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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 current oworpnxjibaf0kt j66zf)3r w / +0/.sexists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electrab r6ftfo.w j6pszi)o0x /wrnjk0/3 +on 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 x5a3eut6*gr gare connected in parallel, the_________each resistor is the same.aer5 xtgug*3 6

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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 thing5ar6uzqy +(pk .te p) filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbuq ye 6+u a5gr.p)k(pztlb 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 repla45t,xz hsp m*dced with LEDs. LED is the acronym for which one of the followis5z4md *xhp ,tng 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-sec9 2xpo / qxu32ivof.lbu3trh7tional 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 resistp/rufxqbl v3i9. 22hoou 73xtor?

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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 II5zr(-c s+hcz4pn2 1gqht,xg u are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has hc , p q4uc+snz-zx2hrtgg( 51resistance

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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 and half7u;bsva 6utf : the length of wire X. If wire X has a resistance of R then wire Y would have a resistance6uvs u;bft7:a 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 m s4m u)mi,w*t nrb9(zresistor has length 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 of this material because b)s m(t, winrmm4*u9zof 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 e4 kv3vah19qnjyh. l r+ol 8c*decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more lig* on4 9 1jlvhc+8qker3lv.ayhht 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 resi erk/ltd,*fd 8:qbom3 stors are made of the same material. The length and radius of m:fd q 3to/k,ld8 bre*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 conn tky.d 8/g;8bob1l jrnected to a battery 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.” Wh8bdr.nl18gtjok ; y b/at 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 acvslkso)ntf5dg 0et2c8-r22c companying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading t8r) 0d 22co2c e-nk5fst svlgis 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 fx m4 9/ )2ua3a.fpj-tkcbgkx shown to the right. The three bulbs 1, 2, and mxf/ p4tkxfk-gbu2 3c a.9a)j3 - 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 electrical circuit at the right. If the p(j ptu yi+sql g3c,lf);r2:*cu952pkmgb rocurrent in all thry qcj5b),pgc2r2 (mps3*lrgo fi; l:+ tupk9u ee resistors is equal, 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 composed:(z7b- dountgiu3l) c of 5 identical light bulbs anizcn- (g3btod )l7u:ud 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 statements is NOT true colas jh6k4 kdk2h/of/z2v/5sancerning the simple circuit shown where resistors/6a4o h kdfs/l 5zkj2ka/v h2s R1, R2 and R3 are have equal 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 are connected in series to a battery. Bulb X isx k(2q1lihnigt 9vnyl/x/* f. g+n-s t 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 represenyg-/f g*xnkn/9 tt ih .xil(+ s2q1vlnts 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 /b, f/g f4 wnoh;)1mb7 vnl-vx+zrx lm through the identified resistor in 5 seconds once the c w4bvo+vlmh z,mfgf bl/r-xnn1 )x/ ;7ircuit 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 clnze5/(k /tq7,x ybmwnex 6 5simple circuit have the same resistance, which would dissipate the greatest5 n( 7yzq tl//xc5mkwneex,b 6 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 circuitn/8k99 rxbehk:csa ) y diagram, the current through the 6.0 Ω resistor is 1.0 shkc nx9k:y9 raeb)/8A. What is the 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 cssk+h9xoyo(; o),*v;oqc d fhvgf bwd,5,qg5 onnected 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 is the voltage, wox) soh;fbg5+5kcygv(dq *f;,s9o qd, ohv 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 connected in p* s6d zj( f 5r/wvkkht)pcp1r9arallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω,k p)cjvfrz1 5 tw/sr9d(*6hkp and 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 ratedqiq0q ozha0h* yq0; p; h+2iim 1200 watts and 120 volts. What is the maximum value of the current uny+ 0oq*0zhm ai20hqp;iq ; hiqder 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 to operar *5-fbtij. xnr66x9mit:kx ote at 120 vo* 6r:6ixn5x t o.k9jxbmir-ftlts?

