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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 sho-m(gyhw/ruen+g0 wfjh2aq*d; 5,pxiwn, an electric 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 d(rp; h5*mygw hga0n /2x-u w+i,feqjthe 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 parallel7t yd0*v8pf8nr l+uzi, the_________each resist 8lun difzvtpr*708y+ or 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 lightbulb caus 54gb/gbpknnj) 96t)lmo hw bol-6at3es the filament to become jg4 )) 936bbo ah/ gtk-wlto56p mnbnlwhite 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. f2 *)j rq9n*r6nzbtug LED is the acronym for which one of the following*6ngrfur) t*n 9 2jbqz 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-secib/hozryu r5p60; ul /tional area A. It is to be placed inboluyzru i6 0h5rp;/ /to 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 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(4 d4/pfvnk* 2nx8d- ijiuyqu the same material. Wire II has twice the diameter and twice the length of I. If I has resistancepiyk u4j/dq-4(xnd *inuf v82 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 sa (b5:zb kn8qsrb6aj7rme material but has twice the diameter and half the length of wire X. If wire X has a resist 58b: 6z j7bbkasr(rnqance 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 r. This piece of ma7ngj0wnzcw6 9nkdt/awy4 +6 uterial is then drawn so that it is a cylga/7w+cn jnuny46 t kdzw09w6inder 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 5xa:1eo aq(6o-x t7q4n svp8: jth hgjbulb. He decides to modify the filament. How should the filament of a lightbulb be modified15hoj s(oq e8nt jxp:7:4-g6 axthavq 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 cylindricalkgip2l (iy/ow6)rziv+6f* ya resistors are made of the same material. The length and radius of each resistor ( yiklri*of+)2 6 /g6wpazvyiis:
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 connected to a * k2q6iaon)d,yfan6- ww wor: 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 arrangement of four rrw66wo2wfinna )y-a k do*:q,esistors?

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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 internal resista ;6q,san1ykyiy;lt)pnce 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammetes,kt)6;ny p 1y;ai qylr 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. The three bulbs 1cc4 k)b2zlrz*1x:zx)9v vsy h, 2, and 3 - repr2krz *sh)vc:y 1z zxv4 xb9l)cesented as resistors 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 elek8df8g opn.e 0ctrical circuit at the right. If the current in all three resfgdk0 . o8e8pnistors is equal, which of the 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 rice fagr/c2/7tght represents a simple electric circuit composed of 5 identical light bulb7g/re cfcta2/s 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 concerw:lh. lyyy 8/5;t htidning the simple circuit shown wh. : 8whyyttdhi/ly l;5ere 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 tom4;jgev zkb )9 a battery. Bulb X is brighter than bulb 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 represevg9;be zmk)4 jnts 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 idele 6ru)5d f,ich8bn7fntified resistor in 5 seconds once the dr) i76uh5e,lc8ffbn 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 followinp cp7r 3yw7ps8g simple circuit have the same resistance, which would dissipate the greatest p77cr8w psy3p 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, the current througty- j,m u6fl5p1ixr r.h the 6.0 Ω resistor is 1.0 A. What is the power supplyfxyrrl,-pum6it 5j 1. 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 c9c9 1bxj)v vf( wnqdey5ln( 5battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is the volnf 9nljecy)(51d qv9 c(xv 5bwtage 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 a8 c6 mqap9/6dh3bpahr ndR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Whathr6p qba/8h39adp6m c 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 volvcaho-cm )/ v:ts. What is the maximum value of the current under these conditchmvo-/:vc ) aions?

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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 desig, /j/smhz w7iyned to operate at 120 vol/ijszym,w/ 7 hts?

