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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 circuit shown, an electric current exists.nyuwx 5b30iu in the metal resistor connected to the battery. Which one of the following choices best describes the directi.i uwn5ybxu03on 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_________each resi ,u. pdtgw(y :ys)uw:zstor is t:u szyd:,gyw wt .pu()he 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 wire aq..a4(y.e uf+vmx6u a3yzp sof a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain mucu4.v6..ys+mfape yax3 a qz (uh 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 replace:r8 6javry))loe l z4id with LEDs. LED is the acronym for w):yal 8ir )6rovezl4jhich 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 rtqmh/3so s+3bh0gcs;fkqa70 esistor 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. What is the ratio of the new resistivity to the old resiss;+7 /osgqkmf 00 a s3hbcqh3ttivity 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 md9j(sn*xr5 qof the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has *qd5(jx9n rm sresistance

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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 samp-q m.ns bia y*bytp h;06 )a5(l/omwje material but has twice the diameter and half the length of wire X. If wire X has a resis)m 5ql;ba6y *s 0p/tb.yp(hoj-wnmi atance of R then 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 resistodm u5 -nd9x4oar has length L and radius r. This piece of material is then drawn so that it is a cylinder wadx9m-un5 od4 ith 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 wazt 1 sptn:ba xz4dk5arr20y2 2nts to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a givettxa ka5:rp zn4 0y12b2dszr2 n 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 cylindrical6pbs6b dl k w2e*r(5zr resistors are made of the same material. The length and ra b6er kl(6 w5zb*2rdpsdius 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, eachn0z-g h9/3t zn ibitm5 o;mj 2*htl6so of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. Thish mot0/ ji6mbn5z ;9oz ilt2t*ng-h3s 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 dibbp x) q2. 0zkc4-xqxefvrb/gw5f -o+agram has internal resistance 10.0 kW and the ammeter has interxqzvb f4g)kf + erpx5bbq w0c-ox- 2./nal 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 circuit shown to the right. The three 99 ;bxd:6evp y b rz)ras93dvebulbs 1, 2, and 3 - represented as resistors in9sybpz;r:vex3a)dv9b d 96 er 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 circui* 38++a7n6di i6e nd 9zc lxupu.oavfht at the right. If the current in all three resistors is equal, which of the follau nu6f8.73h a9 6+ ivdxnc*eoipz+ldowing 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 ele:) k 7c dfkhr(dcd:14 cl7 nmtfl5d9rlctric circuit composed of 5 identical light bulbs and 2 flashlight cellcc7ck1n(rdhd)d f 7rtll:dk5: l 94fms. 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 co1wy oef,77 cj6c row9tncerning the simple circuit shown where resistors R1, R2 and Retw17,6o fwy c7jor 9c3 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 y6wu 9d b.sqx-g x670 ttuaa:ja 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 battery, which one of the following choices best represents a6 7d y .x-b:atxu gswq6jtu90what 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 coo3v)gfdol09/ a iy)f0gba2 osulombs will pass through the identified resistor in 5 seconds f/o 0go9gfb)iv) lo a23sady0 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 a ,t/7 +d;* c3s c,vgljjt3w8iwplvlc following simple circuit have the same resistance, whichljtj3wa,3c 8 /w,*g +cs;d7ivltv lc p 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 Ω7fn/rb ) 5:q rg:agb cixnyp,- resistor is:gnyn 7 r:)rxf p ,acbg-/qbi5 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,x,+eym /ix.s d R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2., y+sxi.e/d mx0 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 paralgi(pa7 1lkyx6p2 ldi/1hkn3 jlel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What isghj/3k lk1id16i(p2y x a7 lpn 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 maximsqmp b qp0x0 e4 v::ve4ew3dcgc.3)oynu ) qt(um value of the current under these con3sp :x:bgy3q4mqee o0n4)u)d pveqvct c.0w(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 designb03ayc.v 6yz.vj,.r gb bag8 ned to operate at 120 volv aya,38rybcz. b06..v gjng bts?

