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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 resis/+j mxzknj33 71 yzfcbtor connected to the battercz j +1/373n zxybfmkjy. 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 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 resiscs w -4cmxv.t7tors are connected in parallel, the_________each resistor is the sams4m wccx7.tv-e.

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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 thqtu 6.1 vo.3obtj2ftoe thin filament wire of a lightbulb causes the filament to becomv3u q.bt2ot1 oo6f. jte white hot, while the larger wires connected to the 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 light1,rb3 l4z +nx)dds dmis are being replaced with LEDs. LED is the acronym for which one of the following chnxdl,3zbd +)d1rm is4oices?

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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 ans5 joz)tx v ib9)o,w/hd 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 nehzo)b)o 5vjtx,9w s i/w 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 2 j4:wugtip*rzt8pwmjl5 3a0twice the diameter and twice the length of I. If I ha2tlgpa0j:*wm3pju wtzr5i 8 4s 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 diameter79 4m,a- bbsn;wh gnpk and half the length of wire X. If wire X has g;s,bh kw79 p-amnn4ba 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 lhtcn+6;6z2b)1 ijwda ,dialbm ;un 3tyst 0)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 res; b snjyn 1tuz )d;6,26id3mil+clw h)abta0tistance 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 wantsoq08 yh6km-i8:m )hogdoqt l 3 to make a brighter light bulb. He decides to modify the filament. How should the filament of 8tkl8m- yg)h:qoi6d0q hmo 3oa 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 mate s1d74vhi8 ttcrial. The length and radius of each redh748 st tvic1sistor 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, eaob92iwyb;3i 67ta tlcxh w -v6ch of resistance R, are connected to a battery in the following way: “Two62 h7lwo3a;9tc w b6y itvxbi- 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 cirlbx3*fw / h;exax;w-tcuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most neal;;/befx3t xwxh aw-*rly:


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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 to0l+hs sc65s5;v;k ijxgh -kwhree bulbs 1, 2, and 3 - represented;vw0hsckj5sx 5lk - gho+;6s i 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 electriclljmr ltrtgi: uue .50a 6)a./al circuit at the right. If the current in all three resistors is equal, which of the following stal 5t0:ug.6j/riam l.etu la) rtements 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 auugopfj6m9h i ,o-5 y*iug31zm,hk7b simple electric circuit composed of 5 identical light bulbs and 2 fli6, zo9og31mu-ubpgi 5j* k,u7yhhm fashlight 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 mlb88)fv47yxuv /wr3 vhe9 keqnd,r)true concerning the simple circuit shown where resistors R1, R2 and r)e8)n lrx ed4qm wuhf,/v7 839ykbv vR3 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. Bulb X i6ztgdasx(0s n7hjz/- vm+6vv s brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY arsva/v j+ x-dtv 6 hn6g07mzz(se 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 wil r7:c,yiid/ sdl pass through the identified resistor in 5 seconds once the circuit was closec /d7,rdsi:iy d?


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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 rec4sgx) +z+7y8k mxkmj sistors in the following simple circuit have the same resistance, which wo7 c xk)mj4k zm8+sgy+xuld 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+ms9j7teiehtbf un/kt 1,08f diagram, the current through the 6.0 Ω resistor is 1.0 A. What u9h bf ,ts te/nfm70kj it81e+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 series to a bafcn grs-lv2.gx k6( 1kttery. Suppose R1 carries a current of 2.0 A, .6 kn lf(vrs2kx1-g gcR2 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 resistdi f .ebo(dv9alha123ors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V ed l93dohfv(a 1ia.2bacross 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 rated4y ,i-9brr 9hdrxjf,i 1200 watts and 120 volts. What is the maximum value of the current under these con9idirb,,jhrxry - 9f4 ditions?

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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 wattn,l*lk+8d,ew xhuedh.m, ne2 lightbulb designed to operate at 120 volu e2nh. xl w+ne,d,m*lhd ,k8ets?

