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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 resistor co1x2hk3;1yb1xx h xrfennected to the battery. Which one of the following choices best describes the direction of elect k13be xr12h1;xxxyfh ron 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 parah r6v4qtz mo9.llel, the_________each resistor is the samrm4qvo z.t6h9e.

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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 lightbulb causes the filamrum6d3j0zx 2)s3-*;.jmrp dzzzuh ltent to become white hot, while the larger wires connected to thz*jus zxl 3 m6-hutr z3drm2zp0j.;d )e 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 lig:vvrv*rxz ))3b ou . 2chhs e:t24ivzwhts are being replaced with LEDs. LED is the acronym for whitu ::ehs rc o4z.hir)2v v2)3* wvzxbvch 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 le(nlgcw 62kd vjc,b /q1ngth 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 c6(k lndqj1,2gvb /wcresistivity 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 materia0ma(p n7 j:l;/h, *8i ekpd,y 19fqqkagrcitb l. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistyq* a;8hjfgb/kekla 9dp,p0(in,cq7 r: t 1imance

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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 hasuhk: xcrpt 2syx09+ y3*nat 9w twice the diameter and half the length of wire X. If wire X has a rexart +n2kt9 9c uhyw3p0ys*x :sistance 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 i32znncg ovm)h06,m l length L and radius r. This piece of material is then drawn so that it is a cylinder with nl v c)h m6izm2on0,3ngew 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 bulbsjqu 1,l9 y,eg jw8i)lhuh 8+sqwx 47jh6c7k b. He decides to modify the filam8 j6j uwb s chk4qwe1+g)l,il8 x9ju,qh7sh7yent. How should the filament of 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 mw.zi36 * ck;nzwqkc3d 1rl)ra aterial. The length and radius of each resistor 6kwa i dnc*wl)k c rz3.r1z3q;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, eacs z jxhhc8m2q9u7s7tj,7 :o ajh of resistance R, are connected to a battery in the following way: “Two resistors are9772qsoz mjajs: uth7x hc8 ,j 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 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 ac1 9 muezyo5g4ocompanying 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 geum4 9o1y5 zonearly:


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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. Thpmr 5t/qe,vtq +fp,y6 e three bulbs 1, 2, and 3 - represented as resistors in the diameq,6/+t,qp rp y5t vfgram
- 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 electrlc5j 5yht5g2bniy:/ rical circuit at the right. If the current in all three resistors is equal, whiljc25g /th5:yn 5ybirch 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 electr fvl07:h spzuz xt53c)ic circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (fl5:xp0s h3z7uv ct z)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 following34+i- //e*r wjgw/fb1b ms6q povsqk a statements is NOT true concerning the simple circuit shown where resistors R1, R2 amvs 63g ep1-jqw+wif4 oka /*bb/s/ qrnd 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 connected in series to a bath6;iu )dolawq 4p0p6ytery. 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 batteryp6)d ulway0h; i6 4qop, 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 d g565jk 1a8 m36wjzjqljnt; m in 5 secondzj56l 6agknt8 jwj5;1 m qmjd3s 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,i xe jqk9m;0ghv/;ba t have the same resistance, which would dissipate t x;qai0 he/v; 9kgjmb,he 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 dia v3 p9n8dtb.mugram, the current through the 6.0 Ω resistor is 1.0 A. What i.nbdu t8v pm93s 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 R+f2xe3v wop,aa:1mhu *: vyq p4 pekt.1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 hasap vp: tyevxkuwq,m4a+fp he:o.1*2 3 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 resist5bcgor )a0(x5q/ ywff 9: pdfdors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, :(wpf0rd 5b)xfc qf9a/ gd oy5R2 = 4Ω, and R3 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 12p+2xfnvhfj.-g s f*0f0 volts. What is the maximum value of the current under theshjsv-0f*pfgn .x2f+ fe 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 lightbul b:d dn2x1;x :qcfzv.l9, yap.(cq kvzb designed to operate at 120 volts? .:qxabdz 1 dcc9x vvpykzn:2 ,l(fq.;

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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 thw7ei)r 1rqc/ 4zub:wq at is dissipating 36 watts of powqwu) z7e cr4ir /qw1b:er?

