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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 hejfda)6ej-.v+22yljco h t 0exists in the metal resistor connected to the battery. Which one of a y6+2tl jj hd -jveh)foc2e0.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 in parallel, thk(y nui)1r8bf e_________each resistor is the snrfku)b i1( y8ame.

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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 p+u8)p lr*yfhlightbulb causes the filament to become white hot,r pl*)+8yph fu 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 being replaced with LEDg uxoixcjj-)y:6n v 3*s. LED is the acronym for which one of the following choi :g nuoxc-* i3j6)jvyxces?

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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 o7n*txnrsxz :ho6)of;p438gd qsy6e 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 is the ratio of the new resistivity to the old6gysq8o 7x4 ;3n6exhn*drf zt)p soo: 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 oh -;obvn1;*3 h.sbr kil7nkvof the same material. Wire II has twice the diameter and twice the lenh*vl k-. ;1vbns 3ok no;7hibrgth 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)igagf. fhz )b -b5gv- has twice the diameter and half the length of wire X. ).b- z5-b)giaghfvgf If wire X has a resistance 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 length L and radius r. *xy/)(kgb4y s2(hxavu y m vn*This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to thhumv yay2/x4s g *((xbkv)n*ye 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 decidd; .ynj5m jciy9amllwj u/(0:es to modify the filament. How should the filamen.ujmn:/5dwmyia c ( jll;9jy0t 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. T4wz3 j, pp:+0rtqb zvrhe length and radius of each resistor i:rzpjp+v wzq3,br4t0 s:
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 connectedxcn 5y0qtd(mye8 iv )+ to a battery in the following way: “Two resistors are connectey v8tn(5m+q0 dyx) iced 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 rqp .5at ,dm.pkesistance 10.0 kW and5km papt. d,q. the ammeter has internal 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 right. The three bulbstw3tqosxc:hwqz( 0 )en 4l,5e 1, 2, and 3 - represented as resistors in the diagra:n0s(3z e4owwq)q5e ,c xhttlm
- 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 circhwwrg0lv 2 );tuit at the right. If the current in all threr hg v0tw2)wl;e resistors 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 sik 8sqsy 40 ;n,1yvkgznmple electric circuit composed of 5 identical li n0kq8zgsy4 v ,yk;s1nght 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 fonc65nb 4c,tio*x.oa i4; -mpfi5ovv bllowing statements is NOT true concerning the simple circuit shown where resistb6ic*nx n,; c-foi54pmob .5vt4avoiors 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 a9i73 l5m wpjtekxhpa c.e8 );w battery. Bulb X is bri)h t7xaiemcw3lw 89 k5 .jep;pghter than 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 idenzdo fouc0j,da)1y:i;pbs9 4r tified resistor in 5 secondso9ziys)b:1d,4 ;ocu d jrp0a f 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 th-5i0tc:i43t huxub cpe following simple circuit have the same resistance, which would dissipi5:t3ht p- cibu u04cxate 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 cir7n w+2ef*ewv.uk: jqul +o ;ljcuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the powev ue+f k2 jqe +o:nwwjl.*;7lur 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, an )ukhr7fmh5*v4p jg s2d R3 are connected in series to a battery. Suppose R1 carries a current of 2.p gk7s4f*mj uhv2)r5h0 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 resisnyu82hmnh5;nyr l -(qtors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Wha l5;rqmnn 8h hyy(2-unt 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. What is the maximumfvh c6y -yg5nqp;3 0ux value of the current under these cofy;x p n5vy3 cg-60huqnditions?

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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 reezfo2bpoz +1t)lh 8uqep3 k+9sistance of a 60 watt lightbulb designed to operate at 120 pl)k2pb toqfz 3 u8o+h1ez9e+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 f 4 1hjw zkf(txa8k33keqag 1h.lows through a 4 ohm resistor that is dissipating 36 watts of powwk.4 q1 3jgk3zah18(akftx eher?

