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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 u9meh,wz5cfo /xfc+ld 60o/hresistor connected to the battery. Whiz uc6ohfef5o/h0l/9d+mc wx, ch one of 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 resisutw*kxfa(je. dimd ou90, 4k+ tors are connected in parallel, the_________each resistor is theek4i (daktxu d0f,um*9o+w.j 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 wire of a lightbulb causes the filakga0/p*b le.l t,p 9;snmmv5ament to becomtl;*.pgkab,p s ml/nvm9a e50e white hot, while 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 c7jr9wb1.d- n9ja qtd with LEDs. LED is the acrot1c9nj dr. adqb79w- jnym 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 graphite resistor has length L and cross-sectional area A.ae h.wt5f7n v1 It is to be placed into a circuit, ea1n.t 7w5fhvbut 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 wire II are made of the same material. Wire II has twice th31bhq23-1kkr mq2sqb yn1 frk e diameter and twice the length of I kfq1sqrybkmk3q-r 3 h122n1b. 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 has9.q om95 iwsgj twice the diameter and half the length of mgj5 .owis99 qwire 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 radius r. This piece of mata+j ,ljszbcr ap24//rerial is then drawn so/abr j2+jp/s, z4clra 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 E4xe mx+tj0vi;dison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbm40+x ;xtej viulb 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 cylindrical1fvupu u4rpkc0s g6p:;2/kg/ ;d n aig resistors are made of the same material. The length and /kgkgndu p4;2uv;a6 : fic / r1psug0pradius 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 battew 3 .d/4bihu;w6y-; sbcvxp ydry in the following way: “Two resistors are connected in series. This combination of two resix4 ydwuyd sibp 6 wv;hcb;/-3.stors 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 4gu(b bni3mb1+ dfd.linternal resistance 10.0 kW and the ammeter has internal reb n(.mli g +duf1db3b4sistance 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 circuit shown to the righy41h 4r mw n+/anbkrk0t. The three bulbs 1, 2, and 3 - representedkybrma1 w/ nkr+h404n 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 in alh0z9fzubj7p11;e -1 qb 4 pxdkwxvk-tl three resi-eb1zx7qb0; t v 1 w4hk1kf j-uxdp9zpstors 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 ele /ln5v+gpugxkdr.37l ctric circuit composed of 5 identical gx/7 uvn5g.prdlkl3+ light 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 fol4xftpabl cta lo9(es/ c7 ,91f*;dfnylowing statements is NOT true concerning the simple circuit shown where resistors cdo *a9e(9/ 7pyla,f 1 xs;4blft ntcfR1, 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 8vix3gqy0v -y in series to a battery. 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 battery, which one of the following choices best repre v-0yyix v8gq3sents 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 q,3epeno ,i v;pass through the identified resistor in 5 seconds once the circuit was e,ev,qn o; 3piclosed?


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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 ,virt7 au8do2the following simple circuit have the same resistance, which ir78vd,uato2would dissipate 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 through the 6.0cx5k1ku84l z )xe tfe( Ω resistor is 1.0 A. What is the power supply voltag k zcl8(e)xetk1x5f4u e 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, cnhh 4qlg3ln5- 1afkc57o p2d 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. What is the voltage across kh1-5pcl ng5lc o 74dh3nafq2 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 resis:+ zk*y mko:qql o4n2ctors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 42yl*nkq :z+ koocqm4:Ω, 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 coill g:w ut-/,fo+3 dydqx is rated 1200 watts and 120 volts. What is the maximum value of the current under these condiltq,/-x+y:ougd df 3 wtions?

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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 resisz5 wt x8 .)hm,;f:l ojdo-ejcotance of a 60 watt lightbulb designed to operate at 120 voltsmlwe8; 5jtxoz).ho,c:do -j f?

