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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 elew d/f(tr55 0)ymiw-0,sl xdtckan y c+ctric current exists in the metal resistor connected to the battery. Which one of the follaxrymwdwl5k 0+s 5 i,c/d0t-yt)nc f(owing 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 resistors are connected in parallel, the_________eachk()* 1 yeyoj/r s+hgfa resis*/kfghy 1j)orse + ya(tor 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 light* fo/wf2nma/zy 2-yixbulb causes the filament to become white hot, while the larger wires connected to t /mf ao /xiynw-y*22zfhe 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 repr/ z 2vheh*t*xlaced with LEDs. LED is the acronym for w/2vz*erhh xt*hich one 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 us1bl-9a 6qirresistor has length L and cross-sectional 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 isar- 6q lius91b 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 material. Wire II ha vh( a3 sgkg04e58nhvfs twice the diameter and twice the length of I. If I has 5v favkh0gh48g s3ne( 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 diameter and haita0,c z ;q v-da/ i+2dtae(yllf the length of wire X. If wire X has a resistance of R then wire Y would have a resistance oa(yel idzt /20cv;aq d+ia-t,f

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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. Thdh3 /c(0wb dua/bhb6 his 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 3hh/6dhb( / bw0 budacthis 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 decides tc191fal ( v o8bpmgs;eo modify the filament. How should the filaml 1pvfs8;gb 9ac( moe1ent 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 materia:4sfgyi xp* 3xcs c3h5l. The length and radius of each resisthcigpxfsx: 3*5ys43 cor 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-t: r2m gmf4:/icinm l to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in/n mr:il tm4gmf2i-c: 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 3*- x-1jziz,mqq tmczaccompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading izm3j,-zqxqm1 tc-*z 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. Theura2.6dxd,gt:7e5g0-j rn( y pn bsvc three bulbs 1, 2, and 3 - represented as resisto (yggu j.r rd-2 e,6n:cxda0s5 7vpbntrs 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 elmyc o4b h+9rjn2y9;t cectrical circuit at the right. If the current in all three resis9bt+ ro n2y;94jccyhmtors 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 righlyd5j -;*rx 0i3ugch7h mzjo8t represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or buujz -*gmcrldj03o8 ih x7 ;5yhlbs)
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 stat)3b fua 44vgnyt-fe0zements is NOT true concerning the simple circuit show 34gf4nbtzuev- afy) 0n where 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 andYn- s61+g h6hrwb;ye9hpx hy-j are connected in series to a battery. Bulb X is brighter than +6pyjhxw 6n1hb hh;9 -ryegs -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 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 res:3m9x e yauyhu-z h)a;z2s) bmistor in 5 seconds oncebush)23 y)hmxa;a-uym ez9 :z the 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 following si)oue ye8 ph3u7v3olix q,ye6yw(;* s smple circuit have the same resistance, w vo3yex*78ioysy3,s;(qu u6e )lpeh 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 diagram, the current n9ne xdvc:rv. 5omc4 : s)(4msx4lfyv through the 6.0 Ω resistor is 1.0 A. What is the power v .nv9sln5)(se4:m cv:oy4c4fdx mrxsupply 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 a*on cp u1phc2,re connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates cpcnh*,pou2 16.0 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 a -4hwky ia as(:jr6;ff*q,8 sx uu(glqbattery. Suppose R1 has 2V u(i84 6fwj;as qak (x:*ghrs-luf q,yacross 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 rate4.be +y3we eqc3j +lnbd 1200 watts and 120 volts. What is the maximum value of the current under these y4nl+ e 3w 3j.+ebcbeqconditions?

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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 lightbulg+o6 akkdrwb s)r 9uvk; *u-3jb designed to operate at 120 volru)k*k;ar9bu 6w3- ko jg sd+vts?

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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 resistohet:r -f r;fh rcfaq) 5lg6:k*r that is dissipating 36 wata5 erlr qgckh:f; *f: 6rft)-hts 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 prel/4kizv57 +na5uugsd ss clothes is marked "120 volt, 600 watt.” In nvi5g7+dsl/uu az k54normal 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 resistances could NOT be pro;6(hgl 9epoass(o,u vduced by a circuit containing o a9vlo gss,ueh(p6;( 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 Ω resistors. Which of the following equzsnhm p+2)fq,, yus9+8 lvvev7hbf2bivalent resistances CANNOT be pvq9n) ,bm,ff ys8zh+ shv2pubv72l + eroduced 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 cov ,tpb 07pp;avnnected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can bep b0v,;papt 7v 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 total power P is fc o 5qumb.l6z 6y2yw*dissipated in thebo.2fclyy5w* 6 q6zmu 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 connfecavz(zh o)tz 49d3hw7rvu. 6kz*2c ected in parallel, the equivalent resistance of the r*9 w4ht6o)c vzhv(efazkcud 3z2z 7. 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 suc sp,45plyc23grj pz:nh that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water from g4pnzp5r, s2yp: cl 3j$15^{\circ}C$ 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 iswnj)de si7tu8bk5u(qp8 t w,2 dissipating 36 watts of )ku8d7i ( w5sp qtetwb8,un 2jpower?

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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 drawsz*rkbmf cq-1kl3zb3 7 13 amperes of current when connected to 120 volts. If the b7 rkc l*kzz-3f31qbmprice 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 mu;pg6,-somii1 1jtnrx zr). lbch would it cost to keep a 100W lightbulb lit continuously for 1 year a1;izn1or brm)p.l i ,tjxs 6-gt 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 4.0hqa6x ,,*zm :g7tqft x0 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best representfmtzxag6 ,*q,qt xh7:s 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 of8 pg8 pmct:uo( six owns a computer rated at 500 watts in a 120 V circuit. Io up8m8 g:(pctf 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 is connected )kcd)sy)lgb5;7snd:v fqin v y 6 )s.cto four resistors to form a simple circuit as showkf)qcb :d7nc)s v)sy5. ngsil6;dy)v n 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 fx svg 70m xc8t(k+h k99lko(ddour resistors to form a simple circuit as xm9tv0c8kd79dxo kg hl(+ks ( 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, aseby+2 wygls,:b: j8k0y*xpd switch and three resistors are connect 8dew+jg ybky,l*:p:0bxy 2s sed as shown. 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, 7wbvpg g c)9h(,zp+y4fhln9aan ideal ammeter, a switch and three resistors are connected as shown. With the switch openl9g h4hap(bf+zv w7g py,)c 9n 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 aarh,n ,, +wa;fw:8yrw q8kt zxmmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagramkw;zrt wy8 8wa,:rqfn+x a,,h 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 c3dc8u - ne,qud5zq-g shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has -qd, d83gcn- z5quceu no 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 resistance of t 5-z7pu+ze(ce ekc 6auhe circuit shown to the right with reszc ( e5+c6a- ezk7epuuistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 rc2v9 m2oasa37bl5 gukhxr +o4esistors connected in a combination series and parallel circuit to a voltko 2r9avug 3 s7xa mc+bl5h4o2age 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 co6gbsm+jc/ m6p mbination series and parallel circuit tos6pbj gm+ 6/cm 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 identical. .vx1t7yy r s4pWhich bulbrpy .y4 1vt7xs will 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 switch akot1* 2x5 0kji rcpg5hnd three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.j50 x* k 2i5kcpog1rht0 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 threezd;n+ko9 5tw.gxf9bv s 6ag+u resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a n5ts o 9+z+gukg9w6d;.fvabxmperes.
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 x)d,1myb-1ka + e*to(azewkq resistors are connected as shown. With the sw-(t q+yam,w) z*xd ak11beokeitch 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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