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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 resist mtkoj:hj:l:7tnpn1vd (; x;dor connected to the battery. Which one of the followindn::tvm;d t (knj1:l jxp;h7 og 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 resistors a(q ukb, wncnn-bes ++5f n-w3vm+p ff7re connected in parallel, the_________each resistor is thknn qff- 3,pb swv+7c+we(b -+n5fmune 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 of a lighs+vsrdqc h8t21( (bph:huv *ntbulb causes the filament to become white hot, while the larger wires connectedt1p c2h h+svr: d*(suh(bnvq8 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 lights are:8vtg ifxa43 l being replaced with LEDs. LED is the acronym for which o8:f3taxl 4giv ne 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 imd2a(p qi.z* ;caq.k*u.a qband 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 resistivity to the old resistivity of the cyli ** kbqad2u q.; a.qmpizc(.aindrical 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 madlg,:39* ka qopblr fv4e of the same material. Wire II has twice the diameter and twice the lengthq,glra4v *:lbp fk3o9 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 materiaj0b9 n0b,gl 8t/sp8gz +h: ,jggac pzil but has twice the diameter and half the length of wire X. If wire/gbt0 gl i09pjas:j8zbpcg,8nz,+ gh 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*q+4yg,5uzdxd gq2 q d r. This piece of material is then drawn so that it isqqzd gy+*2,u dgq5xd4 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 d+qxro4y+w3fu-ln8 p94v *n bw3ip u8vos st.wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make t.8tluuo9p-+qvx4n3 dvso4 3i fsry+ w pbn8w*he 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 obq qz(nc4 e6j,f the same material. The length and radius of eachne4(jq c q,zb6 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 resa3smam jtj5hm 3y.1w )kvklcrd6*//jistance R, are connected to a battery in the following way: “Two resistors are connectek)/ vt/hak 5l 1j6ry3a*smm3 mjdcj w.d 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 acco .zi y v34(ql e2./dmqdsl(sy3d dpkh/mpanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading ishq3sz(4ks/ ld ipe yymdd.d. 3q2/(vl 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 circuitawrwfhf *(yt ;7x1 7.e:ikvfc shown to the right. The three bulbs 1, 2, and 3 - represented as recwt7yfe(f 1wirk;f v:7x a.*hsistors 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 c0a ne/dy m7x*psq kd94ircuit at the right. If the current in all three resistors is equal, which of the following statem/ ysd*ma97 xq0kpnd4eents 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 composed of 5lid-p3 /dfu okl3m j:(6 jn6ze identical ligh/:ef3jd(z 3p6uo-il mjdkl 6nt 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 sim e-l.3 pcn3hojbxhuy;nr8- i4ple circuit shown where resistors R1, R2 and R3 are havehcyr4xb-e-.oj 38p ;3hluin n 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 c:actzo)zb +d-d8 j+p aonnected in series to a battery. Bulb X is brighter than bul-8:a) dc+dpz+jt oaz bb 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 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 w9ubbyg mm-auj)e 609rill pass through the identified resistor in 5 r) u6u jbgym9 0mab9-eseconds 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 resn+ 5(lmy+dp/+6 vqwez toajl 6istors in the following simple circuit have the same resistance, whichaj(d 6o v wl++l 6+yzm/qentp5 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 accompanying c/e1cbhu3 a2cqob16 )jnp ufx 7ircuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the f2enu7phb) 1qu1 ab/6 ccoj3x 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 battery. j+abc29l(6ps k:n:lyf (qwt a1 b txx5Suppose R1 carries a current9 (jtx lw6qka2b+ x:flpac 5(1ybnt :s 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 resistors R1, R2 andR3 are connected iniuz5 ;7xkpod5 parallel to a battery. Suppose R1 has 2V acr75ok5 pi;udxz oss 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 v6e7947qy a y heb;( o:pg*dy)iauzvevolts. What is the maximum value of the current under these con 6e9vyze yaehv4g;a*u p7y(7o) i:qbd 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 hu w),-gxy 7coa 60 watt lightbulb designed to operate at 120 volth-7w ug y)oxc,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 rvom nwe ev4e jq(a,.1s+ ykpq5(0 l9rlesistor that is dissipating 36 watts of pow(y0p s1nl( eq .jr9vqvek, w+ml45o eaer?