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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 throeayym/c8v0epb7f / jt+ ,wbt) n f/lg7ugh a 4 ohm resistor that is dissipating 36 watts ob/em ,/yp/tt 77wvc 80f+af elnj g)ybf 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 used to press clothes is mar)st.q( 7xte+uwl 2i wyked "120 volt, 600 watt.” In normal use, the usi+y wex .wq)lt2t(7current 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 c-+ )15c2hinm m85tawv oeg b;:bknjd gould NOT be produced by a circuit containing onlynv mj:58+)aeikc5w- n21go m gbtd;bh 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 reswy 6ywptt(o. 5fhfmo82n*5j listors. Which of the following equivalent resistances CANNOT be produced u2 hy*8t5wfl6o opf. t(5mnyj wsing 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 a. w:ugkbcajj*8(3 ljywr;c9 connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can bwg9jjjcu(l y wrc.3 k;aa8 *: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 tott fg9;6dp u+hial power P is dissipated in the circuit. How much totahu+dftgp 9;6 il 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 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, -sc3xtn a9/) fok vib2are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the fokb/i vons29txf )a3c-llowing 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 t b5oufp,ayhm-8c r6( that it has a resistance of 12Ω when operating at 120 voltspf5 mr hc (b8y-ao6t,u. What is the minimum 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 4 ohm resistor that is dissip:60qe-(ute wb xmt n- i2py/uqating 36 watts of pow(u2--qtx6bm enq0/ypi: ut we er?

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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 heatei(,krfuw2+ tx 7 hy.rar draws 13 amperes of current when connected to 120 volts. xi.rh+ ,kr7y2wtafu( If the 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 cost to keep a 100W lightbulb lit cont0 q:0t6 ck9 r j.ccsiw3s4vlndinuously for 1 year 9cct c00.rq wijn:s36dks4lv 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 kwfm:xruk; o0 6 t8or0lightbulb results in a power of 24.0 W associated with the bulb. Which0o:o8 ru 0kf;rwtkx6 m 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 adwel(q.0tlqyg9 a ,d5 family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into0qa9w ,(ltegdlqd.5y 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 form a simpbh7ep *2,x6 c9 bgqlulc7ry-l le circuit as shown to the rightqb*e-7bg9x 6,prl2 cy u7cl hl.
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 form a simple chdh 5dlu qpnu1w3s9tl;43lh ;ircuit as shown to the rip lh1;t 3 w4d59uhn;sllqd3uhght.
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 resistors afm27t)lyl cyc99rus j4uk4b u5b- rp7(/ fz itre connected as shown. With the switch open as shown in thr7jit(4ulszmkb9tuf y 7ybc2 rf9 lp-c 4u/)5e 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 ammeter, a switch andcp/+ h8wwyy ih/(sq4/0jjb qw three resistors are connected as shown. With the switch open as jwyq( 8 /+wh/j4sqih 0cyw/ bpshown 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 j b5bam fnvf/+dg2;/o t8f(yk, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown inbtdgm/yj+ff ( 2; k 8bvanf5o/ 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 resistance? bq3ii( 3wjy.5yr0bj6 ym p xn5 Assume that all wires are ideal, the battery has no5 mi(xyyb5nwpb603qyrj .3 ij 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 resizficf0t2t,;f lv9gtc / j*f 0 pa5( al0(kkhkcstance of the circuit shown to the right with resitpgf 0(/ak, 0czc(tlvtkjf;i9klh2 af5*c0f stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combinatibjzr5 a5e+ijs6 un9+ eon series and parallelsj9jerie6 zu +5an5+b 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 resistors connected ctn dpc+k57. h+tr. xwm,p )gtin a combination series and parallel circuit to a voltxh+t ,g)kp.mpn c7t.r wdtc+5 age 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*( v +xlfbrnttqki 3)5 bulbs are identical. Which bulb will be th()bn 5f+kq* trl3xvi te 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 ide g.c. xg;cuno.al ammeter, a switch and three resistors are connected as shown. With the swu ;cg.gcn.o.x itch 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 srpvv9q d.atqh) u++p a)k/z: gwitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 d)aqu p:kg)vhpr. q z9va+t/+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 idealb--s oa* si1f7j6*ycxb7giwr ammeter, a switch and three resistors are connected as shown. With the6y7 b* ij7gb*f1-swixc-rosa 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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