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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 resistucqd4zkd32gok,p 4*s. :kc d zor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direct,2k:cz4*dukdqdkc z4 .3gpo sion 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 p5-p uot0tlkf0ti.eg 2arallel, the_________each resistor is the slk.g- t5 puifeo0tt02 ame.

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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 thi zkgor9i*npg3* ,ibxm9(rt : fn filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remaini3n goi*9 r (gb*m:f9tzk,xpr 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 lightjwb;xzf ,x4h) k uj c:is:0ih:s are being replaced with LEDs. LED is the acronym for whicx:h) jw f;u 4:xziik0js :b,chh 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 crogv,sye sf)pa7x /7d e)yqx)* zss-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 ratio of the new resistivity to the old resistivity of the cylindrical resistoas)y7*x7e eq/x d)s yf)p,gzvr?

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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. vqn j98ah qf3+Wire II has twice the diameter and twic3v9jh na+ f8qqe 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 samv8 *3w:5 7niwqcdj9eafos yh,f y70 zde 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 a rey3fn0,a:hi* y75 7zv c8o fwsweqd9jdsistance 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 rfyd)oj +5 5ge ydh,,qaesistor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new le+)q y5dy o ha,5d,ejgfngth 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 ma8f2 h 6ibvz,:fpfxu +b,yhmf) ke a brighter light bulb. He decides to modify the filament. How should the filament of a li ,hfy hbv)mup:62x8i,f+zfb fghtbulb 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 are made of the same material. The length andtkuth w*r pfb08:i45jh 2yu7a radius of each ti b02u*yj frwh48 h7kupt:a 5resistor 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 battery inf* b* 9+u:myszifrohs *oyb: 6 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 resisty6r9y b +fiofbom:shu :*zs**or.” 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 rewax0 .pb;kp, msistance 10.0 kW and the ammeter has internal resistance 25.0 ohmkx;m ,p. awp0b. 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 unn(oqu env30-tg(o, circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagroo q-ueg3un(0vn(tn, am
- 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 circuit3i,yjh./gzn-ubd 1p b at the right. If the current in all td.z /ni3by1bu gh,j-phree resistors 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 electric circq ,j 2h5(9uic ge0crh7cj s0quuit composed of 5 identical light bulbs and 2 flash0 c(0u,2q c9uq r cehhgisj75jlight 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 statements6+oa r:i+0- jzbcl xrww5sog7xsw z8) is NOT true concerning the simple circuit shown whergj: + oacz+8wlzwx obrsi)7 0s56w -xre 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 andY are connected i aa 3l+yi(tar k7;r0non 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 (rlr0t +kain;y o3a a7to 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 through the identified resistor 1u2r nug 0 /e-nepz4uz in 5 seconds once the circui1uz/-ru2gnp e zun04 et 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 fol26pwx ,yq5sh hcq)w n6lowing simple circuit have the same resistance, which would dissipate t hnwwq)xy66pq 2,hs 5che 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 c 6g /pin6ae(xaircuit diagram, the current through the 6.0 Ω resistor is 1.0 n6 pae(a6igx /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, Rh er7mkf5;um;2, and R3 are connected in series to a battery. Suppose R1 carries a current offm ;ke;75uhrm 2.0 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 different resistors R1, R2 hx)8 tk-*(gb ixep jr+.0fb7gfv vn 03 gaicr,andR3 are connected in parallel to a battery. Suppose R1 has 2V.,kf0rx t*)3 jxc(8 rgg+ i -ibb0fvpg7vahen 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 imk - pythn-ans9b 4v283zymr/ s rated 1200 watts and 120 volts. What is the maximum value of the currynan svtkmb8z92m- pyh3 /4r-ent 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 2gj7axo wk 3d+ct k.45xuqyc+ operate at 120 volts?kywkcx u7dcq4 gjo+x t3a +.25

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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 curre;dl (a2upx*q8urba o -nt flows through a 4 ohm resistor that is dissipating 36 wabulu* (r82 a -a;pdoxqtts 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 wa2n/ x j5eigcz h18) d4-iuii lkhecz:.tt.” In normal use, the cuk1 l).-8n/ d2xh uig:ez5z4 icjche iirrent 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 yhh0+rgcs .0y7bzgafu 0+h* u circuit containing only three identical 6Ω resistors? fh ur0hg 07zh+usay*g c0+by.

