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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 2jzkl+t3)i di/hzt(qelectric current exists in the metal 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 ldj3zzhqi /i2tk(t )+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 paralle.wqu sa,3+q brl, the_________each resisq. 3,urbws+qator 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 filamnis3pv.aiksz,(e: 0 vent wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. Tzip3. sia v ekv(:ns,0his 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 n 15;7kqnqq8eatef 5 ajf 5bq/ hml8r6being replaced with LEDs. LED is the acronym for which one of the following nmb7q8era65e8f/q5;5jnq f t qa1kl hchoices?

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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 +avaas2+n. sbx- c9bxhbjbt+1 boi 0*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 ratio of the new resistivity to the old resistivity of the cyj 1cxxa-+b2bhb+*s.avobibs0 +9a tn lindrical 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 II has twice theqo*tb;*gea r6/.cmm v2lpe5n a/i8g v diameter and twice the length of I. lq 8ra5gb .e*/6anvo/ecitg 2pv;* mm 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 same material but has twice the diameter and half fm/g* 1r nr:ifthe length of wire X. If w:m rfgn/fr *1iire X has a resistance 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 r. This piece v9du+fj8cw,gfb7j r kj3y 8h: of material is then drawn so that it is a cylinder with new length 2L. What happens to the resista+jfr:y,b387vfhdwcug j j 8 k9nce 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 make a brighter light bulb. He dec6 3,d bbhifwq7fx ,e-gides to modify the filament. How should,wb d q7g6-hbexf ,3fi 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 resistors are made of thewtjw8769 wn6 z hw:za07b 1enyit;d oe same material. The length and radius of each resistor is:6 1e 6et8 ;d7nnwzi9jb7o wzta:yw0hw
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 8 vb*)8/zuo wmqsk*rd of resistance R, are connected to a battery in the followikswv*)bd8zro 8m /*uqng 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 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 accompanyi6vg n,b0hm0+lr 7 ul9gwb r3bsng 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 rlgbuh3,6 00mb+wr9 7rslbgnveading 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 righuy e o-i/b4n;fp h4lh5t. The three bulbs 1, 2, and 3 - represented as resistb /eph54nhiu;- f lo4yors 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. Ia5-03 ry5w66j /bqx sajyeiz2bx e:dtf the current in all three resistors e2e5w ajyxq-5tsrb 6 ay/i bj3dx06: zis 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 rig*6qcq.r buxmy r74 qcms x 7++t0l8vslht represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bu.* 7l+q4s+mxrcqmsuq7xr6c0 y8 ltbv lbs)
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(d- lklh ie;q y-oxq.1 statements is NOT true concerning the simple circuit shown where resistors R1 1q;(y xh.k-ll-d oieq, 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 series to a battery. 7z t75hmwew9zyb*f 8/ v0ojjmh)6vruBulb 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 represenvwmyt7) he 0w 8o / uh6rbjzm5f7z9v*jts 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 pas4 4ps(do1nuvzo m a: q-54eblys through the identified resistor in 5 seconds once the circuit lypo q4n4 deo5 -uam14(svbz: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 onf836i;n ykp4y ugc; simple circuit have the same resistance, which would8 ;y ;i6kcnf3goyun p4 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 vu09 hv/,r6)reba aia current through the 6.0 Ω resistor is 1.0 A. What is the power supply, a euvr)ib9ra/ ha0v6 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 qagszl0vo4o -hoy(,pxc6cz 5v*3 )cjlk,c *h R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 Ax op hcq3o,vys)zjloc0 *-cvg6hkz 4l,*a( 5 c, 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, R2s5q j7jiqb/c:jlw. q1 andR3 are connected in parallel to a battery. wcql/js iq5jbq:1 7j. Suppose 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 volts. What is bjs5 qsihusoc.c *7 8,jvi5y) the maximum value of the current under theses5.ci jihbsq,s7 y 8*ujoc5)v 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 resis qn6:6-yi*acl(/us ao/o jwahtance of a 60 watt lightbulb designed to operate at 120 voij-yoan / 6 (csl6*qhau:a/o wlts?

