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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 cjor8)c5s ruhy ,g:vp7 d+phl+urrent exists in the metal resistor connected tsl j+ohry+p8 ,h: gcrd)v5 up7o the battery. Which 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 resistors are connected i53iy: 3 iuy-k tphzc-8/zz4lkukhm0wvfd 1:hn parallel, the_________each resist:-t-h:w8vu04uic i p1kdm /zyz5hkh l z3y3f kor 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 m-)0, yy + wihd9ojsebj3xi;qthin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This hap90jedm ,y o-hqw+xbi;yji 3s)pens 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 arjjro:-) wb:ere being replaced with LEDs. LED is the acronym for which one of thbe-wjjo : rr:)e 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 re0s/o f*gi8fslx.-b cisistor has length L and cross-sectional area A. It is to be placed int-fs l.c if0gi*/ 8sboxo 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 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 has twicuqcxfx 0hp *7w86 ia u bryj+yhd:q0l), g1q8ze the diameter and twice the length of I. If I has resistance R, II has reuq1+6,a8px8g0lzud7i)jq h*wyhx0 :fqy crbsistance

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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 diamev ( fazmodd+h. ;w*g7 v3en,jtter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistanceejw 3ad hmd7 *+(vtgz;f v,.no 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 and radius r. This pieq y g+l;zxl, vi*:h2fqce 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 this procesi,*llvz y+ qg xq:2;hfs?

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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 bri5qscg x11:6r rydko vp-.b4 1ugy hu)ighter light bulb. He decides to modify the fila5uvq1s4yr :)pyog6-u1dx grc. h1ik bment. How should the 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. The lengthku 47wvhper 0r75/amq8b crv( and radius o/q (m8rwr70k p 4bv7e uharcv5f 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 reskv7r -sl0s2f,mcf o5listance 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 third resistor. This set of three resistors is connected in series to a fourth resistor.” What is the equivalent705 ml2vs fk-ocl f,rs 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 resistan2sph p3;3t z-g5 g2a kwrn(zence 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter readin5pkhtza32e g;2r3wzpg-(ns n g 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. The p b:7h1g*1rr 4yvoxmj.z oru(three bulbs 1, 2, and 3 - represented as res11uj47pg .mroxbry:*zh vro(istors 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 the right. If the cy)p 8jpsh5t5 /t;k ,a/soz eudurrent in all three resistors is equal, which of the following statements must bo5pd/t,zuy/s pt )a5hjsek 8;e 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 ele7dr7 k8ivgibfn: l.6x ctric circuit composed of 5 identical light bulbs and 2 flashl irng7v6fl8 bi xd:7k.ight 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 statements is NOT w -ln0bc. hm y 4-9hee 9sq*7-ltnxozvtrue concerning the simple circuh lwenot7 sye.9v-b* n49 l -x-hzcm0qit shown 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 andY are connected in series to a batbm0,n5fd pgut8ajo. ni u562ttery. Bulb X is brighter tht5un5 m t,8o gapbfd0j.2n iu6an 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 th 6th; (n-1;qfyrbzt lhs:c pe 152onyfrough the identified resistor in 5 seconds once the circuits6(5 tnyfp;tnf c-zlr h21b o1:yh;qe 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 dnf-a (m)iaiv 1cy3 -e*z:r mez8qz2yfollowing simple circuit have the same resistance, which would reym1di -a* zy3evnc2i(f8- m za) z:qdissipate 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 througif/f3f; zve2 az8e7 yzh the 6.0 Ω resistor is 1.0 A. What is the power supply 37/8fv ze;ffz zeiya2 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 ar 6o7eaf4ml3tb :jl y+.klb1 kae 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 ll3fa k4 1:y+k.emb7o6jb alt6.0 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 paralleh vg)a y95yy3e3snta0l to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the curr 3y9na35ygeay vths) 0ent 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 volts. What is ;26 fhz3 ul7xuw/vnoythe maximum value of the current under these condil/u 3o2wny7hzvf ;6u xtions?

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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 yb ag3s/dj vv0x2ed/* operate at 120 volt2/ysgj0eb*/3 d xdavv s?

