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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 curb2z-olnz5p . )+go,x,mz0 jy z1pnptzrent exists in the metal resistor connected to the battery. Which one of the following choicesj5 ,tzb) ozm+pxpz-. nnyp01gz2,lo z 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 resistorsx;tl fpa(35jp are connected in parallel, the_________each resistor is the sa 3pftp(;5xlaj me.

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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 cdo9 bpeusic 8 dxq3t8anpng 7*1no63 9dxek 72auses the filament to become white hot, while the gd8oxn b91c9sktoi3 apexq*67u 7 3p8ednd 2nlarger 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 lig) usr: qffw)x6awi qy9qa-28r hts are being replaced with LEDs. LED is the acronym i )xrqw 6qqfsyu-a28ra):w9 ffor 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 resistor has length L and cross (2p)rrsj cb4ribl9r *-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 is the ratio of the new resistivity to the old resistivity of the cylind ri rs*rb r)bj(c24lp9rical 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 gmm: 1j7szzh-same material. Wire II has twice the diameter and twice the length of I. If Ijs-z1m:g m z7h 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 thesucrw,in tjb2z722;(t lqv6 e diameter and half the length of wire X. If wire X has a resistance of R t2(, s;lbi2z2w67njctvq t eurhen 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 a -x1 0kxqk 2om8gi4fohas length L and radius r. This piece of material is t4x8 k 0m1ikxafo2gq -ohen drawn so that it is a cylinder with 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 2h1e- vw snnb7yib+p9to make a brighter light bulb. He decides to modify the filament. How should the filament of7h -p n1yneibsvb+2 w9 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 resistmcp(.rqst+ s4p,y6eq ors are made of the same material. The length and radius of each resistor is6q+ypm4tersq. pc( s, :
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, eacoys9noeyc ex24i; 10j.ood c 8h of resistance R, are connected to a battery in the following way: “Two resistors are connected in ser28194xocojcydosen0 ;y o . eiies. 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 th9hrw51zit1 y c zp sk8/6np5tje accompanying circuit diagram has internal resistance 1kc5whi pt6 s/tz 851rp9j1yz n0.0 kW and the ammeter has 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. qlul/ro 8 k1c7The three bulbs 1, 2, and 3 - represented as resistors in t o7/q l1krul8che 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 ciu -.lewvkr qy7e,w0. crcuit at the right. If the current in all three resistors is equal, w7u. eecwlqk,v wry0 .-hich 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 rig ;7swt8*f otbjht represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight f8 *sto bt;wj7cells. 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 true concerning the simple circulf +td zm8jc 0lz74qt2it shol fm zqj+42t8cl7tz0dwn where 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 battery. Bulb Xxrogu x)5s; *a is brighter than bulb Y. Assume all circuit elements are ideal. a)g5osx;u* xr If bulbs X andY are 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 waql -t7)-jmn through the identified resistor in 5 l- q7 t)j-nwmaseconds 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 resiste: rse-x;nd9bv *nha i26dyt*ors in the following simple circuit have the same resistance, which would dissipate the greatest power? n-neb*9i 2t;xrd*6dhv :a esy


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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 throughfia*, y vat3pa+(foug0g e6h 9 the 6.0 Ω resistor is 1.0 A. What is the power supply voltaoipayhvaf,3t g g+*6e0( f a9uge 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 con0jq8l suxt aj gpd78/3nected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resdg 78qj30utl /a8jxp sistance 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 differeneyj.1.l d7m zkt resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2yz kmjd1l e..7V across 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 ratqbg 1 ld) 14lwqzz09d/2k p);cagp kyyed 1200 watts and 120 volts. What is the maximum value of the current under the9blq ykz/y;wdz 14d)q0cgkg1p)l 2p ase 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 desa ;blrh8o5oc(3c 1hhq1d pif7igned to operate at 120 voltsr8od7a(qcc15 iph1lh f bh3 ;o?

