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习题练习:.Resistor.

 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 icn dmvm 4v6j/(n 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 the interior of the re vd 4(/vc6jmnmsistor?


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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_________each resif .bb q 5fv18dm+av/ukstor is the sam5u/b. bv1ad k8+fqfv me.

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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 tfc 6gs;8de tpht;9+ dvhin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This hadp+st 8cfdg6 h;9;e tvppens 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 replak84ebptk 5h-y ced with LEDs. LED is the acronym for whichtbek8kyhp5 4 - 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 and crosset9*nc( iud, f-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that the new lengt*dn et 9(fci,uh 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 mak mqn(z)9i6pm de of the same material. Wire II has twice the diameter and twice the length of I. If)9mpq 6ni(kzm 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 ham sl uyodj/xi:/.r4* ss twice the diameter and half the length of wire X. If wire X has a res d*y. 4s jolx:i/m/ursistance 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 resis,x3 :+skw kmvrtor 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 this procex3: r+svm,kk wss?

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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 b n-k2isecqe3 52(sbs k(wl (pprighter light bulb. He decides to modify the filament. How sho e 5(blis(2knpes3p(2q-swck uld 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 arh s8 pcjm8sxuw 4124lve made of the same material. The length and radius of each resistor sc2wulv14m s84 hxj8pis:
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 batfhfp.*d4 cqeqfkl9** :u x/k ltery in the following way: “Two resistor*hpk /*kf:f9xfq 4* qdlu.e cls 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 accokfm9 , vhy.p6wmpanying circuit diagram has internal resistance 10.0 kW and ymfp96 h.kv, wthe 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, 2, au;hd/hg +tz )pnd 3 - represented as res d puh;zg)/+htistors 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 tbf use0f(5x *+d :axjv laxi,5he right. If the current in all three res0*ib as5evjdfa+,l x (fux:5xistors 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 represeiyg g y9/9z b0:j: ps)wxx(sdy.k3vk nnts a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or 0y 9xw(:/xj)kisd:bv ysg9p.n3 kygz 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 concerningi1; n/5k;g x9ms z5ifp2dll ww the simple circuit shown whw9smnx w1 z /glkfd5i;52lpi; ere 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 ba /g2 )e(rsmz pul2p8owttery. Bulb X is brighter than bulb Y. Assume all circuit elements arepl)8e (r g2osm/zu w2p 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 wiw:v o,):iat fkll pass through the identified resistor in 5 seconds onc:a,ti :wvo k)fe 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 resistors in the h.o2 ma)wg n9xv) tq9txh+f e; following simple circuit have the same resistance, which wn+ht.e fmx;))wvxo h aq t929gould 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 diag r nk79 57v60ovas4)edjf47nxltmr xhi,xn o(ram, the current through the 6.0 Ω resistor is tov emrnh r5ol7knxjv07f )46,(xs x9n a4di7 1.0 A. What is 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, and R3 are connected9f30d e(o) avir)bxar jw 1m8p 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 across 8ia )( xmbo)ad3j1v r90e fprwR3?

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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 conne ra38 -*ohqfue2li mvksa7h,0cted in parallel to a battery. Suppo k-a h380 au7s,hilv2* qfremose R1 has 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 volts.zh 5 upw-8s. *zakwa6vh+lvxj0cjh+ . What is the maximum value o-*.vkzjv s. xp zh aju w6hc++wal058hf the 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 lia c4en.lgt::66tgyh 4 9( hmwfcot.zz ghtbulb designed to operate at 120 vofcm:6tna 6egzhgc hw.olt9t:( .44zy lts?

