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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 r)me (:kt fz:rqu j,)yelectric current 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 th r:)(ue,) jrfq k:mtzye 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 paralije9tsm37w4 0lb5ii ylel, the_________each resistor istm7l 43 ii w0i5ejs9yb the 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 filame;ol yglgo5z :094kknu nt wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becausony;g5uz l: 90lk 4ogke

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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 replaced with Lw* ka .34bo h+vp+u3arqkd+hirt*b2tEDs. LED is the acronym for h+r3*tvbarkiqd.o2ht4k +* p a+ 3bu wwhich 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 a rr2(:nd)s5yi rb( npv:h5cfcrea A. It is to be placed into a circ5( ri:pvh)r b25f crn(c ny:sduit, 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 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 o.tuts 9ujhl5 9rl9v4 II has twice the diameter and twice the l r4vl.osu 99th 59ljutength 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 the same material but has twice the diameter vn nx ,/:b0l7h2pc8lev bq qy4and half the length of wire X. If wire X has a resistance of R then wireqclq y0xl 8n2nb:h v,vp 4/7be 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(o5n/ i/:l+pby s qp+e;euqol fhn14zv4vga6 length L and radius r. This piece of material is then drawn so that it is a cylinder with new +q4l hgaqb +o5pesy ;vln//1upn( fz o46iev: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 wants to make a brighter light bulb. He decides tox 5cq lh.qq5z* p qee9i.n1v. 0r)ilvu modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce .e .*ui 0vq5q ezi1q.qlcnx)5 p rh9lvmore 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 resis; 5y,e( gzjf4y 5 j0avuurhxac/g9ho.tors are made of the same material. The length and radius o,af/a;e4gyjj (50gx hh9ruuoz y. cv5f 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 batt)7:6by w msx3zzk6at eery 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 fourth resistor.” What is the equivalent resiswys m7xa)z ktz63be6:tance 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 intj acyc*i asw*tf*0 7w3ernal resistance 10.03*i*wjacfw0s *t 7yca kW and the ammeter has 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 pdlpl2v qr :ii3 xl4p7p1em9 8shown to the right. The three bulbs 1, 2, and 3 4i: pd p92px8llmepir13l q7v - represented as resistors 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 aooj+ +uerzw*q6w ae w-ze7dp(;g;qc)cs; y8 electrical circuit at the right. If the current in all three resistors is e ;yz ;uc;eqoqe7+wa(8)sae ro+d6cp jz *w-wgqual, which of the 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 /g4/kd 3to3i q;il9x.f wnfodelectric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb;il3 xnk dfw3/g.9it/q 4oofd (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 8/ o2ytp1ch3e buvsuz :x5b(bad 5+a itrue concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resist 5ui (hu:8x3 cb d+/ aovseb5ap2by1tzances?


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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 conne anza sxd3+1lim8oc)- zis2sl br1.m. cted in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit eleisls 3s+)m.a8bm 1nxo a1rl-.c zid2zments 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 coulombs will pass thro6xab2u+/v c adugh the identified resistor in 5 seconds once the cirv+2dxa6b u/accuit 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 the5k9 :fjsyz(z dca3z a( resistors in the following simple circuit have the same resistance, which would dissipatesc: zk5yjd 9(za3af(z 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 diagrahq tw u6epspu1j0lr+ p:380mpm, the current through the 6.0 Ω resistor is 1.0 A. What is t: 0utq3pp+8ejlhs6 rmp1w pu0he 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 are connected in series to a battery. Su /b. 8l( l5tgfgow.7nkuqk g8ippose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. Wh nqfo7k..8ggw/b( kl ugtli58at 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 andRg/.j r rhf7hg23 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and.rh 7g jh2/gfr 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 wafi j:l- ry15ectts and 120 volts. What is the maximum value of the current under these conj1rc 5l-ey fi: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 ng pn c. s-nn4q5a.*bh60 watt lightbulb designed to operate at 120 vo4sq n nn5-b.ag*.nphc lts?

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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 resistor that is dissipatinu*5gp j(vsfz t2qb :h1k,w; (f3e//iskjtfzwg 36 watts of powkhes:*kgbjj(v ft1q;w,2f 5i( // uw sfzpzt3er?

