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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 electrlgl1x*3 f)iu pic current exists in the metal resistor connected to the battery. Which one of the following choicesl1g*l3ifp xu) 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_________epr yvqsf7z7mrccqd ::-)5yq bd j (2m4ach resistor is the d54cj:(qmc vp yf 7br-:)sr 2yz7m qdqsame.

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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 , ) lpq.xrvj(hxz v5:sqy6y8obulb causes the filament to jysp:5xlvy8r. x,q)qhov z(6become white hot, while the larger wires 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 bei* z wg4 4kvn/(.,h16y:kf w6y qnw;syv usxueyng replaced with LEDs. LED is the acronym for which one of the follow*:4gwvh64y1wfs qzey.yku wkn/(y x6,v u; nsing 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 hari(wc+*f 9 jqrgzp+w 9 k3tiu(s 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 is the ratio of the new resistivity to the old resisti(zfjk(9 rq gr*+ui+w9tc3 pw ivity 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. Wig umspa-w6+tx5rkcfc (8 . 3vore II has twice the diameter and twice the length of I. If I has resistance R, II has resistance3 mkt58a-frcu wg(+ .pcoxs6v

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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 bb;g/(.-kc5po u lxd36m/yfgo:guqscut has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y wc g5;dmq3ox :spg g/(kuo.u b-flyc6/ould 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. This 9o ndf8zgt.d/ piece of material is then drawn so that it is a cylinder with new length 2L. What happens to thot/dfn. 8 z9dge 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 aw)qu/k :jpm w0 brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more ligwq kum j0:w)p/ht 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 cylindricp7( aq ytxbp9 .ub4pp -lc4v4ral resistors are made of the same material. The length and radius of eacv y- bu(tpb c4 47x.ppp9qa4rlh 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 connev w4ya3r.nemu4 4m:ojo2d z(ected to a battery in the following way: “Two resistors are connected in series. This combination ov4 .zm oodu 2(e:m3r4y4najwef 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 diagob w*lk+ j h8;)c/0wt-baonfed+e8 moram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading kbho0ej- 8 + a ;o8lbn/*wf+) tdomwceis 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 thrcfe:rgo-m590s-y ypv ee bulbs 1, 2, and 3 - represented acsf:-yeyp o-m 5gr90v s resistors 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 currey,: nnvirtiz 90g ,-hemyx4 n1i,b,xgnt in all three resi-n hi ,gyv0 t9x,big14enx,nzy ir ,m:stors 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 right represents a simple electric circuit cmk +(8g*crlevr1lh xl p s8,)uomposed of 5 identgx,llmrev rps+() 1l*hcuk88ical light bulbs and 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 statements 4 w)zji hdn:u6ee qa3 w-6:f:sz;c wvuc8zch) is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 arwj;fq -h3vz 6w c6cn :di)cu :8u:ze )she4wzae 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 connectp wex,d:lw7h* dup+:+;r qnmned in series to a battery. Bulb X is brighter than bulb Y. Assume all wqdnp e*h:+wxr;l+mu,7 :d np 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 wills,37(6dwubwkpvv9 agpt6 w ,q pass through the identified resistor in 5 seconds once the circuit was clos6qd3bgw,v9 s , ww67vppuatk(ed?


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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 circuit h)msgnzcq- /3ktsxy81ave the same resistance, which wn- 8tqx3s/sz yk1c)mg ould 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 throug( ::s/o+:a8c t kldoifzizmp2h the 6.0 Ω resistor isit:soa:l dpczz (m/+8o2i k:f 1.0 A. What 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 i 1x(rza0e +c.,rbu lkdg d/c8mte4r,an series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is the voltage1emrr z04/a b(daul g,e, dr cc+.tk8x 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 toiaf- j*wm:(ay a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current (j y*wa m:-ifain 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 . ki,fu 9dzjgccb) u.+8kr+tqpfz 5z1 is rated 1200 watts and 120 volts. What is the maximum value of the cz.t8zkukc+ .z)rpqcjdg u5 +19f f, biurrent 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 resist/ l h*qym*o;fmance of a 60 watt lightbulb designed to operate at 120 voltsmq ;l fo**h/ym?

