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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,i tib96mye.m fz+nl 1, an electric 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 the interior of the1nizf.e,yt i 9b6m+lm 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 resis ze-gq)cbis0xqnwfv:- .(w k+tors are connected in parallel, the_________each resistoc 0+q:q-)ge. izxbns-(wwfkv r 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 fq* 0/ut2gm. gonse gh9ol7oj8ilament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens bej 2tg8nhoe.uoom/*90 qgg7 l scause

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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 housewm zzhem 1+d*-hold lights are being replaced with LEDs. LED is the acrm+hdez1w * zm-onym for 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 graphite resistor has length L and cross-sectional area A dn 1izk.ao9z8. 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 oldozkanzd.i 8 19 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 madx 1,u zguh,etf +97sqze of the same material. Wire II has twice the diameter and twice the length ofzteq,s ,u971 xguhz+ f 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 maw x((acinr)zd9j1n1 nterial but has twice the diameter and half the length of wire rc1 (x)n9i(ndz 1wn ajX. If 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 resjw13/vkd3.: pxzjafs5mq ,2:j zn toa9cm y ,jistor has length L and radius 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 o 2z,z:aw3jf : j.qma,knxv td j5/1c9o3pymsjf 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. dfa*o g,2 smx6tu,e*v He decides to modify the ft2g das*fe6x,o*v ,mu ilament. How should 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 the zk46j+ n0qi1pty /trn same material. The length and radius of each resistor ikjn1yt p+z/ 6rti40qns:
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,3ixnc1hfxp 1ch svkb4w1 55*n each of 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 resistor. This set of thrh*pnc1xxf c5ni 35wk41sv1bh ee 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 accol; z037:v sbijz bm0vi) i2lmimpanying 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 most nearzm;7)zlb2j0 3 miilvv:bsii0 ly:


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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 compoundv) egu 0r9 vzqfwfwjur7wrdu9( :-rwu39l42 z circuit shown to the right. The three bulbs 1, 2, and 3 - rerr-9 9ff 9v)v wz d w0u2(:l rj4q7zwgu3ewuurpresented 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 cirmey6h+j0p+kp m*c sk, cuit at the right. If the current in all three resistors is equal,k*mh, cmj s+p+60epy k 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 rigm4aww 0 x cnm t.v91oo kw4t,1umem:3tht represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whn x,k4: tt1em1mm o4 tvcow.0umw9w3aich 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 concernin9q 2b+vxezvl*q(a nz9g the simple circuit shown where resistors R1, R2 and z2znv +vlq9*aeq b 9x(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 seg w-s.ad:c l .g2mi0qeries to a battery. Bulb X is brighter than bulb Y.igl ms-:20cgqe.w .da 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 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 pagfuoo* qw: a7)pp901rvpq qm 5ss through the identified resistor in 5 seconds once the cupw0:q) *rq9 ga7m1poo5pqf vircuit 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 fo2 ;, ohoikkk5ullowing simple circuit have the same resistance, which would dissikk2oh,ou k;5 ipate 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 sb 9 5vs;n7nowcurrent through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage7wns ; 95vbnos 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 batart67otra kp -y*1-06ui luh 5op6nqxqko/z0tery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is the voltage across -h prx/q7o1kko l0o 65*iq6tz tuapa y6urn-0R3?

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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 a5t(aduxk q o;/ndR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4/t(o5 aq dx;kuΩ, 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 the ms2 uve)lrp,gzt 9l9f95 *bkioa1b f2 yaximum value of the current under these condsb9l99,fkgfv)z*ye1pl a5iru ot b22 itions?

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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 des,*4ph 5emnxqwa u3bkyzy *9 m6igned to operate at 120 v34uypw y xb*,96e qzh*ak5mmnolts?

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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 ikwm/7.wwj.nfa9 ( cc through a 4 ohm resistor that is dissipating 36 watts of pow7 c. /9w.kfjmw(wicnaer?