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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 pz.qgbk3mj :8 lress clothes is marked "120 volt, 600 watt.” In normal usej :.3qbmzglk8 , 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 follawlqi +kpreeh;ws/ r8( rn,jo0 sj+++owing resistances could NOT be produced by a circuit containing only pkr+jea( e,n/0r++ sr8w ow;s+h i jlqthree 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;ug( yl2bye4f following equivalent resistances CA24yyf u(lbeg ;NNOT 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 can be connected together a 7ocbrl39. qqv c;qwdl)a/t4 in different configurations. If all three resistors are used in a circuit, how maq qlavwc3dq4)7cbo .r;t9/la ny 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 connecteuy1phev* 1p4fd to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in auyv e1*f41php 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 resis n ;,pt3tbcrfoaef2elz( 45f-tance R1 and R2, are connected in parallel, the equivalent resistance of the combination i ,netz -c3t25 b4fe(rlfao ;pfs 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 dj, 3t jp10/z;nxhlmpoesigned such that it has a resistance of 12Ω when operating at 12,m1t0p/x z jh ln;3pjo0 volts. 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 currex -pawwyk.,r -wkg:)lnt flows through a 4 ohm resistor that is dissipating 36 watts opg. rwky aw-k)x,l -w:f 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 13cp4v hea/ 3mm( (jfo8z amperes of current when connected to 120 volts. If the price of electrichce /a( m8zfv 3mo4jp(ity 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 qf/b;ur05c*b :decn wj8 pse/ a 100W lightbulb lit continuously for 1 year at a r/nb0fu*:5eps qbdw8/cr; ecjate 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 4.00 A through a lightbulb red77kc fsm)sv -sults in a power of 24.0 W assocds 7)m ks7v-fciated 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 e 8 7xllupiim;6i; d(pof six 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 max7i(;pp i i6;8eudlm xlimum 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*:t p,btttzhu 69hwe .y hgy4; connected to four resistors to form a simple circuit as shown to the right:yy th*6u4t9 hhgp,;tzb.e wt .
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 resistors to form a simple cd htm9 ne.y uy*j95nz8ircuit as shown to the retmdz8. nnj*y 9h5 9yuight.
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 x+n/-vtm+z,i7ej1) sb kj nym zoms8/ammeter, a switch and three resistors are connectedz n8s7j-yk/j+ mbvoz+1 tm/e xi,m)sn 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, an ideal ammeter, a switc+n(ucpvub9 m-ix b.m +h and three resistors are connected as shown. With th+b+nbxvpc-.ui u9m ( me 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 ideal ag-r chy1 d3lw w2xrc,7mmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagrx73rh 1c ,cr gyw2d-lwam 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;9 we;i4aaufl+ygbm , shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three r fwaam;49y i+uegb ,l;esistors 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 circuit shown bta,rz b(6n:j)xw9a g to the right with resistancestz9xawb a)r gbn(j6 :, $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 s-slkt2f.3zez2 ) nam thows five identical resistors connected in a combination series and parallel circuit to m.)-tztas22nl e3kf za 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 in tpa cin6cy,rr +d+f *0wf8ui l xvo--4a combination series and parallel circuit to a voltage so 4x+y,- td+wlp-uro6 f8rif0nc v*ciaurce.
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, +vuk3p8oq x *o all of the bulbs are identical. Which bulb will u p+ *v3ooxq8kbe 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 n*vsvoil 86v)d9i+v s ammeter, a switch and three resistors are connected as shown. With the sv+ vons69 *lvi8 sidv)witch 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 ammemr*r2w, q2ta rzwc xcz5uut r/149cx:ter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 rcx5 a1qrrz*2,2tu/rmc:4w u zxw c9tamperes.
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,p+85ax utikab*b.hb* ;9 t+ dmefo*em an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amm8buf+bit*o5 .p*a9d e+b e*mt ;akxhm eter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


参考答案:    
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