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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 circuigu l:84e pjizx(qm xlb8d7 1.nt shown, an electric 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 resistor?i1xg7 b8l(4dn .epj:xu zqlm8


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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;hz6qmwadw9 7g ud2 jt+o n 0*m)ogs)ected in parallel, the_________each resistor is the h ot)me*;wz9 du)jagg7m 2o+dws60n qsame.

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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 wir 6 w4fzzd6it6te of a lightbulb causes the filament to become white hot, while the larger wi6tf4wtzd6i z 6res 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 replaced with LEDs. LED is thl+u erizhr n85*.w,bghpmuh; ,,cf 5ve acronym for which one of the following choiculmhvb5gh5; + cp.* ,wfe , ,nrur8zihes?

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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 d4np 6t66q,ns6g*v ;quw tahxgraphite resistor 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 vgx6h dt u6*snpan;t4qq6, 6w. 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 xy:(ytl ;6p.t flne+mof the same material. Wire II has twice the diameter and twice the length of I. If I has re+nte ym;f x :lplyt6.(sistance 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 t1w*idx) )c 6mc kj (fd8y7jvmlhe diameter and half the length of wire X. If wire X has a resistance of R t8mfx m1*v)iwydc( dl6k)j 7j chen 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 piecr1qb0mv 6nya1; aqwr 7rs)c) qe of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistanm a)c)s 1q6rb7a1v0rqn wr;qyce 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 brighteo fx .a-2q9ec *ithhonn g.s23r light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in or if t*oxhnhsa 22 n3co.q9-.geder 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 cylindrical resistors are made of the same material. Ta f57x9f +wykuhe length and radius o xuyfw +7a5kf9f each resistor 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 ol1)qg6r9d bycb7f2r vf 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 fourth resistor.” Wha1yfrc)b6 grl2 v d7qb9t 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 accompm5uq x cljs,p* 4:i2ioanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1u* :54 opj cimxqlis2,.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 b2unn4a -+azq uulbs 1, 2, and 3 - represented -2anz4uaqun+as resistors 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 rightj-- wny2 pkig.)chz:p. If the current in all three resistors is equal, which of the following statemz- pwkj n yi2ch-).p:gents 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 el) +wpij/lhldg5f q6 ,pectric circuit composed of 5 identical light bulbs and 2 flaspq 6w5g)f j +phld/li,hlight 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 c41jt ari9 bu7NOT true concerning the simple circuit shown where rj941ui cb7 taresistors 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. ezhxml.v+9ob po 9 q47oh+g.cBulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallvbmoe.9 cq.++p gox lz74hoh9el 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 pass through the identifiedb8gkjsv f3lm dr+0f 88 resistor in 5 seconds once the circuit was sf8bgm3v f+80l 8rkdjclosed?


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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 foll n6;0s*t oyhxkowing simple circuit have the same resistance, which wo y;*o6skxnt0huld 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 diar l.n9 xh7)jfwjhu)b// 12 z:+6xzoceflgj fagram, the current through the 6.0 Ω resistor is 1.0 A. What is 9jlj ouwxj/gz/br 7 l:fe6 f 12xnch) az.f)+hthe 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 serie zkgi2c; +4dh/ lh,0nxk 7satis to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 2lz /a4h ;,kn7+ihi0 gtx skdcdissipates 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 asb vi:9ku cg; 8e6 +m.kt5q5b maqpd)hre connected in parallel to a battery. Suppose R1 hasb qvp+9 58:m;).6 kste5kc iqudbgahm 2V 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 watts*/ xfz z6zj8q:p d0pmr and 120 volts. What is the maximum value of th*:0/rpfz mjqz6d zxp8e 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 alvqop.bp :mhd; -ay 7lp9zk -5ve r90qt 120 v ma9vyol v 05z;q.7-hp q:k pbd-erl9polts?

