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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 w5p+/bwt( t eob hv,;umetal resistor connected to the battery. Which 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?te u+,pv/ ht(;o wbwb5


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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 areco39 sql+9 pkp uqdqh, ;ks*0e connected in parallel, the_________each resistor is the,klqqep+ cd9o;9 qu*sps0k 3h 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 lightbulb7 ,fku fsh6xzldkcydw6s6 2 ,( causes the filament to,,k lxz2(us6f6 cwhdd76k sfy become 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 with LEDs. LED ogp5zti1h570r p. wnsl3.5,g rvahzn is the a57gnn.5ppzh.gio5 r, r thl3z 1s0wvacronym 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 5vr 3fob;j5iicross-sectional area A. It is to be placed ifr355io b;v ijnto 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 wire II are made hk; 9pv6s/iv/ sd/t qaof the same material. Wire II has twice the diameter and twicehvtiks;sp qvd6// a/9 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 z()3zh2qe 0 nyg hdnn6the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Yq6z2hd3(gyz0e n )hnn 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. Th iw9qy4sqoujmd9 (r3n3m: dz ;is piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becausen3uyw:mqzismd 49ord j( 9;3q 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 decbk:1ub. q.tt;ecfby/ ides to mtb.b. ct/eb f:1; uyqkodify the filament. How should the filament of 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 resi,6fw 2*guj9* mp5imrz+ dju bistors are made of the same material. The length and radius of ea2*r* fu jpgmi6mduwz+,9i5jb ch 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 47hk ;cjhw com/k61tq connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is 4h tcjho 17/ qwmkk6;cconnected 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: d3gcvug 59gnbn44ym in the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearl5 by4 m:gn9cvn3gug4d y:


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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 three bulbs 1,;(v/sr-r el+s.q ozjipxb. *o 2, and 3 - representedzvr +oo*e bpix-s.;r jql. /s( 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 in9m a,xv)x;s6+ isd upa all three resistors is equal, w +9) s6xx;,vaumpdi sahich 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 e *9xci sgls573vqq h:composed of 5 identical light bulbs and 2 flashlight cells. Which qqcs3v*x57 9hg le:isbulb (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 f )g0a cz (+mfmbjk+w+the simple circuit shown where resistors R1, R2 and ma z(0f+ b g+cwk)f+jmR3 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 hf m)9mo:ik(tseries 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 represents what is observed?() ifommt:kh 9


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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 w6 si b43mp2 )zqi3ur6hsu(hl+r 3bp z pass through the identified resistor in 5 seconsuh+3 mb 4p wr rbz6si(32uli )p6qhz3ds once 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 hao*so1(4uuo duaz dz90n .c ht,ve the same res* cduo4uuo9,0o( .zn sht1dza istance, which would 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 6.0 Ω 6.q-2q8dj66d vrgi m rjcl.nt;z ,mkw resistor is 1.0 A. What is thic6glr;vknj,mtqm -rjdq..628 w6z de 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 batter2c *u 9vzekmbr t.zw2/fstk6 6y. 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 across9mt crekkzsu.2f6/bz* v62 tw 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 t k khul3fz:3,lszal3-war+7 ( -fsvx1jnjbm /o a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Wha3f/ --: l1jfmkl733xss blnj,+z hz(r vukawat 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,0v y;kc vx+8-b7ja r nhu.bpr 1200 watts and 120 volts. What is the maximum value of the current undrvb; 70b k .cjnp8+h,-xavru yer 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 120oxten;0 zb c9;w4ul +q voltoc;lxu b+tnqw ;z09e4s?

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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 resist* b 9enn(oy2qy00bdp,qgciv uc j0 );zor that is dissipating 36 wattqb0d n,iv* qc)o0j( 0;9pnycgyze ub2 s 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.”/xorg 4snv)3koo)b 9t4pc: 4t s c0cdr In normal use, the current in it is spk)4ot 4nrrcctb4:os v 9c0)o/g3dx

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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 circt il6,j4 qps6n4c)v +seb+odluit containing only three identical 6Ω rve,t6icn6ds4boql j+4l )+ ps esistors?

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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 fol4 q)0k0ej bk/s:u bwcklowing equivalent resistances CANN0qbbk 0ckewu4):js k/OT be produced 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 oyx2wu32r/jgaz -m8uggf)r) m f different values can be connected together in different configu2m m)r/jg 2xz-u)fgwurgya 83rations. 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 remrjdgx1:j*s/ sistor 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 1jj*x/s mdrg:? 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 resistancen 879ap(kiouw R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5wa(i knupo978 Ω . 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 resistance on4b 4z cc+/n bo 4uw03vqxu-xfd ,ckq4w+ahc*f 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.qcc 4zbdu hbw/x 3cau+fv+ nc-n4owq,k x44 *045 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 res3zz8hr u-vd rmql -u(s-tx5 +kistor that is dissipating 36 watts of powe zru- 8mdv-5u 3(-rzq lh+ksxtr?

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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 ama/abm ca*1z: )a.s tsiperes of current when connected to 120 volts. si acab/a*1).za s:mt If 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 18oh0ua y+5q sc00W lightbulb lit continuously foy 8osa5hu0q c+r 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.rs8u8qg dwr+ a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistancer .ds8 +gq8uwr 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 eqf klm9 /jca34ab. 42xpln/ lof 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 numl fl qam//a244 39pjle.b nxkcber 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 batt vb7dp,s:dy *s8uza 2bery is connected to four resistors to form a simple circuit as shown to the righ 7:pv b*a28dsy,duz bst.
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 coo 2 x jp/:jij:y57wnf3alze3 tj0 ifl*nnected to four resistors to form a simple circuit as shown tl02fioajt5 jwj::3xp fl7 ze3jy*i/n o 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 a5jh+ 9xd* mnlthree resistors are connected as shown. With the switch open as shown in the diagram 59 a j+mln*hxdthe 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,t0 odetd s/agx9 7bq0c(vu97kv- t4rs an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readt u9s0-trv b q4d a9t7e/dgxvock0s(7s 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 idec0h) a dsne-1f2kvs;) tw xp+pal ammeter, a switch and three resistors are connectex1)nh2v 0psw -ad)+ ;kptc fesd 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 the equivalent ryh:7u fuiy;cjgka //.esistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resisja/c; yfk7iuy. u:gh/tance 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 thq5cbf37 up ezr*z*ud(e circuit shown to the right with resi357z*fpzrbceqd(* uu 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 resistors co9 mekall8h/g6t6 nyvrae* , 6onnected in a combination series hm9kr/,velol8 6ty ega6* n a6and parallel circuit 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 five identical resistors connected in a combinate (p kqx3*fs;wion series and parallel circuwpx;seq(f *3k it 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 oo:h 8+ataztw:/w9r j of the bulbs are identical. Which bulb wt :+oaaz/t w8 wj9:orhill be 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 ideal ammeter, a switch and three resistors are cong8i;vpr4 afwj ao;0jg: x/v1 anected as shown. With the switch open as shown in the diagram ;0 gf4i;jp 1 8vrx va:o/jgaawthe 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 mehlw 1 75dn:land three resistors are connected as shown. We75w1 dm lhln:ith 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 switcc: wd3uy;9mfuh and three resistors are connected as shown. With tm:wd9 uf;cu3yhe 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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