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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 electrqxes 4/3*7:pb infk: y-gtvmcic 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 x:-k7/ vs 4itg* 3qmpn:y cefbthe 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 connedj )jgw;hfwpui 9y3:tv .j-r 1cs;y7 wcted in parallel, the_________each resisjgwidy3w:u; ry .;s)1 c-w9t j7fjphvtor is 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 filament wire of a bj(e;j l83nir 6vas1 blw5:zq lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becausej 8nel baz31(5 viq;lwb:j6rs

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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 lihad - g5ln 1*acx+f:u ,,rkxbjghts are being replaced with LEDs. LED is the acronym for which one of the following choicesr+c n,*5kxhjbf,la u1dxa:g-?

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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 A hqp mkt7d2i zljp2s 0 +i2i;g:vs)t4v. It is to be placed into a circuit, bsjtq;+4h07v2ksi ):2d2timipl vzp g ut 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 II has twilq7j l*( i6l/g nufo(9dn, gzzce the di6un/gj*7gl,(nld z9zq f lo i(ameter 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 thr3 )+viqnmbsyp3b h 6ng-((sm e same material but has twice the diameter and half the length of wire X. If wire X ha6s-n sg((pmnbvi3y m3r h+q) bs 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. This piece of ma+68wdl. y6dh2 w o p3 v8wii1bevr1akzterial is then drawn so th8w2.k1i d6pavo +81 36 eiwwvy bhdrzlat 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 wants to make a brighter light bulb. He ek rv40qz- tqk3xqyz ins 1*7(decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light atqvnkqxe (sz4zky q3*0t-1i r 7 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 of4k)y s:2xlx zu the same material. The length and radius of each res24:z )yuxksx listor 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 ba j 0tnot98xbk k4q,n kvn7d)+lttery in the following way: “Two resistors are conne lbtd9q+vxn k0 kjn4o )7t,8nkcted 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 voltmeter5lt3a ku4d3+w-pkucd in the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25dl5kktd pa c+34w-3uu .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 sgiwvuz2sf2.ow5kp cgm ;a5 6 2hown to the right. The three bulbs 1, 2, and 3 - repr5.ifz225cawkgms 6 pguwvo 2;esented 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 electrical ci*3 mli+tsi9b )qjb5i rrcuit at the right. If the current in all three resistors is equal, whichir3t*mj bi q9sl)i 5b+ 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 electrwklq,tqh+bcj07 c34qz .h b +cic circuit composed of 5 identical light bulbs hcq .q jcw l4b,z+bqc 0k3+t7hand 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 statemen3g ghu0 f 6v-x*7mkvupfd,:s nts is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equa* kgxn-:s6u mfp,gvfdu7vh 30 l 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 w,*,n v iln6nex9z ,pdare 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,e9dn xviplzw ,n*n, 6 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 coulowohu 9+mkmyxr5sazoo2lz/ *0: d k+6 vmbs will pass through the identified resistor in 5 seconds zzo 6+ 2mw uorms*hxoa0k9d/v+y:kl5 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 following simple circuit jl15 zi bzk*xh ij*2sc6z- ub9have the same resistance, which woul65 b9*zkbx2 -*1zsjh jzc iuild 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, z/5igs83i bzumsff ; 8the current through the 6.0 Ω resistor is 1.0 A. What is the power 3z;zf u ms5/gs8bf8ii 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, ax)2wgk ))4dp1vj y zmR2, 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 4dp2g1)xa)wvjzm ky ) 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 re;kc/m p pk(0yysistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R3?y0pm(k;/y p kc

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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 maezi mquz:z:6, ximum value of the current un: 6ziuq:m ,zzeder 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 s4rd 2sr g :ie-vh;nr1a 60 watt lightbulb designed to operate at 120 vo;g-n2:r s1 ri hdv4rselts?

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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 flo;hk pdnon)z1493 ndndws through a 4 ohm resistor that is dissipating 36 watts of power h39onn)nz;k dd1 4dnp?