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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 tw7hx0obplkzo:7l0 n ya: 8 /zjhat is dissipating 36 watt0y 7k 8 0lnhj o7ba::xopl/wzzs 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 9)sh*mh ivdwe1dt4e 16yrp8d "120 volt, 600 watt.” In normal use, the current in1r4yd6wtipd* ) 8emhd91hves 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 /c eqou+eb67:ao yq0m resistances could NOT be produced by a circuit containi m y+e0/u7bqooec: aq6ng 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 4ky)s7-3 zrrtudx,kwresistors. Which of the following equivalent resistances CANNOT be prodytk ku ,-34xzwd)rrs7uced 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 connectv 3sz 6ghwi3.gll*xlmf 5)aw.ed together in different configurations. If all three resistors are used in a circuit, how many different values of total resi5l6 m*3x3 h.gw lzisw) l.gfavstance 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 ret-s 0uj-(rz ojp7uw1ysistor 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 resistance of the batts u(o z j-rptj07wy1u-ery 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 Rl30z9w g: 8plti4 kqhw1 and R2, are connected in parallel, the equivalent resistance of the i8ll34:gwk z09p hqtw 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 * .gik+oi-5yh 2ans rxit has a resistance of 12Ω when operating at 120 vo. 2ysior-*kxa i+5 nhglts. 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 ohm resistor that isu7/c7m 0f.oukbs u(t,u. uz vt dissipating 36 wattso utzfuv,77m0u .cb.ts uu/k( 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 amperes of curr)+ a7vgtral(n5uti (q 6e;os fent when connected to 120 volts. If the price tar6)golsv t7nf5qa(i; +e u( 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 f0((3 mavd) iks9ccbo,3qcak1iov5t how much would it cost to keep a 100W lightbulb lit continuously for 1 year aaqc ik0 (av t(m)d,v13 c3o 5fb9cokist 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 a7 ukmg*z9jj .p power of 24.0 W associated 9*. pkmjzgj7uwith 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 family of six owns a computeo )zf9er0l),uhw;lh4r xyda5 r rated at 500 watts in a 120 V circuit. If all computers are x)h 0wyd9 ruo 5r,l 4ze);hfalplugged 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 for)t4k9zza p84hyl0vou m a simple circuit as shown to the rightzhkz 4ou)tv y984al 0p.
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 form a simple circuit : zlvm ubq2mu+zy1wmfpw7: 82as shown to the right. 81 wqp:m: mmz zu2l+2u7byfwv
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,mi)(vo9 +k2 ixe-uo*x ,hf rqh an ideal ammeter, a switch and three resistors are conne(rh2)q+x ifou,h*vxk9m e- o icted 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ammete3ajl.n5,e qdb r, a switch and three resistors are connected as shown. With th ,53e.nbqdjal e 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, an ideal ammeter, a switch and three resistomu2jw+zb p-yts r)j//hi . ic4rs are connected as shown. With the switch open as shown in the diagram the ammeter r/pc ). b-jz/+ utjysi 4iwhr2meads 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 e)+ g d ntlzgkze;faen*g),2/qquivalent resistance? Assume that all wires are ideal, the battery has no inz)t;ag flgqedz,*n /e2k+gn)ternal 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 right with/. dk+a9wtjjf r)tzx- 0 tf,aiy- 7nai reskar.t -fzt7taw9 ay /n-jij fd i)0+,xistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 s7utc3632vr qp 1vjmp phows five identical resistors connected in a combination 7vvqt2c ppj33 mpu16rseries 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 identical78pxwi nid4- lx p a3ct0m7s/l resistors connected in a combination series and parallel circuit to a voltage sourcec/w8tp a l0m4 xid73pxslin7-.
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 bcxoasnjf + -97:4 *5j aplyaqculbs are identical. Which bulb wicl*jan 75jsx:q-fc pay+9 a 4oll 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 threuuf+j et1z(3ue resistors are connected as shown. With the switch open as shown in the diagram the ammett+u(e 3z fu1juer 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 resist oq ril+(:ydb/7jptr -uch8q2ors are connected as shown. Wr82 c y7d l(toi:pb/ -jrq+qhuith 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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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, vm c,ice0 m0.la switch and three resistors are connected as shown m,0ci vlemc.0. 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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