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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 resistor that is dissi8 q.fv9v8n ncqm j.a.rpating 36 wacnrvv.9 fna q8jq..m8 tts 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 to press clothes is marked "1ks n iai5/5+jw20 volt, 600 watt.” In normal use, t+iaki5/ws n5 jhe 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 followihry9fh1uf c+8 xkcvm . q(2cg:ng resistances could NOT be produced by a circuit containing only three idx q f8v2gcry.cfu9 m+ hhk:c1(entical 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 Ωt:;0b*(irn bzrgpm u4 resistors. Which of the following equivalent resistances CANNOT be produc(br rmp4*ut; :bz gi0ned 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 together .9(a-e dj zhbd-d7jhz in different configur z7 jj9adh-bddz(h .-eations. If 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 resistor is connected to a battery, a total po og8pyh:bpa 9up5o-0utd3t / gpmy x6-wer P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected int g:6ypt3/p 8pbpaydu 05 um 9ogo-x-h 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 andpq :x q:f.n,+xic2avu R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which oin.p: qu +vcq,f:xx2 af 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 h. r kkzfp tfd(ir:8n6y0 b;bp.as a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time tha0r(f;:6rpdpf i8 z.btny.k bkt 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 o,gqikgjeo ) 8*hm resistor that is dissipating 36 watts of pow)igqjoe *g,k8 er?

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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 w)pq gfy do(5 1:vgl6idhen connected to 120 volts. Ifo:d 1ig dvygl 5p)(6qf the price 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 lightbukgc5ozy3s u)bq-dt6iv 4 n2(flb lit continuouob f6g-(yz 5citv2kdq)u s n43sly for 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 lighttq-51 dnvp .5(amwbwr bulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the livq ba(pmr.wn5dt15w -ghtbulb?

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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 coju+ca jox+*j, mputer rated at 500 watts in a 120 V circuit. 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 operatinjc +,xj oaju+*g 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 resisto7b n5ps74p1kb+kasqi rs to form a simple circuit as shown to the k4+pqspi5177b kanbs 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 tomwo,nxd19)k b vmqh)+/ ; mlto four resistors to form a simple circuit as shown to tnd)m+k mmvohoq,/;lxt1b )w9 he 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 resis2plv--c rv. i(nubvv* tors are connected as shown. With the switch open as shown in the diagram thnrv.2lc vib pv -v(*-ue 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 s gfoe 1)8p eaj35ckqj/witch and three resistors are connected as shown. )e/pjkj38eq fgo ac15 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 switbu).ruh1 (xf tch and three resistors are connected as shown. With the switch open as shown in the diagram the amme bf)tr.(u1uh xter 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 res9s h2k tq5/lrtlmp h;an1h 7k9istance? Assume that all wires are ideal, the battery has no internal rnt /l;m5 a9 2hkrhqp97 kth1slesistance, 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 ry*f9z+ vdo v2k kr*4(-olljwsesi9ovj2r *k4kw+ z*-ldoy(s lfv stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 conn2g.qjma6p ih(ected in a combination seria6 ij 2(p.gqmhes 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 resistors e),yfcajy7/n4(j1 -m o xp gprg/ls-oconnected in a combination series and parallel circre yo/nf cylx-p/ms,j -)4g 1(joap7g uit 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 arelz.,o ,ee/od,7rgcho identical. Which bulb widoogle,.,7 h,/zr oce ll be the 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 resistors are ldy m7nv (58 f(m wzqd+u3s 1yf)u/i5ma4tvyj connected as shown. With thew7(8dym(tm+)m/j5iy a3ns f u1lz5ufv yd4vq 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,.i7(ggc)s8nq k9az1o crab(poie5; g an ideal ammeter, a switch and three resistors are connected as shown. With the (i7igeraa)k g1;gco .scb 5 q9(pno z8switch 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 ammeter, a switch and three res yzsg k+btq0 /a2ia-l3istors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 yb2ag3 -s/qt +lz0aikamperes.
When the switch is closed, what would be the current in the circuit?


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