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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: 匿名未登录  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 electri: uw5w mfv80pqc current exists in the metal 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 through the interior of the resq w0:vpuf85 wmistor?


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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, the1uxn;. xxhbo mo,clvv f8i(+0,7pwmd _________each resisx8(ub fm;xd 10 ,xcmovwho,n .+l7pvitor 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 throrghgjz ;uv*8b,6q.o c+8gttbugh the 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 becausqctu 8; *vzhg,bt.r+j68gbog 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 th1 0,hsiqap al1e acronym for which one of the fo,ilq a1ps1 ah0llowing 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-sectional area 4j +l6nkd(ri cl;5barA. It is to be pc ; 5a6krblnjl d+ri4(laced 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 of the same material. Wivoo;h76ptco dm 75f- jre II has twice the diameter and t5c76h od p7m;ovjto- fwice 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 dit xh 2u;ckyy0-ameter and half the length of wire X. If wire X has a resc-uhx t 0y2ky;istance 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. This piece 1 b md8k nqtt3b.kan17/2gznjiv t 8b(of material is then drawn so that it is a cylinder with new length nmkv q2j/ at13bbi1t8t7n8.zk (bgdn2L. 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 Edison wants to make a brighter ligh*: rf:yw3ky ahb:i wh0o jbl*-t bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more lig- rwho:*ab30f lbw:*h y iy:kjht 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 materia90 rn;kjj re(dl. The length and radius of each resis(9;kej 0nrjd rtor 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 connecti(q1yc8 mhilq,k) v z qz8)qb7ed 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 fourtz )z(1cy8qiqlm) b7q8,kqvh ih 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 quuptns,hwl /mtv8aig;- 9 n:0sm12f in the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistan8v 2q m,hsustp/gn: aftwu9i;0l-1m nce 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 circuitf 1*l;og;wdv q shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the dia*l fwvqdg; o1;gram
- 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 current in b0zm3m8 fpublb6:4 s mall three resistors is equal, which of the fol0 8bmsu6 4 mplzf3bbm:lowing 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 a),ilbs*dd6fcar jk,iie :;8 jt right represents a simple electric circuit composed of 5 identical light bulbs and :ji 6sik,ifej ,abclr ;dd8*)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 concerning the/sr v.3g8 uq q8wek8ufg0vv +o simple circuit shown where resistors R1, R2 and R3 a3kw+vqsov g0 ue8qfg8v 8/.u rre 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 and0 rojgpr/y/ elk *dtv5*it 46eY are connected in series to a battery. Bulb X is 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 represents vtg p5ey/rj4* it0*6 ekdorl/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 wimhfa 3 ys,+pr6 jy8c3ull pass through the identified resistor in 5 seconds once tc, 8mhyjsa3r63+ y fpuhe 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 t nt(09ujl wn+b;bye5qapn 71the following simple circuit have the same rese9p7;n+ w1 lbtbqn(5ja y0 tunistance, 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 accompanying circuit diagram, the current through the w0k8x+ jxuad,6.0 Ω resistor is 1.0 A. What is the power supply voltagewxj +k ud08,ax 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 R smmnknj4r:/( 3 are connected in series to 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 across R jk/mn(m :4snr3?

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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 armw99v 6w;*nbd pff,-3xm1zfit- hhxde connected in parallel to a battery. Suppose R1 has 2Vimd , t-* hwxxm9 wf- vn3fbpd;h16zf9 across it, R2 = 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 rated 1200 wanko-o goj0b)3tts and 120 volts. What is the maximum value of the current under these conditio0o)g 3- bnoojkns?

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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 tsnf.fh8 .vdzaxqnoy zhi/*v9 *a5i ; 2o operate at 120 voltzhi a2*x ff9nizv*nd h/sy.a ovq; 58.s?

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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 throughum4u2sp*x /b2f 4nhcq j-p/ie a 4 ohm resistor that is dissipating 36 watts of powes*jbhep24 uu/x4n- 2 cp/iq mfr?

