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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 ,irbe l,2w c:utx /yu 2z6gbn.exists in the metal resistor connected to the battery. Which one of the following choices best describes the direcuyg.lc,wzb2 r/,nb2:it6 u xetion 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____+s xj4.nmj0k09wrkd q_____each resistow0dsk0qxk mj4j.nr9 + 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 through the thin filament wire of a lightbulb f2a3+b jyrkz4byml7 -p4sd3v causes the filament to become white hot, while the larger wires connected to the lightbulb remain much coolepd k-bfjs ly24 rm4va3zy73 +br. 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 repxqoco 7 h5qrb6t)eetn 5w(8* flaced with LEDs. LED is the acronym for which one of the following cr*t( bco8q75ntoqefx6) w he5hoices?

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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 re/u mc ,(o6cv4lpgpie0sistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in/me( l0g,4pioc v6cp u 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 *x4grve0)zrr8z w4dy dew6ieus c)5 t:/)w np II has twice the diameter and twice the length of I. If I has resistancy i:x*z0re )t) c4nuwp5) ww ved48dr gz6sr/ee 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 t /a gih. *,/1klp0fd6siuvkj whe diameter and half the length of wire X. If wire X has a resistance of i*,k.wskp6di1l/g/ajhu v 0f 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 length L and radius r. Thzh 4i lm5;undxtyq;.9is piece of material is then drawn so that it is.tyzim 9;5 4ln;xqudh a cylinder with new length 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 lighwgrs.w5v pgwp8x;+yc:f3e; f t bulb. He decides to modify the filament. How should the filament of a lip5v;e3.p:8rwsxc fy ;w gw+g fghtbulb 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 resi0a7r ( ,ie, z-chyshjr bart-.stors are made of the same material. The length and j- (ib-ers7,c hzh rt,yar0a.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, are connected to vs2kodi-(0 no 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 fourt2-ono k0d sv(ih 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 di4(hocxqe:h lc4c*,/zcz 2 gt;k1xmsv agram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter readi:cxo cg, k4he h2;( l1z*x4zscvcm/qtng 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 three bulbs 1,8c*wfsj kp8 5ga2f .:3zgsrjp 2, and 3 - represented as resisj 2g*s:fca53 8rf.g8 pkjzswp tors 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 current in axy.lfs d-mo-3ll three resistors x-ls3f o .dm-yis 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 represents by2kkvq 3 3e( eiefh.6a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs) 3(k .bvy26qh3eekife
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 i+x 2txr6 ep0wss NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equa0pr 2 +exwsx6tl 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 2el504o em8 hlo3,8eh qgkhpa 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 oth35 hge4 o e8hek8amh0,qolp l2er 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 resism3 f6 fupp+sxn b6,us,tor in 5 b6fu,3npxm+s6 us,p f seconds once 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 ty;s))wlh8(u17 6g tr q+ pwwkoz*rvmshe following simple circuit have the same resistance, which woulduwk 1wy(w7s *)m+p )86zts rhvlgr;qo 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 through the dol*,n0rb 0a. heysd+:pr) lr6.0 Ω resistor is 1.0 A. W+ d0e0 .*srlray,b:rnpohl d)hat 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 R1, R2, and R3 are connected in series to a battery. Supp44 *wwfp vjcn1ose R1 carries a current of 2.0 A, R2 has a resis4jwwv 4fp1nc*tance 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 and6cnq;q8* 5fokpc08w tno 7x -nou*tktR3 are connected in parallel to a batteryqo 8 8n-7fx;*u otc0otk56*pn ktcnqw. Suppose 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 volts. Wh () lqlulf 1m2h5cg9cpat is the maximum value of the cur)h c(1gcfl5l umq29lprent 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 .bhbbw.g .2 a :wf4r2osz-cvh at 120 shwzarvh.f b-4ow2.cg :b.2 b volts?

