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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+bla d8l ao 6jg:: rwe4s0h0he 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 fiel:r0 l8s+: 6e jhodbalehw0 4gad 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__+m lox.u+40tc*c a tzxs-l9pj_______each resistol.x zxsa o0c*4+tpu9jt+l-mc 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 througl i) b7)wcw:de n iix(:zpp/5ih the thin filament wire of a lightbulb causes the filament to become white hot, wipzliieb):pndx ( )/ 7 wi:5cwhile 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 ar2tfpy vev63dbm7r x5/ e being replaced with LEDs. LED is the acronym for whichpy235t v r/xe7vmb f6d 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 reslf2bei* j z6swpl- oh:ug,5.listor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half5z o,-hlief*usg.j :ll bwp62 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 madei:lj(k+ l y,bw of the same material. Wire II has twice the diameter and twicljiwy+b(, kl:e 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 matmdlt4l:-q4tf:zr2e b erial but has twice the diameter and half the lenlmfb-z : 4dr4lt q2te:gth of wire X. 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 resistor has length L and radius r. This piece of4yao1iu9vg q * 4eyf2s material is then drawn so that it is a cylinder with new length 2L. What happens to the r2guyif *o4s41v9eyq a esistance 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 E g bougm4up 2uk/zh9-+dison wants to make a brighter light bulb. He decides to modify the filament. How should the ggo k2-p4/z b m+h9uuufilament 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 samec1.h uas goab(,7nt 0fe08mund),rp z material. The length and radius of each resis cfgp ,,u0r7at e(08mso dzb.nha1 un)tor 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 connecteinnqp 9:vvqh. b )*hr chbv.(r7ak2g)d to a battery in the following way: “Ta*n h:)vr ) p (bh7cik.qrqh2v .vgn9bwo 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 accompanying circuit diajj njyu4 nm 1tn*2l8/e y*r*1ow;kzqp gram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readin4 nzlerj*t8wkyj j;*1on/n*1q2p muyg 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 right. Thgs8 atz laj/1bl 4t7q)e three bulbs 1, 2, and 3 - repr t4ljb7l1g/) 8qat zasesented 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 simp bj q;dor5(ko,kml4.lg-p5p ble electrical circuit at the right. If the current in all thrp5 glm5qjdob-; k (pl,k.ob4ree resistors 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 simple9h n5b8e3i biivj:j4k electric circuit composed of 5 identical light bulbs and 2 flashlight cell8 hjink53i:bi9 ebjv4s. 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 tra2a4wp g(7)9*8zlaujqcb 0 g fnzzro+ue concerning the simple circuit shown where resistors R1, R2 and R3 are havelr0qa*7nu 9cgajp )4 a2(g8 o zbzzfw+ 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 agn m *40km) uk-94ioi pazqcx0 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 bestnpz4ku 4gm )kmqi axo*i-090 c 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 thebk+gof2 ;y07cft0 2d6w8 bm-gqtsdc g identified resistor in 5 seconds once the circuit was closkfctd0mf s28 q w0gdb6g7gc+toy -2;bed?


