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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 resist2 g-ijifik9) *om cb8/clolws9zn+ 5c or connected to the battery. Which one o8knf/ +oc2i95s9bi * i-) j gmlzlcwocf the 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 hu3)g+w;+;ezb /rlcp uvx 3lmparallel, the_________each resistor isvrzp3+)cu ;hmelw/ ;xu+b l3g 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 throu /ue( .i+ x9-(4q0nzlu yfgkp,qpaeazgh the thin filament wire of a lightbulb causes the filament to become white hot, while aq4ypu-( 9zg,lk/za i(ne0.ufx+p qe the larger wires connected to the 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 lights are being replaced with LEDs. LED is th*v ho*+u6 jh9czfpm,g e acronym for which one of9fv,6ojhgch + p **umz 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 length L and cross-sectional . mhctgc(u*ei1yj + +tarea A. It is to be placed into a circuit, but it first must be cut in half so that the new lengthc g( uyciett1+j m*+.h 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:jfwh i8/x5bfat-4m e are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has rm w845-i/ f:xtbej ahfesistance

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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 abe0vs vfxn2ss1, 4 p p/:4zvgwnd half the length of wire X. If wire X has a resistance of R then wire Y would have a resis1vw0 nbzexpv4v4:2p s , /sfgstance 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 piece of material v9qu: -/lbfacis then dru-cv9l:faqb /awn so that 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. He decideskida gyt+u5q )y2or)i4 ib6vg:2e 4cw to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given voltagv2 6:ic4tq bo5y2)4wag+ii)kd e ruyge?


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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 resioa2irr7+q i ,hstors are made of the same material. The length and rad iq+o2ai ,r7rhius 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,lwb iboq c +w.s: 363mtarvb6/ are connected to a battery in the following way: “Two resistors are cbw: mq 6vs b+oci/63 wt3.abrlonnected 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 accompanying circuit diaaa zi9db3q2vgec5+z .gram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The volt3e9b ag5z2dq+ a.i vczmeter 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 rightk2q4qtm h(g7 o. The three bulbs 1, 2, and 3 - represented as resitg4oqh (2kmq 7stors 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 electo5/wc x 1 ph7h8ywn+q86lqqfm s jvh1/rical circuit at the right. If the current in all three resistors is equal, which q8hl7/xhwn m8s hvqq/f6 p1o5 1wjyc +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 represenz713q399pux v; oray/g/0hev ho fycvts a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Wyy3v/quavz hv; 7p 9c/3rog0f1eo x9hhich 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 cibkg, (w6s 64o5wn tfhcrcuit s4th wfc66os(b5wgn,k hown where resistors 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 seri/bc5j1rc6a l zes to a battery. Bulb X is brighter than bulb Y. Assume aljzb16cr l5 /acl 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 co rpjjotzq /;u+o-8o1zulombs will pass through the identified resistor in 5 seconds oncerzoq-;pj18+t /joo uz 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 the /uckd,ep h05p same resistance, which would dissipate the gre, dh p/0kup5ceatest 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 currey9yk7t jb g jm+z;o60g;rm9nont through the 6.0 Ω resistor is 1.0 A. What n rym6;gj+;b omg0jz o97k y9tis 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, and R3 are connected in serie2 6/rxogl;sdr 9mhb g+s to a battery. Suppose R1 carries a current ofgs9x; m+6rho g2bd/lr 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 parallel to a bat mh;9yg v,i:vftery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the f y9h ;igmvv:,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 ratclhj 9t/ vwk86ed 1200 watts and 120 volts. What is the maximum value of the current under these conditio w htckv9/8j6lns?

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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 operzy,v f*v /rb-bate at 120 / rb-vvz*y, bfvolts?

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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 y8n fvkbq)q: wd32k.n ohm resistor that is dissipating 36 watts3b8f)nwynv:.kqk d2q 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 press clothes is marked "120 volt, 600 watt.r94s8 p9pju th” In normal use, the current in9p89u4 t rsjhp 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 Ne6wyt :nv *v.k z b1jqoqvjq4mt2,1 tefor )+/OT be produced by a circuit contk q+.y6) mf1 vve,t1r2vj q*jwe:4n/ qttbzooaining 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 theffo-d6 c.ld n6g z9kq/ e2h6su following equivalent resistances CANNOT be produced using all three resistorsqdf6cd l oefnh/ksuz-g6 926 .?