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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 ohmr. 6,roy8lx uueld04s resistor that is dissipating 36 watts of powlruxo80e r6sydl,4. u er?

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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 voli )6uixkk e 5g:.neqn25l(r l5a s.ojft, 600 watt.” In normal use, 6.rkxe uno kagnsqjel() 5 i2.5fil 5: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 c1 xs tj.rlu48dould NOT be produced by a circuit containing only three.ju84 rt sd1xl 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 resistog+-dgj +aj)ehkp e-r *rs. Which of the following equivalent resistanceheg+*kr--a+ dg)jp ejs CANNOT 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 be connected together in8(,kfi6 0gxc3zt*az b85agjod4ri eh tb34oj different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be prodio(dja ri8fta*b5 tzxj ec0k 48o3bg 4g ,36hzuced?

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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 powvf0f e4st +coj:7d ac(a6qydf 1se: 6wer P is dissipated in dd1e6 qefa(w 6+ :0fv:74fayjsctocsthe circuit. How 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 R1 a:xhdw.;1s.r k 8zp5t raqzoux77hhs /nd R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistancerxz7x5rh h7:8. p./qthzau;sw ok1 sds 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 l: r 4qu3i1cx3i d95pv(khlpm when operating at 120 volts. Wcu 34 5k(3h vp9qrml:1 dxpiilhat is the minimum 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 currvcpv0 i 9bby i*+cs22qent flows through a 4 ohm resistor that is dissipating 36 wattsvqy20c bb c 92vip*is+ 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 draws 13 amperes of curre qjl:1ae,k +.k grpdg7nt when connected to 120 volts. If the price of electricity :p,qrdkg 7akgl +je. 1is $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 wou8 8um9mus5*vojnv+ so2r fu g;xn* 6ngld it cost to keep a 100W lightbulb lit continuously fors56 n+ n*;9vugvgu2sm xuo 8j*m r8fon 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 4.00n h:nhy6t 1hc43y1gne A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choyn h 1:4en3yh chn6t1gices 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 computd3vj-7 t-rrdc n9ihimok n;h*8(*d oter rated at 500 watts in a 120*-dm-i;k8tn rdh(o *crv d hit9onj7 3 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 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 re(zd l7ostl)qim .u3x 9sistors to form a simple circuit as shown totu3mol.s(9qz )7i ld x 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 batteryhrix8m o,- )vu is connected to four resistors to form a simple circuit as shown to the rix)orvu-, h 8imght.
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 batte,sqf f -d/u/c/x(lp spbqq )3*u lfb3cry, an ideal ammeter, a switch and three resistors are connected as shown. With the 3s,u) ld / fp3clqxq /p/f q-(fbcusb*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 three resistqv :zm:t,pefg4 1 vq,nors are connected as shown. With the switch open as shown in the diage,fp:4qvm, t1z v :qgnram 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 and three resistorgfwos)8x)h-x s are connected as shown. With the 8-))hwo xfsgxswitch 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 equiva/fyail z3 , s daifu+qyx(/b/*3iar;ulent resistance? Assume that all wires are ideal, iydq3 alar,i(i3ux/fu +;f y//*s zabthe battery 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 equivalentdkg 5tp-t9d3j2od 7 az resistance of the circuit shown to the right with resis7adt-tpdzg 9jod5k23 tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 m a k-hcyk:yx+gb4p.y2n*)z zmbination mk x*g 4zc bh2)k+.y-payy:nzseries 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 resi xpp0jzfl839 sstors connected in a combination seriessl zfx0j8p9p 3 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 bulbs are identical.gxd pdp tcs-t4u;7t8qo (( 9zy Which bulbs o-(txd8u qd;tt (g94p7pczy 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 resbjrj76lfy ursj2,o569 tfp2wistors are connected as shown. With the swifjwj56b2ol ufpyrt 692js7 r,tch 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 resistors a f p63sn-6mxcfre connected as shown. With the switch open aspmf3cn6s-xf6 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 batto+uh)b.*rjkvs tvba, 2q vb*3ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amme+q .32hb* ob,)kvsr *ubavjtvter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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