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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 resistnvqh;tr/3e5o j j6(ezudpz0 9or connected to the battery. Which djon35(veezrq/ 6t pz09 uh;jone 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 5tjct * 0.rhoyconnected in parallel, the_________each resistor j y0o*.r5chtt 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 filament wire,* f)jj/ uac2kc ruzz5 of a lightbulb causes the filament to become white hot, while the larger wire5ujc /zzu f,ra)2j*kcs 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 househlc3h :hhhh4b- koh/r:a po 1 ,+dvt,odold lights are being replaced with LEDs. LED is the a4,r1d 3tlk:oh ,+/ hd hhohocpbav-:hcronym 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 graphite resistor haj mrm()p341ul7umneg rpzomc6 4 ta7/s 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 rat7mpc(16p)g l 4um n/ zjm3troeum74ar io 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 same material. Wire II hr .buhi: xri2p:tb c 6nr:p1l*as twice the diameter and twice the length of I. If I has resistance R, 2nr x:6 1i*r chbtpr:lubi:p.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 and 0c c qpt3uf,1ohalf the length of wire X. If wire X has a resistance of R then wireq,3o 0tuc1pcf 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. This piece of materorl j8 l9uhachhec;n3p(2 ,x/ ial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance ojr,(ph ;l93acxeu /2ohhn8lcf 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 Thomas Edp)s k;.p agj t kyfov1rb6p+)/ison wants to make a brighter light bulb. He decides to modify the filament. How shg+k.6;k t)j1spa /vyrpp )obfould the filament 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,tisp8f9a td- j9t -kq-)ker a same material. The length and radius of each resistor - p a,t-8akfedq-t9s9trij) kis:
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 c9y un lsd+9yp1onnected 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.” What is the equivalent resistance of this arrp 9+9dsnl1yuy angement 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 accomp(f, p x8vxqr8janying circuit diagram has internal resistancef8x(qx8rpjv , 10.0 kW and the ammeter has internal resistance 25.0 ohm. 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 bulbs 1, 2,x0 emnctyxz): f y64a. and 3 - represented as resistors in the dia4n6)a. yefz x:m0yx tcgram
- 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 electricalxn4bdszzi - 5, circuit at the right. If the current in all ths5 ,nd-bxzi z4ree 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 com- adp9ozb 41s4, gottmposed of 5 identical light bulbs and 2 flashlight cell1,-b at4opdgms 49t ozs. 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 statement):l6.n mf xx* jjtkt1 ++c 5(bzpgbtfys is NOT true concerning the simple circuit shown where resisxj +yp*)tjm zxt5 6+ :kcfb.ntb1 g(lftors 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. B*;tslay ; 2givfw/2stulb 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 t22;ylw;fi *v/gt sassame 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 91 eqog*)nmwj ,poz,n identified resistor in 5 secon,o *w jnqe9nzo1m pg),ds 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.rdhv e*;a. vs the following simple circuit have the same resistance, which would dissi.avre d*hv.;spate 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 curxei17 ea* jqna(miuz+ s09(ao rent through the 6.0 Ω resistor is 1.0 A. What is the pownj zeqe(1xmauo7a s09 (*+ii aer 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 Roi10 3ypna3hrxy:/, aqdcx 25 zf3ukz3 are connected in series to a battery. Suppose R1 carries a currecq0133:adi x a 3up,2z5fyon/h x rkzynt of 2.0 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 R1j6m ,- tf2 gsi5mo,2 z9izvxfo, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Wzfiv i2 g mx,j6s,2f9to5-zomhat 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 coi;up ;r()o+foa4ojx vl l is rated 1200 watts and 120 volts. What is the maximum value of the c + vpl a4o;orfuox();jurrent 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 to oper7ag n-m: hqwk g6 0+g0yd,ksmoate at 120 g0qoa0wmkny 7hg+:gd m6 - s,kvolts?

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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.;(scw zaj8ceg o(an8l6 pvp; through a 4 ohm resistor that is dissipating 36 watts of poweeac(gzp j.6vpw (;ls8a8; ncor?

