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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 resiysw3sq 2bm prhw5k9x 49g7vy(stor connected to the battery. Which one of the following c23 k9hb7ps4yq r g( xyswv95mwhoices 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 paraltvuzq 81a7w2l lel, the_________each resistor is the samual7q18 v2twze.

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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 lighcq7ps/qf/.f gxw x5-etbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. Thisqfgeq75 pcw/xf/ . sx- 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 replamw0fdoks h4sxi4ki k0- gz,0yf (r82a ced with LEDs. LED is the acronym foro khdi i0sy0gxfwr- ,k84z(2 k sa0mf4 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 has length L and crk fwwp gh)yugn a (-yna-wl(..; n:c8moss-sectional area A. It is to be placed into a circuit, but it firswn- n;-.klgfa 8.(nuhywaymgp) ( :wct 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 thzzxwnzx o-l1,51u /n ne same material. Wire II has twice the diam-,lnw1nz 5 xxoz1/nuz eter and twice the 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 the same material but has twice te. 5aoc85 n0gmonwb8yhe diameter and half the length of wire X. If wire X has a resistance of R tg8 bm wco085o5.yn naehen 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. This n3y vs1(pppk8c5e pn 8piece of material is then drawn so that it is a cylinder with new length 28 np5yvn(p8s 3p1kp ecL. 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 Thomas Edison wants to make a brighmll1e9h+tq(0h) v necg+ahf, tp3 cehs9 r.4fter light bulb. He decides to modify the filament. How should the filament of (f.rhl+,t43h9htp hncveg19 )acme+fe s q 0l 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. The lengtxfw8wmuj8 ; o7q-jem* h and radius m 8 x7wuq;fw-*8 joemjof 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 battery in t21mn/5s :r+abldaq1d owf,7 2gtyu m uhe 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 resq:m1rwa/l st 12duyb+5g d ,f u2anm7oistance 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 diagram has int a,7)jl5n 8i niw:bkruernal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohi) 7ku lna5nrw ji:,8bm. 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 thrur5c30 gdaq6/x/cf rwee bulbs 1, 2, and 3 - represented as re cuf/w0grd/cqx3ra5 6sistors 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 current inx3n8vmkp1+y ap0 eii c(tg ,/t all three resistors is equal, which of pnv( iek1 ygt a+, mx8/pt3ci0the 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 composed0pai09l e t;w6qoy ,hs of 5 identical light bulbs and 2 flashlight cells. Which bulb (or;lth0 6ys ipeo0,w9qa 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 simmuqze 3o f9u *.zx0c7rple circurzf9e 3. 0cu7zxuomq* it 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 avdbe 6* 14pmhjndY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuv*ep 6bm d1hj4it 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 through8c5 7 m,emlfgz the identified resistor in 5 secon fe57m 8lzc,gmds 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 circui+b,jf 0or4.ahudzt /wk slj r4;un*9ft have the same resistance, whiufwb/ jjnku 4d zas,;lo4r*h rt f90.+ch 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 curza qb6(t zw*- uw-ww.axy i,.arent through the 6.0 Ω resistor is 1.0 A.qzw -w6bzy a*,u( a.it ww-a.x 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, and R3 are connected in series to a batterykz8x;11di0l j7zwd8iy 7 y* 5hqvjoiq. Suppose R1 carries a curz85w*qdh 8 vk0ix71d jzqijy l71iy; orent 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 resistorsg:t*9 jaatu19 zp/fr v R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the cur9ju az tvg*fr1t/a:9p rent 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 1l *pm,sh+ cwi1az+2 t0s9d6gmyb l7eq200 watts and 120 volts. What is the maximum value of the current under these conditions+igt 7m+1 9 0*6lbwdlmszsqp2heyc ,a?