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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 com u.nor ++5 5o+vdcfhznnected together in different configuratimf+ +u vooc5.hzn+5rd ons. If all three resistors are used in a circuit, how many different values of total 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 totalkgz 6.2skgj8kab)dl)7 hrop)gqsq *(+ zuib3 power P is dissipated in the circuit. How much tos+ kkrd gjgg3*aq hq6b8 ) l()ok)z72piz. ubstal 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 r ,p *s6 yh jo7agctr,1pil8)fresistance R1 and R2, are connected in parallel, the equivalent resis,jp cp ,f7y)hr8rto1ai l6sg *tance 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 is designed such that it ha8vbcf i1(8bfyze v6 jsuf 63o;s a resistance of 12Ω when operating at 120 volts. What is the minimum ubs8ffz; i3vc86v1 j6f eyob(amount 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 y5- 3m9x6zhygt wg ax8ohm resistor that is dissipating 36 wat6gah9y 5 xzy3-8gx twmts 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 8 6ujl /i*xdd9vv8o,dud;h qb when connected to 120 volts. If the price of8q,9o/ *dhd xudjd iulb68 vv; 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 z2v;jg4ikuc d9: r6 mfkeep a 100W lightbulb lit continuouslymuigcf;9jrvd 42 6zk: for 1 year at 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 currennu+o7v brtv (9-y+ x 0vw 4yrmqo-v,fdt of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistancvbdo9tq+- 7w4yu (vrnm0vfv+ o,-ryx e 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 ofqo 0p6-gjvl -ou)13o 4dascrd six 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 voou3dpj1o-)6c4d g-sar q0lthe 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 2cj8j 2zw i87l1ptomhconnected to four resistors to form a simple circuit as shown to thejh8z 1c 2 pwlj28tio7m 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 p56r:x n/df urform a simple circuit as sh npfxr6/r:du5 own 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 ideal ammeter, a switch and three re 5os t)/0fgtclalb4i8,l ld2gsistors are connectedgl t,l 8 oi/5dtlabsfl2)c0g4 as 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 batty :5 n;j4logtkery, 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 ampereso l kg5t;n4yj:.
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 axhey:8w2b xesi8( zta*b 0o 0mmmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram thxsbe*0x8t:0 bioza(8 m2 ewy he 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 equivalefrrau62nzie /2ok;*d(0 b h aynt resistance? Assume that all wires are ideal, the battery has no internal resistance,u6e(k*or ; nabhrd /i2yzf0 a2 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 tfaw g2e ,(,m*k) ubn)ts-adwqo the right with resist-ukq mfwgs)awa n, )(e*dt,2b ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combi +m-z;af+8song prex4nation series and parallel circuit to a voltage source. sp4amz x f;e-+or+8ng
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.vxao jd-9g 8hg dq0q+ a combination series and o 80 gqag+d-jxdq9h. vparallel 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 bulb wos,z 6gz,,62mp-vj xb(zbr 6qz3wzxs are identical. Which bulb will vz,q- xxbz6 zw(6rw sz6goj , ,b23pmzbe 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 8f e hpn/gghj3rs grcx aa.4.i5a)x2) ideal ammeter, a switch and three resistors are connected as shown. With the switch open as s.)if3 j h c.xhep8a4rar5/gg)na xgs2hown 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 amxtnm wcho u9q+3jsr/3.) dtvvmm7 ) d/meter, a switch and three resistors are connected as sdrhn3.)7msu+ q) v9tmc/ twvo jm3xd/hown. 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 s841lgcqyt *w*x-c4ub+k ,bnd9vu evg y yb y*+witch and three resistors are connectuc9xnkqgw8*+b*l gyuyyby, ct evd4 4 +*1v-b ed as 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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