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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 :5h*cje0tt;/ :wfyyx0dx yhh shown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best dh5ecy:ht/ hw j0;f0 txxd*:yy escribes 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___: ,ept1)uipl m):h8 m4zutkgi______each resistor is the slp1z mi )t:,)8 p:huegiktu4 mame.

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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 9j )s nun7ttr6m :5iivih. 2htfilament to become white hot, while the larger t: 7jvut6ntr9 .ini h5s) h2imwires 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 be0 kvyi l8p/+3ot3jcis the acronym for which one of the fjp/3 k+vil tybc3 e08oollowing 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 .dmi (aoowz upo3l;rg;(sr/(-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 resistord og;lr.maws(3 r/((ioozu ;p?

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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 I- rj;tmd 4 ma: yi/(rkcc.7mpre, w6ysI has twice the diameter and twice the length of I. s-; jic/mm7dwc.y my (ar6:ter,k4rp 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 twij(p6u nt q/n(ece the diameter and half the length of wire X. I(e qnputj6(n /f wire 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 rapki/ +z* h85p h0pnpagdius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of thi+hh*pnp i/a8p 50 zgkps 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 E;yd pime.(pz0 tr(il /e9m,qrtw8d .rdison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make wmt d.pp ide ml/ez;qi.yr((9 ,t80rrthe 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 azchc v w,*q :tbt(3xm4nd radius of eac3wcb:ctq ,( 4tzv*mh xh 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 conne5i - c93vjaddlna4ud 3cted 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 33a ijvcddu4l an d9-5set 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 th kx8)+3 hqb(myqv.6unby vi;k6zg h;z e 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 voltmeter reading is yk3nb6 8;yvhbqku xzgqi+hm;.z 6v)(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 com ni-,,g1k f8fsri/f2tshgj3ppound circuit shown to the right. The three bulbs 1, 2, and 3 - represen ,sfhgji fi2fk-,n 1ps3t8 rg/ted as 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 circuit at the righ9hhrp4j 1su2 ot. If the current in all three resistors is equal, which of the s41uoj rhp92 hfollowing 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 7lk w.tec3xx,5 identical light bulbs and 2 7ewxx, kt. 3clflashlight 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 simple circ):wf/z. oa2(lo n0o hmq7n8rfwsx *tbuit shown where resistors R1, R2 and wns)qf aonol/(8o x7f:*mr twb.z20hR3 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 connectw ll78y+7yqr lxz(1qb ed 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 same battery, which one of the following choices best represents what is r (+ yxqwqll178yz7lb 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 coulo;(zihnr o06u dmbs will pass through the identified resistor in 5 seconds once the circuit hzro(0n i;ud 6was 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 followingf1yj2lx7hgzl8 (h;euvt99 n e simple circuit have the samell9 g(jnx u1yf 9h zvet72eh;8 resistance, which would 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 current through the 6ls abovamd3,*5d2 t;r(ua i 3j.0 Ω resistor is 1.0 A. What iuad;mit *avj or5(2b s3da,l3 s 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 series to a battery. S3p6+wuwi6 yhduppose R1 carries a current of 2.0 A p36+wyuwihd 6, 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 R1k,y;ht -xu, hlof9tu 724gc ch, R2 andR3 are connected in parallel to a battery. Suppose yk7 lf th,u92cu4g h x,tohc-;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 wf (3/k,ie lvoqatts and 120 volts. What is the maximum value of the current under thqv if/ol3,(ke ese 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 lightbc0.y(m ngz : g*lsq3uxulb designed to operate at 120 vox.zm*q 3 un l:syggc0(lts?

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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 ejd(7(s aqu4of(o ag)*4 unvs that is dissipating 36 watts of power?((4se u7a*v) qu (f jogs4ndao

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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 "120n7 zn4 0c7p h,opwk +qbc+7dkw volt, 600 watt.” In cc7nw,7k +7qowpkn4z b0 +hdpnormal 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 resistances could NOT be produced by +s ng *gdf i,21cqg0oe;/tmtia circuit containing only three iegii,fonsgtc;1 + /2mgq0t*d dentical 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 fomk lxghgok(2i9i/+h 2llowing equivalent resistances CANNOT be produk hgo( 2 9/2ghx+iklmiced 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 connea/v 4)n3zddjt(d;0ruab er t.cted together in different configurations. If all three resistors are used in a circuit, t 43 .)nrvt(zeddbadju; a/0rhow 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 pow rojlg:*7v6a g0y1ixqer 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 batqrjiv g1:6* 70oyxlga tery? 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 R2stchp 3:-qod3, are connected in parallel, the equivalent resistance of the combination tch sdpoq3- :3is 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 tha+ ntn ycm75pfmf/-cf7t it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would takepffn-tn7 /y+ m57ccm f 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 flow bn wdsxc o)2008i6ipt3p6hc hs through a 4 ohm resistor that is dissipating 36 watts n ph 0x8ih6b2pciso0c 6)tdw 3of 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 current when connected8c6 (wimz uugbae/px l8,.d 6tah+x. v to 120 volts. Il(+.utvu6ce8d 6.amxhpga x i /,bwz8 f 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 much would it cost to keep a 100W lightbulb lit contin69x.xlmxn t r xu,vdk::.mfa,uously for 1 year at a rat k.:ut9xld.r6m f,xx anmvx: ,e 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 lightbuv(p )(bggv6e - daws;klb results in a power of 24.0 ;)aw-(d6pks (v egbvgW associated 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 0ew,vvs g,i 1a fp0b8trated at 500 watts in a 120 V circuiv1,iw0a 0s,f8bpg evtt. 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 isueb3. ld) 5hyi connected to four resistors to form a simple circuit as yi.elh )53ubdshown 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 re)jqqigfp ;bu2e4:8 bd sistors to form a simple circuit as sh: g4qpbi ju 8qb;)f2edown 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 re ,ymsqkx8ih )8sistors are connected as shown. With the switch open as shown i8ik8,hsm)xy qn 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 resistors are co defyk*5f8 .mqnnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ae*fmd8k.fq 5 ymperes.
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 switchfo b.r ur0ew6/hxwz)/ and three resistors are connected as shown. With the switch open as shown in the diagramzrh0 /)ro/.6ef w wubx 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 sgx6, 6(iyg(;ep9ig .adm:3 jekr ho grhown to the right, what is the equivalent resistance? Assume that all wei6(dj:agkm,irr6xyg;g3h 9(g.oe p ires are ideal, the 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 equivalent resistance of tg on 6z +f(4wf5mr1p)jd 1wssohe circuit shown to the right with resistanc+m o(14f dfrpjs65 zgows1)wn es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resis+k ed1r 5k1 qzho6oai7tors connected in a combination series and parallel circuit to a voltage source. + oka ok d1zeh1qr76i5
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 fm chf.ed k26hp,(ztm0 ive identical resistors connected in a combination f.e hmc0d(2zh m,6tpkseries 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 idenbf47:ccyp+ yqibrv, 8tical. Which bulb will be the+7 :4ycqyfb, 8rpibvc 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 x.lr:pcaea(dj+qz g 5s(l x+6ammeter, a switch and three resistors are connected as lgr +spxc.5jaq azd(: e(6xl+ 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 battery(ztl8onmu7k9 1qbn+ax /wi.o, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram theiln7xawoqn.8u+ k1 o9(z/mtb 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 s-y2d e)ems t/switch and three resistors are connected as shown. With the switch open a ee/y) 2smd-sts 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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