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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;;z iiw;ruh1t:ydm-dbq-ld 7 electric current exists 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;yqrb -u1dwlmz7i:;; d ihtd- 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 para -6pxwcg v2x:5shq/ax v0ook(llel, the_________each resistor is the sa5cvpo2k0:oxv /6(a hs-g x qxwme.

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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 lightbulbkw0 n;0punww3+zuqj*biifhe9- *a0 l3pkxa 6 causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler.;nj+00aibk pf*w0nu9xa *i w- e pwk6zh ql33u 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 bein;zzb6p 7rar; ne w1as:g replaced with LEDs. LED is the acronym for which one of the following ch71pazbezsa6;r: ;wnroices?

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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 hb tiju7ptqn.2b 1p73 graphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half sqi2ju17 . tp7bp tbnh3o 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 the same materia j9tpve-v -b9wl. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has rvwjvb9ep9 -t -esistance

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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 twieuv pfn(0l/1cy/:k ugce the diameter and half the length of winp/f lkv0uy/1ue(cg :re 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 piec0r oj6 nubh m0m2b -mzdes)30ce of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this o30-nrm0 b)mjz 2ch6 u0esmdbmaterial 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 Thomd+ozj5.5y/m dfj 3 xnyzy(dmyh78g/ gas Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modifdg7.53/h+joxnm( fdy jydg z ymy z85/ied 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 resi,p )lrjxjd9 4istors are made of the same material. The length and rdrpi)l,j j4x9 adius 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 resista9t .wj5j kwhdr8 ze+;,*ldgxe nce 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 arrangement *, +tkw 5;ej.zwhld8j9 gexdrof 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 accompap1)i 7q ye3deonying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most n31q)pyedei o7 early:


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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. Thebda v08(u./b p4mpnc ,b k-iqj three bulbs 1, 2, and 3 - represented as resistors/vid b,.b c8j-mukq4bn0pa( p 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 the9e(cogfh uw m/xq5.x- right. If the current in all three resistors is equal, which of the following statements must be trueou wh e-.5xf/x (cq9gm?


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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 repre75ckts-opks)c 4 l2 ufsents a simple electric circuit composed of 5 identical light bulbs and 2-pt5s 4lks)k7 u ccfo2 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 following statements is NOT true concerning th845 t9e:o,q jfxxy djoe simple circuit shown where resistorqf9j,ot 8xojd y:x 54es 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 arex8 b2gsl+y ya, :fizmp4:ss1f connected in series to a battery. 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 of the fo: b sf8 agpx ilf21ysy,:szm+4llowing 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 rex ekepfvze7/xz; vd525 (v,g psistor in 5 , 5kevg vz5zex/epx( 7pf;2vdseconds 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 wu vp6wrttf-ts7+1 b*j 0j(be atb0v3the same t*e(ab7 wpj+btsjr0 vvwtb-tu30 f16 resistance, which 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 current thr0u3e pkc+ qhnvq f6isbxb.4 7:a)9 ontough the 6.0 Ω resistor is 1.0 A. What is the power supp f.7h 9nbo4nsvu3t)cpba+ie q6 q 0k:xly 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 inqs75ab9xezr*b l*f e2 series to 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. What is the voltage across79bsla2fz*er 5 qeb* x 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 differe gf ;(npr.l4 l h.m1gnf.,gtwznt resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipgfrwp;.1.,nf hzgnm( 4.ltl gates 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 is the 1 5k7ksr)h;dx6 upqk vnhw;k 2maximum value of the current under these condh x;ku vkpk6ws25 q) 7;rhkd1nitions?

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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 lightk v8)b0qbzwg5hai7 9w bulb designed to operate at 120 iqk5 8vwbhab9)zw7 0gvolts?

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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+d4u:nkx mep;-zj b (u ohm resistor that is dissipating 36 watts of po-;b:+e(kmj n uuxpzd4 wer?

