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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 resis9 v,kabxesn; l: cfz00tor connected to the battery. Which osfv0 zcanxbl9: e ,;0kne 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 connected in parallel, the_______q6tj won2j vqvo mb831mb/09 mr4y7tb __each resistor is the s0/tbmb9mv4 8ob j6rtqmvjwq7n 32y 1 oame.

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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 lightbulb causes the fi llpfr .+qh7)p1pb y8kcw46y klament to become whitew8 by1)ppk. +qykfl c l6prh47 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 is hlgq )lq ng7-0the acronym for which one of theh -lg )q0gnql7 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 cross-section 13pg48r fobiyp -s xcu2eo1*vzhw00val area A. It is to be placed into a circuitiy4c3bx1vo-uf w 0 v e p8*ro1zhg2p0s, 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 of the same m;+ w9/ kr 3 u.j)gmzreihnxv,oaterial. Wire II has twice the dnr9) 3 ,.zje/mk+wv;xhrgoiu iameter and twice 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 same matq3cujfxm)7e 308t p hherial but has twice the diameter and half the length of wire X. If wire X has a resist3xm 7fu3 c0 phh)q8ejtance 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 of matwcxp 0q,:4 f,kkyb eq7l8q q6derial is then drawn so that it is a cylinder with nfqkbqxy4w:q,8p0e6 k ,qdc7l ew length 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 make a brighter light bulb. He dec:( w)q/:mtbnn eatr)1 i:daliides to modify the filament. How should the filament of a lighnl )1tirat:w(:d)a/ q en:ibmtbulb 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 tps+) i(:fkgezj 3d91hxy-;skam ;jr70xmf sresistors are made of the same material. The length and radifs: 70(edx;;gjh-s ra3i zym9j)tskkmx1fp+ us of 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, each of resistance R, are connected tlw:wp r4 :hw/ouy) g3wbw. 7ebo 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 resistor.” What is the equivalent resistance of thi7wuhw4ow ebp b: :3rlyg.w)w /s 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 diagra,:m8 fo1r5tku lfy:x wm has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 outxkf8y5lr fw,::1 mmA. 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 compoun0o*d4 txnfm m-d circuit shown to the right. The three bulbs 1, 2, and 3 - represented as r nd4* fox-0tmmesistors 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 thqt7odua:9x1zwym 29v6b x s pa 102awye current in all three resistors is equal, which of the following 1t162aupdw b 09 my2va7xs9y wxo:zaqstatements 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 a66 hjqt ype+a rn6i: 3g/dui9eyy.re,t right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight ,y3r6/n ptee j .6e ayruq6+d9hiyi:gcells. 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 fol(9,npfd-zxro f -owb.9d kw o4lowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R39dn(wb 9 o wzfxd-o-k.ofr,p4 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 ccu *uek;ruki6 *h- s lpuisrxf*)81i7onnected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY auk ix1*u)sl*-hif6 u ckpurr* e;78sire 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 w7wnt+uq noth 68jm 3w4ill pass through the identified resistor in 5 84twt+n7qounh j3 w6m seconds 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 rdst6kv td3k; /;wndt ;/-nkb in the following simple circuit have the same resistance, which would dissipate the greatestr/dbntnt6k v ;3dd skw;k;t/ - 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 diagreg +( lk(8 pxgsco2ge8am, the current through the 6.0 Ω resistor is 1.0 A. Whae lcx8 8p kg(2sg(oge+t 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 6*x0m(lwir y yq v.f-fconnected in series to a battery. Suppose R1 carries a current of 2.0 A,(lf6x 0yvf yw*.-rmiq 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 conoms.qkb 5pf59qtf) :anected in parallel to a battery. Suppose R1 has .a 95:fktbs)5oq pfqm2V 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 wattos irb7t 8d2x 3g. 3ywaaz(jc/s and 120 volts. What is the maximum value of theaaw 2s( y3dijgzcb3. x7/ tor8 current 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 resistany- o6g78x0xsj m h*eblce of a 60 watt lightbulb designed to operate at 120 volts omhxlj x7yb0*6 8eg-s?