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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 thro2s 0zmqn3o 2blugh a 4 ohm resistor that is dissipating 36 wanszo bl03q2 2mtts 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 marked "120 vm;.eroz v8 negxg5;g7olt, 600 watt.” In normal use, the current in itxv . ggmoge5r;en87z; 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 a cig/p4x6 ib74 jg hnz7drrcuit containing only three identical 6Ω resistorg/7 djr 74g4ibhzx np6s?

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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 resisto 2ba7bbdae 9-srs. Which of the following equivalent resistances CANNOT be pro2-a 9ab7sdeb bduced 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 vv6bzval8sem)w5 ml o:d9pf e2l8+d m8alues can be connected together in different configurations. If all three resistors are used in a circuit, how many diffoevfdmb8+va86ewm9)sp ll z 52l:d8m erent 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 total pokzsn0m+ v)2vh wer P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are con0v v+)z skmhn2nected 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 connectez64-z r1raiyl:2r, ujn * phkzus xf9/d in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statement zz4ufhsu:2zr-ya9* rl,x/61j nip rks 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 tnx 7ky :.vd8vour/8ovhat it has a resistance of 12Ω when operating at 120 volts.o8k v un vxr:v/.y8do7 What is the 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 curret (jb u)y)c y/3 3tnyqsdooh6*nt flows through a 4 ohm resistor that is dissipating 36 watts of/3c 6yyq sn dtb*t)(u)h o3yjo 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 amperesu.*w*f8ted r d)wbo7xsp* bxrm3iu27 3bsh g1 of current when connected to 120 volts. Ifx) woh*bwsb2ds773i1rf*u eu8pg.xmd tb 3r* 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 would it cost to keee9wh(7,-vutfi7k psg p a 100W lightbulb lit continuously for 1 year at t w7e9fi,k7ph( -vsu ga 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.wpq18h.l , qv l;pk2it00 A through a lightbulb results in a power of 24.0 W assoc;w,kpvl8 1t i qhq.lp2iated with the bulb. Which one of the following choices 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 siesb6,g g.*tk g0*hgzj ke5j9ux 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 maximu5 *g60jg.eu* g9shzek k g,bjtm 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 resistors to form asx+mf45y5si nfj-:o wer/c6h8qnr2 m simple circuit as shown to the right. m5/fr4sw8nijh -q s :2xy56nomcf+re
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 resistord(vd7q.swc4v w kpacx8v4,d ,s to form a simple circuit (dc w7 wc.sdk,,v8pqxv4v4a das 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 battery9n; ;7 dtppj0akdb ech (s;3rn, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a pn d;ehrb3(0nc7;j 9dsp ;tkamperes.
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 three resistorsj/ awz9/87j ln/+ nw7 zmousxq are connected as shown. With the switch open as shown inm wnwx nj/qj7 798uo/s lazz/+ 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, an8ve ,al)/,cxo5vpo*n c3k vlk ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagrac 3ollx ,8v v)c5anv,o pk/ke*m 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 re8o jxk h +5- gpb9zjl:4xyl5tosistance? Assume that all wires are ideal, the battery has no internal resistance, and all three re8 9bhp+oljy tol xzj:4-g5xk5sistors 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 resistq k2jnm uo(q7ch,::pa+io8 ecl h(5mi ance of the circuit shown to the right with resis,7:jin2h(8 emoa m5 cpqli (huo:c+q ktances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connecc d ph1 6/.psv8liykf.ted in a combination series and parallel c8pvh c.16. fy idp/lksircuit 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 5*zj lq2eac55qom(w jin a combination series and parallel 5 *5ma(5jqcl we qozj2circuit 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 identical.1 kc3 sfqf4jm7 Which bulb m jk3s4fq7c1f 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 and three resistokt(rduo6z: k2s2 z6bmrs are connected as shown. With2od(z6z6kb tuk sm r:2 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 resistors areh f.7lkms .l2sq/jp :xr fi,j2 connected as shown. With the switch open as s s7.i2kq2p.j fh l ,slfm/r:jxhown 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 resistors axniek s7 9v p;7nbqp/(re connected as shown. With the switch open as shown in the diagram the ammeten7ns/(ppx7v b 9 e;qikr reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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