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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 yl/ u/zzd l03yin 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 3d/lyzyz 0 ul/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 conne d)gjr:ap0 7bhcted in parallel, the_________each resistord j7): hgapbr0 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 th *w+vg bfw*ptg1;c. imin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much coolewi. g+ p;tbwc*m1f g*vr. 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 L.u5 i1x3hdpm,(+kkl7q0 d s yyw9 yddjEDs. LED is the acronym for which one of t ,wmkd h 7qs(0didlu.1j 5ky+dy py93xhe 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 cross-sectional ana j(tox,(mq; rea 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 ratio of the new resistivitjn ,mq(xo(at;y 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 IIi)rlf6/uc2yq am9 /jk are made of the same material. Wire II has twice the diameter and twice the length of I. If I hasq j9rk2/au yl/ )6fmic 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 of6i 06en7ju 2hxfv4nxq the same material but has twice the diameter and half the length of wnenq0 7i jh4uv2x6 6fxire 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 lekxv2zw wqw 9 dvh5b(/o h7j0s8ngth L and radius r. This piece of material is then drawn so thvo972vd bh5 8jkws qzww(h0x/ at 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 Thomas Edison wants to make a brighter light bulb. zz1 hnpu;q.u ms.g )l5ojw +6kz(of*fHe decides to modify the filament. How should the filament of a lightbulb be modifu5jzqf ohn )1.pws+.lf6m*(zzg ;oukied 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 aa4-cm.7kk b .sxb7 bssame material. The length and radius of each r.7babsb4ca . k-xm7skesistor 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,mbp5 v/w*)vp.chzj; ,c6yowk tp:sg , are connected to a battery in the following way: “Two resistors are connected in series. 6:zmsw, tpv5.y,g*w c k;)/bcv ph jopThis 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 accompanying circuit diagram has ,xtf4z959v 1yb/a saux*jt zc internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Thb,1*aux/xa59cvjfst z4yt9 ze 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, a2 nsuvgfpe431rnk: 9, vzuv8vnd 3 - represented as resistors in 2nsvv1 uvrfe zv49:g k ,p83nuthe 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 hea;2g2n a9za the current in all three resistors is equal, which of the following statements must be teagz h2 na29;arue?


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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 composex 6r.pd o5ih)6-wtpha8x mp9j d of 5 identical light bulbs and 2 flashlight cells. Which bulb (or -d )6rw pmi.ptha5h86x jopx9 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 cg,m j)pb95:n;/lrauob5 w e7i fv) qothe simple circuit shown where resistors R1, R2 abq vg 5:eu owb;fa, j)l5rnmc )9pi/7ond 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 c..s 9g msf)wduonnected in series to a battery. Bulb X is brighter than bulb Y.9 swm.udgfs ). 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 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 idenv4igo d +d r6 8qsll,m((zo1iktified resistor in 5 seconds d+vs,i(imol1 rldk 6 z4g oq(8 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 simple9heghx1ichh 1; ebd7 k637giv circuit have the same resistance, which would dhb iih7x7vkde 96h g 1gc31e;hissipate 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 curre)3 /yxz/m 4j mesv1*qigk)eo-oo6e ncnt through the 6.0 Ω resistor is 1.0 A. What is the power supzoeom mk/*yxc e3))jeovni /sq6- 41 gply 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 resistol39la9)frrdx k *t xl0rs R1, R2, and R3 are connected in series to a battery. Suppose R1 carries a currenxkr)9ldl9 3aft 0xr*lt 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 R1, R2 andR3 are connected in pafn/dp1z3y: jf+3u; *ybiw0lv ps4obtrallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and Rpd;pviy1yl*sb0 :bfn +3wtzo4fu/ j3 3 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.(s(,rs (r9n;ljg sos l What is the maximum value of the current under (rrlgo9s,n(sjl s s( ;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 opek 7 653icku4des(yqzito v7q)rate at 120 voltsk4kqv u36sq )7(ceo d7iytzi5?

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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 resistorz)rvq (cr b9l ma+b av751nfp2 that is dissipating 36 watts of pow1n 5 abv l+pfmav2q)zr( b79crer?

