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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 resistor4o/qd/ )wcyhbr;rcz( connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor an r);q(cdowyz/4/rcb hd 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 connecxbn.1:dv f*i ck)h+v zted in parallel, the_________each resis.v+df n)* ki1z:hx cbvtor 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 the thin filament wire tup h thfae,:f22 qtm62id1/bof a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbt2epi2hf1da6h 2/ t ,qutbf: mulb 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. LED is the ac5hgb-l7 hi *foyp)f 0cronym for which one of the followh )p5gl*b0of-hfi7 ycing 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 lengjokx h53qj/dtuut; ;uo py3jf37(5 e eth L and 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 resistutjoo3e(j;/ 3yqdkuh pj ;5ue5 t7fx3 ivity 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 twice the 0r7li5k)/r dz -9hjw:avn a ordiameter and twice t5ajia/9o- ) wrl:dnkh 0zr7 vrhe 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 same material but has twice the diameag-1vtdb q 5n9ter and half the le 1dv5q9nb-g tangth of wire X. 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 rg8 ht g:)hws knhegsqg4d2, )e t38;zm. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the reg zk sgt)e:d nm3 tsw8;hq 82hehgg4,)sistance 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. He decidebp *vvr7b) 09r,ju-ljyb j-lps to modify thevpy*pjl ,l9rbb7jur - b-j)0 v 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 sar)0y cpp gr+/rjy38uy me material. The length and radiu0u8p gjpyryry+3/)cr s of 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*rb klz:02suk of resistance R, are 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. Thibr kkl2z0u *s:s 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 diagram has internal res7pls6kqz 83z..blq,ga inb,e istance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltm8gs 7pqi3zlqe6b,b,.kl zna.eter 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, rkykx 518d7hy and 3 - ryy85d kr7 kx1hepresented 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 electri3*( 2i/ofv6aer5q qt;e i. xzcdgytm1cal circuit at the right. If the current in all three resistors is equal, ;vaq oy (iz1t/ef.2 t6drgcq x3mei5* 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 circuit nt0 vv ,-*dr hevzv8z-composed of 5 identical light bulbs and 2 flashligh,zr- *vzth8v vev0 nd-t 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 statemek*epm xec:(q 5nts is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal re*kcm (:q xpee5sistances?


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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 is bri90o0e)lzlbm+ wz i97gai8ip0k1kyl hghter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY 0ia gik89 kh0 i0 z9)oz1wllpmly+be7are 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 will pass through the izout; ++ djwd kb+j79fdentified resistor in 5 seconds once the circuit d jo7w; +kd jt+ubf9+z 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 t0ukm)o 6brt) +c(ezg+iagdl 0he resistors in the following simple circuit have the same resistance, which would dissipate the greatest power0kug mel+i6ra+))tc 0( gbo zd?


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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 accompan1nhvt0f d .n)uying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. Whdvnt nuh.0) 1fat 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 connected in seriesoch9im5s in*f0mn : shj5i2)a 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 iij hsm5h*n0io a2m)c9:fsi5 ns 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 re wrj. 3yv iyty+0qkl 1u2tmwx xfg(*1-sistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipat1kv x f3tyw0-g.t(x1y2quj*lmyr+iw es 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. g7n(n qw.qcy/ What is the maximum value of the currn nqyc. wq(/7gent 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 desipff3lzeg8o0y ;2br6hgned to operate at 120 volt2 f;r gh3lfzeob8y60 ps?

