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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 metaly h:t4gchcyxwcp/:+j(o)o0 u resistor connected to the battery. Which one of the ox/(wy c)cuh:yo4phgt0j:c+ 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 connected in parallel, the_________each res8j o9 +bnt/rujlgvq6 9+3i irnp0tm:qisubg8/i6+tq:v oqj i3+rtljnpmn 0 r99 tor is 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 fr,w qu*;d n cwv2wg2i0ilament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. wrn w*v2c,g;iudq20w 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 Lb20c9rw /4k q acmpk8/ gqza3yq8b+xeEDs. LED is the acronym formqpb83 b 9yaaxq /z82rec0c+kg q4/w k 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 qm k5w*hh;g1rgraphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in ha1q;kh ghw5mr* lf 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 6: tvo0:evajgw2uwp + the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R,ujgt evao : 0w+wp6:2v 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 has twice the diametedb 7:.yvc jjj7r and half the length of wire X. If wire X has a resist b7.vyjd 7jj:cance 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 dzcs 68+d/9q aiimb7l 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 of this proces 6lmas+dzi bci dq/978s?

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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 bri gze-zbszzvr4/i 3)-aghter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce m4bz-i zz-gs)vr eaz /3ore 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 madej*uhd c,z .fd5 of the same material. The length and radius of e,jd . hf*ducz5ach 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 ofea ;t4g4j9kb 3ih5xj b 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 resistb 5it4baj 93k egj4;hxor. 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 inter,3(bh y:()znvr )e fl)snvbfmnal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltby,nh( )v3 r(msnfzb)e lvf) :meter 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 bulb4hpxn0 y1ta 7 hjk+:pmfzchn*9nn w4 3s 1, 2, and 3 - represented as resistors in the diaz0y*9p+hwcn71:4 hmh ktfnpax4 j3 nngram
- 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 alli)0r25o6tiems. h tyl three resistors is equal, which of the following s0my6ilth5e s ot.2r) itatements 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 compd3/ 66 zxg1nnq3w x1h ugh2ewcosed of 5 identical xzuw3 /13hhqgegn 16wd c26xnlight 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 following statements is NOT true concerning the sq42 :tx+z unabyxsv* 6;njphr:gk,b- imple circu av 4 t :+r p,jbx;*xy:6-huzngsqkb2nit shown 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 andY are connected in seri2n0rj,mdon quj.f o9: es to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY a.n2 : mj q0droonf,9ujre 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 through the iden1z )uq :to,btjtified resistor in 5 seconds once the 1bjt , qzu)to: 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 gf n; .r:v yh hl3dh04h18exbp in the following simple circuit have the same resistance, which would dissipate the ggxhhld b10 .ern:p hh;43y8vfreatest 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, tdmaf2 hz0st6xsrd: 1*7 of8myhe current through the 6.0 Ω resistor is 1.0 A. Wh s m s07x2fd8fdyom z6*rath1:at 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 co;,x s5xlew;lvp8t8:a/t p 8e8qdd f wg*ef r9znnected in series to a battery. Suppose R1 carries a current oxqfvptatds,xe fl;/;w:*l wed z pe8g858 8r9 f 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 andR3 are connected in parallel 2n +phta8b69c9bs:jrez6km rto a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipath69b9czb2n6:tjka8 +s rmrpe es 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 120kv ny+ w;ej/ hzy..4ei volts. What is the maximum value of the current u;yjevewhz. k.4/y n i+nder 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 (2(yjrftvzpq o-.x. ol( ijv6to operate at 120 volp ( frt jjixy(o (vl-o..qz62vts?

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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 throqi zwil9 vi8-5ugh a 4 ohm resistor that is dissipating 36 watts of poliq w5z-iv98i wer?

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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 /9q4j w4 kqlpp jq)(exs9.7wbtng) vx used to press clothes is marked "120 volt, 600 watt.” In normal use, tgpqpq4)7sj 4xbq99w/v.w je(tn )lk xhe 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 circh7 a -sye6*juquit containing o76e sju hqa*-ynly 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 following equivalep0+ dnk/ex2 dhnt resistances CANNOT be produced using al2pn dk/ e+xdh0l 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 bnbi j o. h/sx9cq57r(be connected together in different configurations. If all three resistors ab9 irbjx qhcn o.s7/(5re 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 is din8k ul7h59tf*:(bwv c zofxd;ssipated in the circuit. How much total power is dissipated in a circuit *nf;(:f t d7bwukc98x zv5olhif 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, havingnm7ez9 /ptpz/ resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which o/zppmne t/97zf 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 res9gztul/bi99co3 wk2// fwwf8d zj+tkistance of 12Ω when operating at 120 volts. What is the m+8zo/ifu 9 wz3gtkcfkj9 db9t/lw /w 2inimum 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 that(nj*pcj z8+de is dissipating 36 wattjn+pe jc *8(zds 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 dr3leukyav8o7)zd:1 aqaws 13 amperes of current when connected to 120 volts. If the price of ele7k1ed 38v)zaqu al:o yctricity 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 conti5suz/fkgz b+j*(a 2yb nuously for 1 year at a ry *sg(a5bb zu kfz2j/+ate 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 currzdgi1el 7; ,csent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which o,1z ls7 cd;geine 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 ,rxv9 -;d ynpy.z3*q xp0nltvof 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 number of the computers can be operating at the sametimenv xyt;p*xrq pzn3v-90,ly d.?

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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 connectlhj/v +u,r* gged to four resistors to form a simple circuit asurj+g l,/gh* v shown 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 battery is connected to four resisip i+dd *w 2kvf*sz*-v+yz,wl tors to form a simple circuit as shown+*ils +-d* 2vz fd*p,yvikw zw 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 resistors2 oi3,(phuze) p+qn7ki 3qkl )9bbhap are connected as shown. Wi+l3 iq) 7hopz(k,nhb b p9u2ei ap3kq)th 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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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 thra,bcy42+fpaqosdv f22pjdl1, i9dz0ee resistors are connected as shown. With the switch open as sapbjy+z ,2 apidcf0d qdfv 2l4,s2o1 9hown 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, andx;7hydxgisc 4n/;g:ew; t h:z82k q z ideal ammeter, a switch and three resistors are connected as sh:;i 2tkhncxgdq:d z 7w h;g8sx4ye;z/own. 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 showixh1-tqqf- 7mo4z+b l n to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery7ixqlmbz- qh-+of t41 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 resistance of the circuit shown to the r2zll dnr51 ;vnight with resistances ;zl rld5n 2v1n$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 shyj di1pk g u0844m/hk ,gq t:2fotqwl6ows five identical resistors connected in a combination series and parallel circuit to a voltag h42g:ywm14o f j /gi0tlquq p6tkk8d,e 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 shgl h/twdb6u mk 01np/0ows five identical resistors connected in a combination series and parallel circuit to /gkwp0 n mh0/b6lutd1a 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 bulbs are idca 3:nte dm(w03n a9dmentical. Which bulb will be the brightestd33 ancm0:9enwtad m( ?


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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 amme+iu0. ipnrkk. ter, a switch and three resistors are connected as shown. With the sw0kr. +pik n.iuitch 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 ammeter, a switch and three 3kna87hkb e4kresistors are connected as shown. With the swiekh87 a4nbk3k tch 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 ammet;el, oc.awvt /b( 3dpcco06kaer, a switch and three resistors are connected as shown. With the switch open as shown in t/6kov.plcdo0baca ce3; t(w ,he diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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