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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 txt+qja/ 83uhty v*g,che following simple circuit have the same resistajt*x+avqthcu 3/, 8ygnce, 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 currenukj0e-otq06a*--kp f qbr,y kt through the 6.0 Ω resistor is 1.0 A. What is the power supply vol-k-fpq0y 06 tar -koj q,bk*uetage 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, pvc1z2q k+c a 8hmi9;j9 bhhl8R2, and R3 are connected in series to a battery. Suppose R1 carries a current i 9jh8ahm+cc1vz9lkb8 h2q;p of 2.0 A, 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 connected in parallel toid*c(v rspo ;;7 iis.w a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Wi sv.rsd;ii;7 ow *(cphat 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. n+:donar2ic2 What is the maximum value of the current undod2i+ 2rnacn: er 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 (:q0(-3x7fpp j fzz/ioe jk cz1ie/h js;yu 0twatt lightbulb designed to operate at 120 vo0xpkqy -f0oe jf73;uhse(/ cjz /z(jp:it1 iz 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 flip9;yxx:s auo 0e- b0kows through a 4 ohm resistor that is dissipating 36 watts of powek axi90;:u-p yox0sb 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 presc, e0- 6irs/ut gdkq(ms clothes is marked "120 volt, 600 watt.” In normalemu0kqsr,tg/d6-ci( 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 .uo3ac0l3ei uh2 n2+hxanr +/4 uopny6rdnc5 a circuit containing only three identica4 l+ra cy nnuh/neu365.ai3022cx+rhn oupodl 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 followidahe-8jyb k :194b. j8velq2 y;rjqsong equivalent resistances CANNOT bejjoqh-1 e.vye84r d 8;ab :bs92 ykqlj 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 togethefg ll+.-hxevja8 c9kx5 1w t3fr in different configurations. If all three resistors are used in a circuit, how many different values of total resistancexf-vw1.axc9l3eh +g f k5jl 8t 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 6hym06d. ukdxlv q .i2ig *la +,uhdp*battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connecteddku,h*.q.gd6iavhp*il 26 yux+l d m 0 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 resistancg69n1t j r*std2vv6gc e R1 and R2, are connected in parallel, the equivalent resistance of thejcvntr6 9v 1sd2*tg6g combination 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 such that it has a resista7o f, p+o6o;k/ +dyf/ko mpczvnce of 12Ω when operating at 120 volts. What is the minimum amount of time that it wopy oz v;pk/c+fm f7o,/od6 +kould 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 flowsql-r43h rwzc: through a 4 ohm resistor that is dissipating 36 watts of power4lw3z h -c:rqr?

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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 co,h-bm dcig5 r1nnected to 120 volts. If the price of electricrmhb,5c-di 1 gity 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 ly;3ycq8 tb c8d*wqu +o wu9*wql/upy .ightbulb lit continuously for 1 ye qy * pww39/uqbo8+uc wuc;y lqy.*td8ar 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 w( x73v/c5w:zn pkqfy f b(;f8ufy(bx 24.0 W k7y;w 5(v q8ffnz/(x f (b3:cfwpyxbuassociated 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 fn(lkk -/p3rdr amily of six owns a computer rated at 500 watts in a 120 V c3 kdlrn-pk/r( ircuit. 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 res9*lm sbf/fo2 c:fh, s5t:j fbrh;haf)istors to form a simple circuit as shown to the ri 2ms9o)hj,;f bh f h: tb5ralcs/*f:ffght.
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 batt2 0-3u8i j8uv3ruijsfbz e3/nsssde 5 ery is connected to four resistors to form a simple circuit as shown e33 bu/3zerifju-s0isujs5d 8nvs 82to 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 battep/ff ynjh 0)msvlh:0qdv(t3.x (xhz0 ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown i/p z( 0v03hhtdsv0q n hx)mj (.yxff:ln 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 isfs 8fw dp41/bdeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the dias w4 fdf81/bpsgram 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 idekntyq 36 dec(o)5 c(yoal ammeter, a switch and three resistors are connected as sho yt) o(ce 35ydqo6ck(nwn. With the switch 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 s/ :7chl snraz sa; azb59vxb4w:lr --whown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all thal-x/ws; raa lnr4 -5v7b9w:h:sb cz zree 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 cir6cbis9sw .std u-i p*ho2x41p cuit shown to the right with resistansb1 o* -puxt4ciih6s ds9w2p.ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identi)kwvnynfn1cen/ .m1 *h -kof8cal resistors connected in a combination series and park ncnn *1w.oy)vefmfk h/8n1-allel 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 identig7o d-v6n -uwj3j qxhaerl:*5cal resistors connected in a combination series and parallel circuit to a voltage sourcrx6*ja- 5hd7 vjwe3g:uqoln-e.
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 zlw) eb2p r/t;diagram, all of the bulbs are identical. Which bulb will be the brig 2ew;t) rb/lpzhtest?


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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 ab2)fsgth g)p 5kzf4m 1mmeter, a switch and three resistors are connected as shown. With the switch open as shogsh)fk54 m)2g1 ztbp fwn 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 battermvr z/icrb;g7w f(4: xy, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as showrgm4;vw/xbf ( rc i7:zn 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 swir p bx4 fm+.yaru +.sb9g1kd:atch and three resistors are connected as shown. With the switch open as shown in : +4a 1xdr b.+gbmuyak.sfr9pthe diagram the ammeter 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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