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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 meen5.q m/(x(zttbyb 7jtal resistor connected to the battery. tjb 7x(z/t b.mqy(5en 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 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 arepaz 6ra2s)0qx connected in parallel, the_________each resistor is the same.0a6 z rq2)sapx

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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 wirh eerd7zf(: b/0wusd4x0a m0ke of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much courk0f e 7ha:4s0m0wxdez(d /boler. 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. LEyd*fvyfe ;-qezf0/4k D is the acronym for which one of the folld vq4fyf-*e y/k ezf0;owing 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 graphite5 *w8:owff 5cplp0m- d+mtg kb resistor has length L and cross-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 ifpwd -w k8+*5b fo:tlmg50c mps 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. Wik ,ftvi4wuu.8h s mq27re II has twice the diameter and twice the length of I. If I has re h vuf8 mkw2,it7uq4s.sistance 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 matsl*,ffmn5-jcdt6( kg 2 fvp:oerial but has twice the diameter and half the2j6 :s gn ffv,*lfoptcdk-5m ( length 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 laxwoz:*/uhtnkiw un 810f k,i50z* vradius r. This piece of material is then drawn so that it is a cylinder w 5*uxv0,woz8nlh/kw ink :1tzi fau*0 ith new length 2L. What happens to the resistance 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 /ckoa :)23cur 3g+s4 kd0flmpuvgl+ vto make a brighter light bulb. He decides to modify the filament. How should the filament of a lightv3+rkk +m3gpd uvl4 ao)ugcsf/:2l c0 bulb 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 same material. Thze4/ddnxfg tye7l)o9 m j5 5niqdl56e;1f 3 jde length and radius d jnd)q7odft1 fie5e6;5/nm9g3 xz5 jld 4ly eof 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 to4a;;znc 4 1e ev/7.bs fvomydpb.6qg p 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 three resistors i.f ne.bb;c7v ;1ag 6 ozqpey4d m4/psvs 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 has internal r, qm 6z5vtl5. )5ennsbdz,psmesistance 10.0 kW and the ammeter haz6zn ,d5b)ms e.pn qlmst55v,s internal resistance 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 shown to the right. The three bume5smp5ma7 )n hn/ 8jplbs 1, 2, and 3 - represented as resistorsp5hj5) as m8mmn /pen7 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 ,feyz uq. vv554dnp,9d dhd1ccircuit at the right. If the current in all thre4dezd,,h5n5 q 1 pufv9yvcdd.e 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 simple electric cirnx:8ly h.g )k - kf6sc kl0zp,t7.6oqv-emxoxcuit composed of 5 identical light bulbs and 2 flashlight cells. Whiptkme sn6fvz, cl .xl7-0 x).-yhg oxq 8:o6kkch 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 folm/lds (lx7e rv w u;am*l;cz.0lowing statements is NOT true concerning the simple circuit shown wher 0; *lc7zlesmluwx mv(d;. r/ae 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 batteryvnt1 jbjg2m6 6. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel wigm2jv 1 b6njt6th 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 pass through the identi t6;jp,r)oqgi 3e0eunfied resistor in 5 seconds once qe pgo,6)eir3t0ju;n 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 vjbt6+m5 +ei 81mxl0 l*quiedthe following simple circuit have the same resistance, which would dissipate the greatej1+68um eie*tbxm ql0 +il5v dst 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.p7 gcl.i; g wcu*4q box5+1.z 9efoeku0 Ω resistor is 1.0 A. What is the power supp.i19xcu e;foc4+le g5 gk7*q wb.pozuly 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 1ircmd2.nl 4n are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.12icdrnm.n4l 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 pa6 /paq;ztawx 3y7sif 1.i ijm8rallel to a battery. Suppose R1 has 2V p6a z i i3i8jqwtxsm;/.1f7a yacross 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 hubypo6y732 atts and 120 volts. What is the maximum valy6oyu7b2p f h3ue of 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 resist0 )/- *imai,st* mdz4wicl frcance of a 60 watt lightbulb designed to operate at 120 voltsm* )-fwim,ia dzc4i s0*rtl/c?

