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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 exyjamd6b..h2o ui24 nk tgb-() xiu) atists in the metal resistor connected to the battery. Which one of the -i(nx6.u 2 d)a2gb y4jobt)htik am.ufollowing 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, the7rza*i 4hzzc/sn : i colck3+v ;.q1dn_________each resistor is the sa vz1knc4hz ; zc dcsq7+i lnai/*:3ro.me.

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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 t:-mnn)/tx6p-ttf jqvjql v; .he thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becaus/vttp)-xnfj m.nql 6q -jt;:v e

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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 LEDs. LED is the8+syndmt 0: u b4.qsod acronym for which one of the dsb4 :sm80qydo+ .un tfollowing 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 andwntiz9jpg/ : ; cross-sectional area A. It is to be pz:t /ip;9nj gwlaced 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 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 b-2puvxu x dv (d1n03nof the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has reuvxnb( n3up2 dd10vx -sistance

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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 t6*: lemh gr.aow5t zpd6z( rw*jtla70he diameter and half the lengtw6dzl65 trelz(j7p ha:.*g0 rtwma*o h of wire X. 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 lengthk 8k9r) 1 ykbtrbb/sa1 L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of thk9k)b 1r k/ry18ab stbis 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 brig 5e(gzlv ot9i8hter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lo 8z5l(i vteg9ightbulb 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. The lengln *,s,gk rr9+*qsuzai1eq 7w th and radius of each re7r, *a, wqg+enlzr9uisq s *1ksistor 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, arekedj6/ qn+w2 z.-hg yk connected to a battery in the fo 6+h.2/kjn- dzkeqywgllowing 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 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 g6e5o8;xru ( h+*a:xpvsjnawh ig7a 1has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. a o1jh(x8xs6wn ga g 7*: uav;ie5rhp+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 rig *h no2pjkssll2+,s 1u(cn z9cht. The three bulbs 1, 2, and 3 - represented as resistors in thklsc ,z(jn*19un2l2h ocs s+pe 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 thq c5-w+ s.ij eks83cvbe current in all three resistors is equal, which of the following statements ej b3-vwcki.c5ss 8+q 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 composev5cqo7y,m 5)ur( ha uxs(ht-yn y h5,md of 5 identical light bulbs and 2 flashlight cells. Which bulb axy ,h5rhy uc m7( u-)(y5 ,sq5vnotmh(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 true concerning the lj qsp/ er39i4simple circuit shown whep/9 jiqs3l e4rre resistors 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. Bulb X is 1h+8fg(fiha y brighter 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 repreg+i8h f(h y1afsents 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 ixhjvkmc8u 1,z/ac)( gz 5d pe-dentified resistor in 5 seconds once the circuit was hmd ucae8g,vj-z)kx(/5 1zcp 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 resistoedj6wlzl v 7c5 -n2y;prs in the following simple circuit have the same resistance, which would dissipate the greatestpwj-;edl 276lcz5 nvy 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 circuidhdsk* yd icqo,l(5y.4bvd* p;f.j6z t diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltag f dhd (jzscpyql*y. dovb6;*,k4id5 .e 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. Su106jgw+uj bpfj-th * n zq:;rcppose R1 carries a curgprj+ncuqh- j;t :* 6j1b0fz wrent 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 conn : gulst6r3/) g2qbxy)odygcqfg4q,( ected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is t2d,f6 lgqg ubs()r:qy/g tq3 o4gxyc)he 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 w hn2)bfmzsd*gkk3 8a4 y.l.bfatts and 120 volts. What is the maximum val2b 8kkbg4 yzsadf3* lh.mf.n)ue of the current 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 ap 1vh,yo*hrm8y*krmf6h3he35: slz l t 120 volhh53mrl8hky6f*so*p :e h1 3y, zlrv mts?

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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 thax3c2 , 2qeyf uw obtwd y*f-x9o;wo4m)t is dissipating 36 watts of poweuo- b2,o o4y39wdfq)y wmx te;xcf w2*r?