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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 pressr; z( o2n5hubry5 v9zxq mo09b clothes is marked "120 volt, 600 watt.” In normal use, the current in it ir5mn2y0zbqzo u;9vb rh o5x 9(s

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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 ifx121mt j4twa circuit containing only th24wtfj11mx t iree 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 resist yn3n 82-wa ceyr6(ugy v+hm/tnd f8/rors. Which of the following equivalent rern y8r/(+wmnyhu8vcged a - fyn3t/62sistances 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 be connected tog ql dxfc4tl*hqu .o15y 14fob(ether in different configurations. If all three resistors are used in a circuit, how many different values fqcd.ll xo45(u y4hq1tbf*1oof 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 connec:c)ivwho:x92 ey x)a td*p :pvolqig)0i4h5 ated 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 silx g)p0vy:)ph4i ochavat ido: *2 5:e9 )wxqeries 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 connecv8ht5iv+a-((lh jquhted in parallel, the equivalent resistance of the combination is 5Ω . Which of thehqj5 ivh-u(a(+hl tv8 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 resistance of 12Ω whenizyabc*:z:njwi+ xlj.) v d4 8 operating at 120 volts:vid j.:+zljax)n 8 yw4*ibzc. 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 flows through a 4 oh(wo -6ct0 3vvvxxgm/ 6ktdngj4 e l7o.m resistor that is dissipating 36 watts 6w g-7( v nkt 6vo/c.4l0xdgtjx3ovemof 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 current when c/,l up kzi) hu8mc-+whonnected to 120 volts./hu pzk+ lmch)iu8,-w If the 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 would it cost to bm:( *f9vyxvv keep a 100W lightbulb lit continuously for 1 year at vm(: vyfx*b v9a 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 li nxjr-o-ny2oo8; os( kghtbulb results in a power of 24.0 W asss8-jnnr-ok(yo ;oo x2ociated 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 famiz 80bfw, cr/ f0m6a48pa+oey npe+puu ly of six owns a computer rated at 500 watts in a 120 V circuit. If nmcweeufppb0+a88z0 /raf , 46u+pyo all computers are 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 battfojlk +epug2 mo5i w:2+s( x3eery is connected to four resistors to form a simple circuit awo+(3lp2um:+ skij fego52 exs shown to 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 batte)(pej) qsda4(* udrub ry is connected to four resistors to form a simple circuit as shown to the*p)sd4uq) rj ua b(d(e 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 pl 5v(2evg nu4three resistors are connected as shown. With the switch open ap nl 5u(v2g4evs 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 m2xv 75lmd 6pu 9lye4fc;ypn*, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagramx;2m5ed vp9 7m6nuyyl*l pf c4 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 thre 82k4y vjxu9dtw:z5 vee resistors are connected as shown. With the switch uvtjk :89xeyw5d4zv 2open 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 the equivalent residd,nv0 ugm nsp3n+ 0*x qbl.d)stance? Assume that alv0sq+. ) * pnb3udlgnxdd0mn ,l 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 thev .v4bs j,m xrfi::mj3mw7lrqoa2( ;i circuit shown to the right with resist;qivav .fs b3j: r7:o4j2i( r mmmx,wlances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 4; cxf3 nscxa0in a combination series and parallel circuit to a vol;snac 3xx4f0c tage 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 a co.c l7so+ edj4gv) e raaxj4jav6n)g) 5mbination series and parallel circuit .a6)a4g+o7 )cvvd )nsj4j5 ea regljx 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 o,ejw0j2/o8xt;f uj skn6i(l;:fsph the bulbs are identical. Which bulb will be jlx uow:;ift8h6 k/e0o sj(;p2f,njs 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 tb4j.:fzp;ag7z f;gnngg zd7ggx+:mli4 t ;5 chree resistors are connected as shown. With the sgig pa7g:5ggmd +l 4 ;: nfgb7zf ;;4zj.xctnzwitch 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 resisto n3/cjs up55bxeipo1 91wo l1nrs are connected as shown. With the p511wn3j1 cxol np59soi e/ubswitch 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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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,/ )uhlzrwz, t:lk5 4a1nhse a( a switch and three resistors are connected as:saz,5ae(1) r4uklh w h/ltzn shown. 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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