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习题练习:.Resistor.

 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 cos64s yfuyfxa 4t-3c ,tnnected to the battery. Which one of the following choices best describes the dirtytcf3su x-6 4fay,s4ection 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_______:or-.+ vwts8yp ;sz vj__each resisto.v;-y sjsvz r+ :p8twor 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 causes .8dyg+ 4p7 zbxogoy0p the filament to become white hot, while the larger widybgpx487 z op. y0go+res 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 replacevycesv 2(oo 1kmuna8v++d, y; d with LEDs. LED is the acronym for which ondeymo(8 v1+ny ;o,auk2 cs+vv e 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 length L and cross-sectional aiy 3:gged)x ;srea 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 cylindrig3 egxdy s);:ical 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 material. Wire II h7bnh+; zwzvua+9c x n0xa;ej ;as twice the di+xjec7;v naux;9na0b+zw ;h zameter 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 of the same material but has twice the diameted8 2e8-atzj u hxrg/c3r and half the length of wire X. If wire X has a resista8 cj/- 8gh2td3 xruzeance 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 lexz 8fsj8.p p-mngth L and radius r. This piece of material is then drawn so that it is a cylinder with new lx8pjsf-p 8z.m ength 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 bulb. He decide jnhq 46z2rz:l+e pe+yab+aj7 7v( rpes to modify the filament. How should the hqz6a r2lj7++pr:ebyaev4 ezj7p n+( 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 the same material. tj9) yi7cpt(td m,+py The length and radius of each t(9pj d ,i+7pyt cmty)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, are connected to a battery in then o ).tj oclgfqz8 n0-l0h2u5b following way: “Two resi n8ogoh0zcq-5l 2u 0l.)bnt jfstors 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 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 rszycfa4jh )3+u snz82esistance 10.0 kW and the ammeter has inter2z)uc4zsf+8as h 3 yjnnal 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 shown to the ri (u28 vmx6popb:zdw8dght. The three bulbs 1, 2, and 3 - represented as resistoru 8z bmp6pvd:8xwd(o 2s 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 simp-cv2kf cbsx1y 9u*d d-le electrical circuit at the right. If the current in all three resistors is equal, which of the following statements f byx2uvcs-kdd9c-1* 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 rn-7-ui ;aixb depresents a simple electric circuit composed of 5 identical light bulbs and u x ii7an;-bd-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 statemenu rgh f/v(*)lits is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistanceslru/fgv) * i(h?


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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 wo)f eqg v5(z)xz8nt70 ye.ohandY are connected in series 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 other to the sameot8qn0ge o7fxh zy.w5()e) zv 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 througw:s-1ghk()t( nev yzn 0.ec wroiqdf/e(h+ 7xh the identified resistor in 5 seconds once the /.(s znkv)o(ece(te7h fhn1i yd qgx0wrw- :+ 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 fo n2ed-2o6gzro llowing simple circuit have the same r-gn2odo6rz2 eesistance, 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 cyhrn6( jhjv76 sl*sv:n,qq1 xircuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the pos,nr6 qq*l6h :jnj(v yhx1sv 7wer 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 /+ucl;caq+2ia7uvuvs v (vb. series to a battery. Suppose R1 carries. ;/(clv uavu iubc+a7q +vs2v a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 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 ancm .u6k buwu*,ut 3b//nxcyv3dR3 are connected in parallel to a battery. St3m6xub k,/w/y3ubccnu* uv.uppose R1 has 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 watts and 120 vo i9vd2r -rfk /o(+v fxy7o4k0amp hqv2lts. What is the maximum value of tv 9 m472av -+p ohrk r/d20oyqffix(kvhe 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 48 vcu pru9*1qej p25ofs m)rrat 120 volts? spp f41c *vo5reu9ru2 qm)j8r

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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 t0xdtm y;+veqyohl*j ;: (h4pphrough a 4 ohm resistor that is dissipating 36 watts of q ey*+dx0;thyoml4 hjv(p:; ppower?

