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习题练习:.Resistor.

 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, rlr)q 2,0tgdot w5d ao*v1nc, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the directiw v,rtq25a*,ngc dd to)r1lo0 on 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 conne-1u**kp8b jht1iad at8b t so(cted in parallel, the_________each resisto- b*1t8tdapij1k* s habu(8 tor 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 filamegt* h (( kav nutfzj-xfn5e7.3nt wire of a lightbulb causes the filament to become white hot, while the larger wires conne 7t -z .(jfhenxg*5fauk3v(tncted 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 :n7y;u2a ,rb8 qpe*jgofkw2 /wmjao/with LEDs. LED is the acronym for which one of the following choices?,rugw8joy/q ewmpf ; ba2a2no/ 7kj :*

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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 rq;muo; o+lm1resistor has length L and cross-sectional area A. It is to be prq ;1+um;lo omlaced 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 a b:vz : c/ c7pn35zaqvct*tyg9re made of the same material. Wire II has twice the diameter and twb ca: g :nytc9vc7tp3 vz5*qz/ice 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 diameter and a b.x iva8px1n9s p:z5wm*)oa half the length of wire X. If wire X hbxapwo1*5 8a. x:9avsiz pn)m as 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. Thik-m hx2m.n3 zyh36cx s3r4rvas piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistancs 3arh2r-xzc k yvm3mnxh63. 4e 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. Hea+2 8e3pi0sckl6tvyc decides to modify the filament. Ho0+c6 8iaves pt2yckl3w should 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 cylindric92r cvv kmst(;al resistors are made of the same material. The length and radius of each resistvsmv 9 2crtk;(or 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 connected to a battery u)s,yb/ avq 2fin the following way: “Two resistors are connected in series. This q/, uvb)s2a yfcombination 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 acc) ), o 5ngqpc-,*ops n6qgrcs:r atv;qompanying circuit diagram has internal resistance 10oatqn;,gv) s6q*r)p,qc-n5r :o g pcs.0 kW and 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 bulbs 1, xgounmg nls*m)xy )n2h+:d0pmio/ l r78(7ef 2, and 3 - represented as r:n0gn h+ fmo 8l/u*x7edym)osxr2 p)m( 7lin gesistors 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 qcuwv m.6aatt .ta:yf,7px 66 current in all three resistorftapxa 6.7a yqvu6 mw.ttc, :6s 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 simpl(zlm e0c98ee00m a iht0/wwpne electric circuit composed of 5 identicph /e 8z wwc9m0tnme00i0ael( al 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 is NOT true concyco6zcr +,r 8uerning the simple circuit shown where res , 68rz+uoryccistors 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 ivp c4pcqabrw 4462w3w oc:lmlr u3q36s brighter than bulb Y3u2 pa cwlcvmr: q 4opl3c 6rw436wq4b. 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 pass5/ux kqqye5o,vtj w q:3 xcs9//xon4pc: ) lyn through the identified resistor in 5 seo , lj/tx5v/39p 4xckqxqu:ny5nwc : e)oy sq/conds 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 following simple circo7qb x.9- wjb 2bco0p-+rixjq om1n2 guit have the same resistance, which would dissipate0c9x b-7jno qbp j2w m g-.1or2xobiq+ 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, thelju /3 )ik: (gj/kdmxo,*e.r1 )huo2g qun stm current through the 6.0 Ω resistor is 1.0 A. Wh.oi) leh:m* j)rg n1sx,2u//jqouk kdutgm(3at 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 -rjp+9 )eqoyy, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 e q+yoyj9r-)p 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 c:,s g61syi ajdjzs;5obm)xhy s- ),z in parallel to a battery. Suppose R1 has 2V across it, R2-)xdo y j6bgzz; a:jscsim)h ,5 ,1sys = 4Ω, and R3 dissipates 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 ra z fby.hlqp6d;w fs/w.;l rw62ted 1200 watts and 120 volts. What is the maximum value of the current under these q6;sw/.lrzffy bw.p;l dw 62hconditions?

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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 dl blnlreyud w2-8tb,7c1 24nbesigned to operate at 120 voltslb2nd n1w8 eltbr 247ul- b,cy?

