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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 current exists in thehct(iyv 1 vdj ylkh/(u70/ m.w metal resistor connected to the battery. Which one of the following choicewhkij/.hm/v( 0 vut dcl(y1y7s 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 a/cm)os9+fjt jre connected in parallel, the_________each resistor is the sam ostfj)cj+ m/9e.

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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 wire of a lightbulb causes the*q7xrn5bv ru 8 filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becausrv7ubq*5 nr8x 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 househint1( q zcobp ((tn9.vold lights are being replaced with LEDs. LED is the acronym for which one of tco1(npb tq( vt(9 zin.he 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 L and cross-sectional area A.i8 i db)ssp 9bs:tdw85 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. What is the ratio of the new resistivity 9tpis5sdd8: )wbbis 8 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 me1ak 2ed tf ydb3x6+myp./ayh- uh6 4eade of the same material. Wire II has twice the ddyp .au- teaf hh /b3ed2em6x4y6k+y1iameter and twice 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 watt16zk nas3vc6. j(, wm;vl s; ju;mthe same 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 res 6m;; ajswtc wz, vjtasl6 13nm(;.kvuistance 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 -2i mid1 8/8onwmms rjr. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this 8rn-dso/mmi 1j8imw2 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 ;k, ,* kvv xcxz u-fitqa),2vwbulb. He decides to modify the filament. How should the fila 2-fvkxx qau)ct ;v,*vik z,w,ment 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 same mater/bn5um)j9 xzlu z6kii)0o c0mial. The length and radius of each reuxb 0/ kzmn0 ocl5i6 u))zm9jisistor 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 of13v6 xntb dbvbejwfdd3 c6849 resistance R, are connected to a battery in the following way: “Two resistors are connected 6bxewbbjv3f3v d4 6 t81ndd9cin 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 has intr9j+0x 6sz -xna ea0e s8gcvy)ernal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Tc j-9xnagyrvszxes+ 60)ae8 0he 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 t-5mt/mi ria7t ,fumd ir:if.) he right. The three bulbs 1, 2, and 3 - represented as resistors in the dm,ifm -umia)dr/ i5t :7fri.t iagram
- 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 all 4/8.vp levjnjao/ig( three resistors is equal, which of the follow eop/g(8vji n/lj.va4ing 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 as2 (*;n/ibcl) sy(k h9 gfdpmi simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbsif9sc dg* 2 pn)l(smbhy k/i(;)
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 foaewxs8zt f76* nn l2j2llowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 n*6tlje wf 8s2n7xza2 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 seriexw8 v2a6vju y4s to a battery. Bulb X is brighter than bulb Y. Assume all circu4 w8v vayx6u2jit 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 coul0 xq v95q0ijjucczl-4ombs will pass through the identified resistor in 5 seconds 4-jcqi0q lx0c juv9z5 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)w((na pgbls)idj sc11dj7 u; circuit have the same resistance, which wo d glw1cs7()sa1 bu)dn(;jjpiuld 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 Ω rk;ex.0oy q5vk65fgq/0qa ua pew2 a( pesistor is 1.0 A. What is the power.q(02 vqxk5aw/ ;56okp efaq0g yeup a 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, anduew; kb-2p4h z0 f30pyzb1 dnwxhz8s/ R3 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 zw; b1spwkz x8zybh43dfu -0n0 he2p/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 con t0hkv1j w )dr.jark.4nected in parallel to a battery. Suppose R1 has 2V acros)jk .4 ha1wk trj.vdr0s 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 and 120 volts. What is the / vumg0 pg)*njeu,tl/ maximum value of the current under these conditionsuv*eg/,nl m / pju)t0g?

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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 lig+5ch rg g;-3hz) 1z*mjptbu kshtbulb designed to operate at 120 ukh+g)b- tzm*r; 5z3jgp1shcvolts?