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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 dissipating /js8ac8hrp.d m1wp,ic.t-nm+b, b nx36 watts of po,ps.jmtc.a,bw+x 1phnd/ m- c8bn8 riwer?

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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 cy, qhs o9:)xwy j5eq09e;x ,tdlm-udzlothes is marked "120 volt, 600 watt.” In normal use, the currsd9q y qez yd e5,,t)xmx09h;:ouljw-ent 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 produced by a circuit5 ,b a7djstmz+b ts0px1lee.9 con7bx 0.ljsep9+5 mdz ,1eatbtstaining only 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 equ/v m-r6wti jbnt7( kw+ivalent resistances CANNOT be produced using all t 6k vt7wwbnm+j(t/i-rhree 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 2b1 o5pmh)imj different configurations. If all three re) 5oijmp 1hb2msistors 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 da.r;ly/9 gnmpower P is dissipated in the circuit. How much total power isl/dmrag.yn ;9 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, havingvy6gbeq 4m j u4x(*x:l resistance R1 and R2, are connected in parallel, the equivalent resisgbvj *44xeu6m l:yqx (tance 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 t7p2j /-q5u(lvshl g sthat it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to v(g5h s7t-l/u lpqs2j 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 d04h,2gfk q i5hk 9p*xvxj rx8flows through a 4 ohm resistor that is dissipating 36 watts pvgq950*r kxxfi 48jh xh,d2kof 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 1c2sow8u(nu-9d je+m f3 amperes of current when connected to 120 volts. If the price of eleeo28-wjdfu(+ c 9msunctricity 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 wou:j* t5jfq2l8pbom:0kjj;uft ld it cost to keep a 100W lightbulb lit continuously for 1 year at a rate j0:5tjf2l k:j*m ;otj up8fqbof $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 resultr: zbqy/iuu awq(+++.op0is o s in a power of 24.0 W associated with the bu0+ u/zp + :(o oqybasqiuwir+.lb. Which one of the following choices best 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 six owns a computer rated h1q/cy(q td2nat 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse,q/t1yq( dh2 nc 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 form a simpt9lowaf(;6t/pwb k w/ le circuit as shown to thek b t( paw6;lwf9ow/t/ 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 ftan6p;03gr* e+zxyda orm a simple circuit as shown to the ri;at6d+y0 *3aze xn pgrght.
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 switchy/ steds 6;h0az)-m0d 6enqp z and three resistors are connected as shown. Wde n;00d-/ph6)sea 6szzm qytith 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 ideal ammeter, a swit1wpdw *f0e-dr ch and three resistors are connected as shown. With the switch open as shown in the d-0*1pwwderfdiagram 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 con;k+7cl+kh*d 2wuyw g anected as shown. With the switch open as show;+wd kg7h ca+kl*u 2ywn 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 equivalento *lugq -e6p0z resistance? Assume that all wires are ideal, the battery has no internal resistance, and al-6 oz*qpge0ull 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 thes/: nqt e19utd right with resi/t9n d1 suq:testances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 re1 dhbl694n.eyaun 7f nsistors connected in a combination series and parallel circuit to a voltage sou.l 4yh7u a1bn6fed nn9rce.
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 connru bw ;:dar3:n1 ek9mbination series and :ru 9 w3bnk1 na;dren:parallel 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, all7w;sg zls9; b*;m/iv0 edkcef of the bulbs are identical. Which bulb will be/s m7si;gd;k0bevzle* f9c;w 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 three resistorskzj zv8pr2p ,f6bo7 5r are connected as shown. W p7zr6k roz2,85vfjbpith 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 and three resissv50p* h5kdj 19npm1ow l eef (j;pf5xtors are connected as shown. With the switch open as shown in the diagram the ammet5 ed 190;x 5fm5 ejkp1*fnspowjph(lver 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 oj aoi55u,ls m2p.ed5p)4lcv connected as shown. With the switch open as shown in the diagram the ammeter readsli2m5vluo) 5pa4ods5 cp. ,je 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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  • 姓名:游客(未登录)
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    总分:50分 及格:30分 时间:不限时
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