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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 4f6pi 7.h 7m;zk;5dz aru)iefl qwxs1); knuo4 ohm resistor that is dissipating 36 wa air6kniw d.f77fu ;1ls pq5mz4;x) eoh)ku ;ztts 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 ma:45nm eum(pjurked "120 volt, 600 watt.” In normaeummpu:n ( j45l use, 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 resistances could NOT be7umh7rfkiyjoa97f i 7z ic:/sv: lq15 produced by a circuit containing only three ide75:zifyqa777o :j v9f h/l1crk s uiimntical 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 reufm-34, s9etg (byj a;xmf0ycsistors. Which of the following equivalent resistancefj yumems49g tf( x3cy;a b,0-s 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 together inui v 3zu5kl(2p different configurations. If all three resistors are used in a circuit, how many different values of totalu zv2i(upk 3l5 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 e:yu l7d)y5 t:q:vlvs total power P is dissipated in the circuit. How much total power is dissipated inl:v::ds5u e qy)7lt yv 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 R2,rvzrv7j9y21 iox pcoc*; 4g m) are connected in parallel, the equivalent resistance of the combination is 5Ω . rooz1;*9c x4 rjm ) 7cpivgyv2Which 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 thatz i8v2j,7o)zn jubj6 r it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time tvj 6nj 72oirzj ub,z8)hat 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 currh(y i 1,rki+*k3sshu6yfycx/ent flows through a 4 ohm resistor that is dissipating 36 wattkk1s,x* i+( 3rh cuys6iyfyh /s 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 draw9i a*zav1ak1 g6j 0gvys 13 amperes of current when connected to 120 volts. I zag0j*691yaivka v g1f 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 much would it cost to keep a 100W lightbulb lit condj jhmyx5wz1c2 8j1d b-tv64;q4impz sdq.y; tinuously for 1 year at a sd jwy;q1zi18q6.tjzhv2 4-j bd 5c x;ydmp4m 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 through a lightbulb jy8y epx -epj5s)7e0zresults in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbuyey 7p s)-5xej8e p0jzlb?

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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 yt hiy+9)y4(u6yabf ;cs ic4u a family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 2bs yc yhy ia u+u4(tcy4i6);9f0 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 resistors to for vz8v(jgh +jubd1b;a-kdn /4fm a simple circuit as1avn;8(+ g hvubz kfj/bdd4j- shown 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 connecbi 9(1t+q lkfvzb.- rcted to four resistors to form a simple circuit as shown to the -qb tv+ 1kilfc (9.brzright.
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 thrvxv.1d*m; uqh:jgn .a ee resistors are connected as shown. With the switch open as shown ij.uh.av dv1q:mn*x;g n 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 ammeter2 +tn ybp (1k4f4uvadu, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.avu(pkyb f1t44n +2u d0 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 three resistors;i2c zov1t8vi -wfgx7 are connected as sh i7;x zf w-vv2goi18ctown. 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 s+rbu5k0zfm:id -t,qg hown to the right, what is the equivalent resistance? Assume that+bd0g qkit :zf5m-, ur 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 resistance of the circuit shown to the *g+vt1m 0wnipq3)mgbvl;z0dp gq1 +x right with resi+td1i0l1mb +);qw03v*pnpgx zgqgvm stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 conneyx2vsj-0rf/ hr /b(hfcted in a combination series and parah/rrbxh(f fjv2-sy/0 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 connected in a combinn5o5 wthzxgim+e ) *w:r3w)b hation series and parallel circ3 *5w tw z)rw5im heh+bg:n)oxuit 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 bu1p rpf9h: qs2vlv o54rlbs are identical. Which bulb will be the brighte4v 2ols q:pvpf9rrh5 1st?


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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 a9v v61-/x3u /x jg yfxili*ffsmmeter, a switch and three resistors are connected as shown. With the switch open as shown i/fvgj/if1u39x y*6vi xlf -s xn 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 resist .21 uc, wexvpouc*ibyj- s(k4ors are connected as shown. With the switchco*s-pv4ybx2, uwkj iu1 c (e. 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 idealmv77he7 bb l0e ammeter, a switch and three resistors are connected as shown. With the switch open as sbhe7b m7e 07vlhown 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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