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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 mzm6qc)a/*(7rckoge g etal 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 acc)m*k ego67gr/( zq 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_______7.a 7th)xwf jn__each resistor is the same.f7a.wn h)xj7 t

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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 wirewj251ydd7g av of a lightbulb causes the filament to become white hot, while the larger wires cw jdydav71 2g5onnected 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 b,r zss6bi/c/1 i 1lpkg pn-pu5eing replaced with LEDs. LED is the acronym ficgkr,/bp 6 5 i1p s-lzpus1n/or 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 re0,ybrr, to5cvz.ml -osistor has length L and cross-sectional area A. It is to be placed into a cirylo.t-r 5zov0 c r,,mbcuit, 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 material. W 9nnydr8fk 8-f-*ufr:n ( mpuzire II has twice the di( *zr ukfu-yn:f8-nn mpf98rdameter 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 material but has twice the diameter and hn2w p6obzh 21nalf the length of wire X. If wire X has a resist 2obw1hz 2pn6nance 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 v+i7hs4h7s ucx)/hp t1) jls(g5 zqt tlength 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 resists )zt7hx(ssgh tjhc)u+ 7piv/q51 t4l ance 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 Thomakirdyh9qit6.z m k bks)9//0ds Edison 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 the lighthym 69db9 zi k0.k)t/dk/iqrs bulb 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 materiaie c(:qp* 6sonl. The length and radius of each resistor i6 (iq*epsoc:ns:
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, eactljk2nujoz3 0 mi7 17vh of resistance R, are connected to a battery in the following way: “Two resistzlkn o17u27 jm vti03jors 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 diagram aepl3/ff sm6 g7 n2li5has internal resistance 10.0 kW and the ammeter has internal re gnl flia e763fs5m2p/sistance 25.0 ohm. The ammeter 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 circuit 8hzl 0 1iv-ngsshown to the right. The three bulbs 1, 2, an8is -h1g0vzlnd 3 - represented 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 current im qzx5giv7o*.n all three resistors is equal, which of the following statements must be tq 7zov .igm*5xrue?


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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 elecqhyck :r/729ucx8cw ctric circuit composed of 5 identical light bulbs and 2 flashlight /xqcky97 2uc8ch:r c wcells. 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 followabb3j,n q(jq5ing statements is NOT true concerning the simple circuit shown whejb3n bjqa5q,( re resistors R1, R2 and 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 series to a /c9 7vmdsf 3mvbattery. 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 battfvm3sv d/m7 9cery, 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 o+ 7ol:4jqbveml ;dqt 9uuhq l(v.;8c will pass through the identified resistor in 5 secondl:vhqvu+md ;7(bq4j 8e qo9t cu lo.l;s 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 in the -u-zqqqn yb za;r-9tb114aqmfollowing simple circuit have the same rya9nq1 1q4ar-q-qtubmz;bz -esistance, 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 6.0 Ω reswz ;0ncalnx0 rn5q*7xisn lzcx *0 7wn;xn50rqator is 1.0 A. What 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 connected in series to a ba.8)dbxyvblru(t9i.gh( qz/ lttery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω,h9qlib x8 (/vd..)gz(lu yrbt 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 differevzyq+pnxun3; 1c9 k )fnt resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R1)f +qvpy;n xuzc3n 9k2 = 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 watts and 120 volts. Wmnl40e j;6eyuhat is the maximum value o0n m6j;uee y4lf 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 op c7vp1gq+v hi3 2g0uyherate at 120 voltsvy qh3u12g ih+p7c0 gv?

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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 resisx6fgg:-a:wwr0).dvg d)c+prt z*dtp tor that is dissipating 36 watts of pow6 :grg)fcw-.g*p r)0ddvt:xt p+ad zwer?

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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 wxwpps :y sd75 fj2,xb mrq*o19att.” In n xb:dsps* 5r7fmyp1x29wqjo,ormal 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 f9r2fvlrh,dc)gr i :gkaix2 g 8;c6y 1lollowing resistances could NOT be produced by a circuit containing only three identical 6Ω rx l)cih r 2fy;dvr1c8 g6i k:9rl,2gagesistors?

