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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 curth0f4 8kssw.px+b )nkrent exists in the metal resistor connected to the battery. Which one of the following choices best de8bkhfkp)04 s+ sn. xwtscribes 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 ai f6ikx kt- f7u6uo/9ore connected in parallel, the_________each resistor is ttu9ui67k f6 /koxf i-ohe 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 t7e*ak rd9nv *6ntej 7xozr; a5he thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This h*o77965ar tevrnzdk*nx j;eaappens 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 wvp4 yq:fwvfy) 3y:q4g4 hwg9replaced with LEDs. LED is the acroy v)wfh9gq3yy:4q v4 w pf:4gwnym for which 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 gra 1w4g/k,3 zmiwbd 2fyyphite resistor has length L and cross-sectional area A. It is to be plack wi3 yy421mdz,g/ fbwed 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 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 wireyqj( h2;y kqfplv0*l, II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance vyyllj0qp ;,k(f* q2hR, 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 diameter and half tnaqp0j *cw 9+yhe length of wire Xyaj p9n+q *0cw. 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 leo o trqm9pd+9;,y aqq,ngth L and radius 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 material because,pqq +,dor o;mat99y q 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 bri q,m j2y,cw2fy ynnf-4+r ket/ghter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbuk,weqy/nmn -y2 ft j+r,2ycf4lb 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 material. 3 ce+mu( kacpht1,ko6The length and radius out 3kaceck1+(,6h mo pf 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 batterek66+n/-a7 rzptjt c hy 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.” Whak7hc6-+ t n/6ptjeazrt 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 diagr78s,yxojq a8z8zc 4o iam has internal resistance 10.0 kW a8ajc7 ,4x zio oy8s8qznd the ammeter has internal resistance 25.0 ohm. The 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 circuv2agqe 4rogtqn(ikn -72m8m2 it shown to the right. The three bulbs 1, 2, and 3 - r47a 28en gmgm2n2rt(vqo qk-iepresented 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. If the current i5 ) oh2 ve0si dbpj)gz8/5frg hriq,y)n all three resistors is equal, w2yi 8d/rozj,)si)hhr 5qe g )g5bfp0 vhich 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 circuit comyp )xuzp/--8wqo*+nlfsz/er posed of 5 identical light bulbs r wepp-+qx-n you 8/ f/szl)*zand 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 concerning the simple cx1 bs .(mhav6ih02 trfircuit shown where resiimr ax s(.21vtf0 bhh6stors 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 are connected in series to a battery. Bulb pnvnl/ m0rd0+X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY arl0+0r/dnmn pv e 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 coulomd* c42h(lss. )kic ihmbs will pass through the identified resistor in 5 seconds once tl4(ic2i*d c.ks shh)m he 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 simple7vf7klqfgt7 vgu 9dxgvt; zzjd).50: circuit have the same resistance, which would qdj75d0kzg z) t7vfv;.9ful :g 7 tgxvdissipate 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 thrvxlc+ /ag 27cr (c8uzec :7e0g5psety ough the 6.0 Ω resistor is 1.0 A. What is the power supply lx7 gazv s70y8c(ep/ee:cccr5t2g+u 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 resistord,h6ffkosc(hgn)) .oo/2 gpks R1, R2, and R3 are connected in 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. shf2c6)on ,hkgkp).( g d/ofo 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, ,nl0d ul/)x vgR2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, u0ldgx) ,vn l/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 120 volts. What is tc4;,- eyt4h7ewzuitj he maximum value of the curren 4 4wj;tch7tzi, eeu-yt 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 resista shuds +dpn 4q :ag1:h953ryunnce of a 60 watt lightbulb designed to operate at 120 vdu1pyh 3: a4gq drshn5ns9:u+ olts?

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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 ohgn6d(b *j7zyem resistor that is dissipating 36 watts of powj*bgz 6yn(7d eer?

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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, 600 wf 9auqq(jyj4+att.” In normal use, the current in it+fuqj(ya q9j 4 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 a circuit aaj m(m+9gesd +(ph ;pconts p9gam;d he+ (+mj(apaining only three identical 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 p endp7 /q.z27rav2ssthe following equivalent resistances CANNOT be produced using all three resisto227 v a.qd se/7zsrppnrs?

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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 l0k5j97x4 csfzhchzq 8ow y.5)pr t;ndifferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of t0w;)clq7t. h9 p n5xhjyosf4kz8r5zcotal 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 resistor is connected to a battery, a total powev.z*7jv l :sx3lejyk 4r P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the s.x 7jz4l* lvy ekv3sj:ame 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, havi onxblc2g7:y5ab2 7yhng 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 corr y7gnb xhy2oc25b:a7lect?

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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 ohca)u;mnbs(t 3b ;bq wq7+:su perating at 120 volts. What is the minimum amount7nut: ;qw)b qu 3sb;c hb(ma+s 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 through a 4 ohm resistor that is disssb ac0(cb13k xipating 36 watts of pow 1b3cbacxsk(0er?

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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 tmv6 s(zb*:dp.ikwye4 o 120 volts. If the prii*64k. v(wb de:pm szyce 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 lu p z2kp,fo4msfqsb dmt(7q96- 1mb0e it continuously for 1 year a b9q2 p74sq(zm bs -e6p 1tdok0fm,muft 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 fi(l q-ik(,ol in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbul(ki,l oq (lif-b?

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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 rs3q)w4h odaf8ated at 500 watts in a 120 V circuit. If all computers are plugged iq)s h 4fdw3a8onto 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 res veap* 0.az w:mn or3n(kmax(*istors to form a simple circuit as shown te*xmra zonk n(03:mvw *p(.aao 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 resis:yju x jj(g12ltors to form a simple circuit as shown to the r(j:uj j2gx1y light.
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 resistors awy;xa zilw59wxrx.b7 8 iz *(zre connected as shown. Wiwxl9x;.iix b5wz(wz ry8 z7a*th 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*ci(uy( bk5t8jz mf8 e0jtl j, ammeter, a switch and three resistors are connected as shown.cm 8,tei* lbj8t(j0uf5 kjzy( 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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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 thr w :lvkjz7;1oy6gjhpb03h.,vhms/ssw3z . gp ee resistors are connected ,w/h 3v bz: z.ys3h.op1hmk gjj0svls7p ;6wgas shown. 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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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 equivalenntv 9) 7zd 5q8l(ammtx yfu:z3t resistance? Assume that al:(n )t87lyvqfd5zm uxma9tz3 l 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 the right with pw3.(o yeh0v,1.e mq angqs)bresistanh)0. m3qewae pb1o, sn.vyq(g ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resi,/h8jbfz3- ob3 pspkostors connected in a combination series and parallel circuit to a voltage sos 3hpb3 f8bkj-,oop/zurce.
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 fiv+bc 1x+vpny ze2:(s dq4xnl7he identical resistors connected in a combination series and parallel circuit to a voltage soy42be1xs7 c xqhnn+p:( vdl +zurce.
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, a1ciba7 81x;b yd*-6yka6 )obwo pymkm ll of the bulbs are identical. Which bulb will be the brightx1b; ik1y7yk)-da p o*o8 cbymm6bw6a est?


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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, ajgw. .v1p4h;wtm iz+n switch and three resistors are connected as shown. With t4mj.pgww+z ;hni t1. vhe 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 and three resistors aqq;6kqr o an,5re connected as shown. With the switch open as shown in the diagram thr,5;6n k aqoqqe 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 qh8g/z yovhgo/9vl7 4resistors are connected as sho hy4vo g/79hv 8lqg/zown. 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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