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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 mett8 d2 si2nifk4 5nld1ral 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 8n i142ltfdn2drs5 ik 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.kur, hr.)b ud resistors are connected in parallel, the_________each resistor is bk,rd .u.u)hr 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 of a lightbulb cgj9 ud9.o fac6auses the filament to become white hot, while the larger wires connected to the lightbulb remain much coolcdjag 969fou .er. 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 liggd+cpmsd 88zd1oc85t hts are being replaced with LEDs. LED is the ac gc dc5+18pod88dm ztsronym for which 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 kpsf fi) o.p m,2.-bijgraphite resistor has length L and cross-sectional area A. It is to be placed into a circuis2)ifo ji-f. ,kp.pbmt, 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 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 thha jd8exg5mo8+55fy v e same material. Wire II has twice the diameter and twice the length of I. Igxa 5hv8o5y de+jfm58f 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 o1d nz9wiv(e k * s+(-ov7eev zbk59 w+lm1srwqf the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have ( evv1 e kl k1 wiwve*q9so9bmn(zw5-7 ++zsrda 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 r. This piecejrvikfirws,)eb 579uvh5fg q,)l)n 7 of material is then drawn so that it is a cylinder with new lengt)rii lukh,5v7w ),fr g)n9b5vs7efjqh 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 make a brisp g) 8ac+zz pr-tkj-z;9q51ykxs9by ghter light bulb. He decides to modify the filament. How should the filameazr19 -kz 9z5;8 tjyp)+ cgxsk-pybs qnt 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 same mate:+a o:cgre ;72bj fwf: xx0g qqej)w+rrial. The length and radius of each resiser awrx fc:2: qo+7e);wg:fxgb+qj0 j tor 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 connec0ziyc2 s h2s-sted 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 rei ss -chy2s2z0sistor. 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 circui-p5biw dduse,j ld76:h l(lk3t diagram has internal resistance 10.0 kW and the ammeter has internal resistapj7ubl5:k(6l lwsddi3, hde -nce 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 y zd+;htx,a 2gt g79mwright. The three bulbs 1, 2, and 3 - represented as resistors in the diagramzw9;mdtxt g, y+27gah
- 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 electric+6rqvvz eet x 76y:cmdp 4aa27al circuit at the right. If the current in all three resistors is equal, which of theex7v2 46+d7: a6yqt par vzmce 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 repky6y qz adt ob(xe3*+l dm*n5.lme*(wresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or * e3bzxy ldo (kqwatm6 (*ney*+ l5dm.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 simplbuk:l gi-ng8gbk 21 *ke circuit shown where resis 2kggl:b-1 u*ingb k8ktors 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 uxtbt(o0p he:rca1- ; in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If buhcrue1a; txpb:t -0(o lbs 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 will pa;qdrorg l+p2/ss through the identified resistor in 5 seconds once rr;odqglp2+ / 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 following simple ciodowo) 2ss 4:5fn 6disrcuit have the same resistance, which would dissipate the great wo2on5:ss 4o)6siddf est 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 diagram, vvft) mf em g7k3 :1:j6mt6wddgx)zv9the current through the 6.0 Ω resistor )gkg9d1vv j:v) e m7t6xz : t3fmm6wfdis 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 connected in series to a battery. Su fsfp/dmuqq ( lz7v:-/ppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 Wqsf fpzmul7q ( -v/d/: 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 in paralltqiohv oh9i g/g9o:): el to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R:9vhgg o9ht) :oi/ oqi3?

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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. What is the maximum j5: d. c+j0ybol7eizm value of the current under these c7de0jz 5ly+b:im j oc.onditions?

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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 ;,qe snu c kjxo+udx1184xr8o 60 watt lightbulb designed to operate at 120 u81ds4ujx;r + ,co x8xoe 1qknvolts?

