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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 electrz8); fkqcuxby1k xf(r1ee0 )mic current exists in the 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 rfe;( exkc) 0xb81)1q fkymzu 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 ,)oq*bkp9* 9opv jjevare connected in parallel, the_________each resistoq pkjo,eov*9*v)9bjpr is 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 u3)hmiwx9z1 qq ; s+aiigd8+l the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain m i )+w h3q;iim gd8x+zl1qas9uuch 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 azddlz 9 ,/t .sw*dge)are being replaced with LEDs. LED is the acronym for which one of te.dt9, s/ zl agwzd)*dhe 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 cylindricalogt2z 9pa+-,hu bhj w4 o ;;o5ehdyi+g graphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be+b ua2;h gi+ hwz o9ytd4h;pe-5gj,oo 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 wireza0 h7i3 xtew+ II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resis7itxw+a 3ezh0tance

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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 samk.i5y h34xvxnh jv 0 z );b2ubfq.sif;e material but has twice the diameter and half the length of wire X. If wire X has a ref z h4b.qfvbui .y);hx50;jvn 3k2six sistance 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 resistoybo1 q;b*l1uor has length L and radius r. This piece of material is then drawn so thaobyq* ou11b; lt it 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 Thomas Edison wants to mak2sect)c xof45 e a brighter light bulb. He decides to modify the filament. Hox os2e4f)c5tc w 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 cylindr 4g8m4kp1maepical resistors are made of the same material. The length and radius of each r 1m a8ge4pkm4pesistor 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 battery (htbndk z 8r ;gp8p,ohw 3)(mgin the following way: “Tpgkgh(h8 r3mbp; (8ot,n wzd )wo 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 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 dim k gzpx/ 5.s)aqgsub.p0j,(bagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readi(sszb50 .m/,qbxapp) gk jg.u ng 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 showj(0. jnal5zgiqg2m; u2 f* cfgn to the right. The three bulbs 1, 2, and 3 - representzgu.c*( gf2jag ilm5q2 ;j0nfed 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 circuit at the right. If the current in allj 6yd6;g0h f51wr ig (oc7zvlg three resistors is equal, which of the following statements mg6;jr(0 wio d1g yh5c7gflz 6vust 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 circuit composed3pfz tdht/r wy5m(u8 3 of 5 identical light bulbs and 2 flashlight cells. Which bulb (or buu8 p/r3tt df5 yz(h3wmlbs)
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 i (hqtn 1+agxf rf(93econcerning the simple circuit shown where resisfa erqix(+ th1g f(93ntors 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. Bu eye,kgkk6 :5rlb 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, whic:gr6e 5ky, ekkh 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 passi7g(ms6h fr uv)gx ;r60s-z hu through the identified resistor in 5 secox 6)gz7 m (-0vsgi fruh6h;usrnds once the circuit 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 resismg m(1 ivbajt9r e0mlpp,83k ;tors in the following simple circuit have the same resistance, which would dissipate the greatmm 0,;1pral9gbv (mje 3kpit8est 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 j xgro2r3+/ xadiagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supplao2g /x3rrx +jy 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 R1r tdm qe/k0y8/8 c,fiy7s+tik , R2, and R3 are connected in series to a battery. Suppose R1 carriessq/7rk+iidyy0c m 8, tkt8f/e 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 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 (a hw5jlrp15ljo;o;u resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 lru1wpo ;j5( o5;ahjldissipates 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 coila7hre-ok y5z5 is rated 1200 watts and 120 volts. What is the maximum value of okhrz5-ye7 a 5the 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 resistance of a 60 watt lightbulb designed to ol2g(x*ngg-)k itqzt / rpvu(he;-w7 operate at 120 rzg7wi x/gp;2-h(-t n) goqt(v kle*uvolts?

