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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 electrhijq-;e3i+e z ic current exists in the metal resistor connected to the battery. Which one of the following choices+;eie 3i hqjz- 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 are connected in parallel, the_________eeq -,7er/ (zi(ffkib vach resistor is the s(e rq v/bez7k fii(,-fame.

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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 f k5tkzc2-buc 3ilament to become white hot, while the larger wires connected to the lighc3utkc 5kb 2z-tbulb 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 ay jo95bq vz(wjkoemxg(1 b:f-ka t1-;re being replaced with LEDs. LED is the acronym for which one of 1g;y- kv1txzj :k(fw oab5ojqe- mb(9the 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 crbtzz8v8)u7(y;(icqy y scw7uoss-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. What is the ratio of the new resistivity to the old resistivity of the )7ui(zbyc;s8v8(w y7y tzcu q 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 II has tt)f7/spzf*/*ns cqs dwice the diameter and twice the length of I. If I has resist/qnssfds7 tz *f/c*)p ance 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 materiac3l) : 5 x(zu*abrj(w2ehdl1 bsqqpm3l but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would hz5wl e: cps)m3l(* 31qd2 a(bj burhxqave 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 has3mpx1 rua39kf 1ouj1 ama: 2-yp*iwrg length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistompa-2j9r rukafxa 1 3uw:m13y1*pg iance 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 ,18f);mpdagdn afjl. Edison wants to make a brighter light bulb. He decides to modify the filament. How should the;n1df)8fp .alma,djg 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 cylindrical resibw2,/ vpe )noie;wwm*stors are made of the same material. The length and radiusmpw)/ ;we,*ne wb 2ivo of 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, eacxox :u)0f xhi,8*bth2i s0y dwh of 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 resistoo ,b:xf8xdxw0)tsy*h i2i u0hr. 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 internal resistan9q2je+kjtt d gda:oor05g5q5ce 10.0 kW and the ammeter has internal resistance 25.0 ohm. Thejo9 t2j:q+d5grda e to5k0gq5 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 co l(g( zgk)w: ;ymvffm 4zl3bw1mpound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistvfz mgzl)g(m1 fwlw b;(y 3k4:ors 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 electri0ijga*w l65r sab uj)zh.t8w3cal circuit at the right. If the current in all three resistors is equal, which of theaj6j 08)* lzb5a gs3rwu ht.iw 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 simple electri hemhva7ape 259wz1 q2c circuit composed of 5 identical light bulbs and 2 flashlight cellpae5ahqe7z v wm9h 122s. 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 cb uywvamxro4c7y p 2(/i58 hb7oncerning the simple circuit shown where resistors R1, R2 an b7 mpurc842 iaboyx/57 yhwv(d 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 sezhrv)3xz0c7 xfben8 ( ries 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 bat 3h vzf78n0xx)(czbe rtery, 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 y1 t6es7q vl8h2pn2vt6h0lg k the identified resistor in 5 seconds osnehvht2y6 2076 lp gkt8v1 qlnce 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 simp9t 9vjl 1hn x21ywm bma-t(gt4le circuit have the same resistance, which woulj 1t9ax w1h4l92tng (b tmvmy-d 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 ryo qmo6+hf +l1esistor is qo6l moh y+1f+1.0 A. What 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, and R3 ar u,dc7nck: ge)e connected in series to a battery. Suppose R1 carries a current o, ecg nuk)c7d:f 2.0 A, 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 paraitts 6+ ih9b- b/k5h(zk4iz mkllel to a battery. Suppose R1 has 2V acrosb5i k-ibt h/hk9(zt4msik 6z+s 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 vol*1eyw )q au1au b2pq4ets. What is the maximum value of the current under t4a *e w21 )eypquabu1qhese 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 609af kzhi( r:ggy1jfla2- .9kh watt lightbulb designed to operate at 120 vgg:f.y (h9h alz if9- rkakj21olts?

