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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 e5gv bdh1tv57/ kuda:l lectric 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 the1u5 avv7dh blgt5:/kd 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 are connected in parallel, the__q(+st y nr:;-d7z+kx:w xtp it_______each resistor is the same+y(zw+xt7ixks :: ;n tdrptq-.

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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 lightxuao*3, wivl1exo/k fyx)r0 * bulb causes the filament to become fwl1v,ux*o)0ia x3*kx/re yo 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 v,ma h7r0y pdki+y*s4 being replaced with LEDs. LED is the ap 7krmvdh4i a,+*yy0s cronym 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 lengz,lt xqd-t 6l3th L and cross-sectional area A. It is to be placed into a circuit, but it first must zl dt-lqxt 63,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 materiall odx8t 57cgqh7p zr(2. Wire II has twice the diameter and twice the length of I. If I has resistance R, II haqroztgp(58x2 hl7c 7ds 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 t/px9f*(mszo fl 9wlxg i*:5olhe diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resiszx/9lmf9*f powig5l: *xsol( tance 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 piece of matlzc0hvto2c+ yg *p9 ps)0iv:: cf)b veerial is then drawn so that it is a cylinder with new lengtp0s cg +:)9 ctobivvy*20 )lzevfph:c h 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 wzw*ei6a b*i9e s/ 9kgoants to make a brighter light bulb. He decides to modify the filament. How shosewi6b9* g /o9 ie*azkuld 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 i (dn,ftfzq/t(06q5 f8 (n-a jvjfdub the same material. The length and radius of each resisqn (uf fnfqbjj 0(v dizt/t8 d-,65f(ator 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, each5 0eh)bqakki2 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 set of three resistors is connected in series to a fourth resistor.” What is the equivalent resistance of this arrangek)be52 h0aki qment 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 has2/wfs 7 mztzp6jq4mk+ internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Thzjpt7qz4w s +2fmm/k6e 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 right. 8vi+ a*l jy.gbThe three bulbs 1, 2, and 3 - represented as resistors in the dij+b ly*vg.8 aiagram
- 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 electr2jkun7rq 6c w8ey(q 8yical circuit at the right. If the current in all three resistors is equal, which of the following statements j7e ywyqrnqu 8k6 (8c2must 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 elec94g4f3txwmbv-i7 oz*l5 gb 5exs erb 2tric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or b4f7 msb29 gx wxov5 e r3tlbb5*-gzie4ulbs)
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 trueo4c,xixqw m0q - e,1uq concerning the simple circuit shown where resistors R1, R2 and R3 are haveiou,cq w0q, em xqx-14 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 t0mund ltpe41r0rrb+ j:f l;z+21j0a slm p4gy o a battery. Bulb X is brighter than bulb Y. Assume all circuit eln2l +by 0e p dtrzm:;4rf1 sg u40ljljp1ra+m0ements 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 identified re*9cwe x5ecvo+sistor in 5 seconds once the circui *+evccwo59x et 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 st/ imr5t/lj8ukj 0bgo. a y+e+ame resistance, whi5toyig/. lbak 0rju+m/8e j+tch 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 circuit diagram,z 0h.*vq.yiz 8nnsrr: the current through the 6.0 Ω resistor is 1.0 A. What8*vzzqi.: yh0rs n.rn 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 seri9t u2mtvx k8iugh2q.9 ,6y ysses to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W ofh2qi. mu9,g kt6vy2ss 89yuxt 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 parallel tolx9) ztvsfzx4,) xut 6 a battery. Suppose R1 hxxtx6s)l 9zuvz )f 4t,as 2V across 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 w4 qf.y-b9 lzrktz5kx0 atts and 120 volts. What is the maximum value of theftzkk5x r-9.byl0 4q z current under 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 at 120 * uwi4 p)soey. r,gbfyul0/ no5so4f,volts)oyo*s0.n, b ygeu/5 olfp4 i,rsuf4w?

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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 l1gx n07jf+h t4 ohm resistor that is dissipating 36 watts of powert1lx f +hjg7n0?