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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 throuh/ x(:3);iqsszeqelxs( ja) c gh a 4 ohm resistor that is dissipating 36 watts/ e(xj qexiazs(:sch;)3l )sq 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 tqxaf 0kf57 )7 it/rnal,/ acfvo press clothes is marked "120 volt, 600 watt.” In normal use, the current ikaqxt,r c7na/f/ 5l f0 )7fivan 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 proy:l:r9:mc,ty4yhsk - 5l 0pz(eoxwr h,wks7 uduced by a circuit containing onr( :whl hzxyw,9m e 70l:yuk4strs-5 kcy,:poly 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 following e k/ jqxcclm2((quivalent resistances CANNOT be procj xlc( kq/2(mduced 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 together in d yw,)oyc9u,thckx p401o*ifkc st6(q ifferent configurations. If all t4 y,qi,0 oxp16k(c9)kyt*wsu tofchchree 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 trlx .,ty;r, qmo a battery, a 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 sa q.,rry;xl,t mme 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, havi:oxyyew (2hg:ofl,30 sgsq+eng resistance R1 and R2, are connected in parallel, the equivalentqy+oyh ,wfs( 2:3o0e:gl xseg resistance of the combination is 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 designed such that it has a resistance of 12Ω when ope j-8dqs*y zn6hehyf 32rating at 120 volts. What is the minimum amount of time - ezd3yhsq2*6fhny 8jthat 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 curret gc81em+rwo omio *9(nt flows through a 4 ohm resistor that is dissipating 36 watts of powecre1wtio( 8+ m* 9oomgr?

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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 cu)pwb4dqit y t,f1:u7srrent when connected to 120 volts. If the price of electricity isi u:fy,)tqdwsp7tb4 1 $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 conti a/hrf t*,pd8qgd 6gn9nuously for 1 year at a rngr8 *dh/ pf,agd69qt 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 current of 4.00 A through a lightbulb results in a pocb9) rarvq8tkyu- . -zwer of 24.0 W associated with the bulb. Which one of the following choices bc)b-8aq - .tu9rvrzkyest 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 s(kforo ;67lkm zq09 qkix owns 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 computers can be operating at the oz; km6fo k0lq7(rqk9sametime?

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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 battereyq-pv(cx267 lbu12yj ) 59omcizzgz y is connected to four resistors to form a simple circuit as shown to the r6ygu7-z x9zv l(q2pce zbc)ojy1 i5m2ight.
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 fo4-du vp4loe78. oeldnvu*jrbz68s. iur resistors to form a simple circuit a.ll6evp 8rn 7o-.jviu8s* 4zdebu o4ds shown 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 ideal a 9s u ce*oa07qpe0/5 t-mgvozhm a/w)rmmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the am/-t we*vomau7ro m/5 q)saczep09hg0meter 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 3bqifgdwn:1 ;three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rq:1dnbg3;wf i eads 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 and t, 81n yd0umqwdmenlcuu zjkguv ;7;z) 2)g;: zhree resistors are connected as shown. With the switch o 1due;2nyn)w)u mzgzuk,:c8 jl;v;qdgm 07zupen 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, whatr 3ta+u lm/d4; p1zgsy is the equivalent resistance? A;zutmld+syra3 gp41/ ssume that all wires are ideal, 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 resistazcm:p zjgd6 r7- ix;*knce of the circuit shown to the right with resis* z ;izxcg-jp:dkr6m7tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idenrq(* z)dhes mdid.: h*tical resistors connected in a combination series and parallel circuit to a volqi:rd*z*s e(hdmdh. )tage 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 conjh*w+*l(p 87bb uf awnnected in a combination series a j u(+f*bwwp7lnb*8hand parallel circuit to a voltage source.
Which resistor(s) have the greatest rate of energy dissipation?


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单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.29: In the circuit diagr9luwl 0bfuek zbh*(17 am, all of the bulbs are identical. Which bulb will b7bll*9w1 f(ku0zbh eu e 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 batta7jy2rbxs* (a +o8kr very, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the a7rvx* jyokrb +a2 (8asmmeter reads 2.0 amperes.
With the switch open, what would be the potential difference across the 15 ohm resistor?


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49#
 
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  02.22: An ideal battery, an ideal ammeter, a switch and three rt;.p* e)ecadresistors are connected as shown. With t*dc)e p.ea; rthe 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 resistors ar/tr .a;u:hpyqi7yb3k a+s8f pe connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 am u;ba/katfh8q +yi.pps3 :7yrperes.
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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