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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 curre o(g1vjjuu+t g,v 1ru0nt flows through a 4 ohm resistor that is dissipating 36 watts vu gt,org 1u j1j0+(uvof 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 clothq(3v jo0rk/2gdmw .qb es is marked "120 volt, 600 watt.” In normal uvk2.md/ o0rbw 3j(gq qse, 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 NOT be produced by a circuitul6he 9xaxej9f (( hi0whiq1 f(ry9r6rbu(;r containing b0relxu(hr 1(; wfie9q6 ar(f(6xyj9rhhiu9 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 ,+s.(luuu, l z/ylv icof the following equivalent resistances CANNOT be produced using all thuclll /(.y+ , us,vuizree 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 toge(m ak mf48pnjj p.se.-ther in different configurations. If all three resisto(same8j 4nfmpk-p..j rs 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 )8atqg0zgi8d to a battery, a total power P is dissipated in the circuit. How much total power is dissgd)t8q8 z0agiipated in a circuit if n identical resistors are connected 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 resid,rz;;l1 ((n*npp4: xikgyyvq f7h ce stance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resisxn (cq1,e vgk ;rdn*:y4 lhp7z;y pfi(tances 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 designedv6 j:bipb8 t,q such that it has a resistance of 12Ω when operating at 120 volts. What is the pb6j i:q8t,vbminimum 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 td z1py6- umxc5hrough a 4 ohm resistor that is dissipating 36 watts of ppx5 cudm-y16z ower?

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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 a,x8 (a tqzdx y:c.x5s59r( yr;vfxaq nmperes of current when connected to 120 volts. If the price of electrixfa9y ,av;.x:n(tcd5 zq( qr8y r5sxxcity 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 cosk ;f+0u6 o vy8vb7i rcr8ipso9t to keep a 100W lightbulb lit continuously for 0o fy ;pui+b98cv7i6r os k8vr1 year 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 f6cmj z 7-tmrxg+ nu0-ro:7oiA through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices ben-mftz +mjg o67: 7or-0ix ucrst 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 comwc4nswk t6 3c6puter rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum number of the computers can kc tw s4w6n3c6be 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 f5o* x1xpyfok6r :z1 nciw+d2uour resistors to form a simple circuit as shown to the right+6ufxdniy:kc5 r2z11o ox pw *.
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 si ; ak*mnzc4)/:ekbrg smple circuit as shown to/bszge a:crk;n) 4*mk 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 ideal ammeter, a switch az m(oyb0/ co-wp 8mlrn my:0u,nd three resistors are connected as shown. With the switchlub ,wm omm:y (0nrzy/p-c8o 0 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 a a dh/*a0go4 xfp*t9 flw91shammeter, a switch and three resistors are connected as shown. With the switch opea slw9*0hp9x14ad/hfg* tf aon 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 a,(k 9jbo f,eft.w7sv(x zx0fi5 . mderesistors are connected as shown. With the switch open as shown in the , d.vf7w0mie ,ebs xfak.((z fjo59tx 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 thef 0r+b6pm.ef b right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resise06ff b rb.+pmtance 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 circuitu5s7 4hrk3,f bodsf 8s shown to the right with resis8 ssr,4os7khu5fbf 3dtances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistoombshk2lr7zx5 )9i4 w/ tvo;b rs connected in a combination series and parallel circuit hxwrl/)b mz5 2so;ko i9t4v7bto 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 uw nk 5z,b2hdqr f0o0-combination series andrdnb0- 5kuqho 0fzw, 2 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, all of the bulbs are idex(unzk oc98ydw-4 3 ndn q00jcntical. Which bulb wiyn8u0x40jdnd3 c (n-c9qwzokll 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 rzfiyuk w0tk t-878+land three resistors are connected as shown. With the switch open as shown ylurti7 0-kktz+ w88f 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, anvsq;qne o7 c20 ideal ammeter, a switch and three resistors are connected as ;e2sqonc7 v0q shown. 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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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 resist 8fv/ezg8r)(+mw,vozkd5ph tors are connected as shown. With the switch open as shown in z(pwv8krg ezo)dv,f8h/m5 t+ 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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