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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 the metal rbl:asv7msvv id 9/ /g(esistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of 7dss/m(vb/vagli 9 :v 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 co** 4 i/f*eg/utfap amh8(wcd knnected in parallel, the_________each resistor is the sameu/t/8hk fa4ce pmfi*(wgd**a.

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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 lie+j 0 ,7u5vldfrgvjh n 1e1nd.ghtbulb causes the filament to become w+l,1n0dve vu5 gjdnef 7hjr 1.hite 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 beskadf9o19:,geyn i p7 ohqf) ;ing replaced with LEDs. LED is the acronym for which one qh19 ) go o;ypfenfa,9s7 :idkof 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-bio rc z(.)o0s.,1rn* rbvvrt sectional area A. It is to be placed into a circuit, but i* r rb .,ro()ci0o1vrntvzs b.t 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 gf o0+; y6x5dkvjiywew jhr3p /b--8w material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has re;wyp-rb+wh yoki-j f/ 0w vj6d58gxe3sistance

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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 the8di38qrl 7ln3 q ql5uu same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y wdr nq38l5q lu3 iq7ul8ould 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 resistor881pvrkc ke7n has length L and radius r. This piece of material is then drawn so that it is a cylinder with new 78r8vpekk1n clength 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 xm,ee.+jacjw x /;cowmq3(;v/6krrd make a brighter light bulb. He decides to modify the filament. How should the filament of a li,/m vw orjx (;q+;d 3xme/ake cc6rw.jghtbulb 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 material. The lengivv)lejmo s998g jif 6y3s2 p/th and radius o9sf/ovs)83vi9 e lmi6j yj2gpf each 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, each of rs;*5y m6 tf:ox6-a3l13 d -kl0yh nmvibshygwesistance 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 thsymy-t;lw5bvnk*6m -xdy s1hloifh3 0 ag:36 ird 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 internal resistanv 1wxdek 0jcg4ois,89 ce 10.0 kW and the aid1kjxg vw ce0 ,s49o8mmeter has internal resistance 25.0 ohm. The 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 shownyfn6nvbc3 548u4yv28mh n l ms to the right. The three bulbs 1, 2, and 3 - represented as resistors in the dib6u284mhscvf yml4 n5n3vy8nagram
- 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 elehn*6mp byi677b(re k ictrical circuit at the right. If the current in all three resisi*7( bbmhky6er n6i p7tors 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 right orp:f j36mov,/b8sfjz:8 ta y* butt0represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells 0sf8tyjm/86b u:j3fp*v, tza: tboor. 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 simple ci1rqh t, ttk5 jw)f7.)6l znwxhrcuit shown where resistors R1, R2 and R3 are haqftw1 rw th jh56.tnz)xk),7lve 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 bri ajo4gv ts*2jz2v 2f4mghter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the same bat4s jtfa2zg2j* v4 2vomtery, 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 coulifu2yd93 , yocombs will pass through the identified resistor in 5 seconds once the circf cid2uo3yy9,uit 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 foll8qs06vlklwte.de99uz*ae2 t owing simple circuit have the same resistance, which woulk962lq9edt.* zw 8 v ut0easeld 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, the current o(l 5o51v;girgoud iaxj(-o; through the 6.0 Ω resis ;o15lgg5xu- ;oi oi(oradv(jtor is 1.0 A. 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 R17zs t:in-)ppy , R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipait p-z )sy:7nptes 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 5d au.ah-a1tu w16s zhandR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R3uhu-1a5 ahwat6 1s zd.?

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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 is the maxi8k j3di)y3ij7jnkwaowq. 7g , mum value of the 7 nk3jwqiw8ao 3j)g7k.j,y id 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 i y :v( 4a(wa-dwhp:ku*u(lv mto operate at 120 volwaa4v- w(ukpml v(y u *i:d(h:ts?

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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:ve zkqb:7ddq5u;n * g flows through a 4 ohm resistor that is dissipating 36 watts of podq*7u:qdez nvk5:; bgwer?

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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(zhc9o(cj um)3wp2h uo+f mo 6 is marked "120 volt, 600 watt.” In normal us3h pm(cwuf9 omzu2j +6h(oo)ce, 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 7rbec7ntw 0xmee : o:7/9oy yscould NOT be produced by a circuit containing only three idewecobn ry7see0: m7t o9:/ 7xyntical 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 xgh3zhm5f 4df- .y(c fresistances CANNOT be pro m-c3f hfgdyz45.(h fxduced 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 indrp.p;r4ecp*qsqc y fg 2*z;c*j 5o2m different configurations. If all three resistogosj p*c z 4*2pq;; *f5cdpreq.r yc2mrs 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 tolw4xmh1.lx,v4 s lf4ntal power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series usim4w lv sx1f.hlxn4l ,4ng 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, a4sruf 81 s,fpqre connected in parallel, tf,1uqr 48spfshe 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 i*3yrn 3lfag c).ixn) tt has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would takfr)na l)y.3 gin3 x*tce 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 kcsq.3g)v my6:vx z6z is dissipating 36 watts of power?zmgy)v6 vx3:6.cqs kz

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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 wh*vj 3ij ldz 7nv6bga *e;0:i9 wqxhg-ren connected to 120 volts. If the price of electricity iweq07zlx-3 g ngd*v6hj*a ;j rbv9:iis $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 wou8zkxli 8e 3ht1ld it cost to keep a 100W lightbulb lit continuously for 1 yea8 lt8kze1 x3hir 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 4.00tgz2 gj6(r yg,wkou14 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices ggg, y42oju6 r(tz1kw 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 *c q.0i scl3oba computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuseo*cb03 si qlc., 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 r5kdqsm8o9 +ih l3c,isesistors to form a simple circuit as shi ck sl5io93,q+hmds8 own 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 batt15ai +tl4j5v)v3h:3 gl.xdt uivr farery is connected to four resistors to form a simple circuit aaigilvj1r.d3vxhf5l+35 t :va)4r t us shown 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 resistorsv5dv6wjs /q-m/ss8wj pkv4- f are connected as shown. Ww-p 6qfdj8/ sj5 sw/-4 vvmvksith 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 ideal ammetc)m 0c6qoj..7 idtyirer, a switch and three resistors are connected as s) m dycii t.r60joq.c7hown. 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 resistorq/7uq;67v 1x6eitjn nh sil6bs are connected as shown. Wi/ ihq; q76l1iv6xub ejts nn67th 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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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 resistanceki*am - k35wklwezm*. ? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have lk.3 i* z5ea mkmw-wk*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 f:s- jypgd-pt*lz55 jthe circuit shown to the right with resistancesjd5-:*z5-g j pfpts yl $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 zn 9n0rtub 46gb0kn,va combination seri uzb,v 9n60bnr4tngk 0es 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 five identical resistors connected in a combnj 317/gw jf) l)ievk: 5hqrwwination series and pg ewwqrwf3)j1/jh:k lv 5ni )7arallel 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 identicdg18jsq tcqcdjs i 7m0u7/5nthxp;:7al. Which bulb will be g0c7 mujhd: 8;5itq p7d xq7cn/s1stjthe 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 ideal ammeter, a switch and three resistors are i c326j3htjy(p4k o etconnected as shown. With the switch open as shown in the diagram the2 3 h 6jjy4ec(kt3tiop 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 ihrxte 809n6d bdeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 29b e08thrx6d n.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 resi (ze09m3ylsmkstors are connected as shown. With the switch open as shown in the diagram the amm(sezm9m y0l k3eter reads 2.0 amperes.
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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