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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 exists in the metalir wya1sjg 7f66p;1u h resistor connected to the battery. Which one of 1;i j6sgaypufw6 h 71rthe 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, the_________each res8jbftl64op qch *q xhyi4(d+/iso6hl p/i 4 fdxc4 b+tq*(jqh8ytor 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 caus6xallbn2j o(j9 -v8 hres the filament to become white hot, ll 8vxna 2(rh 9-6bjjowhile 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 replaczougvm9gx3j- 30mg -red with LEDs. LED is the acronym f9-mxm j3 ougzg 03v-rgor which 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 resistxqp a 2i(zg,; 9vie2poor 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 thv ,;2g e(qpa9ip2 xzoie 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. Wic mro l08*ji/gre II has twice the diameter and twice the length of I. If I has res j*oimlg/r c80istance 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 halteq40(ta z2vj6d*5 uizqln mxn1:p k(y; rf1j f the length of wire X. If wire X has a resistance of R thx 6(fqkqpjm(*ni 5e t1 ;04l 2yduvjzn1ra z:ten 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 ra; mi 5;)scjuerdius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistanms eujri5; ;)cce 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 wakn+k7u1( k qd( ipq/isnts to make a 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 mo7npik u1q+ (/ki( qskdre 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 oet1h2mn6k/aur() j) u:ouh gof the same material. The length and radius of each resug6o:j (nr) emuh/ot 1u)2kahistor 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 res*eknhg 4 by:n9istance 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 fourte:9kgh nb y4*nh 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 interna /+: l:up9vzvi:g 3pggpet 5kfl resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA9:g:if g3+5up/lek:tvv p zpg. 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 comp*8vb1jwcba7n ( fatr 6q .xs1aound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors ivxaw7fs1b.*j t 6 car18(qanbn 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 rij f cm 3j:zz40ya82picght. If the current in all tf j84pc30zmiycz2 aj:hree 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 simple electrir-r4t o(9;c rz *6f6uewdeokic circuit composed of 5 identical lighodw9i;4r c e( *fret-uzo k66rt 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 is NOT truhsd 3sv )n)n0l. .u-.flvfv,6 cwvmss e concerning the simple circuit shown where resistors R1, R2 and,hwn-n.s.l vfuv 0dmf6sssvcl. )3)v 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 battery. Bulb X is brl: wr, :wce9zxzzpaey530m 2 mighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other 0: ,cz:2yel5pxmer9w3wmzz a 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 id:ys;7v gt;;u3*0v c y0nukq 7yqlttouentified resistor in 5 secon7qvsy3;*o ;ut:y 0vct7qn0g;t yuukl ds 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 i y 2y.q1w1k-m k/yzsb*bym3ml n the following simple circuit have the same re31 ym- *qw ym kly/b.zks1m2bysistance, 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 accompx 8jjuxkgrxr,7-2e;be.* r 34drn yjxanying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the7u re8n. rr3x;jxxj4ye-*x2gdrb kj, 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 kmb4l:rgxm/ qt2. g; e,h nj:uto 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 voltage ::2,gqh .bet 4/lrgm;kx mn ujacross 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 fb ceadt8**/wdgy* x6battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 diss/ at8*xd*d* ygwe6b cfipates 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 volt/( + iu ply8e+js)xf7qbgs:+2xlddav s. What is the maximum value of the current underd7g x8ipsbu a 2d:)+(vsfqylej+x l+/ 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 resisg. f1q 2kyjrrap,zo+; tance of a 60 watt lightbulb designed to operate at 120 voloa fpj+ .ykqz2;1 rr,gts?

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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 dissipating 3z7 l3pipl9 i3jyls. q8 a+gr.v6 watts of p r9jsvpa.3zigq 3iy8 l7l.p+l ower?

