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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 met.we5gcr), gdtal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow thro.r ,t)cged5gw ugh 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 rel3.r f4er04ci 2ea5czlg xn8r sistor is th2la0 34n84rr5iexc.rfelg cz e 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 thrj9x .4 eouk.ui 1lngm,ough the thin filament wire of a lightbulb causes the filament to k4 eu i,o1nljum.9g.x become white 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 li,e/d8;qhq ( d-ytaetughts are being replaced with LEDs. LED is the acr/dey,8uht;d-a (etqq 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 88id le 9tan gg.yvue+(vx7f4and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that the new lengthy+ v7x 8d(vn8f gaeulgtie4.9 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 th;hrcuv:jcq9yf .ov * 1e same material. Wire II has twice the diameter and twice the length of I. If I has resista9;h1cj u:*cv y. forvqnce 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 o ff 7ilfwfw/q 2b1g)9of the same material but has twice the diameter and half the length of wire X. If wire f2fq/w9)lf1o ifw 7gb 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 lenwx- +mkbe3fs2ab *w:ugth 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 r wsm+ eu2f*bk 3:xb-awesistance 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 brighteg bvnphhme n;k6/*3t 3r light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce mp36gben*/k mhvhn;t3ore 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 resistog5hft 3-3ykne rs are made of the same material. The length and raf-ten y5 3h3gkdius 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 to a battery in th*)91lyw8if- vvo(ke c idj(uqe following way: “Two resistorkif(w1ei-(y u )8qc*jvod9 vl s 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 accg 0 c9dpibu-v(;;fefl5bxd z)ompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammete cvid9 e0 -gf5pb()ldz ;uxfb;r reading is 1.00 mA. 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 compound+1f.3qjnleq:v7j y s x circuit shown to the right. The three bulbs 1, 2, and 3 - represenq3l jjy+s:xv. n1qfe7ted 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 right. If the currenaiere6g ;q q::t in all three resistg:6rqi:e a;qe ors is 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 right represents a simple electric circuit composed olmoqk96p,c6 pf 5 identical light bulbs and 2 flas66q,k lmocp p9hlight 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 tk( z 53uvakm-brue concerning the simple circuit shown where resistors R1, R2 and R3 are have equal rezu -5vkbam3 (ksistances?


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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 tgh 3 grb4muw1f-l2g/ 5i6msmconnected 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 folru1g-3 g/4imbh62 s5lf gm wtmlowing 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 ieb -anwvx7rd5 ;5icn8 xb )xx;dentified resistor in 5 seconds once the circuit was closed rxcx 7n;ndxv);5xbw i -abe85?


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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 th(n4fr(d.pr)z/v6nuuhi /nra e following simple circuit have the samv/rn d( () urhna6pnz4fir/.u e 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 thr m98.3jqgcv:respbl *o 31ozr9 p*ne6 pcnu0xough the 6.0 Ω resistor is 1.0 A. What is the power supply voltag: *b* cp3pe ngr8o90p1q cxz 6 sreo.3jlnmv9ue 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, hpd*ejeo 0)rgpu5,6j and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and Rj*r u 05,pe)pge6j odh3 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 to au-xfq- w+gxo:aegqn)7eir48 battery. Suppose R1 has 2V across itrfg u7n -ew:xa+q-8qgo)e ix4 , 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 bch ls*ak zbe2oo,+31nkjp8y 7) fw17mti)rmrated 1200 watts and 120 volts. What is the maximum value of i o7jlrn),p2c3m+ )s e81bmzaytkbo kwf1*h 7 the 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 resistance of a 60 watt lightbulb designed to operatez vpic j-ys4khsl9789 at 120 voltsvc 7p9zh - j4ysl9k8si?

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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 that isuspd9 (ba7i+b n( 6ria dissipating 36 watts of pow saupn6r+bb(i(i97 a der?