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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 resistzh .6ev(se.fxauh(bzo/- o:z or that is dissipating 36 watts of powerohxho z -a(b:.zuz.esv/f e6(?

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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 prz:ign*o6he e-bhg8z4(kn x6u ess clothes is marked "120 volt, 600 watt.” Ine en*zb-khi8g(u6g:4oxh6nz normal 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 could1c6 s5vgr jq0s NOT be produced by a circuit containic6s 01qvrsg5jng only three identical 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.l xut.g 8j0(y jrmi+k*0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all thr m0 rjj8.xlui+tkyg*(ee 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 *mnide /v yltj/2wa3)together in different configurations. Ifit/2d ew *yl)am/jnv3 all three resistors are used 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 resistorpqq l,1ykv uv+v2ih2u * kufpq.04 c3f4vw3xq 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 connected in series using the same battery? Assume the internal resistance of the bat+h21 qqfc 3uy v3vv4u.q lkq v,p*pfiu4w02xktery 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 resi(vytysjd gq;.w3m(,gs :sch, stors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination ,:q3vj s;.gmds g(, s(ty ychwis 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 12Ω wher ,e,z u/e*dhrpp;gn-n operating at 120 volts. What is the minimum amount of time that it would take t,pg h/n*reu -;,drpezo 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 resist-9r;wm ia6 x6zvuhp /for that is dissipating 36 watts of powm -f9irv66h u/;aw pzxer?

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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 connected t/s rkwxc**m) 0ezx1t p9to;ih o 120 volts. If the price oxxt;0rk zp *1hem9i*/) o swctf 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 contin xb; d x:aoi1yw n1(twl91+bgzuously o n;g dy1+: i1bt aw1wxb(xzl9for 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 res eyg c20n6s5rgults in a power of 24.0 W associated with the bulb. Which one of the following choic0gg 2rn5sey6 ces 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 al5ttx*a g6+5bbdkmv0v,+bc u family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a sing cdxb0kl*,5 b+vgtba5 6 umt+vle 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 rygbym cq3 i,6 x(ne7y9esistors to form a simple circuit a9,y7i6b e3yqxnmg(cy s shown 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 con, p xl:ink6t0n 3gqx.ynected to four resistors to form a simple circuit as shown to the rixlxn6:g0npk, q.i 3tyght.
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(ecm9grp9s *- aqg h3mkl.pq 1 ideal ammeter, a switch and three resistors are connected as shown. With the sws1pmp lm aq93 eg hck.rg(q-*9itch 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 ih6uxf6m,8n d v: d7 l3j,)oztxzhs. xjdeal ammeter, a switch and three resistors are connected as shown. With the switch open as sv.,dlhs)x7nx t3ouzd 8zj hx66 :fm, jhown 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, an ideal ammeter, a switch and three resi3h/k-u f w0c xs7f+okmstors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes3xskhm+o0wffu -c7 k/.
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, gs;x07, y,c4kkh8m 0tgv c kiqwhat is the equivalent resistance? ,k4 y 0;8htvxc ic7gk mgsk,0qAssume that 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 (8zqyetdprolt7p 2 nr 3 z v,v,ww-.u;the circuit shown to the right with resistances vr. w(7zv, t2n ;zdyp8p,u qrw3l- eot$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connec2 q(f ljwmt n(psi3q3)vducncrf 46/ 6ted in a combination series and parallel cp6ir f6d(l3ufc 34ns2q v)wm t jqc(/nircuit 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 shoi,54m1g wp p uw,vn8hyws five identical resistors connected in a combinatioiw,ug py,8hp5nv4 w1mn series 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 identical. W a1-*+lfnz j*vxhj c(bhich bulb will be thnca +f*vj1 zjb(*lh-xe 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 ammetc oao0 7bc.zk*er, a switch and three resistors are connected as sh *7aok0 occ.zbown. 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, an ideal ammeter, a switch and three resistors are cond d 1p zvfzj(i./ejke8n,yn-0 nected as shown. With the swie 0kfyjp-d (v1e /z,d.j 8nzintch 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, anbot28i*hf y;ps5en (0 o6ycnw ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown 65inpyfbwoon tys8ec( ;h 02 *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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