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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 3n bs gdb. ql29,dteg4;w fjh;metal resistor connected to the battery. Which one of the following choices best descr4,d;h. nsw;9fteg3jlbdb 2gq ibes 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 are connected in parallel, the_;ds--ef+ta/yreucn7 ________each resistor is the same. r;-nyefu s-cd7 t/e+a

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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 filamg6m +,dx*4p yi pbg/2dy0i lvuent wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This hbgp pduv6i24+m lx,y di0y* g/appens 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 hoskv6,en xj gz9/ax jdg2q fs)ck3j 18(usehold lights are being replaced with LEDs. LED is the acronym for which one of thjd 8/32kgx)s6jgse(f1x az, c9vq kjn e 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 cross0)u q6bc 4td wcena.*t-sectional area A. It qnub)d4ca*e 0ctt w6 .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 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. Wire II has twicex -xf8 bite;s, the diameteitx8-,sbef x;r 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 theg j/hiph-e1u0 diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have ihje -h/1p 0gua 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/ kful 2) ,y0uskqvo5e 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 of this yks /qk2l u,fuo0)ve 5process?

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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. He deve1z3h hx2;ab cides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given voltaz2veh3; h bxa1ge?


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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 resistorsm* c .a9 pc+q.wf8wterz.gq8t are made of the same material. The length and radius of each g.9z tc*r a+wf.wce.88qqpmt 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 tn:7rpt6 :3dd/1vc bnrbb az7p he following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor. This set of threer7 6:b3ppv:tdcdnna7 / rz1bb 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 diagpfzhml.:zfap (4e o 28gzv*1uram has internal resistance 10.0 kW and the ammeter has internal resis 2ua8m:zp( 4leh*fg.pzo zfv1tance 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 1+k;b7xb8wkf gkhk (h6:nmamto the right. The three bulbs 1, 2, and 3 - represen:mkgkh b(8xkw6a;mhkf1n+7 bted 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 cis y t);i;+/sd1bzkkl7wf kqi 8rcuit at the right. If the current in all three resistors is equal, whicz; qkysib87sfiw)/1dk+kt ;lh 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 rigtu7ua)ybd;l- xpab )r55 z+mrht represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cellsuyl p)7b5t;mazd)-xr+ uba5 r. 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 follon776f4gnio6rvwt8ut k ao+)qm g+*b y wing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistances? mqoabitv o )4w rnku+*t+766g87f y ng


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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 batteryw y4wpyea9z+qs*4 1 pv0qd v1k. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in paralv9v+ apykzqw d*q4p01ewsy14 lel 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 pass through the identifie/w gg *r7bh3vn0 qti4 u)(pbfid resistor in 5 second0i4 i( )wbv7tgph*nf3g /qubrs 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 resb4 5vcj4m )a, uxz,ziwistors in the following simple circuit have the same resistance, which would dissipate the greatesbu 4z),vm4j xw5z,aic t 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 dit 6w;.ch:ek2iplm q(eagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supplyc k2 tiee(.q:mlp6hw; 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 brgy+w d+i; 0(4lxdgit attery. Suppose R1 carries a current of 2.0 A, R2dg+gd ir+4;l0 xyt(wi 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 connsxn h+e5dl3ex7. 3inrected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Whals+ ir3 nn37e.e dhxx5t 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 voljd dz- d6wbr.2 z/z1ccts. What is the maximum value of th.bj6zwdz-r/ z2 c1dcde 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 s2ol;q zu/y5r1zy, ae 2cogs.a 60 watt lightbulb designed to operate at 120 volt ocs.s/qyz25zg oua ley1,2;r s?

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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 3oe4qi* xf.bnjwoj,c :t rd n ez*-h:6ohm resistor that is dissipating 36 watts 4 *.:enjzicxo,ntbde fjw 6r q-*h o3:of power?

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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 1;xxuel-y kv8- *gifk to press clothes is marked "120 volt, 600 watt.” In normal use, the cuu -levyf 8k1i*g xx;k-rrent 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 produce5o/g qw /ak8krd by a circuit containing only three identawr/8/5kqo k gical 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 ;;+c7j u dcdpm1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resistor;jm dcp;7 duc+s?

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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 together in differfsbjj * 77oroq; k)5cfent configurations. If all three resistors are used in a circuit, how many different valu7 jjfsqk *)ocobf 57r;es 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 tmtusp*76nbg /-as;ibd0* ezurt 3 1oresistor 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 connect3ztm o t*t s0ru1 au*benbpd-si7 ;g/6ed 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, are connected ikqutjk aj9f53k 633y qn parallel, the equj3q6kku 3q a3j5 fty9kivalent resistance of the 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 te2q bg6v 5dla+hat it has a resistance of 12Ω when operating at 120 volteqbd gv2a5 l6+s. 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 ohmh6(jp )kom 6paxvsb7; resistor that is dissipating 36 watts of hs )x7job(; v6pk6map 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 heater draws 13 amperes of current s(4vo5l wfqz w0f,omy+xh(4hwhen connected to 120 volts. If the price of w(lh44o+ swmfoyf0 x,zvh (5qelectricity 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 l l,l) 7em-r:mxaybw/xightbulb lit continuously for 1 yx-a)xl/,we:l7mym r bear 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 2+t*dd lu7. ryz4.0 W associated with the bulb. Which one of the +z. lt d*yud7rfollowing 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 wattswh0fvodnh th7k ;p 094 in a 120 V circuit. If all computers are plugged into a single circh79o0htw; p0fhd vn4k uit 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 resistors to form a simple circuit i wg b(w0)pnw w5mzp)*as shown to the right. z)w*5g)pb 0nwwm(piw
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:k-5h,e iuc mknected to four resistors to form a simple circuit as shown toeu5:,ihkck- m 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 resistors are c9fjti+vg (w sp ,7z:1kpr ods;onnected as shown. With the swit,;9zvgrspjo ds wik7+(t 1pf:ch 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 swit(bc ,slgxnq.5ch and three resistors are connected sx(qg.5nbc, l 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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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 resisto 6sz + a7d y rqh(ovbgld++qg+qumd;6; .9uncdrs are connected as shown. With the switch open as shown +qv dh+rc;ma+sd g66.dz uq ; 7ng9doyulb(q+ 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 shof1l 1uyr wjj384n e4b+rwys.nwn to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has1w4bn3yenu8. sj ryw+fr jl14 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 resista 28,ucww(vqx ikq4 aqxw8 42ard3ls.mnce of the circuit shown to the right with resistancesaw8 i 2,mv 4qu2clsdxqk wx.(r3a w4q8 $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fiverqsaqei9j1n3 7 gd7 4z identical resistors connected in a combination series and parallel circuit ton rsgqja3 q1z4de79i7 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 identical resistors connected inmwb)dbb; / xf/ a combination series and parallel circuit to a vo/bx/dbbf) m w;ltage 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 dihujb/0ajzi(l-8lukbf d6 , ks r3*rw3agram, all of the bulbs are identical. Which bulb will be the bz (js3bd ak3, rh/wli*f -rub 8kj06ulrightest?


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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 switj,o zymh-(v 2tch and three resistors are connected as shown. With zvyh2 jo t(m,-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 scmgfi m8 . tlph.b956hg6ii+connected as shown. With the switch open as shot6lg m5i+ 96pf. 8gs icbmhhi.wn 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 andyfar 1/ u9;sft three resistors are connected as shown. With the switch open as shown in the diagraf 1y;9ut/srf am 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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