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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 resistor co 7q 9k-gtxmk1onnected to the battery. W 9mxtko-71gk qhich one of the following choices best describes the direction 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 resistoyrl9wbdi ) +xjh7 f y+e*: 03x-ldavxnrs are connected in parallel, the_________each resisto+r3fi0bvhj:e ldyxyx9a)wl7 *x n d+-r 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 throughg:+z:xt53p iivui(oj8pp wy c8 +8obt the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This 5o8cjz t8u op8yxi wv: iptb:i(g+p+3 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 housefc yuaue7rx,pp cnx1 bn 9ub9)i2(q(*hold lights are being replaced with LEDs. LED is the acronym for which one of the following cp(rapqb cu,xcueb fx*2 7)y(9n1 niu9hoices?

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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-skc5idtq0 i)xkz n.9lney-2g: 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 t:9-tkne5d.2zyign kq0cxi l ) he 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 nptlo7-iiagj++ c)w2zz5hx 2 II are made of the same material. Wire II has twice the diameter and twice the lath2z+ )-lp joi52wgn 7i +zcxength 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 materitv:b.-( qje2,qx q yt0cfjr4t al but has twice the diameter and half the length of wire X. If wire X has a resistance of R theqtc0 yt:,rjjv fx4 q 2b-.tqe(n 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 andk(7pk)uxk7 /bi io+s g 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 ofkpios+k /i gbku( )7x7 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 brighteayd 61t3dvh0- d2bwyer light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce3 2bhdta0yw ed6d1yv- 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 length anduuidg9/sg /a8h 5bx6vth57l vs/tvu gv8h xa 5gdu/59hl7 6ib radius of 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 resistance R, 5co j jicgia*1zc ;ubvl-0-0hz2 h9ij 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 arrangemeib5; zij 2o9*h j-h0vucjic0a-1lc zgnt 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 internalzr+2ux*a;b b wag, z3nmx52v t resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is vu t2*x xna;abrm,5wzz 3b+2g 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 comp;m (di5oz 3f +xf-trrats8y m5ound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagriad83tmf5(-r tsx5rfo; mzy+ am
- 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 crzz*d6s pk0y 6cyj)p* ircuit at the right. If the current in all three resistors is equal, which of the following 6*ky*p j cydp6srzz0)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 circuit com5d5 mu::rzs 5n b7ejhdposed of 5 identical light bulbs and 2 flashlight cells. Which bul:j5mnr :b5dez uh7sd5b (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 t0evkarc5 /iy8-h 2 voconcerning the simple circuit shown where resistors R1, R2 and R3 are have equal rvvaoky/5 e 2h0ctir8- esistances?


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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 serie*bvi240ahp rps to 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 ovr4h02*b pp iather 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 ide 9ocvwl6dh,f9msof315 z z8 g pv7da6dntified resistor in 5 seconds once the vdczoo7 9d fhdpflwg 1ms3zv5 6,986acircuit 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 circuitq7ip:o4jz(fr a kt(7z have the sameop7fk7a 4z(zr (ti:jq resistance, which 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 diagramn-+w +1 iczybw, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply +1wciybnzw-+ 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 connecy(4sqeiuuubs4(x.7smph8 a ; ted in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6uuy(4qssus74 8bpi; aexm.h(.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 R16u8uz t+ ttpoal.w+ ,p, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is thetlu++z8pp w u,6tato. 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 rate h ,t01pozh*lnd 1200 watts and 120 volts. What is the maximum value of the current under these conditionshh1p to,*l0zn ?