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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,zh5t.buxa 7 .uiwm tl 8f)smwl:v8.x : 600 watt.” In normal use, the current in it.w)ltwbv x f m.:h.i5x lzuu8 mas:78t 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 ffrb:k:v9+fu xr:/5eyf ca f l4ollowing resistances could NOT be produced by a circuit containing only three idr:ff:lv+9rffbuyxka / e5 4c:entical 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 following equivalent v b78 ,tptun4eresistantb7,4 te8n uvpces 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 can byu qx: z1gpbt(,2gg-ie connected together in different configurations. If all three resistors are used in a circuit, how many differeqxz-:ty i(p ,gug2g1 bnt 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 power a0s )j6 xty4isP is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are co0jays6six)t4 nnected 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 w 9di ir:ga8)r(ulmz4tance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Wr:wa9id 4( zl 8guimr)hich 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 designed such that it has a resistay ri5l evy zjqo(*(2;nnce of 12Ω when operating at j5 yz (oe2(ivrynq* l;120 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 current fea6ocgs pdt x, -l+, 4nyll1y(4dw1ur lows through a 4 ohm resistor that is dissipating 36 wat ,o 1+xylr uag(4pdd1n4w6 lyl -ecst,ts 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 heat7v ;mkn5gqj 7*opjcc.er draws 13 amperes of current when connected to 120 volts. If c.77gkvmn5j oq c;p*jthe price 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 n,f *hu9e,8nuiwdla 5 1nmw93vl.tv*xl wu3kwould it cost to keep a 100W lightbulb lit continuouu,.ft ,ad*uvllxw9niv1mw3h5n* ue w9 k 3nl8sly for 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 resu7vqg3+ zq1ojsh p2/jplts in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbupvh2sjpq ogz73q+1j/lb?

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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 famjog9, irw0x*cy,h* p aily of 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 2 gxc ohi0p 9y,*,waj*r0 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 resistors tcx oyu47 pp;s-0mdp /fn*q5,k (rfrqjo form a simple circuit as shown tj0 s p75kq*pprfc y;r(n xo-mqfud,4/o the 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 resistors to f(fgm: opq;rfh1pgoub:x .)0 form a simple circuit as shown to tho 1g:.p; )m:hfopxgb qu fr(0fe 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 batt9yw 7o p5kxs-ipwp/s*iuzm/+ ery, an ideal ammeter, a switch and three resistors are connected as shown. With t7smu*9-z+5/iw yipowsxp /kp he 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 ammek la rp:d6hg7b.f;8liter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampereg8 lf;hpi7k da.6l: brs.
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 re5vd(k ex qb //l4u8(augcj:ppsistors are connected as shown. With the switch open as shown inepqc bk(u :d/pa8/4g 5vulj(x 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 is thv3oqm 9iry4 2oe equivalent resistance? Assume that all wires are ido v9ormyq 24i3eal, 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 circuit shown to th )r,qp+ vjaq;1j7drgu e right with resistancj 1qg ;arvr7u+dq)p, jes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected in kt4q* +jixm oxa75 2qda combination series andjxd 72+x*5otm4iqak q 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 s5mk,tcc8le; g,t;tn mhows five identical resistors connected in a combination ser5ctk m,et gt8,m;;lncies 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 circuit fgq-gd *.ixvh/v 16fu diagram, all of the bulbs are identical. Which bulb will be the brightes1v6vg.q-*xg fu/hi fd 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 threp elmke91dm.2- xfqd1go1.st/i1z nie resistors are connected as shown. With the switch open as shown in the diagram the ammet-e/i . sfd1 .92edo1m1zinp mq1ktglxer 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 id8k1c (b1g)jnryuvwp wh 2yf; -eal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagramyjyw1fck ;hp8r-vgnuw2( b 1) 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 resistorswu*yctur yg ;, mz-s8, are connected as shown. With the switch open as shown in the diagram -m ,;,8ucwuz*tyr sgythe ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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