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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 el37gkwkfj* tv;ectric current exists in 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 in wfvg3j;t*k7k terior 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 resis4r7i-ii oaah 3tors are connected in parallel, the_________each resistor is thehr iia3 oa4-i7 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 w86lb(b3*x( mzybrei fire of a lightbulb causes the filament t8fi bby( mel3*rzx(b 6o become 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 lights are being replaced with L-e: ;ikgetzi3EDs. LED is the acrot e kgi-:3;ezinym 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 graphite resistor has length L and cross-s-51ov k-u jxaw .ppup1ectional area A. It is to be placed into a po-jwp11. u k-px5 vuacircuit, 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 the same material. Wir8pp,1npd1 r+t rb w1tn3n*cdce II has twice the dipb d*cn1rttd 3,8r wn np1p+c1ameter and twice the 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 ma4*ir63 m gknek 3ttv4bjqj,kqr::0v kterial 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 a resqt :i*3etq0v 4 g :k 6nb3k4,mjrvkrjkistance 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 reqcx vgt bx n9e,c/lw3eu(;*6gsistor has length L and radius r. This piece of material is then drawn so that it is aqg(l; xve*n3g9 6 e/,wxcubct 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 wants to make a brighter light bulb. He d,rh ,ez ( wc5fes9*a5gh mty/mecides to modify the filament. How should the filament of a lightbulb (,*,ryawsh hz/ 5g t5mec9mefbe 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 +sq6/uksq *r4 j loty0material. The length and radius of each 0/r6jqokyl4u+*qts s 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, eafo96ax5snk5 9vjzs t3 g56uxtch of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. Thif3tkj5xa 6 5 t 5z6osus9nvg9xs 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 circuit diagram has inteqrjoq 7,lv)g8 rnal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is)7olj qrq ,8gv 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 dj(k c o(ki1 hi7a7k)t+.ky dscircuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistka7 ktd(.dsh( )+j kki7oiyc1ors 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 abv+f 8 m10f*klek-eyelectrical circuit at the right. If the current in all three resistors is equal, which of the following statb l-1fekem8a0fky v+ *ements 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 5 ilf:gcw7:b , uudentical light bulbs and 2 flashuwg b,u:lc7f:light 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 simp .i-dqjoaxiz918)i 9xi;pfqb le circuit shown where resistors R1, R2d9zbx ii-oqax;)fip1 9. 8iqj 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 an7f7a,jzxs)sr ;gd+ parvab g j. 8),xxdY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume a7 arxza;x) 7 a,bp.fg+s,v rxg jj)8dsll 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 will pass through the identifiedn6. uiqzp8snugb4 .d; resistor in 5 secozni 4u.86. gnpqsbu;d nds 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 resistors in the following simple circuit have the sonyc+l+x7 9se4u3a:w cc tz htpd4,r4ame resistance, which would dissipate the greatest power+udltc,o 9:h4p3r c atxzys 4+c 7w4ne?


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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, the cur,;tmysc93 hqf rent through the 6.0 Ω resistor is 1.0 ,tcqyf 9; 3mshA. 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 connec,i duq(/x s4:po vw.xlted in series to a battery. Suppose R1 carrio,lup dw:iqx./x 4s v(es 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 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 connec-8yip3p .vf trted in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Wha y p3if8.tv-prt 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. What x;roz 1*ry 8d*pn-plj is the maximum value of the current undez -d j* r*nl;ox1ppr8yr 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 resis-t; e4y3stk,cy.*;iusmj u 4jovnjh +tance of a 60 watt lightbulb designed to operate at 120 volts;;+u t cey3noj js,v i-uhsk44mj*t y.?

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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 id gzd*vjvh 498s dissipating 36 watts v*dj gd4 v89zhof 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 useduv2 4 3siser9pk(ypki0m 1q/d to press clothes is marked "120 volt, 600 watt.” In normal use, the current in it isep/yi9us 2 i1r(vpq mkkd034s

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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 h5iq ei2pk 0p0a circuit containing only three ident2i0qpi50 epkhical 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. Whic *;/vpmwr)1fqzb mqou wvkj6v,mj l62nb ;7z 2h of the following equivalent resistances CANNOT be pro )lb62v jmw6wkop *,fvq v;/qmj2n7um b zr;1zduced 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 b.f: +alri:c9.n wbi vr+dlx8d e connected together in different configurations. If alcdw. n +lvb9xf:iid :.r+r8 lal 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 resi n/p 7-sf*takxstor 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 ca -s7pkntfx /*onnected 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, j a) 7wubvgz02( ob3sflmjjli s.,7s6are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following stateme,wgjo2 7s.s6s)laifz0bj(3mj vlu b 7nts 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 tha1a5bian k.7 ott it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warmok n.5bt 1iaa7 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 thrl8; wmx mh6pa+ough a 4 ohm resistor that is dissipating 36 wattha ;+68wlmx mps 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 draws 13 amperes of current when coyok;z9 st5l 6vuu.h)annected to 120 volts. If the price y ;vzuha6lo t5)k us.9of 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 lightbup -xqfmwf5bzl j*7; )klb lit continuously for 1 year at a raj 7l5wxzmp- ; bk*qff)te 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 oy ;kd(ez3 st*q; :1q tkw yczjgi:c)n4f 4.00 A through a lightbulb results in a power of 24.0 W assj; y*cke ci:n4zqt)1 kz:ys;w q(gt3dociated 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 i36hdd r1 b xf;y(d5gmsn a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere f(hd1xf;5s6 mbryd 3d guse, 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 fov67b1xwmv ua mj4p rm(0pl, r9ur resistors to form a simple circuit pmu6mv7 b 0ra m 14vlpr9xj,(was 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 connected to four resis 5iqe jpbyji(0o 9vkgjm:5+b b01- njftors to form a simple circuit as shown to the -b jfq yj+kijm:g j09eoiv5 1p(bn50b 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 aegw(rw38 u: hxmmeter, a switch and three resistors are connected as shor ew8 g:w(hux3wn. 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an idealw0z.weth+ u9zc8oz w0 swl)5t ammeter, a switch and three resistors are connected as shown. With the switch opecsz)50w thw.0u9 weo+wzlt z8n 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 ammekb3 sn9 a0gwd40:ekw hter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amm k: b0e4hn9wk0dswa 3geter 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 equivalent h wml5(6i8ki ,u:;dhgvuh 6ciresistance? Assume that all wires are ideal, the battery has no mli (:hv 56k; h,86hcuidguiw 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 t ,+ef;lh 94.ljiacu rrue nlpb4(xz8) he circuit shown to the right with resistancesl8f(upeeul+9r i)c.bnl; ,x h4 4jazr $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belowr1ouc g92 wq,n shows five identical resistors connected in a combination series and parallel circuit to a voltage cgo,nwq u21r9source.
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 combiy8 elck+.ugn gk/:jl9nation series andku n9l8g/ykelj g:.+c 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, all of the bulbs are identical. Whicqa0 ;sqvl p+ln71mu bf2 h2usa ;w4v)kh bulb will be the brigh v ha1l pqwnukmfq sul42;0v;)+7asb2test?


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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 resist:q;+y lm fcchbgh he(r)-si**ors are connected as shown. With the switch)bghy ih(mlcf *q :e;s-h+ cr* 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 thres4yi5e35zg:t idn, b ye resistors are conneczyys :5 ,3e4itgind b5ted 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 batt( l3 gqfiy2q+4(cmm mhery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammlm2+ 4yhc( m3igqf(q meter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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