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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 curr.e yfx c pkgqt/gp*.6.e(we2 rent 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 of the elecpk.q/y*xepegw.6trg 2 .efc(tric 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________qx*br 3 c3 a1x7p(ubvo_each resistor is the same.7o v1xr b(3pbqua*c3x

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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 om(qi ;*gp8ex-lm;ap qd+ mb2 a lightbulb causes the filament to become wm;pmgxqe bp;dq-(oi28 a*l m+ hite hot, while the larger wires connected 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 lights are being replac 4o218 mkbnsyxed with LEDs. LED is the acronymn1by4sxkom8 2 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 L and cross-sectional area zylv8reo1hu( +3gpzx j9u62:p r p*snA. It is to be placed into a circuit, but it first must be cut in half so that the new leuv1 s3 x zppprgl yuzh 6rn9jo*(2e8:+ngth 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 qe,d3a ,qj( lw0dmx)q same material. Wire II has twice the diameter and twice the length of I. If j eq0m,3qqwa)xd,(dl 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 the same ltkfz2d y v6g:qd+k2+gg5j-nmaterial but has twice the diameter and half the length of wiref:qdyg kv+j g5l 2-2ztknd g6+ X. If wire X has a resistance 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 resistor has length L and radius r. Th r)d p4pco0n:kis piece of material is thenok rp:0)dpc4 n drawn so 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 wantszhcp2t0p1;l;g , t dn4kh*pu w 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 khucl phw;24nt 1z0tppdg *;, 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 ov-mjq r86 (uqbf the same material. The length and radius omb(j- v 6q8rquf 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 resistance R, are connected to a battery in the as+ 0 ct6+oqb)rb:qc)v6xy zcfollowing 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 qc)c:6 bt+x c+bz) 60yvarosqconnected 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 diag +gr,np9bnw3 yram has internal resistance 10.0 kW and the ammeter has+3 pwr9nnyb,g 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 circuit shown to the rightzm ttu( /(0 )pu;8tkk5,h3yxcpnx eq m. The three bulbs 1, 2, and 3 - represented as resistotx ,uh0pqyz ;nu/ e8mk mk3x5ct)t (p(rs 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 electrical cl,l) nxhhxru3/rr3b + ircuit at the right. If the current in all three resistors is equal, which of the following statements must be trh )hu/rnxx+rr3l,l b3ue?


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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 electric circuit composed of 1sr8sp v ecxe+s*14qd5 identical light bulbxvp se+*141dc8 qr sess 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 w13nmzn ocu1 t9o y;3efollowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistances1ent3zy ou1 9mwnc;o3?


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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 df4vqa1c2o ,9ab+7hahp9bcbmg ap / ;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 connected in parallel with each other to the same battery, which one of the following choices best represents what ,bbg9p; a q 2mvaoba 1+ c4hc7f9dpa/his 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 resijpvww/426e)wyt o 0ec stor in 5 seconds once the circuit was clj e20cwveop6 ty w/4w)osed?


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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 xnr 9vo; ww6 1d6:skkxcu9f-k in the following simple circuit have the same resistance, which would dissipatk9wcr66nufowxs k-:9d 1k x ;ve 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 6c4;n f bnic- *xm;f3(a4bcnam.0 Ω resistor is 1.0 A. What is the power su43 b f;nmafca;( x-ncbmi 4nc*pply 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 are connected in series to a qyd/ 5j)4kf 7ziptm l+k mwrd+;kxb/+ battery. Suppose R1 carries a current of 2.0 A, R2 hadwl+ mj7; dziykqx+p)rk4k5fm / b/+t s 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 andR9+ nnv1ngeta.3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is t+a n.v1tne9g nhe 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 qq r/v7yjgws w*xlh w+./ n(u6 6qsvt:maximum value of the curresn(7uvy+qg jqqrs. wvh:/ *t/6wx wl6nt under 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 h n9gicy q40q5nwo:5g 60 watt lightbulb designed to operate at 120 v9cgo5:hy4 0n wqng5i qolts?

