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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 exists in the metal rk: r963kndr nh xe*4wresistor connected to the bat6rx*3hr wkenn 9k4 d:rtery. 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 in parallel, the_________each rb,1q z,8 .xlm xt z87*avbqneqesistx1ba8b zmvnq,,t 8*q7 zlqxe.or 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 fo;4na; 5hhwzgj ; l j6u2foyy6ilament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the ligo5y zyhfw; 24g;6j6ju ohn;lahtbulb 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)rmtfh- 0s p3t LEDs. LED is the acronym for which one of the following choicess ht-tf0pm) r3?

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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 le6n.g0tu) ki dc eg08s33md gakngth 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 resu)eg0c0k 8a6gis g33t kn.dmdistor?

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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 x.)c/ p1 k8 (-weg zgd*ygcnzpthe same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, p1dzg8wnc- e/cgpy)zxg k ( *.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 th-qq7 yhed1 cws4v la0:e same material but has twice the diameter and half the length of wire X. If wire X has a resislqhyw- edqa741: c0vstance 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. Tqgmfaum 6 o3ffw91(om1 tf; 5lhis piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material13fmtaq;mfgwm1 9f6 (lufo 5 o 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 lih.acwz/l 6ybh g)wybyd* 0:l6x0f yq(ght bulb. He decides to modify the filament. How should the fila0w y(hygw)0bcx6b.*yl :6ldf/yqz ha ment 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:y0u few08jvx resistors are made of the same material. The length and radjfvew 8:yu0x 0ius 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, eacy2 d*ise rf1njeu, 0,dk cb56wh of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in paid 6,*e5ufcw r0bne,d2 y1kjsrallel 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 5( 57;sir:ix sw dbhxwdiagram 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 is 5sx75wb:(;r wiih xsdmost 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 circuitphylb7e l: w77 mcurkl+ib-- 3 shown to the right. The three bulbs 1, 2, and 3 - represented as r7 e+i:k llm37yb-u rhw7pcl- besistors 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 electrinw)k .eejlx z+g:.oyz m96 /uzcal circuit at the right. If the current in all three resistors is equal, which of the followg ) 6z:u.mewxjlyz .keo/n 9z+ing 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 of 5 8/i yo uv wibp31bonq(/e*3m pidentical light bulbs and 2 flashlightbmono(yip /iu313be*8 vq/p w 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 concerning the sapv63y hbel*qz h(s61k ;jg,ximple circuit shown where rek3 *y6hgz1xpbj va,eq(s6;hlsistors 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 s7w-/q v i/9g kcpa3ogzeries to a battery. Bulb X is brighter than bulb Y. g7-c v9ozikp3// wgaq 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 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 identifi u 1om-sk04jv0a2 jptged resistor in 5 seconds once the circuit -p oj 42v 1aks0gumt0jwas 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 spcqi5 ik+x g.lie3o3.imple circuit have the same resistance, which woul kc3x+igi3p..qli o5 ed 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 diagram0q v ;+phwhd,ph. /uno, the current through the 6.0 Ω resistor is 1.0 A. What is thep/ q+0.hn,hdpuo vwh; 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. Suppy8 z jpi8hv l+3r*nt.mxwa50xose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. Whatht3 8*z j+aml .x8v0pwri5n xy 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 k:gl9l2btm 7q are connected in parallel to a battery. lm2qblg:t7k9 Suppose R1 has 2V across it, R2 = 4Ω, 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 rated 1200 watts and 120 volts. What is(hn;q+/o1igdg gj9g v1a hog + the maximum value of the c 9o/ogggn dg v(g1+ahiq;1+jhurrent 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 txy vq436c 7qmb2u+vhpo operate at 120 voltq y m7 vpb6ux2cv4+hq3s?

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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 dissip pigj j12uf1h)ating 36 watts pi j1 2)ujg1fhof 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 marku1,rxklb 6zquonmj(z ( 74bk0ed "120 volt, 600 watt.” In normal use, the current il0znu( b1r7k(m6ujxz 4o k,q bn 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 relvqh6l0 sy2b8:tn wu) sistances could NOT be produced by a circuit containinys 0 bl)8:6tulv wh2qng 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 followinbz1 n+ 5wj:ckyv.gy v8g equivalent resistances CANNOT be produce1 5zknyyw:+vv .gcb j8d 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 o6pel2xo :(lv6yzqqp:y3 ua :t9 w k)0ipmy kn-f different values can be connected together in different configurations. If all three resistors are used in a ci2 qo)axei09 6pwyk(6lyu k:mn -:y: lzqv3tpprcuit, 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 amlkv2 ys4 im3: s9dm;z battery, a total power P is dissipated in 9;m2kz ydvim :3s4ls mthe circuit. 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 u-g:-rk/ daup R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of k:du-r gp a-u/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 it has a3xf nq)z j,2ug resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of watg2, ufx)nj3q zer 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 dissipiqtza4 x +my-f wqz8+1w/k6 spating 36 watts of poa6ps+yzm k-zi/w 4x fw8qq1t +wer?

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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 ofcnfwe60g1:7 /keu6 sasna v;t current when connected to 120 volts. If the price of ele a6ek17;ga cnn u/evt:ws60 sfctricity 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 lightbu q: lgu:e()4bsxauh:2u q d*eflb lit continuously for 1 year at a ragb:::qh*dx4l)eqeusu2 fa ( u te 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 powe: m )fxtp7ol)nngq s w-x2bdh7p4u9i7r of 24.0 W associated with the bulb. Which one of the following choices best represents tipw47u)q 77xgpx lftb2h )sond 9 n-m: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 5q+ gbq(mc3 vm;2 jvhi300 watts in 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 computers can be operati qg3(v mb2+;3mqj cihvng 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 circi/ pn kafoz .tv(2as40uit as shofavok 4s(. np0i/za t2wn 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 res( kjiebn0de4: istors to form a simple circuit as k di:0j(e b4neshown 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 and three resiskhf9/ 2r hl+nptors are connected as shown. With the switch open as shown in the diagram the ammeter re +h2nk/hpf9l rads 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 (jso95y+ jvw a switch and three resistors are connected as shown. With the s sjya vjw5o(+9witch 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 coug )5/jzmy*ru7klrb xula, z6t92 t r4nnected as shown. With the switch open as shown in the diagram z5 uy*xkrjgba, 9u zml6tu7/ rltr)42the 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 5gyyu7:anyorduk+-e lb8; f3 shown to the right, what is the equivalent resistance? Assume that all wires are idealu-y758yd3g + :uke;rnab foyl, 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 the right with rezl 3,p1re + +yhgalsobnzan0 *x .2z*ayr3 /ptsistanc3r3e/xl0l 2aszry+n .1toph z ,* a+bnz*ypages $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 cozyu4 6e )fg7smmbination series and parallel circuit to a 6 7m4 )ufszgyevoltage 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 connected in atbn(t a, gkn2sj5ra;. combination series and parallel circuit to,5t; atnnr.s2kb jg(a 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 yov) u4;mzd*d diagram, all of the bulbs are identical. Which bulbzm ;*oy)dv4d u will 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 resistors are ou,u- ur5xvs hn(; hr gq4x67gconnected as shown. (hquosx ,huvg7nurg x;r5 64-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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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 confshq4c: *2jn bnected as shown. With the switch open as shown in the diagram the ammeter 2jbhc qs:n* f4reads 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 threvn l,9jkc3: yee resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampel3,ekv9: jn ycres.
When the switch is closed, what would be the current in the circuit?


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