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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 e -sf)9c 4mybhdlectric current exists in the metal resistor connected to the batteh s mc4)d-bf9yry. 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 resistor z2dp-1l j;dnugkek*:s are connected in parallel, the_________each resistor is the sa zdu2e-:1pdk*;n gljkme.

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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 thinl-24 b,r51 t.ky *ybbvqogp cx )kqio9 filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This hap-.koqtyk1i )cb2yq, b9b*r l oxv 4g5ppens 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. LED pcbqk))7+kik is the acronym for which onepq kbik)ck+ 7) 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 rekbnkkl(rekbu+-/ bb ii6 9--osistor has length L and cross-sectional area A. It is to be placed into a circ+ub9krkbeo k ii(n-b -6kb/-l uit, 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 Istyks86;mvw9hj -nd 4I 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 t9mwdy;j -s6 4hknvs8 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 diamelbw 5,cv/ ,jgt9muzy dlm)73nter and half the length of wire X. If wire X has a resistance of R then wire Y would havenbu9 vyj),wt m/l3z7 l5d,gcm 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. This piece of matenbcft96 s:; qorial is then drawn so 6 otqsfn;b 9c:that it is a cylinder with new length 2L. What happens to the resistance of this material 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 Thomase0 ;x,2l 5ilzur(avxyo gi ,8a Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament 2o,aevxil(;l xyi,zr5u0ag8 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 avqspsbftb 7p m9f 5va/o2.; x-re made of the same material. The length and radius of each resistor ia-sp;/v fsbf9 7tv.2qxo5pm bs:
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 of9itubizrk .025;s5foxw (tgv 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 parallel to a third resistor. This set of three resistors is c9zgt5 wub rifkxvt;0( o.25 sionnected 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 diagra-4wq k96t xdzu *, 3jgspq1kr/-iodyd m has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter readingu-1 rqd, o6wxyzq9g *-3kidk/4jdt ps 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 c, 6djdat+;ayshown to the right. The three bulbs 1, 2, and 3 - represented as resi+tycjda 6d ,a;stors 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. Ifl.* pz7 0rbm5sz *y l6bffi2ji the current in all three resistors is equal, which of the folll rf5 6l f2 zj0p*iyz7*sbibm.owing 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 4;hssi ;pz bl6right represents a simple electric circuit composed of 5 identical light bulbsliss4pz; bh6; 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 fo 0:qc33b y0:mizkll dollowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have e 3yoz iql 0:bkcl03:mdqual 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 batterygi) :ds c, 8vedtkryq*bl5tyw1kh-9 4. 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 of1dykytt*,:48dgikc e9 r5) l hwbs q-v 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 througtjj an+c3 qk1b7,hxi7 h the identified resistor in 5 ajj nbhx cqik,17+t73seconds 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 th bky ff87(so fe4f6g-ze same resistance, which would dissipate to fsf4gf6ey 8kf(z-7b he 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 accompqph+jnu) y cgf+g6 8 ol 9fkkmv7,w3y/s6tu3canying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the 7sgv9y+p 6cjwltk,umcno ) /yf3q8f6k u3h+gpower 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 l2n)zi6mk /qf4sh sb 7ty27oz connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has z z2k2nbhmso/67l4f ys tq7 )ia 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 res k5,-/qon f3v o2q6gs e5golgjistors R1, R2 andR3 are connected in parallel to a battery. Suppose Rg- se65 qokjgo 5fq ,l3o/n2gv1 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 isy(o h/ id(hl0xz5sd,r the maximum vashr0l/ 5od,y(( d hixzlue of the 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 dee kak1+5+ gxeeyj+bma,obk/ *8no9 ja signed to operate at 120 vo,m8e1 e/b*+jnxkb jke 9o 5o+ aa+gayklts?

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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 diss :rfw c/t+z*+kq7 l zkf2gkagw6u 2df2ipating 36 watts of po zf+c2 kd gf r/ qtuaw72l6zkwg:2f*+kwer?