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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 dissipatiny.*2-bee cqsvm;x 0 wmg 36 watts 2c q*- .sb mewem0yvx;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 pre1 ryum7k-gswruuz7ohc2 l(-0ss clothes is marked "120 volt, 600 watt.” In norh7us y2czgu1lou rwrk7 m0(-- 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 could NOT be produced by a circu tx:4-f1j3z ;kv+b1;oy9 evq imqisg uit containing only three identical 6Ω resistx; ozf m3tqvikq- 9:1y1b4u vgij+e;sors?

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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 following eq 8v b cmbx;0di4ixd:y8uivalent resistances CANNOT be produced using all tc;iyddim8b4 x8x b0v: hree 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 connected tnlau.-sae+ d 5ogether in different configurations. If all three resistors ar+ls.en d -aau5e 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 total power P i utbh2m:.q c3ps dissipated in the circuit. How much total power is dissipated in a cir2 mb.upt3: qchcuit 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, haviyt(po*k03 (n j 5mwvnmng resistance R1 and R2, are connected in parallel, the equiva v*tk 5(0nmnopywj3m(lent resistance 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 has a resistanceh;jcl5qb6y +pyr28hlp nm n-7 of 12Ω when operating at 120 volts. What is the minr n7p;qn56hhlcpy bml 82 y-+jimum 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 ohm resistor thul1.7u u m;p0uk4 p+fwek 8n;yi7d2rvi caz*gat is dissipating 36 watts of 4 ;i17+dp2mu7u0 ak8*vl.n r icu;ygfkzwpeu 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 heat 92ycr pm x(sk*6tvli:er draws 13 amperes of current when connected to 120 volts. Ifmc2s ltpir69y ( x*:vk 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 it cost to keep a 100W lightbulb lit continuoo;g o zwvqq9hk+t7i*( usk qogv7wt*+( q9zih;o ly 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 current of 4.00 A through a lightbulb results in 3k,;; hmj ua0b:s zyrpa power of 24.0 W associated with the bulb. Which one of the y kbau;rp j,zh30s m;: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 owns a compuf0 1rkuu7i oz,ue -vw3ter rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protectedvzu 1fiweu7ur0, ko -3 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 connea vvm2*x;,aco cted to four resistors to form a simple circuit as shown to; xo a,*vcm2av 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 resistors to form a simple cir )vt 2alnlpop-k. ,k: eed2l:vcuit as showkt.,lnpl ov l v:p):a22 -keden 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 resistors are connpcouk:/2m zlv3 7z-sq ected as shown. With the -2kq73/um:z po sclvzswitch 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 thf0 ne,skj mh9m5p, (:hqkd9 wpree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amp(j5k wqme0,:km pnd h9sphf, 9eres.
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 an taogwqfh65bb;t4 -f04jm ba:d three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 t5fwbo:40b qb;gh am-af6t4j 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 thems;.aob7w :/xac i,-1r5 cdubxzre6czk9 b s8 right, what is the equivalent resistance? Assr-cwmzc8 ob9b5s axdx u ;:e7c bakr16/s.zi,ume 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 resistanlus q;lux ;jzbv6t-88ce of the circuit shown to the right with resistances jx6v zutu;q-l 88s l;b$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 comgu ik +o-t5k4q1fnm v5bination series and parallel cirfiq nm +v5gu45k t1o-kcuit to a voltage 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 fiv r z,(7x u5gvg.;cl,cvrlrag 7e identical resistors connected in a combination series and parallel circuit to a voltage rgvrrl a g77 zc .5v,c(x;lu,gsource.
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 circ3c +2fe orgcxf:wmygb1 m84 u1uit diagram, all of the bulbs are identical. Which bulb will be the brightestf 8y:cor43m1bm2 gg 1uf +xecw?


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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 switch and thr2wn l z7efd/: yo:ts;jee resistors are connected as shown. With the switch open as shown in the diagram the ammeter reafoe2s/ywdl 7ztn: :;jds 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 batter d4 wmtb(hnvkc.f2595hx*ouqdlw 7 ) vy, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in *4dowl2h 9m() tnfwv vdqck5h7b5 ux.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 m sen+u4e4mw iw51y:gand three resistors are connected as shown. With the sw5w:4e gi 1yeus4+nwmmitch 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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