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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 oper63 p n:d5+j6em0 c.c ofebhlozate at 120 volts? 3bo:jd6m 5fp6+no0 c.lezh ec

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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 t k30ilnr6kk 90qdue 0dhat is dissipating 36 watdlud003n iq0 9ekk6krts 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 used to press clothes is markeh0b xg)-n 6tbpd "120 volt, 600 watt.” In normal use, the currentpx6t0 )hbnbg - 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 ad byi) 7g)v3nm circuit containing o3g7vb) mdni) ynly 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. mzy+agbo o::+v*,swi0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using +s o,::+i* zabvgym owall 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 in difft/ kl),zw9p ;ts rmqe)erent configurations. If all three resistors are used in s;t )/ ,l9r)qkptm zewa 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 h+hl 1ccghw8.q fy:tz8, niy6 ;jlf+j total power P is dissipated in the circuit. How much total power is dissipqh, z.1jti c+yncl+;:whj88hyl fg f6ated 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, h6-f;q ; il,ftdh.5bh tog a( +oldp2skaving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Whdblg5+dtpl( 6h , fiqot.;;hk oa2 f-sich 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;jfo.(lz.i)4t81 rjxkj dcxn has a resistance of 12Ω when operating at 120 volts. What is the minimum amoun.cjxz j xkr14.ond8li)t f(;jt 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 dissvqx ppevw* l8aljdm:96rg c-+g0 8quwz*d7g.ipating 36 watts of powervq8 l8g0q.rdam- :*zpjc7g guw d6l+9*pxevw?

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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 ampxpx.+q r .o wzan7w)p;eres of current when connected to 120 volts.o.7nxz; .w) pqrwapx+ 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 6 vk9mynu3y+hk 4:ui jwould it cost to keep a 100W lightbulb lit continuously for 1 year at a ratek:9uvu+ ji 34hy6nkym 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 lightb b9rsih,o2 1e*lidob9r p3g5t ulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represb2o,*h9li pg19 s 35obiedtrr ents 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 a computer wrb3c7hq*u ng wib4* e.6ex)yrated at 500 watts in a 120 V circuit. If all computers ai*)w h b xqe*3b e4.n76ucywgrre plugged into 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 ) eai/kf77e utconnected to four resistors to form a simple circuit as shown to the rig/ 7)kte feuia7ht.
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 circq-*unjlh; c i4o6qjj0uit as shown6-cjn0q4h*j o;ujqli 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 resistors vlcn, ok,pnp(n1+o +nare connected as shown. With the switch open +pcnnp,( v +,nknolo1as 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 ammeter, a switch ayyrex4s3e)bmwb+u01:um et 6 e9hbyzh n1j 6 -nd three resistors are conn-9:e)eh eb3s6n y+6th1r1 jzm bmb4w y0yxuueected 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 qqs0/kw:qri *yrd u)) ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diaud) /)yi q*rq0sw q:krgram 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 equivaleg8wb;yso 1 5 uha)atauq*j j,2nt resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have i t a;,ju*2h 8yb ujo5wg)1qaasdentical 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 tgdy242mzawuc uh m6 (990oln the right with resistanu2g6u d0zyhoatmm294 9 cl (nwces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectc)*b(cgysf 8q)q m, cced in a combination series and parallel circuit to a voltage sou)8y,cfqgbc scq(cm *) rce.
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 ide6ocnxr ucjr9ivd8jr. o -*x,)ntical resistors connected in a combination series and parallel circuit r ri8djjr9 oc onxv.6cu x)-,*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 diav2fs8s 0gnx z.gram, all of the bulbs are identical. Which bulb will28 s gn.zvxf0s be the 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 swi b3 vn061b7.a cqk+v qzj kxx(e*otw9otch and three resistors are connected as shown. With the switch open asaxj w z9 7o1b6(kq o*nt+v vbeq30.xkc 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 switch and thr eoyw/xfpo :.n44+d6wowdys,ee resistors are connected as shown. With6,nwd/ f4.ew :oo d+yyo ws4xp 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 three ,q 9tm- zjem6tt,w,+sof 4yr(/gqo gx resistors are connected ay4 t,xm+ s(t9o6qr,mjf ,zetw-/ go qgs shown. With 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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  • 姓名:游客(未登录)
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    总分:50分 及格:30分 时间:不限时
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