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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 curfk(ghe(:jd9u+z cg - lrent exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow ( jugfhd+9-k gl:ecz(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 par vvkq(-q6ui(y9*k w0zwz 1;go c,v fhbkjp).fallel, the_________each resistor is the sauk .0cf(iygv1;(jbq ho9* )k, wpzkv6-fzq vwme.

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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 thznl)nfv-+du4 y g g9aupj;o5n ;6b 2vmin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler.)v nbzogv2 g+n l6pn4d5m;a9yf;u ju- 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 qx:xy(x;i -xng :o0 ie+fnww1household lights are being replaced with LEDs. LED is the acronym for which one of x:y: iw1;( g+ xxxfwn0qoi- enthe 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 and cross-sectionaln1jrpg5n m: 94t:eqtax sr1v2 area A. It is to be placed into a circuit, but it first must be cut in half so that the new lengtht4mt29x 1 n:qgsnvp ar:rej51 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 the same material. Wire II has twic. mohq(1b( exee the diameter and twice the lengm1(hq o(b .xeeth 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 l: gsq;6a h4wkhas twice the diameter and half the length of wire X. Iahg :;w6lsk 4qf 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 rkp s2gm0la.f-esistor 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 becau-0am .g2pslk fse 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 Thomatm3n; o3ea+s/6pqd 1rk uc76bw/-htwb h3qtes Edison wants to make a brighter light bulb. He decides to modify tph qw 7w+atqm;bco1nhb-3t et /3 6/3k6usdrehe 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 material. The i*,ym,quc twi3p v8:clength and radius of i,*:ciqutvym3 c8p,weach 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 battpn,;qgxas 7(f ery 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 resina x (fpqsg7;,stor.” 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 dilqz2 m f6c4 uqait:16dagram has internal resistance 10.0 kWtm:f2di 6cqu a6qz1l 4 and the ammeter 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 to the right. The three bulbs 1, fir.m 6qk3vl 8j *bw.xk5y4xb2, and 3 - represented as resis.x k8 i6rk*x4wb v5y.q3mjbfltors 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 electzt ;-v-m;( zh +de9-az du yty/v3pssarical circuit at the right. If the current in all thr+/3yydpa9z ztz; s ( sda--u;mvhe-vtee 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 represents a simple electric c 7tsdf1dh 2l;4aitx *lircuit composed of 5 identical light 4ll ftx17*s2tida d h;bulbs and 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 concerning the simple ciejgb:v3 doe ()okhu;d;si7eco;)y1 krcuit shown where resistors R1, R2 and R3 are c3j:1u)k; e(vyd;d;eoo o ebih skg)7have 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 seri8(ng2c)aed ow1 kmz6hleev(,8 2niwbes to 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 obseevde w(2 i6zn8h ()2kgbwaol1ne,8mc rved?


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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 reny z)r r:0)ubhsistor in 5 seconds once the circuit was closed? 0hr n): )ubryz


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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 t8 ip 1dmbplux-6i2t(c: 6 sthvhe resistors in the following simple circuit have the same resisdlutp ps1(i2 hx68i -cm:btv6tance, 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 accompanyino 62oibx 7ir lu,9de6lg circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply vr 69,uiob6eidxl ol 72oltage 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 ba i5b:5mn-n i/mfjx cu.y0xfx /ttery. Suppose R1 carries a current of 2.0 A, R2 has a resisbncy:x.m05/f5 miixuf xjn- /tance 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 R1jkp.o9epc --5;fm9l nog. f ai r-z0eg, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, .g-z i ;09pe9jnofocra5.g -l-ekfmpand 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 volts. What is the mlj;sj, *m4p bxaximum value of the current unde;js4 xbmlpj*,r 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 operate8 mincwowfsnz.1dw dbh. 6.*m091tqo at 120 voltw 8q fzb1t..0nm m hdoi6nowcwd9.1s* s?