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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 presl;9d ;c3xa7 ck )pztjws clothes is marked "120 volt, 600 watt.” In zda 9tkp;x;73cc wlj)normal 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 resistances could NOT be produced by a circuf0oj, 1;r -r ak wdz-w*wyzt4wj.cjv(it containing only three identical 6Ω resi.v0-1* a4-zj; cdowytk w jfj(,wrwrzstors?

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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 eq5 ras*u3yy e3ruivalent resistances CANNOu53esayyrr *3 T be produced 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 different vaxb p:ucto/7)nnm3hu)egvt +- zib3k 6lues can be connected together in different nun7btu xep6 v)k)h3+t-b3:/zom g ciconfigurations. 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 connected to a battery, a totav z2v2g-q.hq vl power P is dissipated in the circuit. How much total power is dissipated in a 2v2 vhqg- vzq.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 an/h h9xwvj0 g(zanl; /qd R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements abo/x( nhv;/qh0la wjzg9 ut 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 it has a resistanzd. 6r2 (lfxa43 *ubtya nz3r1u,onloce of 12Ω when operating at 120 volts. What is the minimum amoulzo 14rrtuu f3 (63bnya,ozxd2*.na lnt 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 ma)f1uy v;,p 4mt bb/nthat is dissipating 36 waub1 fm;a /)mn,btyp 4vtts 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 heater draws 13 ajnn*nxz11 b( emperes of current when connected to 120 volts. If the price ezn*x11nn (j bof 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 lit ja1eurx *vw-/21r,l ;z zos)ncb3dmq continuously r)3;*oam ,qdzv2cbxu z n1lwe-1/ srjfor 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 results in a power o e j )ou+uhv9g uwa)ixr242tacx ;+iz.f 24.0 W associated with the bulb. Which one of .)4r zx i+a+etu ) uvc;9w2u2hijgaoxthe 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 w.2t/w i fyvy6tuov, /( lupn.gatts in a 120 V circuit. If all computers are plugged into a single circuit prot v(/u.26nwu/.yio,pgtvtlyf ected 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 circuit sz-f / 4)fgewg8chsxt8s7kk0 as shown to ks g /7h k-s)w xec4tffzsg088the 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 ci9 c)/it m.*fd*nb-pnio fva6trcuit as shown to the rig)fn-/9*vmt*6i ofi. tc adpbnht.
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 resistorso,g7 j 1kqhra9 are connected as shown. With the kh, 9qar7oj 1gswitch 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 ammete9zmoxqu4;e8;xlji75dp z l p+r, a switch and three resistors are connected as shown. W;lm4o;p8zqpex z97jxli u5 +dith 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 cy.pus y,u: ayqys(m- 3onnected as shown. With the switch open as shown in 3ypq,yy: -ymaus (.usthe 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 the right, 6wg5mc-gw 5lvadd 9k 3what is the equivalent resistance? Assume that all wires are m 5w5kvdggca3d96-l wideal, 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 6h rl6.pkjc59w n xjy)b+cio-cuit shown to the right with resistances6 wcb+p5).cn jixo-jr9k6ylh $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ident/ .ktc5jo)1b z,hm wmhical resistors connected in a combination series and parallel ci 5hk.c w)mtbj/o, mh1zrcuit 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 * e w0 3rcrxwcwl-/ntnyw893ushows five identical resistors connected in a combination series and parallel circuit to a voltage source rxwuwyc9r0n383n t-l/e* cww .
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,kyrx-l5oc+8bb zn 9c of the bulbs are identical. Which bulb will 9ol n, bzbrx5y-c+8ckbe 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 idealdc zz r8uxw6.w1x8rl( ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampe lxu6r(x zrwwdz c188.res.
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 resistors b7h7c;wzsz9 yare connected as shown. With the switch open as shown in the diagram the ammz; czs79 hb7yweter 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 n.rp z h(oc2m 58bh2no3 *vwvgswitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperegr5ov p(b2 ch* .23vonnwmhz 8s.
When the switch is closed, what would be the current in the circuit?


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