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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 press0kdgf:eh0lo) clothes is marked "120 volt, 600 watt.” In norma ldh 0fgek):0ol 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 followinz(bd eigk h6a,yh+f39g resistances could NOT be produced by a circuit containing onlhg9b(dkh 6 3iey,az+fy 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. Whg6 n)ppj eihb:l,6 a(hich of the following equivalent resistances CANNOT be produced usi:aphig hj)b(l66np,e ng 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 differen t(srtjfcw7gbt68z)-t values can be connected together in different configurations. If all three resistors are used in z -6crjtt)(g st bf8w7a 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 connecte*z:za hzkdh zrw2+oe(,9tfg3d to 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 usifz:w*rz 9zoe,dh zt +(k h32agng 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, he1cv2)oz 2dfw3a,ec8 42(h-plkhml6 k p crqbaving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the2 aphhqd3k2c6rb-4ecfzlp ( k1)ce82w ovl, m 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 regvrsqxj j2aoy+,f6 67sistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to war vjxf26jq6g ,soa 7+rym 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 flo4 gz/5e zea-iyws through a 4 ohm resistor that is dissipating 36 watts of power yag- /4ez5ezi?

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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 c41q()b ao:z gy 6ctkhwh 76tbnurrent when connected to 120 volts. If the price of elob6:qwkg1tnhht b7yz(a6) 4cectricity 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 contfm)yng*x2+2 x ub3 cnfinuously for 1 ybgx)mfu+2xn *3cf ny 2ear 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 through a lightbulbxqvhnc q/7b95 results in a power of 24.0 hcx nq9/7v5qbW associated with the bulb. 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 at 500 watts in a 12rrg1hbo ; 5h5u0 V circuit. If all computeru; g5h 5b1orrhs 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 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 forgtp8 dytscya4s 9 wl3)k4ts6hpc)t g.w1 4:pvm a simple circuit as shown to th8c4ch )t tgdt 4sglw3pspw 64y:py. t19v)ksae 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 for9 n tf8pu)n0mqm a simple circuit )9tp0uf8 nnqmas 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 ammeteyx kxa-v i87c3r, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the iyvx- 8ckxa 73ammeter 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 ideabmf*hhq2u,7:tp u ec0 l ammeter, a switch and three resistors are connected as shown. With the switch open as show 2c: p fb,qeum*7huh0tn 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, eh-*fghw j woef o4-bk8,.xj1 a switch and three resistors are connected as hkj81o e,j-fww*- 4ebf hgx.oshown. 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 the right, what is the ek41pn w p(xby1*q3 rlyquivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance R. ky4 3w 1*rx1n lypqbp(


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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.07: The equivalent8y.tz6d huh-m resistance of the circuit shown to the right with resistance.dmt hu6h-z8ys $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in a combjc;u)z m**awj ination se m ;w)au**zjcjries and parallel 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 r9179lbhy 3yhyeapa 9l esistors connected in a combination series and parallel circuit tpyy3 bye ha1l9lh997ao 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 buldrxqhql4 /1 gt o-95aybs are identical. Which bulb will be theg-5 1/qdrh 9qx4ly ota 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 swij1,ie*s+b vde tch and three resistors are connected as shown. ej+,s div*be1 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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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,kw(l2osg/ bn 5 a switch and three resistors are connsnl( ogkb5/ 2wected as 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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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 rd( ivi .a5mva+/o1posesistors are connected as shown. With the switch i.5/+vdpis (aaovmo1 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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