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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 that is dizq fc hrh 0908gy5ab ;e+q:(lq6lr:ujoojk q-ssipating 36 wattukjhoceglya;0:-+olq q0 f:j5(hr 96z qbqr8s 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 clotpf.a c 0jpw8h5hes is marked "120 volt, 600 watt.” In normal use, the currenp08ph.ja 5fwct 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 coul2ejc.+zd p z7yd NOT be produced by a circuit containing only three identical 62zy+z d7.cjpe Ω 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.z/ lr 8qxu (dvrn6zt1:0 Ω resistors. Which of the following equivalent resist6 8rn(x1/r zt:lqz vudances CANNOT be produced 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 r1l*b-w*a)v bek-c;kqwwk ;y can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resaw;;e - *wkl1)ycv b-*wrkq bkistance 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 power P isir9du-e32ih-ndk j +v3 ;s kyx dissipated in the circuit. How much total power is dissipated in a circuit if n identical resii3rh9d;-ki2 k3uex +ys-vn jdstors 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, havf5)j uu+ j0ubx/q,hknvo* ob9ing resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements )qnxjuf o/bv*90,h jko+u5u babout 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 desigqr-1 3jn6gyw*f fzbk6ned such that it has a resistance of 12Ω when operating at 120 volts. 6yrq* zw63 gfnj-kf1bWhat 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 current flows through a 4 ohm resistor that is dissipating 36/ (ug auan8m.uz.z i(j watts j 8gza /znu(ua(..m uiof 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 heat5+eyq 91:xg w+pgdt*:a hubhber draws 13 amperes of current when connected to 120 volts. If the price of electr *h+aw h:e:b upq+gyx95 gtdb1icity 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 lit continuo- 7+1bska gvj( z9hly6qa pd6lusly for 1 year a1-6 6yblzphj +97vqdgak(sl 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 current of 4. uq g/gr+-ji9fh,/ oxh00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best reprehrjg/9gu/-h oxi+ q, fsents 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,06d a m/hur+ tsa1 fth/ax(kk owns a computer rated at 500 watts in a 120 V circux da0,k as6//hhamrt(fkt1+uit. If 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 con5hzjf:unw3 4u j z-9bhnected to four resistors to form a simple circuit as shown to the r4z93hunh - f 5ubjjwz:ight.
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 resism6zr g.to,a:( fcxeq4u x lh00tors to form a simple circuit as shacx ,m40hx got e6qf0:r.(lzu own 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 a(, j/bs 8u.x g0jq5zyttalyg3 mmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram thq.tb5atjlgsgxz0j 8(u /,y y 3e 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 twq/nmic vw*2kji803 vhree resistors are connected as shown. With the switch open as shown in the diagram 80 /2v3jqivcikm*w wnthe 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 resi. j*v d3eq8b)cphcx;n stors are connected as shown. With tc; eqj38xbc.pn) h vd*he 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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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, whatna;3,q5x xxfd l7;ik v is the equivalent resistance? Assume that all wirei,dfxax;;vkl 73nxq 5s are ideal, 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 equivalencqsqy8x8 93 2u xqoek8t resistance of the circuit shown to the right with resistancck q xu2oeqxyqs39888 es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ident * z0:-6duamgiz r;tnaical resistors connected in a combination series ugm zdntz -:r ia0a6;*and parallel circuit 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 res4 5s+x-j; e o sptn(+muqkd b1shl-iw8istors connected in a combination series and parallel circui-kxl- sqmod8 1sjnu5(twh ieb ; +s+4pt 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 dia* l 29xgah+zkvgram, all of the bulbs are identical. Which bulb hagz+lx9 *kv2 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 ammetz 3(8nkxfr7pzgyr 8v3q2 mn i4er, a switch and three resistors are connected as shown. With the switch open as sm 7rg8z3izxk4qfn82(rv y np3hown 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 ammey kbjdu2;mm,- ter, a switch and three resistors are connected as shown. With the switch open as sho;2, mmbyjku -dwn 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 re w+i tqir9*i;b1tsur. si pm23sistors are connected as shown. With the switch open as shown i ims3r i*i s9utt+ pwir2.1qb;n 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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