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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, i /0qdzhb5l/ xan electric current exists in the metal resistor connected to the battery. 05ixz /ldqhb/Which one of the following choices 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 q)b*q4 0vqdag )elq a/in parallel, the_________each resistor is the sa)baq*e g/vqq0l )4qd ame.

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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 l/(eqxonlkhf* yd7tt6 qj59s6 ightbulb causes the filament to become white hot, while the larger*oj6 q( s5f7nyk9/t qdx htl6e 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 replaced with LEDs. LED is9 )eht neknxt-f :msbqn96n /wo 41y/o the acronym for which one of the followingq /:fxw/t 1)nsmknon ho9 ye49ntb6e- 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-sg nmimr8w. la:r,uxw1 5l7am/ectional area A. It is to be placed into a circuit, but it first must b/ml8 :mlm7awru.r,a xw gn51ie 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 samxrftebbxuol-.ru )36 /ip *pn5j74k ie material. Wire II has twice the diameter and twice the length of I. u* kx/retinjpl4b6pxu3 obf- i.5r7) 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 :us 8ckm d ml3q0u,di *.tci)sdiameter and half the length of wire X. If wire X has a resistance of R l.iumq 3 ctskmdd:0*8,s) u icthen 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 lengnr (x/,+tihu ca(d0y jth 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 resistance o0ucy+drna ,/( (hijxtf 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 Thomcna,; uwj+m7s *w lt0has Edison wants to make a brighter light bulb. He decides to modify the filamen07+snwh*cm ut ,lawj ;t. 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 resist qdod2u/4fcpgf :h2r :ors are made of the same material. The length and radiu24f :c qgp:d/2 hodufrs 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 o55lu )vbh9i qlf resistance R, are connected to a battery in the following way)hv5 b ui9l5ql: “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 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 intek ,yuj*dh 0(shqf-7hernal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is q -hj(u*,7 dy0hk sehf1.00 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 bulbs 1, 2, k0i0d bqzidkz4j. 9.00lan+pufi (vtand 3 - represented as zqt n90ki0(pudf 4ziavdl ij0.0.b+kresistors 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 circuit at the right. If the current in allxs ecn/i*rflt : 3 hys3.gd jm;2etm0) three resistors is equal, which of the following statements must be tr. 3emt32yn/x* rd0s th;m)lej :sfcig ue?


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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 electric5ou)p - te0gia circuit composed of 5 identical light bulbs and 2 0io-p5 atug)eflashlight 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 following6 2gxh:juzq:ux w3x;s statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resis uqu;xx :w:xsg62 3zjhtances?


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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 inr */wvws/qptq7z 2xc1, tmx-t 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 other7wq1mtc twq /*,-zpx /tv2s xr 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 through the identified resistor elefn-lrs; 85e r 6c0bbd. d5sin 5 seconds once the e. de0-6;lrsb 5n lrbfde8c5s 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 followingnwfq05 4 jr,lv simple circuit have the same resisln q 5fw40,vjrtance, 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 diagram, the k3xh3+jfo g5 zl:hl 21 5bxcsacurrent through the 6.0 Ω resistor is 1.0 A. What is the power suppl531h :hgkzcl3j5 o2slfax xb +y 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, R2jk c3o;cs r5y9, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 k c5sj 9;y3ocrhas 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 con cj0 e86)nkzr1sxdtt4nected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, z1r jtxk8s4e0) tn6dcand 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 ankqg)tb:awcq03nz q +m ;-5fted 120 volts. What is the maximum value of thefcg0 5qm k q eawnbz-tq3+)t:; current 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 ofz4a-2vu- yuzj ai(: iw a 60 watt lightbulb designed to operate at 120 voltzj izu-iva(u a4 yw-2:s?

