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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 r d( py;(rgra7in 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 ty rp7arr; dg((he 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 connep92(a0.yx b n fu-kk)k0 lgkkgcted in parallel, the_________each resistor is th- 9lku2(kg0ak .gnk)bypxk 0 fe 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 f dkr n9ib ;)m*n7him)the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connecbi* kd i)rm)hnf7mn9;ted 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 lighteik0pvb6* , e.g*b: wcvl4xt as are being replaced with LEDs. LED is the acronym for which on ,64kwvecbl eai0*g x.bp:t*ve 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 hta /ob+pk64ob as 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 1o4bb+ap/to6k /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 mai.dkkin /rgn24l 0g i3terial. Wire II has twice the dd34/n irg i.0 gkni2lkiameter 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 th hlt65/p)o1, j b-p l)+ bxi-biqjioxye same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wirehi1 t-)oqp,6/xx o-5lbi)p +b jlbyij 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 anq2qz r)q. 1,v7abt hggd radius r. This piece of material is then drawn so that it is a cylinder with neg q2q,h7 .1tgrbzva) qw 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 E;*3 zaf 8m*mhhdzof hzi5nl 60dison wants to make a brighter light bulb. He decides to modify the filamefm6i0z*l35zhhhz *m ;d aonf8nt. How should the 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 resistors are made of the same material. The lengm i-h5z4riga3 th and g-iaiz5hr4 3mradius 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, each of resist1:4,sig ;eu pt/qm,uzwx8awg9nqi)sdy6 zr 8ance 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 fou ,s)tyeim n:;azs /q g69rz1xw,8ipu4 uqg8dwrth 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 a+blm/w o (-mmjc5 s3*7vwbbwoccompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.0o+ - mbwj* bolvbwcsw/7m 5m(30 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 d.xyk bip1;e:h.ipov*p5bj 9 right. The three bulbs 1, 2, and 3 - represented as resistors i9bd. o p.x15p*jiihvy kbpe;:n 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 electrf6 .8ol n96pyz yj 7szea1xv/lical circuit at the right. If the current in all three resistors is equal, which of the following statements must b96zpn1 x f6y. yvslj8el7/aoze 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 elen.n+.yk- 6,fqwy wy da:ke.oxr ; u4kcctric circuit composed of 5 identical lina4o ruk,yyxwck.wd +f;- 6. e:nq.ykght bulbs and 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 simple circ;4 .v)jq4g jcrieem6 xuit shown where resistors R1, R2 and R3 4jg4;cjre)i q .x mve6are 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 barv9v.u sk 2lu0s.4qf p tqlgc, +38jidc/te*bttery. 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 reprevlucd t rp0c9/fgkl,ju* ebi 8s2t.+ v.qs3q4sents 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 iden r;clcbgj/. i8 n0tk 5nb1y+jatified resistor in 5 seconds inj5rab+. 1bytc j; 0c8n/lkgonce 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 circuitjzz(t*hg7 x:dc jqorz(9u3 o2 have the same resicu q ro* :gdz2o(thx7jj9z3z(stance, 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 diagraug(-m5f8ise w4g( r wfm, the current through the 6.0 Ω resistor is 1.0 A. What is the power supplg5u 4f(swf-8e( wirm gy 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 resistor3q-xj9vdnpo(b; 7isvx32ng gs R1, R2, and 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 dissipates 6.0 W of power. What is 7v3x(gjigqb23 np9 v;s xno- dthe 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 bd, ks4jyu1p 3eattery. Suppose R1 has 2V across it, dp1k ,y4uj3e sR2 = 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. t.ujy9 hz-ac4 What is the maximum value of the current under these conjacy4uzt9h.- ditions?

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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 design0 jy2skdblk c6r,:xo y/l +g)jed to operate at 120 volt yckbsr)+ky0d,2j :6jl l x/gos?

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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 resist: l8c aa4sndq:or that is dissipating 36 watts of l:qa n4c:8 daspower?

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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 ironl 7sfmo3q8:qt used to press clothes is marked "120 volt, 600 watt.” In normal use, the current in it ism7 l8s3foq:q t

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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 reub*udtlc8u e i17 mj;2jb2cov9 zs:c-sistances could NOT be produced by a circuit containing only three identical 6Ω resistorm:zlbudo87vibj* 2estj1 u;c c2c -u9 s?

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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 of the following equivzcf2u++ ot hc)alent resistances CANNOT be produced using f)cc ho2zu++ tall 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 ofrsbi qt ,x339x different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values ofsx9xq,t33b ri 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 batteryd wz) dxf6+a/y 23bqmo, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identicd/ q+) ozf3b ym2axwd6al 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 resistance R1 and R2, are connecteq) yehzva/:fa -+ i5eqd in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resist f- +y5q:qezaie)ah/vances 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 design k:;6f tacv2sjed such that it has a resistance of 12Ω when operating at 120 voltsc f:;jv s2tak6. 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 is dissipating umqr/d89hxpx p:1.on izaw/a97jd ft4)b im /36 watts of powerwxfm xoi97td8dpi9hurm)4a1 j a/p:q.z b /n/ ?

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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 connected to 120(d3 i ,w /i6pch+:jrtn)czsohn2) p mo volts. If the price of electricii,p/j) n( nozo tcrmhidp6s) c :w+h32ty 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 lightbueg( v8 ;zvpp7j+w(wnylb lit continuouslyzn8(evywppg;v wj7 +( for 1 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 A through a lightbulb rs ccryt1+2 zl.h70yeresults in a power of 24.0 W associated with the bulb. Which one of the following choices b tr02yz+r 7l e.sycch1est 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 siazx4 5b trs1h6n8t8 cxx owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugg84 8cb1hrx xt5ant6 szed 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 simplxbe3k v/pd0r l 6y:z+yfex7uj jm4+6k e circuit as shown tfup4kzevxlbk+r0 d:6y x e+6jy73/m jo 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 battery is connected to four resistors to form a simple cilj +o.jin+uw tzs f4zrv;g9 k53r cx.3rcuit as shown to the lwjju. xg +vf9r.+ro45it3kszn 3z;c 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 three resistors are con ddro a 39w(g1lltfos-*:d e0gnected as shown. Wg*dlflod 1rawe:d - go(ts9 03ith 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, a swa )0u-sf+t frqitch and three resistors are connected as shown. With the switch open as shown in the diagram t-rf0fsa)+ uqthe 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 resistors ad gnr4 +7aj7kgre connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampg j+77dn4k agreres.
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 circuitkn :blihn:y+(ww7g 8 n shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance:w7lh wyg(b8nnk +: in 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)be1je7a5 c 1t5qioaal8r mv( to the right with resistancetca11mlor5j5 ( v i 8aa7e)qebs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identi)7s etbg-tye72f:xoecal resistors connected in a combination series and parallel circuit to a voltage source. 2fx o7eb:eg)-7 t seyt
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 ident6+f0 0hivyjp kgw4r2t ical resistors connected in a combination 026 kihjrv ftw+y0p4gseries 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 ul0t).bum. so diagram, all of the bulbs are identical. Which bulluu0 )otbms.. b will 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 three ri:-. 3liwmz9 ddb5wo yesistors are connected as5dldz b9yw3 wii-m :.o 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an lo)vj3seubt)i qvh)j)b c)1 (ideal ammeter, a switch and three resistors are connected as shown. Wieb3i1) ))v(h t)qjvjs ublc)oth 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 xfuk84(v4 mti8 rfl 5eswitch and three resistors are connected as shown. With the switch open as shown in the dia ef 8xvi85lk(tr4m4 fugram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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