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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 t cpyri9+n13xk .;b kl+ f5hdkrhe metal resistor connected to the battery. Which one of the following choices best describes the directi5 kxyfcp+n3 r+1 hbl9.d;rikk on of electron flow through the resistor and the direction of the 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_r :vyovfww;v .inw7//________each resistor is the sameno7 :/ vvvi/y .wwwr;f.

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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 lightbulbm) xrykgjm4b)94c o 7b causes the filament to become white hot, while the larger wires connected to the lightbulb remain m4goj94kbmbc 7)yxr) 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 lightsx.r 5gf tj0 )):1vcibwkpnkd3 are being replaced with LEDs. LED is the acronym for which one or:gdvji tnkf).0) kx3c5pw b1f 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-shcvz g (9qi6vzac4lbtz8: b)+ectional 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 old resistivity of the cylindrical r il9 vbb (c8a hv):46tzzz+qcgesistor?

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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 twiceyxvs w- c.aq+0 the diameteqc +.s0-y vxawr 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 ko3ovglxp *0nm+ j:d(of the same material but has twice the diameter and half the lengthkv 3dj +xp (nmoo0:*lg of wire X. If wire X has a resistance 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 a2;ld lefj,w9y7i bqi8nd radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of tdli7j wf9qby8;2i,l ehis 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 decij ,q x l( -9,crmnei-kx2exv)gk m9(ckdes to modify the filament. How should the filament of qcn 9 xmkv c-lxjg,mer (x29( keik-,)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 samed9r g7ib3zv m*/zmo 8r material. The length and radius of each resistorg7 z9 r/*mm r8io3vzdb 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 resistanccg4s9e3dy:rk.y1x6euw sl ym r s;2m. e R, are connected to a battery in the following way: “Two resistors areyys.94 rm6yxs2g: ce. lwm d3use1k ;r 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 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 accompam2x 2quo-je xd6k)fy-nying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading- jdy2 oqkxe6mx)u f2- 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.fh8c-/ uru*6oqucd b /4(w* gmoyuoi( The three bulbs 1, 2, and 3 - reproomh uduo/ -*cg w/i4f u8c( (qurb*y6esented 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 electrical circuit at thvwdkel- b )j/7e right. If the current in all three resistors is equal, which of th7dje /k) vbw-le 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 represents a simple electric circnvyn8k7j s 0tx ;*h-xluit composed of 5 identical light bulbs and 2 flashlight c8- ;ktnlxnsx*0j hy7v ells. 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 sim j 6w/varg*jryj6v4 l4ple circuit shown where resistors R1, R2 g4 rw /j6*4ryj alvj6vand 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 battery. Bulb X is bz nf3vs3b9l8c e43owxrighter 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 follow f9s8xz3 enlvw34ob3cing 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 resistor inm,j dpk4 gi)ls;w 3uwo( y(*zo 5 seconds once the circuit was cl;yo,m(o3up zj*(ig)w k 4d wlsosed?


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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 hf ms izuhptczbfs 1os( ( 0kst131y55)ave the same resistance, h 1tp1bkz( 5mstzc )01( s5 sofisu3fywhich 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 diagya umh)5c4j ,3wh, swyram, the current through the 6.0 Ω resistor is 1.0 A. yh ayc4,)hw msuw,35jWhat 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 se1r hculq ,z/2r g8vta7ries to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipav 7qcu2/8lra 1h,rzt gtes 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 connected in parallel to fb2()+l qy+ks oh7qkf c6x y:7oso -eka battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. s(h-ylb:s6)okfof77o e k ++kq y2xcqWhat 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 ep;3-foh e+jtn4zcs 7is rated 1200 watts and 120 volts. What is the maximum value of the current underf es+ tpo-;jnh3e4cz7 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 3 ef7.kj.*cmlz 0ow5b vt.4:rux hpoxvolts?. *bm lvrp3 o t oxzcx5.k.:hwj04feu7

