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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, an electric currfpv2)o k yj86tby.l+t ent 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 of6p 82 .j ytlotv)yb+kf 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 paralxwlfbif0/t 8k cx do 3njx;e,u:.7 ;gmlel, the_________each resistor is/cm.8k:;;3 ,gnwl x 0jxtf efubod7i x 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 filament xhx:wg6e, wbn af1y+)t(6qdlwire of a lightbulb causes the filament to become white hot, while the larger wires connected tlgw+yw: fa6,be6x1h x)n t q(do 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 isg0-62 / :qilwbmdjdvsx c+ru. the acru:xc+m-gbjd.qid/ 0 lvr6 sw 2onym for which one 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 ;p6hvoc 8zu n,L and cross-sectional area A. It is to be placed into a circuit, but it first m;o vcnp6hz ,u8ust 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. Wire IIudwo2 nh4 8ro8 has twice the diameter and twice the length of I. If I has resistance R, II has resistanc8wo ou dh8n24re

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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 s6 )m i7 dop8k7g1nx3- jsnbqueame material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a rk 6ongu1ed7jsq -bx87pi3)mn esistance 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 7 raa9 klx1;p7ihwrn12nyf0dresistor has length L and radius r. This piece of material is then drawn sf lrnw ayxka2;7id71rp9h 01n o 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 Edison wants to make a brighwvcc37e8kue:nv y v.t s3 9k)ater light bulb. He decides to modify the filament. How should the ficy 7e :9vs3kvakvu ne83tcw) .lament 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 cylindrical resistors are made of the sameif jdw4r 0fg knj(ub77z5:zg: material. The length and radius of each resistruzjg47j5z dwb7:fk0(gi f:n 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 in thed7r aaxcf t ;0*vf,klt77 od1r 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.” What is the equivalent resistance of this arrangement of 0*drxalt7 ;f o1,av 7k7 dtfrcfour 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 36pd+ g71zbop 6rjjte in the accompanying circuit diagram has internal resistance 10.0 kW and the apj g+e661jtpr d7bz3 ommeter 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 ciqvwc6ps) aga/ u3- q,;lj o7ezrcuit shown to the right. The three bulbs 1, 2, andu36j;a qgos)/l-c p7v aw q,ez 3 - represented 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 -9 x jeaaon05telectrical circuit at the right. If the current in all threet-nx a0o5j9a e 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 right represents 0 1kmuq 9 ,ds2nnubvfmplqo *ule.:98a simple electric circuit composed of 5 identical light bulbs and 2 flln9o l8uu102 m,:.vpfneq*msq9 kbu dashlight 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 stat e 5o2 sxqh2jrir1m9ir852+y-vojsoaements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistanceror9j2or 1q 2-jm 55iy8h x ao+2svesis?


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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 c46f622tqcskn/w do g X andY 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 connq/c64o2f g6tnd wcs k2ected 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 pass through the identified resistor in -niun 3okr5h+2km ed 8jerv:3 5 seconds once the c3v8-n j:mrk 25+ dhn3uer oekiircuit 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 circuit hallc r 8w,xc3)rve the same resistance, whixw 8)cll,rr3cch 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 6.0 fodrx,.xj70d i0c/a s mzd,f,Ω resistor is 1.0 A. What is the power supply volt0miajs c/d.oz,d , fx7 ,0fdrxage 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 m9;3c)c+w zfq+ttqkpmkh.- y connected in series to a battery. Suppose R1 carries a current of 2.0 A, h3 t+;+k .m-)pqmcctqf9wy kz 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 parallel to a lb ;6t7x)n tqj,+x )a2omjws2hvt8acbattery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dhaj+8, w);to n jvtsm)xa2xbtc76lq2issipates 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 9h6qm hk(f/vz rated 1200 watts and 120 volts. What is the maximum value of the current underzh k f/qhmv9(6 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 design ;ap2ox)) plog: a9krked to operate at 120 vol9:pa)porxok2g ); lk ats?

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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 disxgv2 f5g7j9hbavltuqkxl32 v)9; yy+sipating 36 watts of pow9 at7 2f y;)3xgvl5jgkyqbul9 vh2xv+er?

