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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 exisxf/4o)i9c+b z01h nxkv t0shp ts 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 fie 4ptch/0f91 kni x) oshxz0vb+ld 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 connected in parallel, the_________each resw+ucuo 6,n b ai 2o2pv);ft9zqistoro,cnuua z+ ;ovtp29 2iq) 6fbw 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 of a ligf .nq)4h ,v.(impmgothtbulb causes the filament to becompih.to) .m ,qm fv4ng(e 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 LEDs. fmbxm; 83b0d xLED is the acronym for which one of the fol;8 xbxbmm fd03lowing 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 crosa9zz6 . drjd7ms-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 ol.zm djzda 976rd 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 tbhm1m+e u.rf(yvu . *swice the diameter b1 sef+u. mhvr.yu*( mand 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 material butm*hf0d 1nc c*-1*-fbrczq s*j1ocggv has twice the diameter and half the length of wire X. If wire X has a resistance of vcsfngo1j1 -z0**b fcrgcdm**cq- 1h 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 r.ii 1.h8w uo -h,lvevzz gh1j52 This piece of material is then drawn so that it is a cylin1lwg .vhuz8hjih o-v25z,1ei der 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 ke6s:w 6(e x/zqo)nfwbrighter light bulb. He decides to modifyqz/n 6e osewwxk) 6:(f the 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 same d* abx4(ewjev5z0ull 3-i ph5material. The length and radius of each rexl-(hwe 4 u3dvejbp a5 5zi0*lsistor 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, ,1jy1j run3e7l ityxa6 (( alkeach 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. This s3jiyrka1l(j 71u6 (extn, al yet 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 ttp 4h+wl)dhc*w5q t* whe accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter readdq)w*+t5lc wht4 w*hping 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 tog(vrmbcu nu, 77-kd4q the right. The three bulbs 1, 2, and 3 - represented as resik bvnqdcm77ruu4 -(g,stors 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 simpl+cwx+ec3mf38 z3tvp) l8 akhm e electrical circuit at the right. If the current in all three resistors is equal, which of the following statements m 3plhv +kw+ a33mtcec) m88zxfust 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 riss 3rzmza irjg219/y2ght represents a simple electric circuit composed of 5 identical light bulbs and 2 fsg 3yjram9s/ 2zz 21rilashlight 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 theg ht6v:r)z)as lc15dni -p+id simple circuit shown where rp+l-dci6ghn d:))savti 15z resistors 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 in series to a batterqg1 )()kvpnn bdypi/1 y. Bulb X is brighter than bulb Y. Assud)yn1)gbpn qvp i/( 1kme 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 will cnq uyeykf 39.1hu3 /z pass through the identified resistor in 5 seconds once fu3nzek uy c/ h931yq. 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 haju9k2/l ;guy4by /(uj*fwz4qan5w t zqm a8- tve the same resistance, which would dissipate the greatest power? kujz8j5(mz/yu4a *- a 2q4/ftq uwl ybntw;g9


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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 current through tsfsn*t4u;:kg *i 6udgui m,2z he 6.0 Ω resistor is 1.0 A. What is the power supply vmn*u:u4 6ud ifggz, ;kst2i s*oltage 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. Supp bn - bst9i.z)5yetk8eose R1 carries 8en-tk5 z9s ) .biybtea 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 andR*n3 yo4 27v9d1s ub5fidhhz7hbar8gy3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current dsh1g 7byybf37* ouhhz9 n425rd avi 8in 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 ratedcoeo; ;l6n q7jd2b4fb 1200 watts and 120 volts. What is the maximum value of the current undbo ;7j4fb2;dlqe noc6 er 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 designed to operate atogj;*xy-of ) t 120 voox)ft jo *gy;-lts?

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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 ws ai0t 81;z.obal8ktxvyg8*a 4 ohm resistor that is dissipating 36 watts of pow 8ag i1t vobxy0t;sz* .wl8a8ker?

