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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 resisto c9f2ehr*qh8er connected to the battery. Which one of the following q92*hcef8h er 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 col*,w x ak(el31wjws6 jnnected in parallel, the_________each resistor is xl l6 *,w(j1akw3eswj 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 through the thin filament wire of fpdy4v1yo.i ,a lightbulb causes the filament to become white hot, while the larger wires connected t1y ,vod 4fyp.io 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 househj1 .ua z1;kufhold lights are being replaced with LEDs. LED is the acronym for which onka. h;zju1fu 1e 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 0 6d2cvjr-c9 vemcudn;2sw;tlength 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 ratiosje;mcvv2r d nuw0t-c2d;9c 6 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 ptx)cb 2 vwf0u+ 9okh-II has twice the diameter f b)p2x0+9o -vt kchwuand twice the length of I. 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 samehu1 x+ bhkf2v3 material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have +vhhx2k buf 31a 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 m nb4e1 ,opqflm6hz:3 has length 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 lzqn4 bhepmm ,fo 16:3of 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 lightejd qqp7z4tq 33rmm281vto +p bulb. He decides to modify the filament. How should the filament oqdmqoj7p2m+ze4ttp3r38v1 qf 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 arekgpq2qq rbo9 w i)0*a. made of the same material. The length and radius of rb09* qpq) 2qkogw.a ieach 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 resistor xlq4;n( rui+fwe- x3ss, each of resistance R, are connected to a battery 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.” What is the equivalent resistance of this arrangement of four rfnwr-x l;+4q3(suex i esistors?

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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 accompa u;/tsr1d*d zzd)3bhqnying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistan s1)*z;d tqdb/u3rhdzce 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 right. The thotglx q8 q2p3z: cah0(ree bulbs 1, 2, and 3 - represented as resistqlt0gz pqox3c2a( 8h:ors 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 aluq5m c6l-3r tu + 0ag1.ddu kr/l1kkysl three resistors is equal, which of the followi13 kyc .guu6qdsl a1rml- r+5kudk /t0ng 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 represeng)v;e5pf :ik ets a simple electric circuit composed of 5 identical light bulbs and 2 flas:gike p)ev5 ;fhlight 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 truc +ztmw0--kqk*+ty db e concerning the simple circuit shown where resistors R1, R2 and R3 are have equal mk*zw-d ky0c-+bt +qtresistances?


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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 connecter4 t.pad/hh+tf -ln 3md in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andYh td+ahl. -34tr/pm fn 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 thro);/v(lisfd pmh*fj8(8 prea eugh the identified resistor in 5 seconds once the ci8dea*8 p/)frh((v;ipfslm ejrcuit 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 re0gs3lps xl /0:i9jrbz.rv, w);mn dr k;mbeq0sistors in the following simple circuit have the same resistance, which would dissipate the greatest power?x k ,jep0slr;r dzg :/93ls)v;0rqn m0m.ib bw


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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 diagrabbl(4z jhu+4 v/gt ui5m, the current through the 6.0 Ω resistor is 1j+zuh5(4l / tuvb g4bi.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 to a battery. Sbpw:dwgu3+i x (b.k;buppose R1 carries a current of 2b(bgpkwb.ux w:d + i;3.0 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 different0zse*k.uyneikl u/f4ll,c g5; t 2pl0 resistors R1, R2 andR3 are connected in parallel to a battery. Suppo5 *z4s2l,lkik g;fn0c0.yeu u/tle lpse R1 has 2V across it, R2 = 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 120 vx e) )ns,56ieum,osyq olts. What is the maximum value of tho)5ex 6y)q ,imsn us,ee current 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 resistance of a 60 watt lightbulb designed to operate at 12 mf r8-h).dswi1ivsp,*,yvyy0 ry v,wsv.y dy*m8,ih) s if1-pvolts?

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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 dissip /ro2 bgmw5s k,(/(rdawx .ectating 36 watts of powe rrxs o.k/(/c dbta(,gww5m2er?

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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 pressobns y4 /tu;kzq9ks*in8(iy/ clothes is marked "120 volt, 600 watt.” In normal use, the cur/ 9kuib z*sys; nn(tqyo84 /kirent 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 could3(pksi,3,p1yirbnv fu + h7xj :)v/s9 hgjkhc NOT be produced by a circuit containinbuh3/7+:skiy,c(1v )x hrs 9pvjpig,knjh 3 fg 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 the folpr,s5v.fn ul5t5:jk jx9 hjw; lowing equivalent resistances CANNOT be prodrn5h9u5tsv,l j :xk5 wj;.f pjuced 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 different values can be connected tvx.vs(4sh vjlh4 - -eaogether in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be producedhv- .vaj x(4-slsvh4e ?

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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* paga-5gjzyh3iow5yf p ,j77 total power P is dissipated in the circuit. Hojg y,*hy7o7a 5fa5wg-3z jp piw much total 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 resistance Rx,y(unrczyn 8hc :x;*1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statemenz yy n,ru:;(xc*h8c nxts 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 resista)en; i mfi7n(yug9/wsnce of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take tos9i gei /;f(7)ny wmun 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 resis yed qwf*0-a)itor that is dissipating 36 watts w 0ie)q*y-fda 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 drawsm:k.*rhel q1x 13 amperes of current when connected to 120 volts. If the price of electri .rklm1:h*xq ecity 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 k cuozco9+))yevy:qn+7 - pto much would it cost to keep a 100W lightbulb lit continuously for 1 )q+ tyo: 7z)oc 9y +ovcnkuep-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 a5v2hw j wu8g.k power of 24.0 W associated with the bulb. Which one of the following choices bestg 5j uw8v2w.kh 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 owb827vq x o oh4hmr,ns;ns 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 comp 8rn7h;bqxo4 2svmho ,uters 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 fouop9) dvax iy*/g )e-bdr resistors to form a simple circuit as shown t)*-)doxb i/v eya dp9go 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 af1/5qfl zb69x -(tyh; j6vn* c kojswb simple circuit as shown to the 1b5s q/;yjv6b f och69( fj*nwx lkzt-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 idedvm0kadc thi5-,c /bj-jg b: )al ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammet5)-0k-vcd jcmgdji/h: b b,taer 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 three resistors arex q2 -wd3gijxvql7/4 ql /kqv* connected as shown. Withvdkj q74glx-2 q//vixw lqq*3 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 andd f01yqaql7 hpe881up e.i)ce three resistors are connected eie 7y8q 0d8pfe1uc. 1lpqha)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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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 the7qwz25fzm4 /cl(;di2wo xgbu equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all threw qx( /wdi5u ozb 4z2mfc2l;g7e 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 circ)qbzi( 5o6oudnl+p09 xgc9a buit shown to the right with resii9b+6 nbpgldcq ao5( xoz)90u stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 repo.:)idi+rey 9k :yzcsistors connected in a combination series and parallel circuit to a voliki9+.)ze : ocypydr:tage 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 identivpm3 c6j 4i6qgcal resistors connected in a combination seri46mqgv6 jpci 3es and parallel 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 bulbd5a yxiplm6*9 y4ai -ws are identical. Which bulb will be the brightest? yixaw*mdy6p4i l 95 -a


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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 three resistors a f81z;,od3,ulup qy smre connected as shous1m zyq,d 3 ;l,ou8pfwn. 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ams 0hmmmlsczin. /45d: meter, a switch and three resistors are connected as shoslmi:/shm5 zd 0n 4.mcwn. 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 ideal7/0)5: x d osgfghfmkv ammeter, a switch and three resistors are connected as shown. With the swi0x/m ks:h )o75fgdv fgtch 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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