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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 resissw/ebu3lswfk5 )(./3 vgtuu itor that is dissipating 36 watts of powerswe3/kw5(/ .3istv)fguu lub ?

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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, 600 watttj8e+s2 wqy+d+k5d j 5(mam fv.” In normal use, the cu 5(28sdjt+5k+fa dmjy qm +ewvrrent 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 N8sgouod6 *uy 8OT be produced by a circuit contains gy6uoo8*u 8ding 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 resistorsp0eh7.m2l p0wj)kd h cm ,m+jo. Which of the following equivalent resistances CANNOT be produced using all t com e,m700wjp+lk.)pd2h hjm hree 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 bcbk23w5 yeae7sofh* we-7,r ve connected together in different configurations. If all three resistors are used in a circuit, how manak rws,h7fb ov3ee*-5we7 2yc y 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 resis0qw (0 tram ec29;poirtor is connected to a battery, a total power P is dissipated in the ci aoer qrc i(0p90wm;2trcuit. 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, ajne-+3+l kh69al(cwpr faf u7 re connected in parallel, the equivalen73llk+(j69 facu-nrh +fw ae pt resistance of the combination 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 hd7huf o5xy((1 f, qzcthat it has a resistance of 12Ω when operating at 120 volts. What is the minimum amou dy,o5fcf1(zqh7( h xunt 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 that 6jm2r+fxo 3zl8z 4ma9wbs vey j2 dq)8is dissipating 36 watts of powersx lfmj+dyq8 6o4ez2 vj)289 wza3bmr?

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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 vbgq *em)4w s 1k*snbb/olts. If the price of electk* )nwqbm/ *es gb1sb4ricity 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 100 gdom1zuwp2 r3/qug1( W lightbulb lit continuouslyuupdr 1og(wmz2/13gq for 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 .(gd7)m mj;b sk+ti./.*cwncnv ub aia power of 24.0 W associated with the bulb. Which one of the following choices best represents tdb tiv./bns jg..(i7 muc;*n w ma)ck+he 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 0rj)kfjr -9rhhiqj*: 500 watts in a 120 V circuit. If all computers are plugged iijk-qhf9j)*r j r:hr 0nto a single circuit protected 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 toweunhh;nh1wq+or+ay t0. (.y four resistors to form a simple circuit as1nnh.e0;ty+.oywau w +rqh h( 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 batt oy24+fomha a+ery is connected to four resistors to form a simple circuit asay2mo af o+4+h 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 annvvi17e1 tb x.d three resistors are connected as show1ev1.ibtvn 7 xn. 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 am /w8yacgas*n* ft:bupo b(;y *meter, a switch and three resistors are connected as shown. With the switch open as shown in thc* obau*8*(b yp ;wtfns/y ga:e 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 a/oawq6si s:tcl1 th, us,w+0resistors are connected as shown.:u,,wshwtcs oqt01 a+l i6s/a 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 )d1 c2;bqmtge to the right, what is the equivalent resistance? Assume td)1qec 2tbg; mhat all 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 resistance of the circuit shown to fs9e)p u9 oh,x the right with resistanepos9,) xhf9 uces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a combinat(1qfn +qr hnm3io1 qmhrf(nq+3n n series and 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 connd ky7--y csgjgbb/gs.0k ,w0d ected in a combination ssd- -0. 7c,0gkbwygykjs g/db eries 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 diagram, all of the bulbs are identical. Which bfe/ieq0 p3*id ulb will be the brightest?0efqip3ed*/ i


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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 e/3qu d7ij0izyq2c5b, a switch and three resistors are connected as shown. With the switc zbyq 0cii2j753/qeduh 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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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 ax*,ij(hzo4v;b q)vyz nd three resistors are connected as shobhvz ,)iq*4;oj(vx yz wn. 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 ammeter, a switch and thre yhx9(67, nnt4w lgxkgo0 o:owe resistors are connected a7w wgtxlgn6k9 xn:,o0 (y4 ohos 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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    总分:50分 及格:30分 时间:不限时
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