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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 pressgz8qx6 vvk5a0 clothes is marked "120 volt, 600 watt.” In normal use, the current in it i vga865x0kvqzs

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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 vj-;k q00d1p6e nvntqfollowing resistances could NOT be produced by a circuit containing only t6vpe0njnq0 1-v k ;dqthree 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 equivalen n/rljs14t70ud 8dp/ ;ccen1bdz6cg p t resistances CANNOT 1 n c n;rspjtgbcp801cd 7u6 dl/zde/4be produced 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 in5x7b2n1k5k rcfcx ng+ different configurations. If all three resisc rk+1k 5fbc7gn 2x5xntors 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 power 1b2./ bgntgmd 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 batg.mnt /2bg1bdtery? 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 cor+dxd9i23s w rnnected in parallel, the equivalent resistance o3ir2dsdx+wr9 f 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 resistance of 12Ω when operatic:(zb 6yyp6p+ql9p2gc7 jeh d8dh 2 dtng at 120 volts. What is the min8qppdh : + tge6zcd9h2yj2(lpd7ybc 6imum amount of time that it would 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 i)7nw0 (p emer4 ohm resistor that is dissipating 36 watt pn)re0e m7(iws 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 heabgeopa5-0 zq,c5hs6q7/jmm q ter draws 13 amperes of current when connected to 120 volts. If the price j,p 7hm ogb0e5zc6m/ -qqaqs5 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 woulzwk i9j:2s)mkd it cost to keep a 100W lightbulb lit continuously m2w sjk)ik:9zfor 1 year 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 ligbgs 08ouvy f jphdfy45*(1tx6htbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the res0f5( hu6 s8 fbj1xvoyt pd*g4yistance 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 o1;/)q jlzfc7p l( yfu+blrl8 rf a family of six owns a computer 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 maximum number of the computersrljz+y 7l f;l 8q/f1bpl()uc r 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 r:rwgtd5b042dum h(0uup / d f8uiqb/aesistors to form a simple circuit as shown to the rid 0gd8u5:bp ui/mdua bh4/fu2(wrtq 0ght.
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 7q pqr.:g/z0wg:j dkz yswrk5/uae4 (resistors to form a simple circuit as sh azqes: k .5jgrq:uwpkgzw/ 7(dy/4r0own 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 three dliz9ts ,zn :)resistors are connected as shown. With the switch open as shown in the diagramtd 9szn,iz)l: 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 sy3ittq2cy5 w73zwzb * se2ns-witch and three resistors are connected as shown. With the switch o*ewzni y3 yt53 b wsq7cz-ts22pen 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 ideowm*2 / zfni1fy+ohvzd-0:weal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeternio*+whm-2/yzz ff1 oed :vw0 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 resistance? *7 r6u-nglb b/wlik7h Assub6 /kl7nir*uw7gh bl-me that 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 equivalent resistance of the circuit b-c;et-eo xl*eak4v 5 shown to the right with resist etceo5ax 4bl*v -;e-kances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistpz x;dejmvk 1+2n5* rln8zx :f ctuz.-9dygx3ors connected in a combination series and parallel circuz-k*: 9p e2nd.znz 1c+xjr3 xxmg 5yflvu;d8t it 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 uvd6ssl+.8cwa6) uk h five identical resistors connected in a combination series and parallel circ.hka6 s68) su+lwcuv duit 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 iden m,e xk*ar,*sxtical. Which bulb will be the bright*ekam,r,x *x sest?


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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 ammetlt:b; 7hy /xp1rq0ukr tu94sner, a switch and three resistors are connected as shown. With the swix401r /t r hyqt7lnkpu u9sb:;tch 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 switct1ogwm l**m2dpyc4-p ; xmel0h and three resistors are connected 2*dmmml-;x 04 oc*lpgytpe1w 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 th9in7xp 4 6sokwq* k5*xq -qevaree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampi6 opq-n 7ew*9xqqv*4x ak sk5eres.
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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