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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 metal3/kfas--isl v resistor connected to the battery. Which one of the k-silvf3-as / 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 connected in parallel, the__*zk4 xi(3gojm/efvt o+ ,fkp4_______each resistfo f +p44xto ,kie3m gz*/(vjkor 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 wirr) 7a bu;01dtsggcd3 se of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightb1crg bdgs;s3 da)70t uulb 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 b z6k0jj)+p* .9u7cv qdpodluk eing replaced with LEDs. LED is the acronym for which one of pukq.0dj 79zu l)6o*j vkcd+p 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 graphi5o cnudozo:;.mckx; 6te 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 so that the new length is 1/2 L. What is the ratio of the new resistivity to the old resistivido;z :5u o.xko;cncm6 ty 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 sam v p(zz/d5yrhgy9 bjr+5s9x*ne material. Wire II has twice the diameter bj99 gdrp zynh55/ vy*z+(xsrand 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 the diametemnxz ls5wf10z(-yr y5 r and half the lengtzys1 lwnf x(5 yr0m5-zh of 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 rft e(.2lkp s(iadius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this materikps2l((tef i .al 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. He decizv. xt /,pq2efdes to modify the filament. How should the filament of a lightbulb be modified in order to make thef t.2vq, zxpe/ 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 .lepsgv h v) ply;zqkj;h:q i6-6,rz 8resistors are made of the same material. The length and radpy),erjh k; :vqg66hz.viqpl;-s z l8ius 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 resistance R, are connected to a baovc jh i)2ixk)p-:peq9h.c9t- lxil08 f-joe ttery 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 fourth9-8 -hc oip)l i9fl2.etx 0q i)jpvcx- hk:jeo 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 inter/ol+wqbez uyx *1l6xv6) gnw:nal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.l 6 wl6q* 1g+ozbxn:v/wyx)eu00 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 1bm 0 3cv,msqoh/fuqap2mh29a/;d u- l, 2, and 3 v9m-,ubphla/ mq choau23m2f/q;s d0 - represented as resistors 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. Ip dda)21-mk jcf the current in all three resjd2 )ckpd- a1mistors 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 c2s hli)k9fyoh4*y zd: ircuit composed of 5 identical lighdsoh4h)i2yy:9f zk l* t bulbs and 2 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 concerniaar 4:oy.( -n9u7hsz0 yr cnwnng the simple circuit shown where resistors R1, R2 and R3 are have equ0rs. n :w7zhc(a9 oynra- yu4nal 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 eni56oobiw7/ -qmc+y X andY are connected in series to a battery. Bulb X is brighter than bulb Y. ow- 5i+6o cybq7/ei nm 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 gt5e (a6igw : 8dkfdx13 iy1wr will pass through the identified resistor in 5 seconds once the circuit was closed? 31 g y6kxad:ire tdf(1 i5gww8


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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 foll4x*;c-vet2 d/ w1qbgaptc) bw owing simple circuit have the same resistance, which would dissipate the greatest power?x-b;p2cgce /vtdwa)qw b 1t4 *


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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 through the 6.0 Ω re.*bx mkgm-vn3 sistorg3x*.knb-mm v is 1.0 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, R2,6zvtq u 4hu.hh6k:l:p and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.04p 6 zuhv:kluh.ht6:q Ω, 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 andR3,6kc9icdw v npo d32t,k-+mzr are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Whatk c+,cm,dpziw -39dn6tokvr2 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 o 2v+ 3 c)4nkv-(ggq wkvro+puvolts. What is the maximum value of the cu-rv ( 4+pgv+)o3wk kv qc2ugonrrent 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 operate ta89fd(an wz .at 120 vo. t8 wzna(af9dlts?

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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 flowsg0z )w u0-napd9p qbbn4u.q- y through a 4 ohm resistor that is dissipating 36 watb du-y n-p9aq)pnq4b 0w0u.gzts 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 iron used to pre9-mqz*uck4 cl- 8m uww,hu h)gss clothes is marked "120 volt, 600 watt.” In normal use, the currencuw um 4wlz) m-*9hkc, 8ghuq-t 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 6f2zk) my/w rk y9td-ia circuit containing only three identical 6Ω resis6i / fzyw2 mkkr-)tdy9tors?

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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 followibcsdij d 3 ns;g-pw;7;ng equivalent resistances CANNOT b7giw3;jn s;c p- dsd;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 val 09h.s-bzo7lez 1tbiyues can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistanb yehs7tzl0 i9.b1 -zoce 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 ba qb6 cf;-4vp,+,4idcfvbsd /xxiro -qttery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n ided, xvfd-b ,;ci46+rqv/cqs foxpb-4 i ntical 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 resd g1jjww1g10c *,hq ahs4slk6istance R1 and R2, are connected in parallel, the equivalent resg 14 hswj*,a1lsq6jhg1k wd0c istance 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 isdgo fbs*t cpv*.6p 16k designed such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of ticf1. vdbg tp o6*p*sk6me 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 flow) pbpge4u/vq,4j*qo :gk,p q xs through a 4 ohm resistor that is dissipating 36 watts of power?v4*,k,u):peg q/qgb x ppj4oq

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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*q fr/dm,a9 (jyg xl7h 120 volts. Ij*yaf 7 hgldq/(xm9,r f the price 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 itamoqos3ko )qr+t)o t.n ,at g.(g i*)p cost to keep a 100W lightbulb lit continuously for 1 year atgo * )+t.igno )3(qrot mpq.sto),aka 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 resultszq(+dzgp1d.h i,5t p0x +zpkq in a power of 24.0 W associated with the bulb. Whizik+zpp+ p(ghx 0 dq51.ztqd ,ch 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 own-v.8ymb sh* lfzr9 5qjs a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a sing*8 -5yslrf v.zjqh9mble 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 resis/urd//6sv 8wc1wh lv er/vt2ptors to form a simple circuit as shown to/e/ 68/2pvt/rwhv lrv swu1dc 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 battea uwe0iu ic6h ;4u:-rvry is connected to four resistors to form a simple circuit as shown tor e 4iacui6:u-hw0u; v 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 ;+o ey a4x0/thp5suulswitch and three resistors are connected as shown. With u/5oyl ah +sxue0tp4;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 and three resistors 8: bvtwk af0e*are connected as shown. With the switch open as shownb :ev8af tw0k* 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 resistors are con8xq d9i tz*ns6nected as shown. With the switch open as shown in the diagram the ammeter reads t*8zd xi 6qn9s2.0 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 equivalent resist vm sg7 a*kd3*un3a*kxance? Assumn3sma*dg7u **ka3xk v e that all wires 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 qm +u+:6gkj vp k 0za.4s5atbv the right with res04 +56va:q sg vampubj.+ ztkkistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in a combina:5 g7 r*qpwtt( 7gvmgsnu1v. ition series and parallel circuit to a voltag.m*gtg (g rvti:77swu5 vpn 1qe 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 identicalxhg.vr8i2 6yk h:dal+ resistors connected in a combination series and parahhi8g y6lv+dx kr:. a2llel 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 169ft nlagn l*of the bulbs are identical. Which bulb will9 *nnl6fa1lg t 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 lc yopkf ysv o6fb,w87v) -n:;ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads f op:;nv76scloy,w)yvkf b8-2.0 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 an171iy 7/kyz, pcr hhskd three resistors are connected as shown. With the switc7c1ks1 rkyh, yz/i hp7h 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 three resistors are connp cfw+csq/,t*k6l qw+ected as shown. With the switch open as shown in the diagram the ammeterk ql+,wsfc6w p/*+ qtc reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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