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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 dissijo gfzo(z99.)rszn w71cph a5ek9lm8pating 36 wat9p ho9l )c5zzf9grk zs (1mao.w 7jne8ts 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 usec9fk zed6d,)o r g2*kd0-)lqjekqvm .d to press clothes is marked "120 volt, 600 watt.” In normal use, vgz. ,ld9fd-rq m)oe* 6qc ke) jk0kd2the 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 produ azas /u5e6pvq89:z q2gyw r:bced by a circuit containing only th p z68seuq:5 :zr9abva2 qw/ygree 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 threghdfs1rot ac:chx 4 .0)+tq(he 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resistorsd4oa.:0tcgx1( hhtfr + h)qcs?

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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 togetk 91z2la n7ccl pduh:9her in different configurations. If a7 z9ll:cnc2puha91k d ll 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, a total power P is d+go t)2uh 6ue-ess(zwissipated in the 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 o o-z+ 6e s2thgweusu)(f 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 rhjj cyos)l md(3 d7.1kesistance R1 and R2, are connected in parallel, the equivalent resistance of the combination icymso d() 7jkl1.jdh 3s 5Ω . Which 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 desizfs* :+ vrv; v*wsuzx)gned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water* );xu:*fvzwzs+vrvs 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:k*n bg /u ck-/xpkqyg4ot:gbi k(4z / that is dissipating 36 watts of/kok 4it kkgqb* g-cb p//:yxz4u(ng: 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 amperes07wamlv841fx/uag6 tte tug7 of current when connected to 120 volts. If the price of el xugg/ f7etl8aw 07ta4 m61utvectricity 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 100W lightbulb lit cogr 9b kr(9 ;ci ygd;fsjpr.m3:ntinuously mc 9pgj.;yk9(;r r r:gsfbi 3dfor 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 oz6x -rr 4ws8e;-60a nvfifrcthrough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistanir6- -f8ozvfxn a rcr;s e6w04ce 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 500 watts inc-k0ax 9ae,k5f u/x o 4k8ciks 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 computers can be operating at kcs8ea /4 xc kiaxk,o- ufk509the 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 isp*nc rzr3l, -k connected to four resistors to form a simple circuit as shown to the right. -* crn,k pz3lr
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 battf q9 orxd4 )c9/c)qpfpery is connected to four resistors to form a simple circuit as shownfqfq)c/ cx pp d9o9)4r to 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 idealywu-6u pvg(m e7/r dk* ammeter, a switch and three resistors are connected as6geuury- kmd*v(w /7p shown. With the 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 idev m74 rr 45f1rup- m7eiisce9o7hd,gral ammeter, a switch and three resistors are connected 5 rgsr-fi7muvcphm1 9e 4e 7id74r,roas 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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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 fq 0 fqme(tg;1and three resistors are connected as shown. With the switch open as st(0 eg;fmqq 1fhown 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 p6 6,xt ;lg r*dr0j5 svs:m42wsr rtkrequivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have id gvks465,2jxrp; 6l*srm0 r :rtt swrdentical 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 thuuqf l. ig8sn5 :lo:2xe circuit shown to the right with resistang5: oqiuf:.82s ll unxces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 indg rx:j3( 0b+e v3+ eqs0mwujz a combination series and parallel circuit to a+u0xbqj v0: g zjw3md+e 3r(es 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 connected in a combinat a e0s,6nkp n9: v*3jrsj;oiwbion series and parallel circuit to a voltage sourcej o*60ae sk,3 nbj;v pw:9irsn.
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 bulbs3hz 82;g*actfd c(uiw*w)4)s isjht c are identical. Which bulb will be the brightj )i2iwc 3zgt)*ca4 sh dcs f*(;ut8whest?


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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 switcmg4la6oc3m 8kh qd)ix w7d r71h and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.37mwo mr1k ig4hx)7 8dl6 cadq0 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 swit,dbj:w9ae9uy 4afetrb4a 4 *tch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeteu*br4:ef 4jt9a ty,ea9w4d abr 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 rv7n59;bjycgk ji )) tsesistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. j;tyvbn7)5ic j)g9sk
When the switch is closed, what would be the current in the circuit?


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