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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 thg6nqkk3u8ei wr i04 w)at is dissipating 36 watts of poq g 0iwu3w8irek6n4k) 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 used to press clothes is marked 4 +r7);baff z5xvzisu"120 volt, 600 watt.” Inz) f;a4uib 5fvxr+zs7 normal use, 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 r 4zy1:ij: c,c v683cp vlecjbfesistances could NOT be produced by a circuit containing only three identical 6Ω resistor4v3 y6lcv fj:, :1epczcib j8cs?

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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 8v9+3jc; fc ,g ph9ilnzagf5f Ω resistors. Which of the following equivalent resistances CANNOT be produced usvf,98 n5lip ;3 +ccaf9z gfghjing 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 toget6uwwp 7)zsh2dw+ o*5x4d 8hrg ,loupnher in different configurations. If all three resistors are used in a circuit, how many different values of total resistan sp5un 2*h68wgh r47wlop+zxdd)w,u o ce 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 ba/b ojwc:s8 9/06al5 zuzgwwh rttery, 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 b:zl5owww/sb0zhjc a /6 98u rgattery? 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 and R2, are connected 2apf6)2bfq*yunf1u y7shyn.e9.d puin parallel, the equivalent resistance of the combination is 5Ω 7f9uyp)1u .yd 2 hpn.f2uya q*6sfneb . 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+hib/ . t3ns,gzl7 tjcc*t /:ddq q,xs designed such that it has a resistance of 12Ω when operatinz:*qqi,tdn7/+hl t/d3.jcxt, gcbss g at 120 volts. What 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 current flows through a 1 moqc/s77k )b*dwqx uogl26ctvi4.t4 ohm resistor that is dissipating 36 watts o)4o.u7wdsvgt/q * t6k qcblx i712ocmf 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 amperesfdacl(r-o4b( of current when connected to 120 volts. If the price 4lra(obd-c( fof 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 100W lightbu6.u oc:k83levq cv ko37sm1inlb lit continuously for 1 year at a rate of3icv8:v3 l.1m n6koq 7okcuse $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 throug6-6dyqkfqjb407p ig gh a lightbulb results in a power of 24.0 W associated with the bulb.706 fjik gybdg pq6q-4 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 fame ,cf mq ov9 0xp,gl94fma+b:uwe:;u mily of 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 thb ve:0 u9gmc4,,x9o:l m;ffw qpuem+ae 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 simple cjs(vo/ nvc / 0as-mim7xle( j5ircuit as showvo/av- j (7lsi(x 0em5mcnj/sn 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 connectedzs 9o;a(nlq-mz7br ,o(f2z xt to four resistors to form a simple circuit as showa ;xlb (omf9zrq-otzs, 2 nz(7n 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 battrt7krkd8oz t78 7x2mk ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown xkk8zdr877t7r kt2 moin 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 ad )2 kg0q)irg1 c+fkgfnd three resistors are connected as shown. With the switch open as shown in the diagr)cg12 i+qf0rkfggdk )am 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 p5 k (: xuz27kaq*c/a, uvurjkresistors are connected as shown. With the switch open as shown in thx(:a57kkuc ,vzuaup2*rj k/ qe 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 sh e6mpo8nl+jx2mbtv4 z*oq* k+own to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical rzp8b*x6k4om *+ etnq2+l mjvo esistance 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 f3vc2vt2 be(wo1 mzxwg/)me4j p s he:*:r7racircuit shown to the right with resistanc1s(/r 7e eovjet*3 z) w:acm:ghr bmv2p4xwf2es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 xz c)nwy0q4+p/) xann9a3x dg in a combination series and parallel circuit to a vgx aa0nn)n+w)39y/xdcp zx 4qoltage 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 resistbw/zu0 lh, mke2yr*wy;p5xdhrjx n092s,c 6f ors connected in a combination series and parallel circuit to , ke2c2w5xlyhjd0z r9,yswbnrh/;u0x6f *m pa 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 bule1ogprthbgl527,3 ivbs are identical. Which bulb will3v p2roge g1b 75itlh, 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 c)oh 9,6orrx nconnected as shown. With the switch open as shown in the diagram the a hrn9 oc),rox6mmeter 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 resistorsaxo/k 60 ax5leh hpi l5 5)cy(l6p8kas are connected as shown. With the switch open as shown in the diagram the ammeter reads 5e5x0plaa6 6ls aic8hk/x5 lkh(yp)o 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, anx0i*5g8n s +qrafmp;i ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter mra 8fg+0n si5i*;pxqreads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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