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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 p 8yei qy9-kpu5wsy:p) ress clothes is marked "120 volt, 600 watt.” In normal use, the cu9)yy yqiwp- e58sp:kurrent 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.ngb0wf34l.7rt6 rgt .l2 qgnj /xrxa be produced by a circuit containing only a.gg2r r64ql.g tr/bw03 xnn tjx.7lf 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. Whihva89+3ps 7ck,zkxu ebo6:w cch of the following equivalent resistances CANNOT be produced using all three resis pbxv 9 a,ek6s 8hw3cz+ko:7cutors?

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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 to .g/lxg7 7n9zv ac8xhfb/otn. gether in different configurations. If all three resistors are used in a circuit, how many different values of total resistanghlz/na /.fx gtncx8o.b77 9vce 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 resist aoa -;nusmp7l/v2ss+*wqj n1or 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 c w as*nmq7ns o v-j1up;+/sl2aonnected 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 resistance R1 and R2, are connecf 9wcqv9jmm l3og;ns3cmjm rw5: :8xlbvj812 ted in parallel, the equiv j jxmr v3v52qm98 fwc:owlm j8; 31lsmg9nb:calent resistance of 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 has a resistance of 12Ω when ophna h a w8 857/nwuckx)mvyf7,7fmz8gerating at 120 volm/8w na v7hx7ac),8u nzyhfm5w8 7fkgts. 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 flow0zsc*uh7 vsp- (hsg:ss through a 4 ohm resistor that is dissipating 36 watts o0spvsg7 c:shz(uhs-* f 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 *f3 caf9gdh1 9mmhoim9joj,/ when connected to 120 volts. If thfi*1,mf 39mjo a99g hh/jmodce 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 keep a 100W lightbulkukxvo 6f8 o,:n3bgg ictx 0s)8o 9j-mb lit continuously for 1 year at a rate09- bk x,:)8oots3vgufnmxc kog6ji8 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 thhwdgp7m 9f :a p fd8sb8n5n2x2/m5t vnrough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the followg8 pb 9/d5f5nm nf7 :m2sp2wxhtd 8vnaing 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 sixi-. ypeca93f*+wz m2ru aff8su6toma 0x ,w a7 owns a computer rated at 500 watts in a 120 V circuit.xt3ff ai6 ,9 foyrw .c-0p uemzaas*amw82+7u If 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 battery is f4e0xe t+k0xh connected to four resistors to form a simple circuit as shown to te0+e0xh x 4tkfhe 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 connv,flnp 7 go;(zected to four resistors to form a simple circuit as shown to the rightovn p g;,7(zfl.
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 three resistors are connp+h:aseqo. j m(o0 y73s3 j6pz)jmsi nected as shown. Wi(pnsm :spq j7y3 +.ojajs0he6ozm3)ith 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 ammeter wvdx-5j:p va )qo1om2fc g2wb/n,;lh, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2. 2a vwfgw1j2x n/v c-obq)p ,h5:dmol;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 batter hra0)t .-f:y,nvaqr xy, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads q0 :nvt- ,aaxfr.h )yr2.0 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 -u jmcahrv. iumwf,( gd13bx8w1;f0jthe right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and alcd fuw3 mjm1 r.f bw guxi;08(h-v,aj1l 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 v ld;mw4esa3;,z6 dkjright with resistanck;ma ljvd,36w;d4sze es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistovre-/s2emf:p:zf-z)h-r zlors connected in a combination s:hr2efmzozpf: re)lz-/-- v series 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 identical resistors connectey(,j ene l u:mdj,0uze5/l7 fzd in a combination seriesy057e,e, (z/luju mzlfe :djn 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 diagram, al*kt5as3f n wi2l of the bulbs are identical. Which bulb w3 i*sk2nf5aw till 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 batthh09dcpfe c;imo9 ,s 9nkn-)yery, an ideal ammeter, a switch and three resistors are connected as s)kd- c9oi hy9m; ne0c npf,h9shown. 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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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 swiu x/ shc rpdn4y3t01 0v1b6gjqtch and three resistors are connected as shown. With th4cs 01gh1b/0u rq vtnxy p36jde 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, a naiydnx( fjkj+/60 *en ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readn( f/6inkjxd*ea +j0 ys 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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