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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 twe-col0t1 4s bo press clothes is marked "120 volt, 600 watt.” In n40e b- cwts1olormal 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 following resistances could NOT be produced by a circ+6j (1*vtv cnu(wcm :bju jgu*uit containing only th*w+t cubjn6jvc g 1 (j(vumu*:ree 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 equivalent f krow5 .y0j0g;* qzseresistances CANNOT be produced using all three resiszerf5 ;0q sk*o0g.ywj tors?

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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 differen l7qjdq h*jckz-p 1g/7xjp8k1 t configurations. If all three resistors are used in a circuit, how maq1jgj8zxphpl17dc qk kj7 -*/ny 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 bat5da;tyg*ybxe f4u vfj .dn ,4/tery, 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 res 4ad,gdt *uevfxnybf/.54j;yistance 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 connecte- p3hxjva p9t.d in parallel, the equivalent resistance of the.jhvapp3t -9x 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 oy*qr0;b*edoj0 qe5 ojperating at 120 volts. What is the minimum amounoo be0jrj;dyq0* *5eqt 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 thro98s 8*.3wo lxsybqcuc ugh a 4 ohm resistor that is dissipating 36 watts of pob8u*cxl .ss9 q wocy83wer?

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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 onk x:/y*y-tzfp/zhtcj ,8 )off current when connected to 120 volts. If the price of elefft/ 8y ,p-)znt/* :kxhzocjyctricity 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)do7tvi i/ac -55 fyzv to keep a 100W lightbulb lit continuously for 1 year atvd- ti)5v5/fo zy a7ci 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 ofs mg: 67tfa )obms6(vb -r8b,,erlaox 4.00 A through a lightbulb results in a power of 24.0 W associatedtlm,e )gmr(b 76obb6:8o s-v,xr aa fs 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 ofkwjsqq *q84-j v g1l)dzue(3q 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 prk8qzvw*gj ldu(-4e13) sqjq qotected 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 2 23gpvt eoda.6ms+so four resistors to form a simple circuit as shown to the rigvo2pe2+mg.s tos3da6ht.
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 fwseq:szr/p2c8f oyan9z/ 8x 1 uqe3k:69eld xorm a simple circuit as shown to the r9x:9q r/n 2e 8 1o/83:zspfswcd y6uexzkelaq ight.
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 thr zsenr ovj;:(vmz 84,oeh1 ab*rwx21 ree resistors are connected as shown. With the switch open as shown in the dre(2;1 wrv1bmr nvaoe,z8 o:s *hzjx4iagram 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 sw 3o57od0 kibxel3izz. itch and three resistors are connected as shown. With the switch openoe i ol0.b37zxik zd53 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 ammeteribfbx u* 2+6b)id cy2s, a switch and three resistors are connected as shown. With the switch open as shown inf i)2dcyb+u6s*b2 xbi 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 equivalent rer*hoo7), kfea exmn**sistance? Assume that all wires are ideal, the battery has no internal resistance, and all tmr7x*eaf* e ,oh*ko)nhree 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 thcw 0 3 *ljq,c0ujzeyv/e right with resistanl 0uzq3ce/ y0jjc ,*vwces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combina22h*4kanj eyomv j:b+am gu5)tim oeku4a vy+:g5j anh2j) 2mb*on series 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 9 yx0- nqp.auxz5(pkizg:jpu :5keo (five identical resistors connected in a combination series and parallel eyi(p9kn5ag5x( x -kpo zj0u:puz.q :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 oahe4e lb e;uje0/ ns4 p7lssfo,u8+4. Which bulb will be the bright4huoufeo/,7 ae+ess0 peslbn84j4 ; lest?


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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 /r 7dib( z)oaeswitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0)d o(/rb ie7az 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 sa9o:/1(s lwxegs lt*hwitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads l1(wh:o9s *gxa e/stl2.0 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*ls mw gwyh7dlh-e)),, a switch and three resistors are connected as shown. Withsygh lml7 ,dw))e -wh* 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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