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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 t rd,is63;jwr elpw *s*hrough a 4 ohm resistor that is dissipating 36 wat r*3lwp *ws;r6edi,jsts 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 l8oto9gy3s 5 lwd- 4 w2.zitblto press clothes is marked "120 volt, 600 watt.” In normal use, they3z-. w4dwg9lti o tbol5l28s 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 follo3 4;d .jyaaleh7/wyt iwing resistances could NOT be produced by a circuit containing only three identical 6 ewh/4 3.ta;7ajilyydΩ 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. . uor *e c:-5an0-zwpxojd)teWhich of the following equivalent resistances CANNOT be pw-txnpod-0jea*o)cez5 u . r: roduced 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 differ pkx-+sdsf64(7qpupc ent configurations. If all three resqxkp7dpp4- fc+s6 ( usistors 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 aw;ya .-fr ;z gni6(ye a(f0oyu battery, a total power P is dissipated in the circuit. ny( . eyg aaf;oz06ir-y;fw (uHow 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 R2, are conne9/cwjp4 ty82ede kej c--rd q0cted in parallel, the equivalent c tjy49qd-pecjr/e0 -8wd k2eresistance 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 resist 3pz, jlyig. qz28msw0ance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would zgw8pq,sz2lj i3ym. 0 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 aa;5r, x.ykxv resistor that is dissipating 36 watts of powa xxrv5 y;,.kaer?

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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 dra51yngm,jjtmj1/ xj 5qny g :z;ws 13 amperes of current when connected to 120 volts. If th 5gjj;tjn/1: mxzng15yq ,jmye 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 light8rbaauc.x fy scnl978 bs93, tbulb lit continuously for 1 year at a rat98cxta9ru lasb 78cs. n,b3 yfe 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 powerstxu gm644al+,p m4hf of 24.0 W associated with the bulb. Which one of the following choices best represents the resisla+s6u,pg h444t xmfm tance 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 c4q,m)me-7)dbvjom35uq e6m 0 ngzb oc7yih 0computer 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 max703voummz7ocbd iy 5mgm0-e4h) 6qq,c n) ebjimum 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 form a simple circui7xpxvl6jbd8b q,,v.ml r0eyxrsw16daic 4. 6 t as shown to the d,b6rl4ei r csx68 7vx, vyqampwljbx1..6d0 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 resisturaa7pzl9 jew *c..o:ors to form a simple circuit as shoe*w9.:uocr a7. jzalpwn 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 ammeter, w sl qbvjggeo,7)7*2v a switch and three resistors are connected as shown. With the switch open as shown in glbq )w*g27ejv,v7 o sthe 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(xkw mk 6 0re/,. 5wrgjn7pwuh and three resistors are connected as shown. With the switch o5km0 u6kjgn(w,rh rw x/wp .7epen 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 and three resistors are cfuq31)ahgg( f lcj(a )qac91vonnecteflfv()c 9aj q3u) ahg(1q1ac gd 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 k-rd*krm7z z 1the right, what is the equivalent resistance? Assume tha r*rzmdk7z -k1t 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 equivalentvu 0xda9/ 02*+takel-b xt zpbcj4i(q resistance of the circuit shown to the right with resx/lz+ebk(t*t940d2 bqjp uai 0ax - vcistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 sho mxwl.j ss9 653v)st+qrl + y*wtlmv-bws five identical resistors connected in a combination series and parallel circuit to a vo vslt)5 q9tms+ll6y +*-j. mw3wsrvxbltage 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 identical8, vnv)n-rftl7tsa* 6 idpx7r4ui hb1 resistors connected in a combination series and n84ax16dhp t)vui7rs n*-tvrlb ,f7iparallel 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 -2ujrd r+ p8n4ibpb8p the bulbs are identical. Which bulb wijr8-ri 48 nu ppbbp2d+ll 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 battylpc9j*7 +2sofzxagq ,fy0 y4 ery, an ideal ammeter, a switch and three resistors are connected as shown. Wiqza*0l ,f2o7x 9sypygc y+f4j th 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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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 b0qcs 3;qst34e e5zlhand three resistors are connected as sho lqsh 0betzes34c ;3q5wn. 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 resistors v -cgz6q +u8m8uvh3uc are connected as shown. With the switch open 8u 6g hzuc3mq- vvc+u8as 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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