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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 8 bx ex n)7p3h*xvj)5tk1t0i xdrdildx6)9yoelectric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow throvrtdyi7)8p)ix*5x1j0 tx9 ldxd 3x6en khob )ugh 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 resistk9 q5hb po:,mz77zzjc ors are connected in parallel, the_________each resistor is the sam zzj7z kh57poc qb:,9me.

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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 lightbulb ,jvdgp,hk m,po5d5l c,;: chw causes the filament to become:pckodmw h,h ,lc,,p gd5j;5v white 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 light. z fw1dm2dy1jk3)nx)f rdlv:s are being replaced with LEDs. LED is the acronym for which one of yzdn3k d1w2:rf)lmxf.j 1d v)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 re9f ,m1+ n:vngjhjz( qtb1qj tcq3 rf76sistor 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 resistivity of the cylindrical resjbttf 3rq g6jv9z1f7 n:hn+qcm(q1,jistor?

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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 th( h bw:ngh;hx* 8xozz9e same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II hzx(:x h* gbonzw8hh9; as 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 the6taz9*dxkr x 3 diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a rx*a9 6kz3 xdtresistance 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 matevdpo40yit1; erial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of thp;oe t1 i0vdy4is 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 deeif vkkxs 9z+(ma819g cides to modify the filament. How should the filament of a lightbulb be modified in order to make the ei af+8(1k m9gvzs k9xlightbulb 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 resistors are made of the same materia*)kwj9 jnd t5sl. The length and radius of each resistor9n*djkt5 jw)s 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 ,+ 2sbs9i2gxd y bkie9i+xt)c;h vdo7battery 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.” cby9+9 xtdsedo gibh7k+ 2)xiv, s ;2i 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 accom kbnltncm;p3)( x2 q;bpanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resixcb)2( k;btp n3lqmn ;stance 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 circuit6elu8pn/z*e1 k)hjtk w i,2ve shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in uke ,ev8hw zt2pjk)ni6 1l/e* 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 t4odv f/v 4ftq:he right. If the current in all three resistors is equal:tfv qo/f4 d4v, 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 electric circuit g,c9ogn *u:f)l n+jkpcomposed of 5 identical light bulbs and 2 flashlight cells. Which , nfug:o pnkjc9g)+ l*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 concerning the simple 2) -g0txrmo7rxhs+wc circuit shown where resistors R1, R2 and R3 are have equal resista7wx0h+)crx o-2s rgtmnces?


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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 a battery. Bulb X i 71koeg ,m3dvbs 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 is ob3gmo7d,ev 1kbserved?


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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 coul b4oe/8 goqj+rombs will pass through the identified resistor in 5 second 8 4/o+gqbrjeos 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 resistiw 3x416 ifzcg5d;r uqors in the following simple circuit have the same resistance, which would dissipate the greatest po;4 5dir xw3u iczq6f1gwer?


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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 Ω2 rfqfp +x;q bd.6hx)q resistor is 1.0 A. What is the power ).fdxrh26pb qqxq;+ fsupply 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 r mo .kf:,9 .isjz7fncR3 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.onj:f,. r9m is7fzck .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;unn8j8)zttjt 9gw -uizl-h1 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 i18tji;t-zz8uug nt- 9j lwnh )n 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 rana;+ae:z :me-dob9dsted 1200 watts and 120 volts. What is the maximum value of th e+nb d-9a d:measoz:;e 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 of a 60 watt lightbulb designed *iisb 6e;f5g bto operate at 120 volts;bfs6ig b*ei5 ?

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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 disghhtzg ,+h tg -8os6r(sipating 36 watts8gs+totgrh,h (z g -6h 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 usiwqs59e7tnl l 1mz0is(2bx+ qed to press clothes is marked "120 volt, 600 watt.” Inm2t+ n wb i0i9zxssq5 (l17lqe 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 f0amd)xkd1 p3oollowing resistances could NOT be produced by a circuit containing only three idadx1k)d 0o3pmentical 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 fol t )yocie4zy 1v *vnj3droo*fbs99d3+lowing equivalent resistavnt ij y 3*9s1ob9*o )do 4f3ydez+cvrnces CANNOT 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 valuesbrlhg 4v1 hlv* u.s0l8 can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistl40u1vh. lb*h8glv r sance 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 total power y :yvkea4e8+qb avj d,ob+33aP is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are cyo8+ dq:aa3,vbbe aj+e34k y vonnected 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 R2lj..p q 7mu*; drns.fo, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the s7 pnqf. *;rod.um.ljresistances 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 r3 +p1mn.g g-pzic 0ztuesistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water frogn zpm0tgzicp1-+u 3.m $15^{\circ}C$ 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 diskqw2 vc 4./s4mespw.d9wjq up3, ckk6sipating 36 watts of powe3w/ .6 cp4k m9qe.j cpwd4wv2susqkk,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 when connected:)w;c tiv4arr to 120 volts. If the price of electricity irw4t)ci:;ar vs $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 contin -jw*5uxndr 0fuously for 1 year at a rate of wfrj-50x d*u n$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 atddz:rrxmd v4a37;(g78f b ta lightbulb results in a power of 24.0 W associated with thaz8;g d:(x 7v3 ta7rbtr4m ddfe bulb. 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 inilq 49+x j+rxfnvrm26 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 computersxi+xn9ml 4vj fq 6r2r+ 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 cirz 2oah:z/+a+thlzk1e fw )pf5cuit as show/e25t zh1 f+fokh+:wlzpz) a an 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 form58wexgnht- q7*+u a f(vvz5 ik a simple circuit as shv 7kv5a w u* 58+iq-fngzt(exhown 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 idealy7ufoz8 bl 1e (bci7z3 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(ozcy 837u7zfbli1 beres.
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 batterii )6o kiy95tp n8:ybdy, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads ikd8op5n :yi yit)69 b2.0 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 amm f54okf8 wew57rlta 9g/g qaq uvn(c4-eter, a switch and three resistors are connected as shown. With the switch open 9g5qw7alaqn4(fv5 ok utercg f -w8/4as 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 t 7yfsp wcz5l4)f5he3f+*wspt he equivalent resistance? Assume that all yepstw f)*5475+s3plfczwf h wires are ideal, 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 resistanc0 +ft2-j;; yxopsf fqmw6qc5cz9ome /e of the circuit shown to the right with resistanmzfex-p +y9c qfj6;/mf;ow2 5tc 0qosces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected in t,kt uxl/4pk+s.4u w kkc1e9ga combination series and parallel circuixk t. s ce+91k ukut44/gwpl,kt 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 ubt+tx9hf41a imke8 r r/uo77 five identical resistors connected in a combination series and parak7 +4m7ir/t 1fx htba 8ro9uuellel 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 diagram, all of the fav079 w/vd0bozj+r a bulbs are identical. Which bulb wi9+oaj rw7 b/ vdafv0z0ll be 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 ideal ammeter, a switch and three rikrn77 ztp)a zoo(4 r)esistors are connected as shown. With the switch open ao()iozz)4a7 nrt rk p7s 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 resistors are c:*q 5cy ow02tuzbs1u lonnected as shown. With the switch open as shown in the di u1b:zq0l 2 co5wyst*uagram 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 battery0u(3:;iwlv )1o2bkjy bpfd fd, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampedu 3klbjoi p()0dy12fbf:; v wres.
When the switch is closed, what would be the current in the circuit?


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