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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 arevfd5d s bs07)7*kawatt.” In no0sa7v ef*b d57rs)kad rmal 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 codeehk6+ox -z1uld NOT be produced by a circuit containing only three identical 6Ω resisth+z1 ex6-dokeors?

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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. Whicfvf/ )v-dxjt9fgg chm )7x08r h of the following equivalent resistances CANN9ftcgjvr0 x 7x)m8-vff)h/d gOT 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 difwu4t/b w w/0x/ewso j7 f*aa:eferent values can be connected together in different configurations. If all three resistors are ujwsfaa 7/www:*ex/0ot eu b 4/sed 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 tot 5ws3wcubr,y2 ;9ana:cn h p7hal power P is dissipated in the circuit. How much,b2 hp ;sau5wc n :hc3y9na7wr 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 and R2, /zfxy+6jgna6d0 7, -lgevfbpare connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances ia7bpgnvf6,ey6l x- 0fjz+/dg s 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 -v n0wdwrrp-cw+ otyf,p/*0 cof 12Ω when operatin ntcwrdfw+*v-or0,p0ycw-p / 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 4 ohm resistor that is dissip3e8 :h0cfvm:q76ndjha kpn f1ating 36 watts of powefj a1 h v7dchf:m8 6ne3:qknp0r?

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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 currext:/xq at: h0wel,oyj0.m z ,xnt when connected to 120 volt,x /:mq:yle0,xt0zax.ojth ws. If 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 lightba1c., -*plxv9 vpgew 2 kcinv;ulb lit continuously for 1 year at a rate of e ;clp2*1a -k vwg,v9 .cvnipx$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(bkwc2xns1 30szw 1 om A through a lightbulb results in a power of 24.0 W associated with the bulb.xokzbnm1 (2 013wws cs 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 wr(ue0dt3/+p 5p zrxp a 9g33umks n,xcatts in a 120 V circuisr5 g0+x(d3akur/,m n9px ptue3 c3pzt. 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 resistor bl :vl:2bpru4s to form a simple circuit as shown to t rpb4u l2b:vl:he 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 d )+zple29vwtsistors to form a simple circuit as shown te29tz vw +p)ldo 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 vp7cl(:ax 3 3qlsvz-i resistors are connected as shown. With the switcx q l3csl -vizv(73:aph 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 resistors are connjmc3 *r1xlwj: 6 ubkh2ected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 2: m* l16j 3rxbhukjwcamperes.
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 tori ei86j 4 wl,qft(*three resistors are connected as shown. With the switch open as shown in the diagram t,i8row*iqtt6 jlef4 (he 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 qhny4 rd(r0:/z x84n2nrwf za the right, what is the equivalent resistance? Assume that all wires are ideal, the battery haz8 df:4ya4n rh 2zrrxw/qn0n(s 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 th.k /c2lqlvth:e right with resistances ck /:h.l2t qlv$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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: 6xwkyv+zum 1 five identical resistors connected in a combination series and parallel circuitxz 6uvy+:m w1k 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 shvbik3y+pv ww(9t-rcr99 z; w qows five identical resistors connected in a combination series and parallel circuit to a voltage w-k9tb3i9+(rqcw ; y vv9prwzsource.
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, bnzk:)0gd )dm all of the bulbs are identical. Which bulb will be the bri d d)0kg:nbmz)ghtest?


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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 idea m3fdwo*.kxtqsn d9 /pz;8h*u l ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads ;f .3m9qk*z8s* upxw ohd/tdn 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 switcswvg1k-:8 sz oe6 yae8;l0at ah and three resistors are connected as shown. With the switch opo8 ;lswkysg e a-16a8a0zv:e ten 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 ammeter, a switch and three resistors ared +q./s i kwt,6q/yl)1glmq .)espqiy connected as shown. With the switch open as shown in the diagram the ammeter qe).lwl,y +qg) /ip6qsqimsy/ td 1k.reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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