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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 jr49a-2 mexh vowo 8u oiw+u d1wy0w/tl/w.u ;resistors. Which of the following equivalent resistances CANNOT be prodw/l2 8awuw9.u v-wx o/wr;m4ty +odj 1uo0 heiuced 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 vay noae3.q6hbei +, k1hlues can be connected together in different configurations. If all three resistors are used in a circuit, how many different val.k1obneq,ea3yh i+ h 6ues 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 ab7xpibu/y2hqey8 8;z:kf) e x 07ga xj battery, 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 battery? Assume the internal resistance of the batterbb /gak)uj2hx pfx7yqx 8;eyi70ez8:y 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 kb y5+venx(n l.2u+lth(*(8lw dclmgin parallel, the equivalent resistance of the combination id. +wlnglb h5ym (+ll2eu 8 vxntc*(k(s 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 resistance of 1z j2 p2cg:w;kh2Ω when operating at 120 volts. What is the minimu ;2kcz:g2 hwjpm 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 resist3rob7+tcbg sy 4+p1cd or that is dissipating 36 wattsp+r143c gsbo+bd t7yc of 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 heat7/y0fif :ezsi er draws 13 amperes of current when connected to 120 volts. If the price/fiy s07:i zef 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 lighttpalrgf i74n3k)+qqk *9hva *9e jk*fbulb lit continuously foriq*fen q+4ar)h kf*j979pt v*3lk gak 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 qugc(vsy8e4y2 5rdd-we7( i ha power of 24.0 W associated with the bulb. Which one of the following choices best repr hdquregyi5cdsw(2yev-8( 7 4esents 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 skzmiy4q*l3 3s di *5lnix owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into lkq nimi4ys3l*d *3 5za 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 conn:bh h,f1: sv,spxqd/ nected to four resistors to form a simple circuit as shown thxhs q:s,,vf1/ :dnb po 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 resistors tcb1( gd 9n*q +ntmpj ,,axrg:ho form a simple circuit as shown to the rax1h c,j qng+tpd(9,nrb *:mgight.
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, g-qi/y3n8t1ky2 yrtn1hmh cea:hv+7 a switch and three resistors are connected as shown. With the switch open as showye hniqyn 1 a2/g3-+:hr yv7tht 8kc1mn 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 arez82t0itiobw ;u/ w; (z pr6uxb connected t2zw08w (i;ubzix /rpt;bu 6 oas shown. With the switch open 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, 6hcnq7 *.) e*wlfcrjvp ()hzkan ideal ammeter, a switch and three resistors are connected as shown. W e6c7 hkzcfn v(lpw*)j)hr.q*ith 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 shown to the 7mq exb:p/ nfn: ;2-bo 5hofor+ujkx(.4 xebh right, what is the equivalent resistance? Assume that all wires are ideal, the battery h;eb e :. mhx f24nnoo5hu(ok7x-b/f+: rbjpxqas 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 right with resf)bai(1 h.mygd kp5z) mzdq-1 istaia hkbz p1qym1.f)- m)dg(zd5nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 convdie qn.m /-f3(n+at gnected in a combination series and parallel circuit to a voltage source. qg/ m(anntf di3-+ve .
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 resistors conszy0 9:vcw rq gp3;okc; g+99lxlj w,rnected in a combination series and parallel circuit to a voltage soujw;l93gr9okw, rxv 0 9:gszlccy;qp+rce.
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 identical. W)e zn a2fyd; dxelw0xf78oo/d:c/ :jo2txv8u hich bulb will be the b; neoovxa) oxy7 d :dlftc22x0zj8f8wue:// drightest?


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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 rei6m*(2/ob,nr sf gw sbsistors are connected as shown. With the switch open as shown in the diagos/w*r(bmsb gf6 ,in2ram 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, an ideal ammeter, agfyqok fw a,2: -pv66g switch and three resistors are connecteda,2v f pgfo6qk-6g w:y as shown. With the switch open 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 ammete umv rv1tq8 b.8/lcmt-r, a switch and three resistors are connected as shown. With vmcubm8. trq t-1/v l8the 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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