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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 exi /nzv b0)bba ;tt64yy)el;vmgsts in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the elt6;mab gt4y0vz/ e) b l)y;vnbectric 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 pap9o-w36mf y * rd4kxsarallel, the_________each resistor is the sfowkx4-a6 sm93d* rypame.

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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 th-;q w/g*jiim 6.gc oqiin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connectg.c i/joqq*;gi6m i w-ed 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 lqsy, ag,ewag4mrf o7s05u2j5 2u 7uuwith LEDs. LED is the acronym for whichf2m07u w jg4ru sqa55al7sy,u2uoe, g 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 lengtuio6: br41zn th 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 ne4rzni6o1utb : w 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 same material. Wire II has *bbulz85rd 2 htwice the diamet8* d rb5zbhul2er 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 znj g)khy4o7(the diameter and half the length okozhj4yn(7 )g f wire X. If wire X has a resistance 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. This piece of materiallze(w, 0oexmwp b18.n is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this mwxwlbez.1ope( 0 8m n,aterial 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 brighter ligh ,we96*dwusee 8*aavut bulb. He decides to modify the filament. How should the filament of a lightbulb be *ev6swu, u8a wed9*ea 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 ma/wnvlz )4*shnfek 64 nde of the same material. The length and 4e4 wvnnh6n/fz) lk s*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 resistancebg8ib 3prh es.o;kl9l4u 2 9g gzsj iu.2pm,z4 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 connected in series to a fourth resistor.” What is the equivalent resistance of this arrang4k2zbmo . 3prh l,i8zeuis99ujbglggp; .4 2sement 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 diagra2* ut ld3dpgmtx*0cc;m has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading;gd*cl c2p t*uxt3m0d 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 compojrw;hd*v)o/(h jk w,uund circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistouj/j w)w*,; o hvhr(dkrs 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 rightnj+fj6m pdiyef p7b+ d*6r3 m4. If the current in all three resistors is equal, which of the following s 66p4j+jd +mdnbyrfpe37 *m fitatements 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 zj250 jy a/a5 cw(kd-qfanuv 6composed of 5 identical light bulbs and 2 flashlivc20 /fkj- ( 556a aaznywdujqght 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 djg:b el+046lq bjug- true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistanc:ul jq4 d06b+bgg ej-les?


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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 b7 szl-:i/e wdmpa(uc,attery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connecslwmpe ( a-,7u/ i:zcdted 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 through the identified resistor in (m(g l lowxl7(5 seconds once the circui( l(lgowm7x( lt 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 re,9v tfdfc(cog7c e29 zsistors in the following simple circuit have the same resistance, which would dissipate the grezfge, o 9cd2c(cvt9f7atest 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 accompanyi :c:uyqo4q 7ming circuit diagram, the current through the 6.0 Ω resistor is 1yu:c qm4:7 oqi.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, and R3 are connected in series t9nv d7l(m++sca pu wl.z-tw :ro 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. Ww+r p.(uvmd 7-sln zalt 9wc:+hat 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 resipbr:0byx./ s*n5qq+k fsx k0pstors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissy*0+ qnqx br0.p:kf5kx bpss/ipates 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. Wha ,( lt1/ifoqoc)h cz+sz vt2:tt is the maximum value of the cu(/zi: )soz1o hqtv2ltc fc, t+rrent 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 resistancerj f/lktn *6*hki25 re of a 60 watt lightbulb designed to operate at 120 v6trk * *in5k fhl/2jerolts?

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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).b1 q guk.lkk dissipating 36 watts 1ukb .gkklq).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 i;0 qd3a mijadl8br:)2yrt qk(ron used to press clothes is marked "120 volt, 600 watt.” In normal use, the qki8lm ydt0b)(a;3a2: j qrrdcurrent 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 bzophv*c- m;i0 e produced by a circuit containing only three identical 6Ω o* z;c-vi phm0 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 resistors. Which of the following equi* +jn8j fsoe3r:f xyd-y13o qqvalent resistances CAd jyso*q f381-yj3o q:xf+rne NNOT 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 resistors of different values can be connectem h;fyh0(n2gqd together in different configurations. If all three resistors are used in a circuit, how;g qh(0ynhm2f 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 resisto48ynyjk d+xbu :3)jlbr is connected to a battery, a total power P is dissipated in the circuitn jul8k3+xbd:4b y )jy. 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 coni 8c- m,9egnglnected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements aboutl c9gg-,enim 8 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 12Ω when ope0ky epkn7 6nt:1tn ziu e+j2b1;sj7m mbd0)pk rating at 120 volts. What is the minimum amount of time that it would take tbn0y0 6u k 1e7p7jsjdp:nk1ekzi) t mt;bm+n2o 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 current1as,i8o jds- .fedytck; g6k* flows through a 4 ohm resistor that is dissipating 36 watts of pocd;to *k-ei ksfd8j. yas,g 16wer?

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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 drawsbkbv f10), zix7qs 70+mznxng 13 amperes of current when connected to 120 volts. If the price of electricitygvs )zmbq f z+xk77n,0bx10ni 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 ke:qz,x w hg7x9gep a 100W lightbulb lit continuously for 1 year at a 79xxw, gzhg:q 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 power67pkd 1kw ilwd l /5ud.7lw9xm of 24.0 W associated with the d7w9mxu/15dkp wi7.w6 kd lllbulb. 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 six owns a computer rated a0q xptm:yj7b 7t 500 watts in a 120 V circuit. If all computers are plugjxq0tpb7y: 7mged 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 resistors to forg 1.scgwhpdvw4j 0lv.8:hh)v m a simple circuit as show0vh. h lpv4wgv1w8hgdj c)s: .n 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 resistors toigny i0na 20w, form a simple circuit as shown to the right.i0wanni2g 0,y
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 resistv82r0rh e *ga 82jcwkgors are connected as shown. With the switch open as shown in28gre2 8rwk jav0g* ch 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 sw ayjphk7b n 4t7z:+tz0itch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter retn+04 7bpzjhyz7t:a k ads 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 battevah;btjq4uv98wv7 r8 ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch op8 h9r qa7vb8; vtvwj4uen 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 shown to the right, what is the equivalej02 axuoo5m zflrn9:(nt resistance? Assume that all wirexo2u: 9janf r0 (mz5ols are ideal, 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 th1)/+xuuv g wybd-1x hy9h*xake right with resistanc*x/h+ byavuu1kxhxd) 9w gy 1-es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identica 0)5 ffvjpdgq z3.i*v4; sjraol resistors connected in a combination serie)jrz*3aid5 o0qg fsv. vp4j;fs 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 connecteoh32 t. hvrc ybzy*0m;5/eayzd in a combination series and parall;tza/m. z *bh0yhor3 2y yevc5el 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 bulbs are identical. 8w9e))ddm )-lmuwru wWhich bulb willu9m8 w)ddu)rlw -ew)m be 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 are r-kzjgb2n1p3connected as shown. With tbzr 2 1j-pgn3khe 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 batteryd oe.0av kzx)9, an ideal ammeter, a switch and three resistors are connect9o.e0adk)vx zed as 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 ideal ammeter, a switch and thre 3haqxqnm1/ ml: :l/hqe resistors are connected as shown. With theh3q1:xh amnmql/q :l / 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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