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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 dissipat2f inl+m3/d53 zvacbking 36 wat3mv kl/+iz25b cf dn3ats of 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 u*b9 ni)h9iwuo*c,v x ased to press clothes is marked "120 volt, 600 watt.” In normal use, the curva h*i*i9ux cwb, 9no)rent 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 resist b9aq/m -7loj7c4w hdiances could NOT be produced by a circuit containi9j7cw47 o db-hq mia/lng only 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 cp0n5g2 x b ;3emz)zxh Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resist zz)x;ng3hbmex2 5c 0pors?

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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 difd)07 a3s, zng2gpxn iy*r ka*sferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be 27)yagnd3sx*r ,0n* ki apzsgproduced?

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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 connr73,yi cy 3xwaected to a battery, a total power P is dissipated ax3r, iwy3 7ycin 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 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 6p36p4l k80pkrp w n(t.mzwl:hras g0 connected in parallel, tlr:kgh lp0z8t .nparwkm(643w 60psphe equivalent 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 that it has a resistance of 12Ω when6zj /ai ,jyd.yz o-6ao operating at 120 volts. What is the minimum amount ofj 6/jazoyyzd , o.a6i- 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 currenqmm;znlp1l0-b a3,dat flows through a 4 ohm resistor that is dissipating 36 watts of power?blzmn ,0 pa qmad-31;l

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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 120 v)smndb* j 2zne71z )7abd prw2olts. If the price of electricbbas2wn rp)21jd *e7z n7zm )dity 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 d2k+v zmxnxqp 1pe1(7would it cost to keep a 100W lightbulb lit continuously for 1 year at a ram7zn2p1 x+dvxq(pke1 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 of 8ng qkd yslon19-0 )c2vm, unb4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best r-1snd n,n b 2umykovl)0 8qc9gepresents 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 gz8f7en5 n* epfamily 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 com *geefn7p 8zn5puters 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 40 r9hvthk y jfj+mv8.to form a simple circuit as sho8 tyj4r+h0mfkh9vv j .wn 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 resistors to foda81 pkkvoub.hoi-4 ;rm a simple circuit as shown to th .;4-pu8 a hioov1kbkde 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,u,q*smvi .(mar( ) vhl a switch and three resistors are connected as shown. With the switch open as shown in the du* s(ivaqm.lv,h ( )mriagram 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, aj8ln:in(z c2zz/km 6f2 aem4f switch and three resistors are connecte jzz4zfe6n (im/mkc 2 f2:aln8d 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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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, a switch and three resistors are conw fjo4p 6nu k7s25hv)rnected as shown. With the switch openjur 4h)5pk2novs w76f 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 equivaln103sae p )nsqeg46bient resistance? Assume that all wires are ideal, the battery has no internal resistance, and all threan3ps)6s 14nig0e e bqe 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 the right witxf)8 ) jw 9op5nwqkyo5h resistances owjfon5k )8)y59 qpxw$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idenxn9t166jhdoitzhu (4lk0v + wtical resistors connected in a combination series and parallel uj6dx+4ti06 n vzohh(klw1t9circuit 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 connecte+z,s3+b ajpted in a combination series and parallel circuit to a voltag+jz bat+ep,3 se 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 b;d4uf mdu0 oi;ulbs are identical. Which bulb will be the brighuu;mdid04;o f test?


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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 resistors are con7qcs+(jx7o(v drgs a .nected as shown. With the switch open as shown in the dc( gxqor+d7s.s 7 jav(iagram 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 switim8(oz8mrc1n4to gkqhwb i88 .7goa5 ch and three resistors are connected as shown. With the switch open as shown in8tb g 5honr .8i88mzai(koo17w4qm cg 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 a7urkk) 4+tjx0oo ri7t re connected as shown. With the switch open as shown in the diag 7k7+ u)0i4ortt rxjokram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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