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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 thaud+*t a l7j)up7 bkb-jt is dissipating 36 watts o 7b juu+ljt)a*bp d7-kf 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 volt, 600 watt.” Iygii300e)7: rcclvn en nor ir0ccey )vng3l7e:i 0mal 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 rezby;a7 d iv5e/)t6u sftk;: qzsistances could NOT be produced by a circuit containing only three ident/it )qyeu;5f ab;vszz7 ktd6:ical 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. Whio/z9r3gnqzy2h /f)w (p sl;zoch of the following equivalent resistances CANNOT be produced usi )hy(o9;/s /zznzp wolrf2q 3gng 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 resistoryv 8jrx++lme qa74dfmi/* , sqs of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be pr 8x7i qvamq+l /*4md jy,frse+oduced?

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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 isw3, rbv8i;yih connected to a battery, a 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 the internal resistance of the batri3 v ,b8whyi;tery 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 resis 7 n9mo+wghcfjw+.en07*n lugtance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correctnjf 0un9w+ *h.gcm e7wgonl+7 ?

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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 has a resistance of i/5t7nh m8dfq07it v7e0,y (tpwbe ec12Ω when operating at 120 volts. What is the minimum amount of timcf77i078 wht,idevbnmy/ 5(q0 ep tet e 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 dissipatib2,yju)sr om(d - a*xt1jok(vng 36 wattsxtm2y1d ( k* -s,(j)oaurvbj o of 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 amperes of current when connected to 120 volt0rtmmd9h8 9rjfq d) 6us. If the price of eletj m8dd6r99m0 u)fh qrctricity 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 100W3/9*:hzfb t d oizr3ic lightbulb lit continuously for 1 year at a rate hicit/f *3 :9oz3 dbrzof $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 lightbulb results in a power of0f3r/k ws)pf e 24.0 W ffke3s/ rpw0)associated 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 fam6kclybdb6 z3;ily of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single bbkld ;z6y3c6 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 connecxmm7;+, ona2sxd 0knpted to four resistors to form a simple circuit as shown to sa p,x7 n 0om+mdx2n;kthe 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 iska42a bs3fpt:kl-qwk-qg4r/ connected to four resistors to form a simple circuit as shown to tb4kkaq-gq:t k3 rfw ap 4sl2-/he 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, anbgzx2*b)7yvr4mp ej 4v2f xw7c -amx 5 ideal ammeter, a switch and three resistors are connected as shown. mz74xv* 542 b-wbxfcya7 j2 emp)rgv xWith 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 ammeter, a switchn jysf.z+1nmsf3z 8 *qfj33a r and three resistors are connected am z3f.f1sq3+jsajzyn8r n f*3s 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 idea jwopz.0x5n/al ammeter, a switch and three resistors are connected as shown. With the switch open as shax znj0.5wpo/ own 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 ;ukjb18.pfej is the equivalent resistance? Assume that all wires are ideal bf ukj;jpe81., the battery has 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 the circui,yd *o7 tp xjubh38yn+4 i.ddat shown to the right with resi ,yp3x+ ddtdouj*8 an7b.i yh4stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connea4bh8*t a.m ldubf afyoc/82-cted in a combination series and parallel circuit to a volta-t 8cfm2fa8a .4hulobyb *ad/ge 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 con 6 2omqe(:ujg1 0aporhnected in a combination series and paamog jpoqe2h1 r 0u6(:rallel 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 th c )njjpud 7jdid782n9e bulbs are identical. Which bulb will be the bright judp)dnd2j7 9nc7j8i est?


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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 resist aohdiofz 3;, +ok.du;t9pi0pors are connected o,k;fop iui.opdt+9 30dz h a;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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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 vz ze*ejzzen29xjjzdcff..9+4 /: gs are connected as shown. With the switch open asvz4je9zj c +nf.dzz/f 2s.xz9 g:ej*e 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 two6(l+e7l ihvgh5vv )hree resistors are connected as shown. With the swit7hoh)6 (vvi e5v w+gllch 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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    总分:50分 及格:30分 时间:不限时
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