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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 metufb 9,;5fy*(pytlsi ,ru pj8ial resistor connected to 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 ty*ybl,f tiu9f85ps ji r,(;pu hrough 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, th389ayfrvdk h f+p n6z/e_________each resistor is the samzay+n9dr p8h 6kv3 /ffe.

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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 lighpa)n hg9v +8i(fivhg; (p2b petbulb causes the filament to become white hot, while the larger wires connected to the lightbulbvbh nie2vpp+p)g (9 f;i8ha(g 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 hb16 (ihay5 wnaezf4so )k. ht5ousehold lights are being replaced with LEDs. LED is the acronym for which on(zh6iwe54at y s.fakb hn5o1) e 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 resistor has length L and cross-soil4ogh;i1twsqa2 8kz 10+yk ectional area A. It is to be placed into a ci 28kyo z40ig lt k;iwoh11qa+srcuit, 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 matejl 02f*vws b:erial. Wire II has twice the diameter and twicebl02f *vs we:j the length 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 has twice the diamescr ( tur4e9:a5w(qa eter and half the length of wire X. If wire qw t9(5ra(use ra ce:4X 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 ratk4xk ,4o * p //:vhs2rwjsorrdius r. This piece of material is then drawn soo4vrw:/ktr/ h p2*r, xo4 jkss that it is 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-hfyrt794) a5siwlz d1ny ;lrkl j3.o Edison wants to make a brighter light bulb. He decides to modify the filament. How sho.ry 39nfrw-5j7d ly4i o zhlst )l1;akuld 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 cylindrc8rvz 4o/cdccuh8 v0*)x ,ft qical resistors are made of the same material. The length and radius of each resistoc/tc0ovv z 8cf8c )dhq*u, 4rxr 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 7(qgh- cnd- tild9ez f;.guy) of resistance 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 fog9y7 -gnzlqu(f)- .dched i;turth 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 0z9mkfwym4d9resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The am90 k4fzwm9m dymeter 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 cm3zogwdcvp:4ji y e2 k zh 0b08pe)*y(ompound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the dia :p*hedc3 wmo8v2)yz(i04be pg zykj0gram
- 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 elect w c2-f kuy,kd7nlxa5(rical circuit at the right. If the current in all thr(2 -x kw5ydf7 kc,anulee 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 rightzq9dkik)-og-f/n / y d represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cd / 9do gkk)yqfn/-z-iells. 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 s( 3g97sienw k0dor7uxtatements is NOT true concerning the simple circuit shown where esk wn7 (i3du07o9 gxrresistors 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 battery. Bulblj2vhp mmj 7qip-1izp -n/c95q a.m65p9rlmy X is brighter than bulb i lmp2r man9- 1v9c5jj5- 6i7mqympp /zlh.q pY. 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 pas)wp t u9r:twf6;p5pyts through the identified resistor in 5 p6u5) ytwtrp;p:t9w fseconds 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 the folln* vd.59ttxti 7fwl-j owing simple circuit have the samedx.j*9tw5tlv tn if-7 resistance, 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 accomp(sj qja:taq p9 qo)0)qkani0r b3ab05anying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V? a) i9 nt( 0s j5braqaq)qb0k 3:aoj0qp


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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,p,mpklks uj (cw(/ge2 (* xus: R2, and R3 are connected in series to a battery. Suppose R1 carrie2s:gu, pm s *k((jpcw/lu(k xes 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 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 par+.jak yq 7-dwjallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 7a-wd jky+j .q6 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 vo dmlcj hkl.13 x*e*(bxlts. What is the maximum value of the cur cd*.lem(hjlbx x1k* 3rent 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 operateb 2m1/2 xgs uiubcv ,u:t8x-xr at 120 volt : xri2uuvcb2m1x ,xt/g8b-uss?

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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 36utp (v6:a arnn.+9rmr watts of ( pu 9v+matr:rra n.n6power?

