*9nqkbe3 dgq 2vy v7d+vw/8 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 dissipat a* ,fxs:cra+ding 36 wascxda ,r*:+fatts 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 drnjr xe)1n5f rq*w6e;pdj rt8 :aws 13 amperes of current when connected to 120 volts. If the price of electr) 6tp:rjr 8e1*;5 efnxqwrjndicity 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 howg t.)tpsj h /yf+(*vhv much would it cost to keep a 100W lightbulb lit continuously for 1 year at a rate .(svf/typ* +t gh )vjhof $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 results inz*lxy)o;;rcympa 3f4nm4 c -d a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of zcr n ;a44mp m3xoc y);dly*-fthe 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 compuhn;(m wz3f, u(4to xyfter rated at 500 watts in a 120 V circuit. If a(m(,fz w4f oh;x3t nuyll 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 to four,hbf;l*lz+ sxt h,mg 70zz/rz resistors to form a simple circuit as szsgzrz7 fh; +l ,zh,/xb 0t*mlhown 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 connected to four resistors to form a simple circu4y )lzb2e g vqdh01 )6s5iqhrmit as shown to the ri)2d)r16 5bh hg4qyv0s lzeqmight.
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 batteu9swx )( b5jvlry, an ideal ammeter, a switch and three resistors are connected as shown. With tx(lu )bsv9jw5he 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 battery, an ideal ammeter, a switch and three *4 :-bqf jh pyeb) hv(u86 gu*cu0p3h0uheefyresistors are connected as shown. With the switch open ap yj0e8behg4ecb( ffh0uuu-) yup 6h3h*q*: vs 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, an6gtfs4l/-warwiyd(azj /p8vk cd * r(+, co;g ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0/ j4cs(-wf va*zrr+a(odgk;tpg6/ c8, lydwi 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, wha* /fss1k4z k7(jdgx qmt is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three k g7d(zf41*km xjq/ss 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 circuit shown to the right withaulr 9.sz9o 0fm( .z-oqz-xg m resistances ol.a m(q9--zo rzxfm 0.9zs ug$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 iden pi1lse0v0n+reyk 7n:k8gejpy 0m +l0tical resistors connected in a combination series and para: 00p0+k+jn s7 y1pimelrnv08 gkyeel llel 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 connecgf h z6* fi6cb 81:e3.jddrycnted in a combination series and pae:ji6 d n8cffr.*y6bd z3gch1rallel 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 identica zm c0u3 / mc9k950nskdoh)cugl. Which bulb willnz3d)m 0ug0uch k 9ksc c5/9mo 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 thryng iyrq2fm:4 z2e rnl8z0 etw35wb8-5 ) njesee resistors are connected as shown. With the switch open as shown in the diagram the0efwe g z4 32lybm :8qnn2wyrri8 ent5jz-s5) 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 h+b . ttn ;u3i.mmp)svresistors are connected as shown. With the swit+ tnvp. ushm)i;b .m3tch 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 are conne:rvz4 5x0i3d yxe.lgqxu4g (ected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amper:4 ex xzig (y03d.4qgvlruxe5es.
When the switch is closed, what would be the current in the circuit?


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