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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 volto lu6s8ae9wpbq4)de5a ,o q 3n, 600 watt.” In normal use, thu4 sobeaq39n l )pa8q ,5owd6ee 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 p 6i.fv zg+b(b ff26almroduced by a circuit containinivb+6 f g6m(.abffz2lg 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 resis(yfxb9x6 og 4t2k/ zvdtors. Which of the following equivalent resistances CANNOT fx4kz xogybt6/ 2 v(d9be 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 connectezu dfs vn-s.*)+ ozbm:d together in different configurations. If all three resistors are usezu *dv.f+)zo-b sn:smd in a circuit, how many 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 connected to a battery, a total pow;gs8q odae:i+ bl7h-4 2s gevder P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors ar:i; 47 g2eq8e gdh+-dlos asbve 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 c zeyf:6ie2q+ 1l7:ngmnpejp(9brp 8d onnected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances isdq:e fy9r g i6+e(jp87mnpenpb:z l21 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 designe t houp*w;w7a;d such that it has a resistance of 12Ω when operating at 120 volts. What u*op7t ;hwa ;wis 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 ohaz+w-eqpn/u(;4s e yem resistor that is dissipating 36 watts oep4u ( nsae-zwe yq;/+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 13 amperes of currenb/ r + q4axs9s)ne*ehjt when connected to 120 volts. If the pricane r/x hej+4ss *9)qbe 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 it7qg jt6/u g)jpa)th+s cost to keep a 100W lightbulb lit continuously for 1 year at a rate ofuhs gpjt) )+qj7/6tag $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 ligwnum ub ,zv)5 ..ydr*bhtbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the rb w)y* 5dubvz..umnr,esistance 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 owns a rq7bbmx27 mn .x ,2aqwcomputer 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 maximum number of the compute . 7anm,7bqxr2mw2xb qrs 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 a simpler(..pdttajr rk. 3x) e circuit as shown to th(a.t3rkr red).j p.xte 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 four resistor/r. i uy4j;/kici psnw6iow) k-tu 0e8s to form a simple circuit as shown to8 t/c;irj4/un.k)wo 0kw-e iuys6i pi 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, a switch and thrue0xp9l w5+yri5 xo :zp0cuc)ee resistors are connected as shown. With ) :pxiu5 c9 0+r0ucw5lp ezoxythe 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 switch and tq9 i* yj6eqjber je1)1hree resistors are connected as shown. With the switch o y9q61)1be*jie ejqjrpen 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 ammeter, a switch and three resistors arkjt8 fde1 .3pke connected as shownk j1tdf3k. 8pe. With the 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 r z.2ojx b)mjtun zt901ight, what is the equivalent resistance? Assume that all wires are ideal, the bztnj 1 ujoz9x.m 20)tbattery 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 thd j.g5e 2+fyj+ut1h*ugnqt(ke circuit shown to the right with resis+nhu2gqgk fe5( jt1 utd+jy*.tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 f27i fsjyv+rx-:q) qrnive identical resistors connected in a combination ser2jr fnqv 7is)y+xqr :-ies 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 resistors connec+ o o8og t1x6wjieml),ted in a combinatilowio8e16m)xt ,+g ojon series and parallel 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 circ/thsi0 hzvi 3;al:c3hscl78g uit diagram, all of the bulbs are identical. Which bulb will be the brightesa3s 0lcsi 78 htgzi;l/3vhc h:t?


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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 resistors 2 m-1fcxikq :5b o8tbvare connbmc2tfq 8: v1ixo 5bk-ected 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 are +f p:,l;5pr6 kypnty; (,ipkpfy3ar/su;sy wconnected as shown. With the switch open as shown in the diagrap+ k(nr aky,fi/;:5r;t3ypy f p6,puspw;lsym 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 andx rpi:q)3rlmh1gk9 ;x h+ lg0u three resistors are connected as shorg xx3 mllh)0 :+; pqri1h9ukgwn. With the 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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    总分:50分 及格:30分 时间:不限时
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