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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 s7 nxz x:lv 3sm)mtfec2vg4/(2p;; fv.ud pla"120 volt, 600 watt.” In normal use, the current i:34 us flx /)7pglmcvvxvam2e;.pd (tnsfz ; 2n 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 s7 lfoykpv;--following resistances could NOT be produced by a circuit containing only three identicalsky-v;f7l po- 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 Ω resistors. Which of the fol9,g3dp c:g seylowing equivalent resistances CANNOT be produced using all thres93 ,pd :yggece 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 connected togez* j:of.a4y1whv 6se5dw7 nyc ther in different configurations. If all three resistors are used in a circuit, how many different values of total resistwz1ao6e y* :5j4 wn h7vcdys.fance 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, ajy s2,, qdbm*p total power P is dissipated in the circuit. How much total power is dissipatedj*y, bpm2qds, 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, havinl;si qg o7i9d2g resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correct?i72 lig;qo d9s

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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 s0ogsj+28awpq m2*eo that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it wgpsa o *e82so0+mqw2jould 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 7zt2ezvib)ala 0n4o y49:q aja0 jx)jthrough a 4 ohm resistor that is dissipating 36 watts 2a:yavzln aj)7a4jo e 04 bz)9qjx0tiof 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 connected ,t5h t.+jhk*xt : tsjhvjfw.3bbb(t) to 120 volts. If the price tkh,ht) 5vjhwf. s :+b*j(xjb3tbtt. 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 tov(j+0il ordq , keep a 100W lightbulb lit continuously for 1 year dq,lvr joi+( 0at 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 inu pbwy.(n/q,e5e3 c( nodj8sl,pw ix3 a power of 24.0 W associated with the bulb. Which one 8pcbe o3 d yp. se(nl,q5uwniw,(/xj3of 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 ratb 3kz *y7m -eu-zdlz8+-gw na*jyq0c ped at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum number of the computersj- a zl 8yk*ybw-n+p-zgc7 qz *eu3d0m 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 cpaa::)vmt j;-yj tzv 2ircuit as shown to the mvtjtyz;pv)j:2 - aa: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 to form aljn:a,/d:kbk simple circuit as skd:ajk/ n: ,lbhown 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 ideahs9 vvchqgp0p mq.sfs 7q egh2)yp**0 p h+**nl ammeter, a switch and three resistors are connected as shown. With the switch open as sfhp2*es*9h)q*vp0 .*p 0p qgg hhmvscy7 +qns hown 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 res3gvhkf h;f98 kistors are connected as shown. With the switch open as shown in th 89k v3fh;kfhge 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 switche)d5km h c6qh( and three resistors are connected as shown. With the switch open as shown in the diagram th(cq6m)dk 5 hehe 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 rights lsh7 ,)7lxykn.y7je, what is the equivalent resistance? Assume that all wires are 7yelxhyj) l7s. 7,knsideal, 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 equivalentu,edi/ gk9 w.u resistance of the circuit shown to the right with resis,gwu uk9i d/.etances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectedmkdvt vr,,4 /f in a combination series and parallel circuit to a voltagerd/ v4v,k,ft m 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 identjv.e( l, voc-m8fq/0 g qj6qibical resistors connected in a combination series an . jgc/fe0qv6 vqlji-,8b(omqd 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 x:x rxv8wna8be97.ndthe bulbs are identical. Which bulb will be the brig w:bad8 7nxvx9e.nxr8 htest?


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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 e *dv;9qu-p(2hh-sj*qgd6 zhgjna .oconnected as shown. With the switch open as sh --;h(p*gn6uzd*d9. qjas gv qhe2hjoown 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(aha)ff. l.o b, a switch and three resistors are connected as shown. With the switch open as slafa.. b)h(ofhown 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 ammu1*j7yrq0rkb8tk .e .eqmo8jeter, a switch and three resistors are connected as qyb k j7t.*1 mq8ue rero.0jk8shown. With the 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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