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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 ohml5djht;+*uch cqt6 .o resistor that is dissipating 36 wattst*c5h.lu+h; dt ocjq6 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 clothes is marked "120nspd)gq*5a, :znjb)y gzg iep)y: q8* volt, 600 watt.” In normal yp5:*)ng zgeis, q*j p)8:q)dngzaybuse, 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 following resistances could N7sv3d/db 4 sl 4jpf9*dy ayc4dOT be produced by a circuit containi*s49s 7d j34cfddlva 4pybyd/ng 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 resistors. Which of the following equiv+6n 8evf-g+erc1u2 a n)wa; n-qexfspalent resistances CANNOT be produced using allcn+afg- +6xe )u enp2 eva1sr-fnqw ;8 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 dzt8v+pybj 62c fyrtg 0:5h;cconnected together in different configurations. If all three resistortb5h8z dpy:rv+c0ygc;f 2tj6s 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 resistor is connected to a battery, a total power P is dis/ xgg9*6gn 6 cu48ymu(cdwokk syk:,asipated 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 resistance of the battery 8 a 49gmk: uus(,dg c6yxgoykc w/n*6kis 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 ct.dym4x6 +hl4q.s)ld khz /fjonnected in parallel, the equivalent resistance of t6 hh.dylj 4xmzf.dql4)s/ k+the combination is 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 designed such that it hafiq ++fztqm:54ghm/(/ t pxumgfr0b5s a resistance of 12Ω when operating at 120 volts. What is the minimumm4b0fh:gx(f +/q/rgt5f5 ip zt mm+uq 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 y-jgpkvbtul.6 6p y0n w+ 1mx;ohm resistor that is dissipating 36 walw.6b 6-n0x;pugyk+mjp 1 vtytts 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 heater draws 13 amper3dw2j isx sy6)es of current when connected to 120 volts. If the p2s)wy6 sxj3di rice 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 it cost to keep a 100W lightbulb lit conozgc vcp0*s g5s jy2j4.a-h f03:xxk rc7 (ctitinuously for 1 year at a rate of 0jv5.sx f*cca s:tz x-i0hoprk7 2(j4ccg3yg$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 dt.vdtf6ri5xt 2 ;e20 nfy+ly a power of 24.0 W associated with the bulb. t2i f2t6xeyft dlr.v50n;+ydWhich 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 of six owns a computer rated g6njhj;glwnasga-5 7 6 51k dsat 500 watts in a 120 V circuit. If all computers 55ggs j6n; dw h-ag1a6 jlnsk7are 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 connected to four resistors to pwza ns: 1 qgpx8tc* p)u2:rt* ykd)j2form a simple circuit as shown to j12* *p wqurkp )2xaytpd)nzsgt8:c :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 co 3zrh ;g(jzpj5 wd-+mlnnected to four resistors to form a simple circuit as shown to the right.wpjdlmz5 gz r-;(+3hj
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 n,ez78 tt.d .mxmevf .switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere7z. d.mm fvx,net.t8es.
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 ami + ,-mwd8m4i+pukrdtmeter, a switch and three resistors are connected as mptd4d r-+i+wmi , 8kushown. With the 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,5xbcxz0v (ecugo6 7q( an ideal ammeter, a switch and three resistors are connected as shown.(x0bczo 6excq( g7 u5v 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 right, what is x4p(+; 1vccc:ugedtpq8y* -xcf 2jdo the equivalent resistance? Acy; :c21opd8p(jgc-+vfx u tq4xc ed* ssume that all wires 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 equivalent resistance of the circuit shown to the rnhi7oxl25qtjbi( od; q ac9 l81q7h b-ight with resistanceb h2t jq 81dlixcho(7-79l iqb oqn;a5s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a jxf0 c, 3njj cc.ri66f(etr:1(ibn wbcombination series and para0x6jn c(fw tjbf:.i(3njec 1b,ri rc 6llel 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 fivvk6i/ax r0 ixo 9lx*f7e identical resistors connected in a combination series and parallel circuit to a voltage source. 6i 7kif 0a*9l/xx rovx
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,bted,/,csu+xg re97 c-e l* jf all of the bulbs are identical. Which bulb d c9+bg/e 7 xlfs *eer,cj-tu,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 ammeter, a switch and three re f+sk dqqxgm5.f6+p.zsistors are connected as shown. With the switch open as shown in the +kqf g.z 6smpf+d.q5x 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, i)qw-3ln yo n+an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the dialyn 3-+ i)wnqogram 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 resistors are con jgao 31 0x4;fmp/ws.hk-dxonnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.s43ohg0 xo1fwpa jd/ m;xn -.k
When the switch is closed, what would be the current in the circuit?


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