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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 dissipati 3ui7x v9,anvnng 36 watts of power?i,nvu9 nv7a3 x

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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 maryzz x;5(7ym s,p: bnaku/) fggked "120 volt, 600 watt.” In normal useyz7:s; u5 f zkb,/mngp)agy (x, 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 fot,mjqnrzlb55p4 93 qa8c q x:lllowing resistances could NOT be produced by a circuit containing only three identica alzc5398qt m:p4 qb,qrljnx5 l 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 the bcr+1um;i sfda9cl1i k2 ;i*ree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three redic; fs 1mcl*ai+ k2iu;91rbesistors?

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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 fz+gtau3;xm,)fy788vsb sofc , oj )q connected together in different configurationoj fotqcf,7 a)8g+s,bz; x 3u8y)fsv ms. If all three 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 ;uopcq 5d: a8bresistor is connected 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 using the same battery? Assume the internal resistance of the battery is zb5co 8au;pdq :ero.

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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 connectdwlttvczg5 z(.q:r md3 n03+9r k2er tb(xg8oed in parallel, the ed 8k3tnrtb 5oezc2r g 9x3wzltmv(( 0g.+ :qdrquivalent 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 thay-yimi 3 9ivk8t it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of wateikv3i9i 8my -yr 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 obuf( gtxgqmt*f)0 ( p2fos ;,whm resistor that is dissipating 36 watts of powefo2pfq)utf (mbg ;,t(wxs0*gr?

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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 current when connected to 12hwcbm9h/s c*/67 it8b w08*i,fooigl ,lyeoh 0 volts. If oeg0th*wwo8il/h bf i/ s i7c,*ho mb6lc89,ythe 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 cctop ho qag0::1l0,fr ost to keep a 100W lightbulb lit continuously for 1 year at a rate offtoqh10 or :gp a0,:cl $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 i31ufc/ fl9gu 9azu;kjugx:7uc6(z vwn a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistancek fu7jgac u;z : 9wl6uu (fv31zcx/9gu 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 watt m/ v5*gjscet1 wcc,iw8x7r- ;zkiu l v;kh1/zs 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 thu skx;c l/i zm71i/w8, 1w zvjcct gk5;hv-r*ee 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 js+e,i vkrz+u n8/5a s ax)i/fwczx30uwa3f. circuit anuc kw z+3zifws,ea+r )v ./3a5iuaxx8j0f s /s 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 batt885d ok1egcqapml u(/ery is connected to four resistors to form a simple circuit acp /gk5 deuoa18l(qm8s 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 ammeter, a switch and 4wl/q rd9n(u:gb o3erug 5au; three resistors are connected as shown. With the switch open as s dor4/;5b u9(lgrn uueg:a3w qhown 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 ambf c1rr)k98f-cc) jaqmeter, a switch and three resistors are connected as shown. With the swit-1qac98rj fb f k)c)crch 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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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, aju/+poln nk :zdbx. -d7h0n q+ switch and three resistors are connected adl+-h nj 0/x7uokn pbd+zq: .ns 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 the right, what is the equivahf *uv-,4l, wy cp/ggzlent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resiswg,4lyu-/h,p g f*zvctors 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 remm*3fc+ru 3(umq8u rb sistance of the circuit shown to the right with resistan3f (mr*umcq+8ubru m3 ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 inmy-)+.b mo;o kc ;hrg e3(xybw a combination series and parallel em3 .r ;c)(bxy;g+w-omhy kob 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 u-b* 8k4 aymxit/rn8pfive identical resistors connected in a combination series and parallel circuit toi8xbr un 4m/y*8kp at- 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 bulbsk.e4 .bjrwozuj34 6tur/u20kyr *ch f are identical. Which bulb will be the brightest? wruk/ych3euozjf k4t6.02 4.b r*jur


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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 re*f 2 bst6cb*;t v6sbn6ntll/f sistors are connected as shown. With ths*vn 6 t6sb 6lcn 2;bb/ftlft*e 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,mm 0r3dh x3 igo,0v7 (kxnhe.e a switch and three resistors are connected as shown. Withd3mx3h0.ix hnk(0oe e7,rgv m 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 are co x2i9(c qr: 0qnhul)flnnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. )x2hi llcr90: nqfqu(
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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