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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 sr i1 ksidyke, 8sw379vhown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow th8 e sivyisk,d1w79 r3krough 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______rmh -:c3*7o26wrbu hyrb7lnu ___each resisto7h r :*7mbol cyuhnr6b23w-r ur 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 thro6if3y8+dflx* hi tkg9 ugh the thin filament wire of a lightbulb causes the filament to become white hot, while th yxik*3d ti8lhg+96 ffe 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 )-mwtzj k m je,0-.ikwlights are being replaced with LEDs. LED is the acronym for which one of the following choicek-etzwm- i,w)kjj . 0ms?

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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-sb4mbaw +6o26t uqk*( p*bpphhectional area A. It is to be placed into a circuit, but it first must b+u * w46bp2* pqo6bmpb(tha hke 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 wire II are made of the same material. Wire II has -gtv (ho t-j,a :m(o7qcibt+k twice the diameter and twice the length of I. If I has resistance R, II has resistancm cot(7itg: (jt+ h,bvk qa--oe

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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 madenpk 1wf9r:j4u.z4vza* cw/ xh of the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wf4hu .z*w j9 rn w1v4c:xapkz/ire 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 r 7 xlh*eq.lfx.adius r. This piece of material is then drawn so that l.e*hflxx.7q 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 dj o5(* kpgu hza;yd:3jecides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more lipd:zkh*;5(a j 3jouy gght 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 q)ou lf9,x n:vresistors are made of the same material. The length and radius ofxvf)9, lo: qnu 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 battebe,ul41q 45vte xlo8a ry in the following way: “Two rqe,e54 v4at 18l bluxoesistors 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 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 internal resistancfgp22ukb ;nm 4e 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most kn p2g umb;f42nearly:


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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 showqb7xx+ub 37msii 36own to the right. The three bulbs 1, 2, and 3 - repmswoqb33xii6+b7 7x uresented 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 j+wf/ wa gw-fzpi-tef.kz( 6 b+b0ui7at the right. If the current in all three resistors is equal, which of th/ ibg-70++zpk wi w ajft(fw-bu6zef.e 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 circu9)ub r (yxvgi,0/cadvit composed of 5 identical lightbryuvd/xv 0(, ga)c9i 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 concern)3*+ gim(e7cen vhsw qwpl/w8ing the simple circuit shown where resistors R1, R/8ph wg3(se*) ew+7l cmnvqiw 2 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 batte7y9fz8(yl2;r4: g1teuscfodm 5ux vs m5(eopry. Bulb X is brighter than bulb Y. Assume all circuit elemer8 54xd e 2ucl ot:vm 9s(e1f5s(pyfuz7 ;omgynts 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 will pass twcie1, pznow4g u5c4 xzi4+8ehrough the identified resistor in 5 seconds once the circuit was closed?ezo wu5cipw14 z,e8c g4xin4+


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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 sikhl0,6*, gro i z1e8pdj/kjwsmple circuit have the same resistance, which would dissipate the grejgekhj6r ,od l/ wiz108k*,spatest 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 diap5+- 1ln :bxj4l*js)ccw c kxcgram, the current through the 6.0 Ω resilnp-cwks:xj l5) c+cbjx4 c*1stor 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, and R3 are connected in series x clf y1o-(yrex-t)88z o8sjjto a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates rlyz)8y 1oxfej- -co stx( j886.0 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 nc7: -fvbmi1,qb6n uhin parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 Wbcn ,6h niqmv-f1:b7u. 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 theicwhg 8q+;l7e4h s-qs maximum value of the cui;7-8ehgh qcs +s w4lqrrent 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 resistarr3 y :ek4gg7a, egpg+nce of a 60 watt lightbulb designed to operate at 120 v3gp+e7, rr 4gk yaegg: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 ohm resistor that is disseab1dpc*2 g9h ipating 36 watts of pow2h9bedc*1ap ger?

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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 prex j)ls*1w7sx kss clothes is marked "120 volt, 600 watt.” In normal use, the cur)k* sslj7 x1wxrent 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 folloi5i cm:.3 kye8hal5mfwing resistances could NOT be produced by a circuit containing only three identical 6Ω resistorfi 5ek3m5h8i.acy l:m s?

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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 thro riwge7-(+x ree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced usierx(-+rw 7i gong 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 values can be cof ztckc3 nr6i/4-8,so9s r e.vqwobv3nnected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance cvbi3es onot-9rc/rk8 q34, zsfv. c6wan 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 resiyh sks2sc*ssy)3 2y+ dstor is connected to a battery, a total power 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 same battery? Assume the internal resistance 3c2 hsys2 +k* yysssd)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, a4fpvu 1ol,hm( 3zh/5pzjqu +wre connected in parallel, the equivalent resistance of the combination is 5Ω . Which j+lmu3 1wo/ ,hhp(45vf zqz puof 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 hkm nv+k766jqdesigned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that +6h7kjnkqmv6 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 curre;tm 3 7t-vbol 2gowc9wnt flows through a 4 ohm resistor that is dissipating 36 watts of power? mboolt vt wg9-27wc;3

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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 herlsu,k +8az; yater draws 13 amperes of current when connected to 120 volts. If the price o ls uzk+y,8ra;f 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 lgu tr( (6d nu7ce9m5xlightbulb lit continuously for 1 year at adulme9 6gcn( 5x tu(7r 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 4.0urx tkv -/-uc7*dln (d0 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following cht*ucvnu-7ddl / xr-k (oices 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 o goflg+a3o1;zf a family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit azogog +f31;l 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 resiscg3 p i46fcf79h l,oaitors to form a simple circuit as shown to the right.o7pc,9 g fiah4c i36lf
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 batteh6th-m *s5tb) qjov.v;lu*t pry is connected to four resistors to form a simple circuit as show*hb *;t-mt.tvv uo) p5qh6jsln 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 r skuy0+mwhu.8r*se8 /ztc s7resistors are connected as shown. With the switch open as shown in the diagram the amme8/kzu. sr7ht0c*+ srseyu8wm ter 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 a* ;b 7ja9kha5zpu(4kk4uvh msnd three resistors are connected as shown. With the switch open ash 5a4zmkh(bpu k;*vaskj u497 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 ammj 8wyoi+ nlb0k1nvq2/r jdb:1 5s .ntueter, a switch and three resistors are connected akubstnoy .j58n 0w/jql 1:i2nv +b1r ds 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 equivalermz7z*w fco2: t h)tdew 3xw (5d5tk)jnz9qm-nt resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resish)mz*5d -nz7qt x zf rtjm2wdwwc:(o9)ke5t3tance 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 az bwn )tl18/pto the right with resistapn/ )tlwb8 z1ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a6z9oz0k9 tv/um0l5 ciguc, fi combination series and parallel circuit to a volta09t kfz0c ,g/6v c9 uilu5mozige 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 combin3f f-dyx s6 k)6jl0ig *-shvrdation series and parallel circuit to a voltag)j6 y- k sdg vx-*li0hf6rdfs3e 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 bulbs are *w zxust;pc (9identical. Which bulb will be t ( u;zwx9sptc*he 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 ammeter, a fdbwejnzm(+v0/.i0 a switch and three resistors are connected as shown. With thee./f b0ma (+zidv 0jwn 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 are+-* 1lldjb dba connected as shown. With the switch open as shown in the diagra+*bl ldbd1 -jam 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 con/5l 9fl+llq uynected as shown. With the switch open as shown inf/uq+5ll 9ll y 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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