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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 pressycotcat1y*g+1 f je:2 clothes is marked "120 volt, 600 watt.” In normal use, the +y2tf c1j1:ocey g *atcurrent 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 be produced by a ciip36tl- )h a:,s5zd s.hpyacircuit containing 6aa,h.i:pd53 hzsc st p)il y-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 q- ogg4dpsagbu)to+s 8l69l; Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three res8tlpo4+o9bgqsul-d a;6)gg s istors?

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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 connecvogig72 6vig l -kl7q-cby;+oted together in different configurations. If all three resistors are used in a circuit2ov-qc 6kg77i-l gbvy ;ol gi+, 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 tohu ep8p4r;i)py +m -+4 fuwczytal power P is dissipated in the circuit. How much total power is dissipated in a y;8m+y u rp4w-fue)z4 phpi+c 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 conn unjpp;, u3nk-ected in parallel, the equivalent resistance of the combination is 5Ωunjpk nup-;3, . 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 desibn mjx3lo ,a5f7sul-o xj*aq)c4// xjgned such that it 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 fro la)o4ab ,-x*mfo3u/sx5x7jjlqn/j cm $15^{\circ}C$ 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 dissig) vp of-m3w,qpating 36 watts of ,3 mwvgp fo-)qpower?

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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 voltk knx+m7l8/ lscmv+- ns. If the prim /xnvl+lkk7n-cm s +8ce 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 much would it cost to keep 7p tw:h/p0kz .d;)jfygoj6 bva 100W lightbulb lit continuously forjt/fwp)o: py76d ;vjg. k0bzh 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 42nv( qsk.dhq0i1q mwha;r f 1/.00 A through a lightbulb results in a power of 24.0 W associated wdkqr0fni2 w/h1h v( ;sqm1.a qith the bulb. Which one 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 h0t 93yh;wonxsix owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampo3x hhn0 t;9ywere 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 resistors to form a simple cavb 8 /ia(4yn:5hrswp /il2teircuit asiiavt:2a /5 yw/4s( p8bln her 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 battery is connected to four r3 u,tt x lliv*;+czeg)esistors to form a simple circuit as shownxtl ;t 3+el)icvug*, z 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 swi a-rsvzisi6of+j()g cu): zd0 tch and three resistors are connected as shown. With the switch open as shown in the diag- s:ij+)sva d)(6czz f0r giouram 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 swmc3,yg.y wml (itch and three resistors are connected as(m y3mc,ylgw. 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery4ok:f,bavga b g/ t) l7: t5tfi:rtv1v, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads g ,o:l/a a7t:t)vgktb4r b:1ff5v itv2.0 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 t a bciyv 00svi 0qjcz8ys;+7x2o the right, what is the equivalent resistance? Assume that all wires are ide sxcs2b av000vy;i8iz7 cy+ qjal, 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 v-ey5j9ysm +k with resim + 95jeysvy-kstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 shbr5 flo5*f rd *z2si 1 fymxb*8,7hrksows five identical resistors connected in a combination serbs5f yo ,81sk x 5 fmbr7id*r2hrf**lzies 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 conwm3c/7 ln y u*u:fal4lnected in a combination seri ul7cfl :*mul4w3ayn/es 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,7nsze+pi58nd;t v-l 1gkpz x bulbs are identical. Which bulb will +,5dpkl7t;e1xp zv8g ns- nzibe 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 -q)-x h 1twuq12lwejacizqq 3q+0j b:are connecte: c lwqq-eqwq1z0u-hx2)jta+1qbij3 d as shown. 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 ammeterwjn)3npmghz, oy.b w-535jnw, a switch and three resistors are connected as shown. With the switch open as sho w5nob)w -j33pzy m.5jn,gnh wwn 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 thzmve y5zb9k 82p-0/hxs 3j gebree resistors are connected as shown. With the switch open as shown in the diagrp32 ejzg s/ xe5yhb-zvk9mb80am the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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