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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 equivale r,dc1hh4f 7j f3r0iaunt resistances CANNOafur, 4hhj7ri0dcf 13T 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 of different values can bc.ynz-w0-.u p0my8i* 5gxwn /ajzuw ee connected together in different configurations. If all three resistors are used in a circuit, how many different values wnx8wa0c.jw zgyi.upmz*5u -yen/-0 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 bakcb7:ug3qr 3g ttery, 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? As3 :g3rb7cqk gusume 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 R1 and R2, arvhiy 8bbub -pto..lb;o 3-m :ae connected in parallel, the equivalent resistance of the combination is 5Ω :bbv8oya3t.b-mpu-i.b o;l h . 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 12Ωrkj7 ;0/jx1lwc 1r y u:v6*mbff2efsk when operating at 120 volts. What is the minimum amount ofk*6e v;jr7ykf1 fuwc m j102l :rxfbs/ 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 rmwqrwp0bwk z.yj1 oew+lynx;560 gt 2zlr*69 esistor that is dissipating 36 watts of lb1e.;z6zqyy x0wwowpn j 6rg09 2k5+*l wrtmpower?

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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 heatnx .+jze:x5 i3c:qaii er draws 13 amperes of current when connected to 120 volts. If.nq53e:+ijiczia : xx 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 mu4jt2uyh7eg d/wii3 l5l4 re,vch would it cost to keep a 100W lightbulb lit continuously for 1 ydei5 i w7/ygehu4,l32r4vl jtear 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 throozhz.:hquj4 h zi u,j:nv) s56ugh a lightbulb results in a power of 24.0 W asso5u:n6szo, v hh:4 u.hj )izzjqciated with the bulb. Which one of the 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 computer rated at 500 watts in a p6b32yk9sefy-,oif d 120 V circuit. If all computers are plugged intk2 93db6 fyf i-poyse,o 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 four resistors to form a simuur(, +vvn5in ple circuit as showriun5vvun (+, n to 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 battery01h.)i*b j zcwmv r4qp is connected to four resistors to form a simple circuit as showjb10i)z* qrp4vc w. hmn 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 th0 crju43zvk(yree resistors are connected as shown. With the switch opjv3(u4 cry0k zen 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 three,z gonj s7tt3* resistors are connect*sj,n z3t7g oted as shown. 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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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,:8(y5,yps*sx( xqts /qqqfnj a switch and three resistors are connected as shown. With thj:qy8 xfpx *n(s q,q(5y sqt/se 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 equivales ,;s0 z:a)4t3/esgvguqv)j 0hjz1icc y0rc jnt resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resisv 1)y4u0j ig ,3q):h s0 c/ccetgjjzzrav0ss;tors 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 thsnve8dzl(0ck3x r6* ke right with resistance68 slr(3vekdc znk*0xs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identicam9mv) xpkc 4;cl resistors connected in a combination series and pac4c;kp )xm9 mvrallel 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 hf.m1cjbd-zy 1cp n-l(l0 e(c resistors connected in a combination syl1( fb- 1eh (mldc0zcn-. pjceries 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, co jlih40 l;t4 fa;m 5tj)z4jnall of the bulbs are identical. Which bulb will be the brct 0i;t4j5lnaz lo m;4f) 4jhjightest?


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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 amma*gh ,sho b0n/dif6q2 7 *f.gjlnf6wmeter, a switch and three resistors are connected/n26*.n,aq gi6hofbd7gljh sfw0*m f as shown. 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 batte 1hc(ys1mb cks p23an- 7be26ce:txtary, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram2cxs y1bce:mcnapk st 3eb(1 a-2t6h7 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 threez2k -+hmmlx g874zu +.ngr xjo resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesozmh.z+ mg+jk4r 2-xu7gnl8 x.
When the switch is closed, what would be the current in the circuit?


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