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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 elec/;pbv/ ao ,nrutric current exists in the metal resistor connected to pn/,/vruao; b 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?


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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 connected38slfpy u ai(. in parallel, the_________each resistor is p laisf.y(8 u3the 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 b,2 wxcm/ r.ujc) vwy2the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This hapc/2u v ww2.,y)rxcmb jpens 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 repd5gm x9rui +g+laced with LEDs. LED is the acronym for which one of the following choic+mdx +gr95gui es?

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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 crffbl5 6; 54slcv8+ k4jgjzz5 jckun/poss-sectional area A. It is to be placed into a circuit, but it first mk s gz;+lpv8 56bj4ju5/fcj nz5k4flcust 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 16rudn;c lglzc9 ; ck.II are made of the same material. Wire II has twice the diameter and twice the length ofnl ;z6;9rd1l gk.cccu 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 tmvh0lq- 2vbl/ he same 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 mvlv-2h0q/ blhave 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 vyx/zq,p g*1;71k b)mcuatwg 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 theqzatc1)mu17y g xkp * g,bwv;/ 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 Thomn(zm83dhqd k mqa605uas Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be mo(d0qd85m6 uz km ahq3ndified 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 are made of the w: hgb6ll uv).tmnp57same material. The length and radius og: vlnw 7t5huplm)b6.f 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, eac mqc)vocq: u gt3;f6z2h 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 res;)v c2fzqu om6 :tcg3qistor.” 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 ikza cu;w dp55,queo-; th g:5vn 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 vole ukozd hv 5, 5p:aqu;;twcg5-tmeter 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 three bulbs e 8nnce8 *m:vi(1lwu n1, 2, and 3 - represented as e nu1w8c m lve*:in8n(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 cirrc7o;n, 0/h kdxih; lvcuit at the right. If the current in all three resistors is equal, which of the fol ,oc vidr7nkhl; h0;x/lowing 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 composed of c 1st4ubu0m5 c77 hbbg5 identical light bulb1 c45c0gb uub7mth7b ss 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 sta tr8 +kbyriegqxxf y+,q8i +()tements is NOT true concerning the simple circuit shownq,)kxtqx++yr8g8 f ib ( yi+re 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 andd, d8 n:8;k99i)isiht8ot xia;wme gdY are connected 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 s hx8,d9m egd )k n;i;ai9itwd88ti :osame 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 cynu1t as. ih6hh4 (m)loulombs will pass through the identified resistor in 5 seconds once the circuit was closen iht 1lm.(h46h )syuad?


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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 resistd/,)c 8fp jrokors in the following simple circuit have the same resistance, which would dissipate the greatest fc/rk o)j ,p8dpower?


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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 circui-czuhnix: e- 2t diagram, the current through the 6.0 Ω resistoh:-2 ueicn-zxr 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 series26cs(m yj/kbe.0z wib to a battery. Suppose R1 carries a current of 2.0 A, R2 0ms bbkez (.w/c jyi62has 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 baj7 xmfpr,pud -,j4v32 3aewho ttery. Suppose R1 has 2V acroseuwd,j frhpvao-p423,j x 7m3s 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 wattsqh emr.sa,fgr1 m:00bbyjm r4 z7. *hn and 120 volts. What is the maximum value of the current under these conditi1m,gjrf 4y a 7msrmber* n:0zbhh..q0 ons?

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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 de r7wep 6wc42*pufzfa1signed to operate at 120 voltwfr4a2 fpw*1p67 cezus?

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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 t4dq)4 xiyw/v that is dissipating 36 watt/ dwt4q4vy)i xs 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 clovpwk)om az9 1 y;l0j;fwul)2 zthes is marked "120 volt, 600 watt.” In normal us 1)lykfjv a 9l)2omz u0wpwz;;e, 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 bye yn-76t0d/tos:cc nl a circuit containing only thr c0- ld/etn y6sc7to:nee 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 following equivaleozab: g*m;b(xcnt35 kdw t.q2 nt resistances CANNOT be produced using k:a.ttz*qg nwxm c5b(o2b3 d; 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 connectef s mh1y ov qi;es-(*470 uutd j*m7ylf)sqq*xd together in different configurations. If all three resistors are used in a circuit, how many v 1* 4qhtso*7)su(xyl-*q demu0yimq f j7;sfdifferent 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.umos8,k8mmlglf 20 :r m mvw+ P is dissipated in the circuit. How much total power is dissipated in a circuit if n identicar 8 kg8wm2.+mm0: mmofulvs ,ll 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 rz d g sox 7l.4:bcw34ocz+q2oresistance R1 and R2, are connected in parallel, the equivalent resistance of the cobqorsloc7oc 4wzd3z.g 2 :4x+mbination 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 resistance of 12Ω whe4oe -idibs bu5)ue ,9un operating at 120 volts. What is the minimum amount of eu-) b,uou bies 5i94dtime 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 that is dissipao5ugutt jpmv d0e;ga4-4qa0 0ting 36 watts of pow mt ad0 j0ta40-u4;5upgv qegoer?

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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 when conoh/:t v0u f5gtnected to 120 volts. If the price of eleco/0 :5ufvt thgtricity 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*f1; hul8( o2qlp- h 9d7aig8vu kamqt cost to keep a 100W lightbulb lit continuously for 1 year at a rathpou -1;q 8( *alvtlg7mu2fdiq h89kae 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 a power of3yzr6h /d/w7m1jy tgstqx *( m 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the li*6mh ts 3jy7g ywt/rq/z1xd(mghtbulb?

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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 f+/7gw/iyojw+ ,nml qsamily of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are pgi+ yw7 wq, +snl//omjlugged into a single circuit 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 fon2uf yy+dsn+ 5ur resistors to form a simple circuit as shown to the right.us+y+ fy5nd2n
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 connecjv.pc-s7xk wd-0:im9zuojn 1ted to four resistors to form a simple circuit as showzux-p c7j9v.m0oi -:jw1sn d kn 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, r6*9f0n4ql i+n c8qvd tlz7bc a switch and three resistors are connected as shown. With the switch open as shown in the diagramzbcftd4 nrq0* vliqlc76+8 9n 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, ltnio szhnb*w88 7.m7 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 amp wn.o n8h8m*izl77tb seres.
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 and k4w,(xwchsy zxl6pth4 /(1 hnthree resistors are connected as shown. With the switch open as shown in the diagram the ammeter relsxhhp(z ,h1w x (w/nckyt464ads 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 equival nrwtr30 k1z tsnc861sent resistance? Assume that all wires are ideal, the battery has no interntzc0rt 6w8ns1s1r3 knal 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 resistance of the circuit shown to the n3 pwe7phct. , right with resistanc.3ephcwpt ,7 nes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 co tu f 0nywt.9ve-.voj3mbinati t oe3n 9v0-yfwt.v.juon series and 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 connectedrs h5jllrn+2 ; in a combination series and parallel circuit to a vnslj +r5 r2lh;oltage 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 bulbsa vp08gt(9)tprr s 5bh are identical. Which bulb p)hbs 9pa8g rvr50tt (will 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 con)7it2x vx1u)mac.xqr,a u)kf nected as shown. With the switch open as shown in the diagcx).ku7u)tri1vq )2, xaf x maram 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 resistorseumrb7e09f8b 0f4p5 v9 kjhnj are connected as shown. With the switch open as shown in the npju09 0fe9r5bb 87mefhk 4v jdiagram 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 threegs. 0yti49l p1.2 ijv+ gxiihr resistors are connected as lprjgi9i2 . yvs xigh+410t i.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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