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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-qs0 6:euke uj, 600 watt.” In no 6s0qj:-ukeu ermal 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 resistan+y+ -q9xj9pdnors- wqces could NOT be produced by a circuit containing only three identical +wdr j -q9-xosy9+qp n6Ω 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 equd 00sizx/nny1 ivalent resistances CANNOT be produced using all three rz sn/y0nx0d 1iesistors?

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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 conne(h 89p9)i1c cztqnqb9ybmcl8cted together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can 89 i98(pqnmcbqlzyt 9hc)cb1be 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 connecte.y+jj+ jjv /utd to a battery, a total power P is dissipated in the jj/++uytj j.vcircuit. 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 connected in u nb .050/mbfckn1x kaparallel, the equivalent resistance of the combination iaf0b1c.0ubnkxmn k /5 s 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 12Ω when oped-l1z:r7 tf3aw1 ;lln0t i grbrating at 120 volts. What is the minimum amount zlnlaid -t17gwr: f0 31;rtbl 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 t2.lora f v4zwz5itod*6b-o0 g hrough a 4 ohm resistor that is dissipating 36 wa 46.vl*a zfoi 52-tdgzr0o obwtts 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 current when connectjezes3e/ / 62ccfcb k/ed to 120 volts. If the pr6f // c/bejeseczc2 k3ice 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 a 100W lightbulb 0dg3-u7gp -. mfqs3u:6 ,ancopsn mkglit continuously for 1 year at a raogm 0cagf6dp,- :nqgn 3s.m3 p ku7-sute 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 2j 86 (d pq2bpe (nkqw3a8ylh,i4.0 W associated with the bulb. Which one ,3j dpe(ka 8lqpi 8bwq6yh2n (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 cw uk1)z su;hsao2gqfx46z m. ;hh4fw3omputer rated at 500 watts in a 120 V circuit. If all computersgf;4za6) k;h4u1 xu2w 3mzqw hh.osfs 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 battery is connected to four resistors to form a simpov mybv( 8ipmcyxj-3/n9z b5 7le circuit as shown toymbb oc3 ym/p(59x-vnv j 87iz 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 2c8:; rmxi2-grh zhvr connected to four resistors to form a simple circuit as shown to the righxrcrzh8 :rh2vm i;g2-t.
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, awo +hkobcht 19pu5/) vn ideal ammeter, a switch and three resistors are connected as shownto uwh5khbp/+1c v)o9 . 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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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 l qo:q*:a3miea )-8wpqvw.lzand three resistors are connected as shown. Witv:z:qqo -q*wl8e pai)a.lw 3mh 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 three re;+go z lsn s:-v63io .ejm0k cos/nl*-bzdb8csistors are connected as shown. With the switch open as je cklbz*-so-d;o0g.nli+ sb8scoz/:mv3n 6 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 tsbvwkfaieybe;*/: v fr+r. - ;he right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and al;rbie ;:bwr/*s- v+. eav ykffl 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 goe/p3,):no(btt5vu4l py r t of the circuit shown to the right with resistanceseo(y pb :),5o4lttr u/3vntpg $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connecfe 4bz(fio+;nr/s9+/ kfke iwted in a combination series and parasfwnkefi(;/ rk +o+ biefz4/ 9llel 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 connectedn f eriew3etsr+.).bql) f( r8 in a combination series andst3 )e.wb lin. ( ree)rf8rqf+ 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 bulbs aq:0rz-k 0z5 h(tza gwire identical. Which bulb will be the qz:-ka0 zzigw5 0th(r 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 p3rrvrh4ooo,ti.4/ g resistors are connected as shown. Wo,i 3opgvth r.4/4 rorith 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 ammeter, a switch andez9qb53t/.f reoy: 4yhah8vgm */fjq three resistors are connected as shown. With the switch open as show/54/ roeq z q.efy v:*y9gmb 3hafj8htn 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 amme.jmt2 s*f3d anter, a switch and three resistors are connected as shown. With the switch ope jft* 2a3snm.dn 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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    总分:50分 及格:30分 时间:不限时
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