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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.” sdwdl//f3e ou ;blv+0e70z wxIn normal use, th0/us +3dvw beow d 7l/lf0;xzee 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 produced by a circuit comh6ba/lk2x;dmy8 30o dt bp9ontamxm0bo a 3kh2odydt;/69 l8bp ining 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 resisftlr.1 a 16s(lewvk.o-dt5nef-re; b tors. Which of the following equivalent resistances CANNOT bee;of rln r .ew6ka1f(d-b5 tt1svle-. 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 *-euik0u xh+ wwqu :1ttogether in different configurations. If all three res-+u wtk*iuxw1u eq:h0 istors are used 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 resohmtt(ys( rcb + ud7:+istor is 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 r(rb 7yt+dm(hsut c+o :esistance 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 r9m1r pkec +s8hesistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances ickp+rh19 em s8s 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 that it has a resistance of 12Ω when oper4b,2c xx -++ea)fxwnbx gc2t;8yloz t ating at 120 volts. What is the minimum amount of time that it would take to warm z-bt;8),yw accfto +b x2+gnxe4xxl20.45 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 flow.:xiax++/ , xtbhprryp7h*h m s through a 4 ohm resistor that is dissipating 36 watts of hxrrih x/p,m.+b7y xh*: a+p tpower?

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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 co/v+d.zy atiuv9lf m/ 5nnected to 120 volts. If the price of 9tlzfv+vdi.a/m y5u /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 cosr-8:gv xkj .-u 0zpcwch (b6nnt to keep a 100W lightbulb lit continuously c6b-nz8j:0 w(k xhp. gn- uvcrfor 1 year 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 4.00 A through a lightbulb results in a power ofk ih0 0,yr0ri9i3wxv s 24.0 W associated with the bulb. Which 9kxr30iv0 y,0 wshiirone 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 six owns a computer e9t-vfx wium3tu b2: ;ylmj04rated at 500 watts in a 120 V circuit. If all computers are plugged ub03wyji u : 9m-t4;2fev lxmtinto 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 connected to four rex9 tjbk mu1lqa2w01 9lsistors to form a simple circuit as shown to the riw2bmq a99t lj1kx1u0lght.
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 connected1pka ).1d k 8hp4zjjvr to four resistors to form a simple circuit as shown to the rikdzvrj4 1ka18jhp).p ght.
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, anv2 42 bomeuw;m ideal ammeter, a switch and three resistors are connected as shown. Wi;uvbm w mo24e2th 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 ammet i) h0 mysz s.i+xxzjds3*u:m:er, a switch and three resistors are connected as shown. With the switch open as shown in the diagramx *ss:.+)0iy:mmh 3dizj u sxz 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 5ff ;opmm93j0 hbbs8 tthree resistors are connected as shown. With the switch open as shown in the dmom ;b5jb0 3 t9hf8sfpiagram 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 sm 0p*av88ry.q-ci iwshown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no intern -0ii*yw8mc a8rpvs q.al 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 resistany 4d (dkfl(gi fz )ee6)i)ujaf5bng90ce of the circuit shown to the right with resistance i d)g5(bfel)jd i46(azk)ug0 ye9fnfs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 bem9a wzo7 yzc39low shows five identical resistors connected in a combination series and parallel circuit t99c w7zz mo3yao 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 belomm/9i z(t9 dlfvw;j10e q t+ucw shows five identical resistors connected in a combination series and parallel circ/m;0cvqtw1 9mz u9e+dj f(ltiuit 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 bl z ;hwffz9 i/,qvf0mqs)s.b 1ulbs are identical. Which bulb wb .qv) zm l1w f/f9;0h,szifqsill 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 resin9um6dubr :c3 stors are connected as shown. :bd nr6 mcu39uWith 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 conwbs j:(t plg-iev7 .,:uwe0hf nected as shown. With the switch open as shown s(pivgt. 0w7uwhej lb :e,f-: 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 iol:4h oh:v. so-a zh6 hbm;f+wdeal ammeter, a switch and three resistors are connected as shown. With the switch owzsobh4hlfv;+ 6 h :.-moo:ha pen 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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