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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 irhu(v;o(dt3 rzon used to press clothes is marked "120 volt, 600 watt.” In noru(;3 z(rvohdt mal 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 resistances cou y+p sf(b1*o-h-xh jmwld NOT be produced by a circuit containing only three identical 6Ω resistors?bfpo(+sjy*hmx1w- h-

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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 givenpyl-:* rliz1/h 1yp wo three 1.0 Ω resistors. Which of the following equivalent resista:liph11 zloy p*rw-/ynces CANNOT 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 difad rgl6 3ev-3cferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistar-g 3l3e6dv cance 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 cptl*tf-/ 99 w0x(yfgr ol pi :g(fh,gronnected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit i,(gf lifygrrhx9lt-pg 90:*o/p w tf(f 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 pab az.ofee(m-e zz:2i)rallel, the equivalent resistance of the combination is 5mze2ezeob.-i:( f ) azΩ . 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 suchsb +6.(o0kv mjin5qxi that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would tak5ij 0k 6o.i(qxnbmv s+e 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 through a 4 ohm resistor that is dissipating 36-9puxqtf, n c/l u1o*b watts of /uo1qxf, c-tnu l*9bppower?

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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 amperex;(,kvp ul(b as of current when connected to 120 volts. If thv (,ak;bpu(xle 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 it cost to keep a 100W lightbulb ldwqrzq 9+owijhvaqu d3 /(108 it continuously for 1 year at a +/ i9wuo qjdvwa rq0d1( 8zh3qrate 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 icpb y:sj*yb12n a power of 24.0 W associated with the bulb. Which one of the following choibp syb*yj1c:2ces 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 sm.u(k1. hacs*boz( rknas1y3ix owns a computer rated 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 computers can be operating at the smn(b.3u.rssa1 hok*a1( k czyametime?

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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 toa60ftb o0j6 lk four resistors to form a simple circuit as shown to the righ6oa06fljtk 0b t.
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 a simmel3zf-mp :cg/ /nc f0ple circuit as shown to /mn/lecc3g f:0 zfpm- 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 batterywq lkmicpdv va .(lp+22o/5d:-ew 4vn , an ideal ammeter, a switch and three resistors are connected as(n ocm qp.v-d25vwvdlw2ia4l kpe/ +: shown. 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 batterk)r3ch ws 1gzc -v)mp y,/tu6rjbwu99y, 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 awwv1sz g 6kur)9 )jmc/9rcb3-, utphy mperes.
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 resist; qwc0 i7i-p 2hs3 3wr9zseuxwors are connected as shown. With the swi3 -czr2 0sqh;iw 7we93xisupwtch 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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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 kcx(* ps l5am ky-c) acs 1tf9rtt429sequivalent resistance? Assumespr*slk y 2sf)c19ttac-4(cxt a m95k 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 s ml0q :vq*2sknhown to the right with resi 0snk: qlmq*2vstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 showv pzmz+ 6rg 2ofkkiy(w, ,k(y9s five identical resistors connected in a combination series and parallel circuit to a voltaf+k(9k (zrmk wyo,,yg6zi2vpge 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 connected in a comb44ptbla kp: i.ination series and parallel cit:p i4.l4kapb rcuit 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 th-5js q4v ;sx 5ucu sq,wdc*ig7e bulbs are identical. Which bulb will be the brig4d5cqwx ,;j *75uuqgv-csiss 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 switd9c2ii) hh. zich and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a i9h d.i2chiz)mperes.
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 batterdzc(:)+5ez j g yq6sboy, an ideal ammeter, a switch and three resistors are connected as shows) bdz (e: g6c+y5qozjn. 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 three resuuhm qh*0d ,c22nb;b4aukmdol1d+w .istors are connected as s*ddqko;w h+lb1mnu2 m0h.u ,cb4a 2ud hown. 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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    总分:50分 及格:30分 时间:不限时
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