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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 designed5jvh42tm h (ok,.ada q0 kc5p yzt65)utzu3mm to operate at 120 volts?th)5a3ju(z0 mpk45ucay. ,tmz2q5dm6k v tho

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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 dissipatin3/i2nz13dcvzebt 0 bug 36 watts 1 en 33buv0 dzcitz/2bof 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 clo6de/:j y**cqs:/4de3wjmubyek j.5ee p2 vlothes is marked "120 volt, 600 watt.” In nw3 26e*k* jev pqbs :e5dj/l/cujyde:oem4.y ormal use, the 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 resistani zscd 0:aexvoavr686:- m4wk ces could NOT be produced by a circuit containing only three identical 6Ω ressw 6c6:-:vmkz 4xa a 0eir8dvoistors?

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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 of3o sq7y/+t y nhhdj(z. the following equivalent resistances CANNOT be produced using all three res3d j7zqt.ohyys/n+(h 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 connected togethe13z*kiuyen :i r in different configurations. If all three resistors are used in a circuit, how many different values of total resistanc13 iy*nkeiuz: e 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 power P is dis i5le 3is9rm a7t.fyst1gups7:hxr7 5sipated in the ie:.1fp7xissg3r5r y95tt 7h as7umlcircuit. 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 R1 and R2, are co.(xdv4z /ifp5p ooma+nnected in parallel, the equivapd op zi4.f /5oa(mvx+lent resistance of the combination is 5Ω . 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 designed such that it has a resistance of 1e. 4pw yy92nprvp +9ca2Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water f9 yycv.r4a+ppn ep w92rom $15^{\circ}C$ 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 dissipati3m f-b-f)jtka(f.gt n ;zd(y fng 36 watts o;f 3ft ().- d ygbjnza-mffkt(f 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 dra70mx fj:x cl/ows 13 amperes of current when connected to 120 volts. If the price of electricity i :/o0xcljmxf7 s $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 keepjy9 b(m/ zbl8g/jhfvri(es*0 a 100W lightbulb lit continuously for 1 year at a rathjzf /bs g08 e r*(/jvl9iym(be 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 a30yk(h *ltaw 9p)nffz4) xir n power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of t i0lthk fp zanyx(f 3)49*rwn)he 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 owwha fo00/e o.iyunvd 6+ p*(ftns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected byadno0p /i* fe6tfyo( vh.wu+0 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 resistors to form a simple cl y3 .4 lw)pstmsto/fe7 vfu47ircuit as shown to thpf4 ewfylmtov77)slt 3 s4/ .ue 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 resistor5d z4uo)ri97yj rm jj2s to form a simple circuit as show 95jr2z74yoirujd j)mn 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 resistors are connh;*b8rk wv8u vected as shown. With the switch open as shown in the d;kr*vhwb 8uv 8iagram 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 iic -cno.xkp6iqrn0 /:j+z qj*v n/o:zdeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.j/:iozn n-k. 0ri:c zv+/6xno*pjcqq 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 idealj1 52sauins :s ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes:insa s5sj21u .
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 showng+o,lcytks x*n6f;5 u to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all f6oux ,tc*;s5y+nk lg 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 wi 4 g nfptrp0oo/2+fi2xth resist+/pofxgt2prn2fo0 i 4ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in5i1wy 3ikkhq * a combination series and parallel circuit to a voltage sourceki*i 1hwykq 35.
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 res5- stq,7y nrsst3h5lu8jbdx)istors connected in a combination series and parallel circuit to a voljqts5s, ld3xn)-7 8hsu5ty rbtage 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 diagr3lv(j5 woy5 h1qxywr, rl(s+.: lhwf dam, all of the bulbs are identical. Which bulb will be the brightr((wrhq sd: f +.3hjl,5 wvlylx5oyw1est?


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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 swit x(kng4;c. na3,d ipivv ,lk.sch and three resistors are connected as shown. With the switch open as shown in the diagram thpil4,;3gk.dansk(nix v.v c,e 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 batt cqo(b gx p5q665wglx;ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 6lqpc gwbg5o x q;56x(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 batterbhav l+f:)4pmj d56zd y, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ahj b5:p4+dl6ma vd zf)mperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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