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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 exis.ghu8zjy l 73nts in the metal resistor connectez n .8hjug73yld to the battery. 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 i:,1agv e3tclczj0-ve yf73zkv; zb j3n parallel, the_________each resistor i-3c:y;31,zvje3 abkte7vc l zjg f0 zvs 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 t+s9jc8g r3 bc5+jvag dhin filament wire of a lightbulb causes the filament to bec g sb95r ccdvj3ag+j8+ome 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 lh-pvt(8y;p: kgy5d g xigt/6uights are being replaced with LEDs. LED is the acrgx5y- 86gtd p;tyuik:/hg p v(onym for which one of 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 gs);+m .xlaaz +k2onoy /nt *a6 zssh(rraphite resistor 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 tn (zx ma*a+;2st+kssl)y o.6z/h ronao 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 m3 x* tflgy: ahhus564lhj 5v5pade of the same material. Wire II has twice the diameter and twice theu ht*5fj:5s4lp hxhg6va l5y3 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 thel k-.8ixmjs t* same material but has twice the diameter and half the length of wire X. If wire X has a 8 -jtilx .k*smresistance 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. This7/pvpwc 3f(w/e-j ery 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 of this7c pj- //rwve3e(ywfp 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 decidebt jxmpf;k g*fp1 j193 sf.m2*zme 8sgs to modify the filament. How should the filamenf 8**fpf m g.s 2m;tjsj xgbez193kpm1t 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 resistors are made of the same material. Th r4k afhjsipu k 9lhyz8,2*z:1e length and radius of each rir,9lsu *yzf:1kzjk a24 h 8phesistor 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 u5h:b i,d(/rm 9qfwsg R, are connected to a battery in the following way: “Two resistors are coihfr,u q:smb5w g(d /9nnected 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 acco2xy 5e*38x9f4r m zm b4ktwxmgmpanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 mb32f4 *ezk5wg mx 4xtxm89ryohm. 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 shown to the right. The three bul9c4.dx t w2o9hsqox,t bs 1, 2, and 3 - represented as res9d.ox2q,coth4x 9wst istors 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.-pu3:socbc gwb;rk h jd)f;7- If the current in all three resistors is equal, which of the following statementh7fpkrs)c oj;w- u;b 3:d cbg-s 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 el-t-/pa-s sqy d*r:g ilectric circuit composed of 5 id--l/id: qsa *pgtrs-y entical light bulbs and 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 NOkb rpxzszz6 f-w 1)qbh0) 7lt6T true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal reqr6swkb7)6)f0x t1pzbzz hl -sistances?


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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 batterlu :v +h+a,wpuy. 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 followinulw+: a, vh+pug 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 wp35brcxj p/wg vrpf69- c9f.o/ c*c ylill pass through the identified resistor in p.oc9f-g*p9wb5ry c j/vr36/fl cxcp 5 seconds 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 cy+;qf0bxix w 4ircuit have the same resistance, +y;x qif0bxw 4which 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 cir,t m;qqlh-m5la*8xd7gn;u k ocuit diagram, the current through the 6.0 Ω resistor is 1.0 Aq,tnl x8 -m*5l q;7augkmhod;. 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, ax-ap9 p2li (8 3fp17y jzabyteti92yq y. kx+jnd 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 i9 aptp8y+yixbke-.2 7jxq3 9j ft y1 aiylp2(zs 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 connecfnz 0a8b/f/4u ldmw g:l8ozl(j2n j:eted in parallel to a battery. u02alezl8m z(njb8/jlw n :fof d:4/gSuppose 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 the maxc*m fqi ecrqy4q +;3 g3wc/-rwimum value of the current undewm+c*i4qwy3r;q cg fcq/er3 - r 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 wklfpc6* :x f5fatt lightbulb designed to operate at 120 vocpfflk:x5f 6* lts?

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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 ohmvt 0(mm9ct ex)m4py 0d resistor that is dissipating 36 watts of powx dy9 v)ttm0e40(pmcmer?

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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 marfl oe suvjh8:;uiv,-:uqq uz1; ;c8 ioly1s6uked "120 volt, 600 watt.” In normal use, the current in ;ou -c 8s:81,eq6osu;yiv;lz 1 lju f huqiuv: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 follownvv uyx88bvh1 bx.0d-* n5srp* 1lupring resistances could NOT be produced by a circuit containing onlv nsv 18rp*y 0*ubv-bpl8 hdu1 5x.rxny 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 threer( :b.laz4xs4h i w3dn 1.0 Ω resistors. Which of the following equivalent resistance srbx. hiwl44:3(z dnas 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 resistoo e/6y, xk9snrs2g39r5tmht i58ejbmrs of different values can be connected together in different configuray6eh b23nmsirkt9o 9ex8m 55s jr,/ tgtions. 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 resistor is connected to a battery, a total pdru+ gy5b f7ye+6lee3 sou08i ower P is dissipated in the circuit. How mge is d670ue y8obyu53efr++ luch 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, hcbhf6 l/y y/.r*o i6c,5zcemm aving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statement 5ccf66/y. /m, irzl*bmceoyhs 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 idw u6oy ,fdzo5g 3+3so3sdqn8t has a 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 water f+3zd do f3o68d ,so3uqgwsyn5rom $15^{\circ}C$ 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 thryvpv;m (esohbo3 1l80 ough a 4 ohm resistor that is dissipating 36 wavbhos8yv0p elm;1(o 3tts of power?

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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 am i:nme86 tjd(s5d xkd7peres of current when connected to 120 volts. If the price of electricidktedd7 x si n8(m65:jty 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 lightbulb liz)/k8 s8 pybsaf.2vz3b9 yone t continuously for 1 year at a n2sk /)a8bopsf3ye.8zyb v z9 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 a power4 hkj*0*buk qoel4 e*g of 24.0 W associated with the bulb. Which 0 4koelk* hj *eq*bgu4one 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 ateq ,ove(k u99j 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a jeue9 9( ,okvq20 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 connectedudxe vx93w x),; xkw+v to four resistors to form a simple circuit as shown to the ri, 9dev xk;v)3xuw+x xwght.
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 circ s9vkw-qnf26 luit as sh-k62 wnq sfvl9own 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 af 0t)jkum8u 8v c.gc0nmmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter 80 .0gunvcm8jc kftu)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 aw0 .njovy64tpb rn g*2mmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ab.64r02 wn* jyvp ngotmperes.
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 threeyvr*,9 0zxv qa resistors are connected as sa yv,qxv0 z*r9hown. 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 show)5glb *: /utaxk0l cn 3z.pfif1kt6ip n to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance R.5 il:x3.ukpac1p lfif0t*g 6z)/ ktnb


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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 re(v),rvz2ov symj a8+ csistance of the circuit shown to the right with resistanc(v8j),vrvoy+a 2mszces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 l+rs.db-j 9 ayshows five identical resistors connected in a combination series byrl + 9.sjd-aand 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 below1i:ze hty 2 lfwh4zk m 44x-udnt.1*ht shows five identical resistors connected in a combination series and parallel circuit to a volta2 k4xtyzhmlt1di -ne z.tf4h4:1*hwuge 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 bu)y*tim m 5yzrwarr13 6lbs are identical. Which bulb will be the i rm)1wrtyy* 6zam5r3 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 resistors1a3s b:a3lxjlt 8x fv- are connected as shown. Wia13-b t :lvsfxal83jx th 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 cwrs2c 2dw(/yb onnected as shown. With the switch open as shown i2 ywcdw2r/(bsn 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 three rtmp.tm/s 0uip c468ryesistors are connected as sho6pumpyt 04 8mrt. /sicwn. 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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