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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 floq5q.mmi7:ssx ws through a 4 ohm resistor that is dissipating 36 wattsqsq m.i7 :x5ms 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 ironz)uhcss+zpn 4 (7f7 uh used to press clothes is marked "120 volt, 600 watt.” In normal use, the current in ithf7su47 (+uznz)h pcs 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 followi m8w0)xq.1 pspo9 cjsing resistances could NOT be produced by a circuit containing only threepp 8.1isqxc)0s m9wjo 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. Whz+s0a v(t 3mdzhw)h+x ich of the following equivalent resistances CANNOT be produced using all three z 0+) mxh+dhtwvas(3zresistors?

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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 kiorud ;;t,lln4kn 73 of different values can be connected together in different configurations. If al url t,;ndo;l4k73ink l three resistors 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 resit1nq1(f3yfa s.xor 5zrb um+ 5stor 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? t 5+a m(3nbfyzfrs.ouq5rx1 1 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 connected in parallseb3 zs4,6rg7e 1g wpa oz0f*rel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistan rfzsgsb0ow *13eegpz6 ,4r 7aces 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 whemj). yytjk7kwt4nu* d eq5) 8fn operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water from)*n7u jfw5qtejykt .8yk )m4d $15^{\circ}C$ 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 bkby.i0l*fzh+5 +pl8h9bu bvuq 63lwgx40 lhflows through a 4 ohm resistor that is dissipating 36 wat*x+3 8fphhblylqi 9bl6wk 0+uh g uvb50b.4 zlts 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 heawfl i2cmoii4du 6 / o(u9z5n8rter draws 13 amperes of current when connected to 120 volts. If the n 9zi654o8 i/uc(iu ofdwlrm2 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 lightbulb ll qq4/)o3gf nnit continuously for 1 yearq3)4no/ql f gn 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 7xui6nbx0dxk +n k/ 4i)mj bu1of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the follkx)buii7xnjm b4/ 10ku +n6xdowing 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 watts in a trbye6t w3 im; so( /q8)pcgw4120 V circuit. If all computers are plugged into a sinrct( wsqtm )ey3/ 6ib;4pwgo8gle 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 circufb.bz3 /- fjljit as shown to the rz -fj.j3bflb /ight.
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 gz4veg/tm-o7/g dxet7r ak.(5,uj clto form a simple circuit asrtmkl4a(j-xd ceo/et .,u zvg5g 7g /7 shown 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 if2y*z/4;nr; db emmj ihqon- 6deal ammeter, a switch and three resistors are connected as shown. With the switch open as shown inb dqm2e/4;6ro njh im z-fn;y* 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 battefnmrt/e /1c(l c f,q2feit0ej; kxz+4ry, an ideal ammeter, a switch and three resistors are connect,fcf ltf+/k/j e en tr12mix;eq4 0z(ced as 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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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 are conn w(ft 6y5g.q3y *i 7krsyu2vdkmn6-xtected as shownvnrqs3f7.5(mk*6xty- g idk2yytw u6. 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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit shown to skx w85e- ag6fthe right, what is the equivalent resistance? Assume that all wires are ideal, the battery has5kae -gf 8xsw6 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 resistance of the circuit shown v q.zp*uton k26d:h .c*fod y) to the right with resistancesvc* uk no.2: qf6yd)*zp.t odh $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 re- tmt-kc+i.x s.fwo m: ,kswp-sistors connected in a combination series and parallel circuit to a vx:f-om s-c.+tp.k wmk tw-,i soltage 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 combina ee(.i9)y2fkj see34 pjr32pwcwg , yction series and parallel circuit to a voltage soure kje22 y.3,)wfjw 4gee p(pcsciyr 39ce.
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 identical. Whic12t 0x2c(bj)b v s;5zbpljbvvh bulb will be thebvzvc 2l1bb; )0j bx (v2sjt5p 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 resistor s4hj6o4c hqt98 3royin6lf;ns are connected as shown. With the switch open as yc4jsf89ot 6hqh;nr n6lio43 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 switch and three resistorff kt50(e60 kl; tuwv40nhvjts are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amper n 00wjv64t0tkf k;e lhf(u5tves.
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 threeju6x4e sab 5uiv m9c1yati8vvl+v,5 9 resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampereuej auyb61cs8,99im4 5t+vvlvia5xvs.
When the switch is closed, what would be the current in the circuit?


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