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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 1-x xw7ofv ft5marked "120 volt, 600 watt.” In normal uvxo xt7wf -f15se, 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 co9 ,/v7( tpd87vdezyst qxb (kguld NOT be produced by a circuit containing o(vbs7p vd(t/9tq,gxk8ez yd7 nly 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 following equivalent chjuxu/)3p/ ;i 8p :bbyzx5(+dnwol oresistances CANNOT be produced using all three /ybhc)pzdo;(3: w /x5ljbu8 po uxin +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 can bt6 m4hfm xym.+v+jzr:e connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance camh+:j+ yxvzf rt4mm 6.n 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 tcwgaf+b/m ;s3o a battery, a total power P is dissipated in the circuit. How much total power is dissipated i3b/wamcsg ;f+ n 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 conyd6nq3c5 t 2gb/ *emg7gje hb.nected in parallel, the equivalent resistance of the combination is 5Ωe62yn mcg.7gb 3e5 *tbg/qdjh . 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 s uqoxrwhad720m*.qo ( uch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0 r ox0qm2du(aow*7h. q.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 w9u0zr 84twn;e8 bojr 36 watts of powerbw9zjn rte8 4r u;0wo8?

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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.(p2 s3f/rcux0u,cz0l mqpvj volts. If the price of electricity isp0c.mrj u,z2p(v/ q3u 0clxsf $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 continuo.lc:y4iwk5ae usly for 1 yea y5c4l.eak: iwr 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 aa 2. gsyenxv4+y n30pi power of 24.0 W associated with the bulb. Which os23ai.g p +4en yyv0xnne 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 fami io /g.y6ob;gj (p(u)2bc ygewly of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected b)y(b 6o g 2jpgw;cioby /u.g(ey 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 connroeq: 6bla n oals6360oh )*koected to four resistors to form a simple circuit elh)oa6 3ks :o*0anq6ro6lob 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 to four resistors to form a simple circuit 9jsvzc2a rwrd89ao5 . 4/ vy+1j0ekupij+dceas shown to the right.jrc v9/aju5e8j+ c+zidk4 d9aes1 p2 r0 y.wov
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 andw sw0)nq3iymw; x06yu)j2q px three resistors are connected as shown. With the switch open as shown in the diagram the wp3y2u0m)) ;w6 sq0q inxywjx 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 switch and three resistors are conglab)l4.cobmy-61gr7 jku d 9nected as shown. With the switch open as shown in the di lgj7c ob d4luar6by9k.-1) mgagram 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, yo/y me3dzm yepg:a.u 5e05( la switch and three resistors are connecmlpd.g30y :/aeym e 5o yz5e(uted as 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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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 resistance?q(ys+ufn1t3wf/tii + Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical nuts/wy+ff1( +i3qi tresistance 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 bd00bh3mx8 q9 o-14k)qy8 tf guf kfaathe circuit shown to the right with resistancqbha00f 8f odt)-1ykkx4u8qf 3mgba 9es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors connec8fftsb 2p)k;f8 dvh 3wulq3t7ted in a combination series and parallew38hp3q f7ut;f lbtsd)fv28k l 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 identicalo74*y s-+j abtaka-qx resistors connected in a combination setqoxb4a a y+7*jk sa--ries 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 di1t)sves z t/x+agram, all of the bulbs are identical. Which bulb will be the brv )s+estxz1 /tightest?


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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 arezyxi okln lr 0 13b7crh;jrytz,k m+ 2;.p)n,x connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes3;, r.x)onpb rtli2x 0+7;zhcyl1 nyzrk j,mk.
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 batto4 zj87d uzt-hk3evk x5/a 0tvery, an ideal ammeter, a switch and three resistors are connectehu/7xvd eat 0zkov8 534tkzj-d 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammems mh*-+r bz1yter, a switch and three resistors are connected as shown. With the switch open as shown1mz-+shm yb r* in the diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


参考答案:    
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