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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 existtcr3 hk roj-ig2.)u;ls in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor h;.k)ri lrj3got 2-ucand 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 resistorst( xf5ygg0r2fpxagm+8 12 tev are connected in parallel, the_________each resistor is th8xya fgvmte2x5t+gfg1 rp2( 0e 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 through the thin filament wire of a lightbulb causes themr11(hr(ej fv filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becauser(em v(rf1 1jh

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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 replaced6xc w ixz93;bu with LEDs. LED is the acronym for which one of the fz3;xw6xu9i bc ollowing 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 grapgdp ,+ ftin.x d8gvp49hite resistor has length L and cross-sectional area A. It is to be placed into a circui dvg+9,dgpp.nifx 4 8tt, 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. Wiit 0vz *byz2 05h:uukcre II has twice the diameter and twice the length of I. If I haz *2ibztk:5v0yc0 uu hs 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 materia z3r* e;oxnf(dl but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resd3 ; exnrz(fo*istance 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 radiusea ;+1dacn cm: r. This piece of material is then drawn so that it is a cylinder with new length 2L. Wd:m +c1a ea;cnhat 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 9vntee/h:xgx *5wl)a7u g1iw Edison wants to make a brighter light bulb. He decides to modify the filame u*te7vniw:5lx9gh1w xga)e /nt. How should the filament 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 same material. The lengtu5u a .yx0czeakk6+/yvza a .(h and radius yyx(6/ z5u aaa.a+uec0z kv.kof 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, 2ums t at-6skjop*,m9are connected to 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 is connected in series to a fourth resiukt -,o6asp2m 9*jmststor.” 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 inte))d5pu 8ltyed zgy)f 2rnal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA.ptydye))d z2f g8lu)5 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. e+7uf*3qzqc f The three bulbs 1, 2, and 3 - represented7+3q zf u*ecfq 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 thf ;+t -knlroo+ ec*m4xe right. If the current in all three resistors is equal, which of the following stt ox4;*lcn f++- mrkeoatements 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 com 3/-lr5xmlsfi l54l s;prfx6jposed of 5 identical light bulbs and 2 flashlight cells. Which bulb sr3 xri;plf /lxml5j 6 4s5l-f(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 true concerning the lofoos)0t:0 e simple circuit shown where resistors R1, R2 and R3 are have equaof oseo0l: 0)tl 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 batteryf+ q qf;dtqm:1. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY arfqdftm:q +1 q;e connected in parallel 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 identified resirto 0nx6p) mxjomx9t)4tz;b6stor in 5 seconds oo) t )op69bxm6rx0tnm x ;tjz4nce 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 resishq1e vz oillm: 122s1fr etsv7b4,lm8tors in the following simple circuit have the same resistance, which would dissipate the gremvm o:2h1i 7es z84qe2flblsvl1r,t1 atest 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 tpikvqr8 cneq(8bp 6wz 3pz-6 no2.b4rhe 6.0 Ω resistor is 1.0 A. What is thz64 rbkprz-vi nwc2qbe8o 8( pq6n3p. e 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, qhx2clh gtwbq+or7)+m- 8 u p-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 R3 dissipates 6.0 W of power. What isqcxm wruh g+lt-b+28h- pq)7o 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 congw357 x9 p,uvvp totm:nected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current i tp5m tv9:,xp o3gu7vwn 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 andno7y/8xbqtm 4 120 volts. What is the maximum value of the current under these cond/8ytnq7 xob4 mitions?

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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 designrfhcryup6 ra21kyb+ey uo5(b.0 in:,ed to operate at 120 voltsyr+:u6rheo1i2y0pu bb .cf ,nyr5(ka ?

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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 odu.w1 kb: vl:kqce:i .hm resistor that is dissipating 36 watts of poedq k:ic:v:.u k.1bwl wer?