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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 marked "120 volt, 600 watvlskj *x 07fo8eb,e-u t.” In norma7*lbj8f e evu0, x-sokl 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 resistancesq 1a6n*jx7 wdq could NOT be produced by a circuit containing only three iden6dq n*7ax 1wjqtical 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 equivale llq dby;10r, z)cgjh.5zjgj*nt resistances CANNOT be produced using all tzgjq)lj.*zd 1ghyj ;5 ,rb0clhree 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 dixvl h 8-07xmizfferent config8mvx0 -lih7 zxurations. If all three resistors 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, ic8 1tgsfg(3o.x-/duqpw ;yca 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 thos;yqp- g8ugdix(/.wt 3 1c fce 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, +h+e x8 ,)(nmhwuw:b hdqpk1 khaving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements w 1p h qhkhm +:)e(xwkd8n+,ubabout 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 designe 7jv:zwl38b ; cjdpf0nd such that it has a resistance of 12Ω when operating at 120 volts. What is t70lw:zfcv8nj jb ;d3 phe 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 o: nn 4sp/6dyxe;fs qyy09y+u9( zyonqhm resistor that is dissipating 36 watts of9n ysuqyyd96yf;qe(s x4:z/p 0onyn+ power?

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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 ampeg,2oa0ry nzz 3r+e(i zres of current when connected to 120 volts. If the price of egoe(z3z r2y rzi0a+ n,lectricity 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 len(a5t) emr f7it continuously for 1 yearnft) 5eer7(am 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 cur0kooz8j7 3nl9eyqbu x(9 w0ku rent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of tjqo zx8 3e(kku9ywol u9b0n07he 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 rated at 500 watts l;nt kf,r4he2fu ):wdin a 120 V circuit. 4u tn w;)dlf,k:hf2reIf all computers are 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 iaqio7 7mv pd1v wg)2d;s connected to four resistors to form a simple circuit as shown tov1p ;dm7g27 o)vwadqi 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 8cld jho,m3,j to four resistors to form a simple circuit as sholjm 8j,,oh d3cwn 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 resiskr. axien9 d4tb4fhi*06heq9 tors are connected as shown. With the switch open as shown in the ki*rd.abne 90fh4xt4hi6 9eqdiagram 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 and tld h4u :l+u8hbsqrq,chx2n 9(hree resistors are connected as shown. With the switch open as shown in the dx uqhl9 (+hr4,d2 unqbcl: 8hsiagram 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 f /*oc8k kxfqog4jl .4connected as shown. With the switch open as shown in the diagram the ammeter reads cqoxg/ f4ok jl8fk4*. 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 equ oajt hqruc ,4w8ndiuga0mz)f *)b7;(ivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistancu mi)burazjd; 8c)0 *fg, a4ntwhq7( oe 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 f mu,8q8 nix* kk4iwc2f0(uowjtcs g+wz*w, 8resistance of the circuit shown to the right with resistances ci xzs0t 88f(nw*o4ukmkfwcqgwu+,, jwi28* $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 con83f(oxq-s l cnnected in a combination series and parallel circuit to a voltage source.nqo (-l8 cxs3f
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 resi*8hvc3jf3we v stors connected in a combination series and parallel circuit to a voltage *h83jvve3 fc wsource.
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 the5gnbs/2l(lg5:dr pt 9- (hai omvo9be bulbs are identical. Which bulb will be/br ( (goins5 ehglopmld -2: 99b5atv 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 switch and three resistorn:gy * a 7qnq8hi*g(eo;pek-ps are connected as shoeq*n*:p gai-( eyq7k ;h p8gnown. With 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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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 three resist m(emvz,)nb (va5i 4o rfltz:,ors are connected as shown. With the switch o(mo,l5 n,i4 :e mftrb)vvaz(zpen 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 s5wun-w:-lz xgr*pw w4witch and three resistors are connected as shown. With the switch open as shown in th n4 wr--wwlwpu*x5:zge diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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