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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 watt.”zu(/g)nmsf nj qr83/t In normal use, the current gs/)n8fr3zu( q t/n mjin 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 circuit co +a8yk 8gp*)dt 3rz5cyfmfh6bf+k-aontaining only three identical 6Ω resistors+ *gok- 5tc8hdz6fbya m k8frfapy +)3?

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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 folpos,m h u 1mdu0cdq/3mv21 7kilowing equivalent resm, odp mm2 kq/1dsi3huv0 7cu1istances 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 togepj lv77:nv(kvwi pp-snk*7 wx3-d9osther in different configurations. If all three resistors are used in a circuit, how many different values of total resi3j*n7wipw(ds97v p-o- vnlk p7k: xsvstance 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 res)qxt3) u7gldbjd-pl6m- lz7 oistor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connec)mq op bl-d7l 3 ux-l7jd)zg6tted 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 Rsa r1mi0w ci(g2uj x092, are connected in parallel, the equivalent resistance of the combin mx201r isu0(c9jwgia ation is 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 su+.4yw,-zx3eitx 9yjf a cou0jch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg .yujfz+a0 9,x4e3xt- jyoi wcof 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:+v+b lkkne+p o/gbug*n0. s q,qprr4 is dissipating 36 watts of power? lnkp*b, uvs rnpgo0egr+ kq+:+/q.4 b

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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 ampeo2l:rf 0 q9nx+hwj7s lres of current when connected to 120 volts. If the price of electric7qow:fl lsh+jn 9rx20 ity 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 1+xblh /d , e/he1m8gzldh3o m100W lightbulb lit continuo e3mb1o8/m lhh+h dxg/l,dz1e usly for 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 4.00 A through a lightbulb results in a power of 24,i;z4yn exy lv3cx -sl+ey );i.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbu4 x)yvc;3l-i ;iyseznyel, x +lb?

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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 5 z,5f* d g041howoyvug00 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere ughg*vdzy50oo14 fw, 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 resistors to form a simple cifghdo4mzri5 5n54w* djhn1c ( rcuit as shown to t5m(zf r 5 g54nn* d1chdwoijh4he 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 resistors to form a simp cbjr 0j+ uqy9*+wlx)ple circuit as shown to the right.xjjurbyp0c+*)w q+9 l
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, a-fn.xsk;89nsqrr*bb wr b7 0xn ideal ammeter, a switch and three resistors are connected as shown. With the switch open aw.r97bx-nb;bsxsr nq 0k8fr* s 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 arw+ it h;sm6ko3e n39, m q;wlsaf,0zfye connected as shown. With the switch open as shown in the ,+s3;;lonywfemw3zf06qs, mtk h i 9a 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,v yjt6axtw-1h; f-cy54xc (mi an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram th(tx jy-1a mxy5t6- wc; 4cvihfe 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 equivalen(uzx )6zr;8g(m eebhk t resistance? Assume tha8ge()6; emz(hxb zk urt all wires 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 the circuit shown to the riangi l1923dh+r+ r 9 9yaqynuhght with resistancesh9 nh2qg9d+n9+ry 1uli 3yaar $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ov*8z: k7 wnq1k7vbyyt 6v)/y le7qfxa combination series ael1vt*7wqxf oqybvk/y:8nyk6 z7 ) v7nd 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 fd8tghq ead k25. l1 t,5tk +bg7a:gxsaive identical resistors connected in a combination series and parallel circuit to a voltage source2+ad7xsalg:t .b515a8qgkk gt,dh et.
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, al- r4zi+zpj y;ge1 ph0ll of the bulbs are identical. Which bulb will be the brightejzrzlgy; -4+pep i0h1st?


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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 contmph- 0,*v fganected as shown. With the switch open as shown in ttp0fvma ,g *-hhe 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 batters (dvo)u qc bm5u,tmu8s *vn)0y, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readm)su qvu8 t,m s)u5*0vcobnd(s 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 o+kdz1 - pfpr. ).pxfdthree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amzd- +1). .dkrfppoxfpperes.
When the switch is closed, what would be the current in the circuit?


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