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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( 4- +eze4,kwwmazjrd; g*xvz marked "120 volt, 600 watt.” In normal use, the curr- k4m wz4j;rx aze+,dgvwz(e*ent 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 could8.3gjlc pg ),qnqnu ;rp;9 ypr NOT be produced by a circuit containin qungyj,l;nprcr g3 9p 8.q)p;g 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 1.0 Ω resistowle:rw.; uh: lrs. Which of the following equivalent resistan: .rluw hwle;:ces 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 d 4mmhow9-3; v4* edt-gestotuhiqh- /ifferent values can be connected together in different configurations. If all three resistors are used in a circuit, h- gt;mvotdmt iw h*o/4sh- hee4q-93uow 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 resistor is w+2tw6-q )ldzq ifei. connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identicalil).+6 wzqi2e-t wdf q resistors are connected 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 connechwvju; 9)4yuc5mf ; qsted in parallel, the equivalent resistance of the combination is 5Ω . Which of the followincfju wvh 5 ;muq4s9)y;g 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 ofq(zg +t zx0rp2 12Ω when operating at 120 volts. What is the minimum amount of time that i +zgxzt(r pq20t 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 resistor that is di 4guy8ght b ,9r0s9v5/bztf8alm6sb vssipating 36 watts of powgvf/vmug6b sh580l a84r, bzsybtt 99er?

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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 to 120c qm7m nw9 gxqty+0l8( volts. If the price of t(+0 mqcglxy7mqn 89welectricity 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 litjhpnnjpu(m:e dvoz6yk 5-19 / continuously for 1 year at a pnkovm(z u9/5hj:d61yep-n j 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 ko9v aq4svk+84 g3.u79e eonr3vyfin power of 24.0 W associated with the bulb. Which one of the followo4i+ 3ekun van 8v9 oe.grsv3k7 fq4y9ing 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 xhzn4v i.5( aqg63zf xof six owns a computer rated at 500 watts in a 120 V circuit. If all computers arehg6zi .54vax 3x (zqfn 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 resistors to ,-r(hvmgtv6l form a simple circuit as shown to the riglr t(-v g6h,mvht.
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 i6a)sn+zziu h( x f:,ou4+ghoto four resistors to form a simple circuit as shown to the right. z4ugh iu:n,iz+o)ah f 6sx(o+
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 conn:71om2z / m4tz-uwho:xglawc ected as shown. With the switch open as shown in the di 4o71cgw wl:zzm2/am-u:xot h agram 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 5ylz3 y.gycu, three resistors are connected as shownly.,y3y czg u5. 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 battery5i6hvc5nkr k275thiu dzk.2y, an ideal ammeter, a switch and three resistors are connected as shown. With the switch opehik55r26 n2d5zckv u kht iy.7n 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 right, what is the equivalent resistance?s.+0nsj7, exl d c9hpu Assume that all wu x.97lsj+ced nsp0,hires 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 right with resk, in5bvc /i*)du 3qmkiskc iiqd3vm* k),5b/un tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fiver o6/xbpxu s-uhf6*q : identical resistors connected in a combinatio b-o*u6f6pr/sqxh u:x n series and 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 five identical resisba3 ;h3 jlyk6ojm jiu 537op1gtors connected in a combination series and parallel circmbilj 6;u jp 3yao 531ojkhg37uit 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)p*vf*yi4xuv4h f 8 bf, all of the bulbs are identical. Which bulb will be b**4v ufyvhp8x)f fi 4the 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 ammeter, a switch and three resistor2 5p *zz:guuxw hz/+dws are connected as shown. With the switch open as shown in the diagram the a/ xzz:pw2wg hd5+u* zummeter 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;vej 9i5lh l:a are connected as shown. With the switch open as shown in the diagram the ammeter reads5;lal 9jh: evi 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 three resistors are obq(2 r4730fk ucaikwconnected as shown. With the switch open as shown in the diagram the ammeter reads r3b owkac 0qfik247(u 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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