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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 v gjn4+-ol h7ax5s wka.1qohx5olt, 600 watt.” In normal use, the current in it ishl5-a.xjxqhonk45 wo+1a 7s g

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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 retf 4 n- j9*g0kn 5xymxj1v-wsxsistances could NOT be produced by a circuit containin*5 xs vt9xwy1nmj40j -xnkg-fg 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 thdya58k3, ewiga t; )dp7pu7uvree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all th)dy7pu 3; u dv5,p7aaw 8ikgteree 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 be connectek7+qh5uwtor s wbh8 ycrm0,++j, h,ced together in different configurations. If all three resistors are used in a circuit, how many different vrw+hsje,rc q8,kby5h+co+,htu 7 mw 0alues 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 iu5jlehwh+ a0 3s connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipaw3+ he0a jlh5uted 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, are connected ixrcj-8j m h656t6m pbun parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is mb x8-t hm65jj6crp6 ucorrect?

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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 resistagblrss( v)i or4bn 3;)nce of 12Ω when operating at 120 volts. What is the min4ls)bi brnsrv(o;g 3) imum amount 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 resisx f)db 6, mm*5pg3phcu6cj ,wntor that is dissipating 36 watdwub jgp cx5f*6,h)cn6,3mmpts 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 amperes of currefgcr:f1gj 8 kdx26x t;nt when connected to 120 volts. If txf6 8;1:g ck2dxfr gtjhe price of electricity 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 muok59e+y j w5inch would it cost to keep a 100W lightbulb lit continuously for 1o 5k+9nw5 jyei 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 a power of 24x2kk4h8r aa a9lg 6i lamn+-7poj-0ka.0 W associated with the bulb. Which one of the fol-4 2ak+ a8j6in9xa7apkg a0 lml-orhklowing 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 n-oay4gj8d0e)5 9sns)xm/1 pnn0vld pga.v s500 watts in a 120 V circuit. If all computers are plugged .a) o1ps -8nsny9pdan05gvve gl x)sn40dm j/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 battery is connected to four resisto(u9e xf gp a7:skp 5(4);lttxtq.bqk crs to form a simple circuit as shown to the rig(xlk(upttsaqx 9qf t7pgb.:5; e kc 4)ht.
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/g5az yvs -pvh j0;(zf1(mlfk a simple circuit pf-ykv5v(; z alf ( h0s1jz/mgas 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 aa p sp.)5sj1z2nr k7ufmmeter, a switch and three resistors are connected as shown. With the switch op1ps ukz )ns5j .72arpfen 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 ammeter, a switch and three resilidf21fki:o 3stors are connected as shown. With the switch open as shown in the diagram the ammeter reai312 offd:i klds 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 cyl;1ule+a6 u3ales+ and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.u6le+3 l ya1eslua+ c;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 showqxk tzuj.,3m7eb- sp) n to the right, what is the equivalent resistance? Assume that all wires are ideal, m7b.)k3z- ut eps,qjx 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 o 45gj7uxlsp3 -u yps.tf the circuit shown to the right with resist yugjpx ul573. -4psstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resydm)ikv34q86o;u 0x.wigrlki0 y 7 ctistors connected in a combination series and parallel circuit tiw8yk r3x)yci0k6;4tiqd7u .omvl0go 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 combinacfddf7o8u js (5t z,q.3n0jjc,mt+r j tion series a j,u, nd3tt5+ rjjqmc.j0ff8c dz(o7snd 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,zys*z (dhdbdm*b2 ju-q 2 o*1a all of the bulbs are identical. Which bulb will bbja*dd*1zh osq (m2 yd*u-zb2 e 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 r cvk1e:bb9ozn p.-x h9w*qpc5esistors are connected as shown. With the switch open as shown in the diagxhbe b-wqp5*kc:.zpn v1o9c 9 ram 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 h+fxc2 5,q mjuv6c6bw connected au6bx,jq+m6 cwf2 vch5s shown. 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 idea.y36pll 7 ycnml ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 y c6p.7mn3yll amperes.
When the switch is closed, what would be the current in the circuit?


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