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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 thrc3w 6p pxdx-+.0-:eizd1uu npxw;v::ng s d seough a 4 ohm resistor that is dissipating 36 wattsp: wniueg ;v-3upsxew:1n -dx d.6 cpz:ds0+x 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 iron used to press clothes is marked "120 volt, 60q- da t p5/gqo7zueq3qh z2:*s0 watt.” In normal use, the curren *qp:-e zzhqa7q5ds/o uq3t 2gt 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 ah al,yp3 n18slayf+ .nb,y0uhf*blk2 circuit containing only three identical 6Ω resistors?f n l 3h8uplblak,bh n2y.1*+y,0sfay

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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.utp).x9- .nx l p.jfdo+jyga2f:sr.t jmv5; o Which of the following equivalent resistances CANNOT be proddu.x .mg+on jfxftl.9ajp -rjys); 5v o2tp. :uced using 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 dfd3--e i-zv :x d8vrp 7adhm)lifferent values can be connected together in differenrz-fl id:- pea-)3vd7 mdv 8xht configurations. If all 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 resistor is con bc cbv p+.y-(8(rx9mf3wlmofg, .kaz nected to a battery, a total power P is dissipa8o ,9yffvclcpw+ am.zg x b(m-k.rb(3 ted 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 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 7n(5gahvu,h va16xy:o)zz njhm:2icparallel, the equivalent resistance of the combination ,a a(1vx :n)hg7uzvm6h2:y onch jiz5is 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 i+gg n74ouq3loe ju;;c t has a resistance of 12Ω when operating at 120 volts. ;guq+7 3;cgeo4u l nojWhat 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 currpg ur8ekqzpvqpm7:; h7 (x:k :ent flows through a 4 ohm resistor that is dissipating 36 watts of powe;ppqgk rxp8e7zvk: qu:7: (hm r?

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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 whnwd kbd m 67rdmc6:. adty(1a5 0tqbc;en connected to 120 volts. If the price of electricity is ;bmdacdbtqn76k (mr.0:y a6 dtwc51d $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 m;glkc/k7t:g -rsm cbnj /h xrj42s5 0urs))da 100W lightbulb lit continuously for 1 year at a rate o usx4tsjj r/))k h2rgb/0 7:cdc-lmnk; 5m rsgf $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 pfxr vyz)3* ,lA through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best reprpxrl,y z3)v *fesents 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 ofed rb/-3s(bfoi w ,t1s six owns a computer 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 be operatintfbrod /(ie31ssb -w,g 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 cirh 6(j5l*qof,/wpi 1i fqvir9dcuit as shown trfip9ifd/6(ov ljqq5 , w *1hio 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 circuitvf.l9c c5uy( b lyfcc 9v( 5b.uas 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 ideal ammeter, a switch and three resistors are connyi(q --)xgeqpe08w-29n o rr np6pgc pected as shown. With the switch open as showqe9n )o-p2i8wgrpep6--(grcqxyn 0 pn 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 ideat 0o ai,xhagl3j0 6*icrxs: +zl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rea0,axsr c*i0 gltxz6i +oa3h:jds 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 arenvgmz/-w/-.,yie sv w connected as shown. With the switch open as shown in the diagram the ammeter readzw/ w-mvgs / v.eyn,-is 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 the right, what is the equivalent resistancrgb7hwjh)z27 8ocov* o gp9m0e? Assume that all wires are idea2ph *v7 7c90hgr)obojo mzgw8 l, 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 resistance of the cir fbi(p *chsxv;6) l,frcuit shown to the right with resishf,fb; c i )*plr(vx6stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 mf5t9a 8xje17d ssa 4(ly 1gw.-doqjnidentical resistors connected in a combination series af9ndajyj. l te 1-w5sdaso1 q4 m7gx8(nd 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 connected inaz1 n0zfrsm;r uuy 3;1 a combination series and parallel circuit to a voltage;1;1f3n zua rusm zry0 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, mrj*i 0tiz-2ghf, ; is0kjlk 3all of the bulbs are identical. Which bulb will be the 2 kilztkm0irg0; hjf*s- 3j,ibrightest?


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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 kbc*7 )qfe( vxideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diec)qfv* bx( k7agram 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 ress a, 1cpwj26r nll(ngm7kq6(tfa 5.ju istors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.1a.lc5 sa ,wf7(2muj jnlgprt6(kq6 n0 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 jw1e/)d4 kgmy resistors are connected as shown. With the switch open as shown i k)jm4 e/dwyg1n 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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