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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 g8 qtvb/k)9ggga8(m l shown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices bet8ag m /b)9kggg ql8v(st 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, 5k-gstnai-h 9 j )d6k1:v)bzsfnje 6lthe_________each resistor hjn-e bkzlkgji6 :dfv-ns)ts5 )a196is 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 lightbulb causes 1 ;mw8v+(rgiosd tx8xthe filament to become white hot, while the larger wires connecte(mgi sr+8vx1w;t x8do d 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 lights are being replaced with LEDs.z4ydd-m:fi i5 LED is the acronym for whd-m5 zdi4:if yich 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 graphite resistor has length L and crose*:n 7b ,ojka5cu- kbbs-sectional area A. I*c kabuk75:nbboj -e ,t 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 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 sq *r7zw2 fwm xrw.xd.5ame material. Wire II has twice the diameter and twice the length of I. 5x7r*.fwwqz x2m r wd. 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 the same material but has twice the diameter and4. i.gf4xidm*kzeu b: half the length of wire X. If wire X has a resistance of R then wire Y would hav dmu.z: f4 xbi4i*k.ege 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 rwjwy3/:uy1k ex;h(b oi sm75l esistor 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 materia7u w: ;x/he1o (miwyk3by 5sjll 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 brigqn( g0e aq)w9wgmzql0s9 9m m:l+r*oshter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified 9( q)zn w+*0gergmws mlm: 9saq 9ql0oin 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. n po.v9wk 0e(wjux(w (The length and o9n((wkjw xvw(. uep0 radius 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, each of resistance R, are connected to a batz ihkg10kpx*rrm c d*7. nm71:*jvmuntery in the followinkp1* rj.rn*ixm7 :1 dcmkzhg0 nm7u* vg 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.” 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 sm 3 d;*eg5r6(pquelwn:)4bxexj* craccompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter rea*qrg:m e3wp(l4ubds6)n c;rex *e 5jx ding 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 j ;0p /2lkbefgcircuit shown to the right. The three bulbs 1, 2, and 3 - represented f b/ g0l2pkej;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 cm np6mbld; xri6vql mbmg: fl070, tkmzp 0*3,urrent in all three resistors is equal, which of the following statemenlmp;6tk:pl7brgmvx 0 lq bz0fn,*mdi6m0m3,ts 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 e5ee8po7h b1vtlectric circuit composed of 5 identical light bulbs and 2 flabvteo5h 81ep7 shlight 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 tr3nq- dp(p5uggd tt:qa2i7 (slue concerning the simple circuiqdldgup(3g : -25apt(t in 7sqt shown where resistors 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 ju 7e9r j)8as4d nlyt yt-(s)z2i wj2uandY are 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 followiaudl2 (j4s 7-t tseyurn2izjj)y)9w8 ng 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 identified resn4 urz57xkbp c.w3 a(mvc/(f yistor in 5 secc3pmn rc ka 5z(4wyb(/ 7v.ufxonds 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 have the s8tt+ uol rh1m+jd44vc-q ct8eame resistance,qchjv te t8+4l rt+d8m41c o-u which 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 circuit diagram, the (oolga0gj xdf-1,o g- current through the 6.0 Ω resistor is f( ,dogl-x0g a 1-ojgo 1.0 A. 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, arw;h 8kml1 ze.nd R3 are connected in series to a battery. Suppose R1 carries a current of 2.01km8w.; ez hrl A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 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 andR3 are connewayrmq6uf0 0) cted in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissip00ruyqw fm6)aates 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 waz t(u iwv* -wvzl7.wx.tts and 120 volts. What is the maximum value of the-vl zzw*wuw.iv( t.x7 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 ixsri8efw6o9 w6- y7 qdesigned to operate at 120 voly 7 fs8i-wqixwo9er 66ts?