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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 thr9betglx5 )va1b*xho j 9vqm8 :2 sm,;dzfg m-iough a 4 ohm resistor that is dissipating 36 watts of powegg*12lm- );e t:oam i5zb98dvbvx j 9 xsmqhf,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 mark rw , xoe2).i-:vtgfdfed "120 volt, 600 watt.” In nor ev:i2 -g.,rf)o fxwdtmal use, 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 resistancz 7g/yfj;b d5ses could NOT be produced by a circuit containing only three identical5gyf7j;/zsb d 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 resistor 7ch n3* hmh+6okjve+ts. Which of the following equivalent resistances CANNOT be produced n+hh hej mo37*k+6t vcusing 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 differenkup5*5kj olb+a nv56f /nppc 4t values can be connected together in different configurations. If all three resistors are used in a circuitlou*5b 6ppj5 4vckf/+a 5nknp, 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 poyxg ymsddw ku3/v9*8nw1 df8/ wer 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 then3dgy */8ux 198/wv fmsywkd d 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 conyxb1*zopa2z;,yv. adxa*(an nected in parallel, the equivalent resistance of the combination is 5Ω . Which of the follpa.*xxa1y2;*o z y(zd, anabvowing 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 designeq.*pd/ ;:p exj5 a)4yct azyzzd such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amoun.e5* zy/:pdja qx;zc) tapyz4t 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 is dissipatiae7o5cj* myqx(p1vf 8: iynm7ng 36 watts of po im(7pa8yve:omc7 f*q n51xj ywer?

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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 drawsig4 ex6ci)+koz bf*8 e 13 amperes of current when connected to 120 volts.ce gi6io +bx8*)4k zfe 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 ke:fpcl)akm3tgs ig86 :ep a 100W lightbulb lit continuously for 1 yeam:pksf) clg8g : iat36r 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 res.4pp8l)p nv2if.z w.okoq,x xults in a power of 24.0 W associated with fzo42k lvip p..x)nox,q8.p wthe 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 computer rated at 500 )bmrmx h13k 5zi+.wkq tj,3qpwatts in a 120 V circuit. If all computers are pl3p,1 xkjb3zm)+q5 wi.k trqmhugged 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 form a simple wd)n rah*z2/fb;jg i )circuit as shown to th2i rd/a*whb;z g)fn j)e 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 form a simple /n ebai+zyn) 4j e.:ob)7iwxqcircuit as sh ijn)ez/ 7ae +oxqb.n b4)ywi:own to the 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 ideai l kqdm 586:fj;5kigwl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere;k8li5w6q mfj gk: di5s.
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, a switch and three resistors are enq-:kbm;j g;menjd)ts 3fa z4,,5hc connected as shown. With the switch open as shown isbgtk-q;a:znmm ec;,dh,)3 fj4 ej 5nn 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 ilyqzkw)upn 2*.y*wrj 3 7 kff3deal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperkwp.w2rq7l fu) ny j*3y*z3k fes.
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 theec 04t ar)y*zp right, what is the equivalent resistance? Assume thatya4pr0t *z)ce 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 resikum92eo1( q dzstance of the circuit shown to the right with resistances 1u9dq2kemo( z$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 y z(x00oaw8 yaconnected in a combination series and paralz0oayw08yx (alel 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 connected in a combin p,nx*iixhi 9n-((8dqs c6rvbation series and parallel circuit to a vpixnc6n* d (-98 rxvq(s,bihioltage 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 the bu*aa i3)2lm6r wme+axnlbs are identical. Which bulb will be the brigm r we2 )6xil+aa*m3nahtest?


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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 e-+ a,dxykc 1cthree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amey xdk, -acc1+peres.
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 idean0zrw- * r2ahpzr; /qnj. d8osl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the dirn z*;2qa rrzosdp.njh - w/80agram 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- y7fxl:t bk9x are connected as shown. With the switch open as shown in t7fylk9:b-xtx he diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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