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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 dissipating 36 wa*su*b.py. ,m2y wfbse tts yu..fwm2bsp,be s **yof 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 o *8inp4g in,k t(4xxrmarked "120 volt, 600 watt.” In no(4otnnk ,i 8ig 4xrxp*rmal 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 cd,5d,hb u1ue8d zvca ihlw; 62ould NOT be produced by a circuit contaivew6uu ,bahd, i;h 5l d2zdc81ning 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 of the rnqkva rs2b:o;b:/1bmd ;z,bfollowing equivalent resistances CANNOT be produced using;v1r,q : rbzbd:sa2/ mk;bnob 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 values h /mzm -b8jgmh+au5:z can be connected together in differenb8+ /- :zammhmjguzh5 t 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 resisx0rf zq z4d) )uwn;8yf)0 lcfwtor is connected to a battery, a total power P is dissipated in the circuit. Ho)n) 8;0 4lydcxfwwzqf u)fr0zw 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 connecte p0hoqi i7:hsckrk4 22d in parallel, the equivalent resistance of the combinatii2kh4k i0op7csrq2h :on is 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 iqc6- t-mvid 1zt has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to -mcd1 tzqv-6iwarm 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 flo 1yivu0t( wr+e /2t,5qx 3 9tvfd7sgiidezt 5bws through a 4 ohm resistor that is dissipating 36 watts of power?t5sxt,9ii7 q yv 0eidztgt13rwd +b/fe2uv5 (

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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 dm:bmd1;g lbuyoa;qh; 1/9 qi nraws 13 amperes of current when connected to 120 volts. If the price of eidybab;1q1 ngm9:/m; qlou h ;lectricity 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 woulzy4pgru*5+x aiy d8+ hd it cost to keep a 100W lightbulb lit continuously for 1 year at dy a5ip+g4y+zr8 hxu*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 ic09ti ((i-+thpi ev tq)b;wibn a power of 24.0 W associated with the bet 9tii qph(;+iw)(b0tib -v culb. Which one of the 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 watts in a 12n ) ihqvea-)e e,2c0ht0 V circuit. If all computers are plugged into a single circuit protecceq- ,iv)taehn0 he2 )ted 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 for*bb vo; (f*nacm a simple circuit vfn(b;o *cba*as shown to 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 bb 1pfn2luc1 ea(y *2od,oq3dto four resistors to form a simple circuit as shown to the righl(o 31y1d*2n u2,cobpqe a dbft.
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 resisgbq - h3u*mt8ppqktvvl wp9fs3l,)5;tors are conn s;hb3q g3ptwlpvu9v8 q-tk lp)5,*f mected as 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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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, /jkak e7v1 e,y2s i2tba switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere7,eky2/tes vi1abj2 ks.
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 resistnx gwabz047(jors are connected as shown. With the switch open as shown in the xagw n47zbj0( 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, what is the equivalent rers k// +dhe0uedm-g 07h0nqa n6fs u0);utfhksistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resis s6hqfndtd-) uhfuukahkes00 e 70 n+m/0;gr /tors 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 taf(v 8t3d4ogbmc2 /.wlw oi1 gma17zl o the right with resis1 agm gt17 lv(b8.ilw2c/oa o d3fwm4ztances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resi,fl+ ,nl.w nc/ua 3sgystors connected in a combination series and pa/s,wflau,+n3 nl cg.yrallel 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 me161q yzrxpg 4 s(ft1five identical resistors connected in a combination gfpq 1xys1t6r( m1z4 eseries 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 6jsj, 8hjvs . 2hw126peybyal diagram, all of the bulbs are identical. Which bulb will be the brig 1j ljhybv2 a626swhs.,y ep8jhtest?


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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 resistors aremp t-v e.h9u 3g)m++ a0lasodu connected as shown. With the switch open as shown in the diagram the ammeter reumvp9 ate-) g0u++aso3lm h.d ads 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, skrd7;.ljo+.vd 6.mw, u fhn,wml 4y na switch and three resistors are connected as shown. With the switch open as .md+w. 4dn r yfvsh,6,7 kojl m;.nwulshown 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 id/2b dt:yw nhl(q8n5hseal ammeter, a switch and three resistors are connected asn/q( ts 8hw5ndly: hb2 shown. 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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