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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 rebm0k6q9(ate k64 )sm*wldicl sistor that is dissipating 36 wat46mcw)aeisb k6 0 mld9qtk(* lts 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 used to press clothes is marked "120 volt, 600 watt.” In )0wbwg fl/l/ef(goh* normal use, th whl *f0bgf/)e(lgwo/ e 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 could NOT beu7yzihn w162p ypbz- 4 produced by a circuit containing only threeynzi21-z4b7 wph up6y 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 resisdqr *rgz b+ qo9;5icr2tors. Which of the following equivalent resistances CANNOT be produced using all three resistors?qr czi oq 2;brr9dg+*5

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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 be connected together ib77cm:tk o 7ww5 tkif5n different configurations. If all three resisw 7b:wktc7755 ifmtkotors 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 bada )aminnu ,m2;ly6-i ttery, a total power P is dissipated in the 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 bat6a min-l 2;mi),dyu natery 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, havingm,esl 7hiq . ( / *hk9a8w)6odptctzlm resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statementshmi cdme*t (w ptq. o)lhsz,l8 967/ak 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 )lk6t w)trjkc6y/dy7 admzr0pv o69 ;a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time ttkd6 k 9z owvj)6 ;c)0tyr7lpdmary6/hat 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 f xm nq(v*rrdx: n6uc9.e5 e)ezlows through a 4 ohm resistor that is dissipating 36 watts of po6rqv: nuzeec ) d5m*.9en(rxxwer?

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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 connectedn: usppm9 kp q+y-u e.a2tpzr( 9/0ebq to 120 volts. If the price of el09r stm.:q(kquapp2/9 bz+eue py- pnectricity 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 wols 0t (tiq58d0h3e)t kh7pk bould it cost to keep a 100W lightbulb lit continuously for 1 year at a rate o)8(0ltois3pqtkhe 05hd7 bt kf $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 pow od +bb)ygcidkl3 dcd( /e,+s,er of 24.0 W associated with the bulb. Which one of t3d,b ( d, )kyei/oscgcdbl +d+he 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 c5gn e j;bdiu)2omputer rated at 500 watts in a 120 Vg2enj;5di u )b 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 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 batter r ,q)duw.edx7y is connected to four resistors to form a simple circuit as shown to theu)ed d,. 7qwrx 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 boo,v. prf,g5u2s n :zas shown to the rightv,gp r:oo2s, bzunf.5 .
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 switcwjh:v1jkj t/ff )0rk- h and three resistors are connected as shown. With the switch open as shown in thvk: /jr 01jtfhjwf)-ke 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 ammeter, a switch and three resistor (rwnke w4oy9c1n6ob2s are connected as s29(o 6rk41ncw ewn boyhown. 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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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 t54f3w42 2stamim u ozhhree resistors are connected as shown. With the switch open as shown in the diagt2o mfw 32zi4 amhus45ram 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 sy 8tb5 j)5xja fa)d+eq *( 6ythvcx(wthe equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three retc6( )*qeyxa+5t jf5vah (8xwdsy)j bsistors 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 wz8zq 0i0/barw:dm1 snith resistances r1d/zw a n8b00szqi: m$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ide+wxknbazdwz.ifp. 8 1- uap:0ntical resistors connected in a combination series and parallel cir.bwx u8p wap n1i. :f0adz+zk-cuit 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 connected in a combinatv; f5fvdj5) uhq tlj8p2 r0w6dion 0 ju2tp 5v;jvw5f6q dd8h)lfrseries 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 diagrg(uxztd/m +;zdh 66cyzy9n7w am, all of the bulbs are identical. Which bulb will be t6g7+/hzn y ddtwm 6(u;z9c xzyhe 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 ammeteg;6d9.jrccco42m i eifrz 78 ur, a switch and three resistors are connected as shown. With the switch open as shown in thezorrdj. cm8i7 cu4e 92;f gci6 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 af33 laowa8w au5ok31ummeter, a switch and three resistors are connected as shown. Wit uf33u8 a 3w1alokaow5h 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 ammetg3)(i-tknlxlw7* t69 fpatoerjv73ker, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.i att()ktlp7ko f639r l7v* g3xjnw-e0 amperes.
When the switch is closed, what would be the current in the circuit?


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