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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 h7yvg gbs(,m*:enxv5metal resistor connected to the battery. Which one of the following choices best d :ybs75*v ,mg x(ghvenescribes 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_________each re,ee+jp5rhi+ n1 zcic03c m.eh o *po4usistor ecc c i o4ro.zmhe*503n+,e ppi+juh1 is the 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 causfuqgz 41;8kei es the filament to become white hot;1qik4z 8eu gf, while the larger 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 lightcjzkta o5. p/b6dlx 9/tud9q4 s are being replaced with LEDs. LED is the acronym k9.q/a jb9 otc d6 45pdx/ltzufor 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 0l7 yt6 e8hz7iq okwn(m8oaj ,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 is the ratio of the new resistivity to the old resistivity of tq8zk,hmtn8y 7 li(owa6oj 70ehe 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 ma(2xk2fwc kmfr*nt9cl* t 4lf,terial. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has 2*(f fct rcltl2x,*w9kk4fmn 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 bk)+)uhd(i thr-ji,jdiameter and half the length of wire X. If wire X has a resistance of R theii, + tb j-hjhu()r)dkn 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 radius r. This piece 1fqi ufvqg8n kiuy1o7e b)t04,*syx 4of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of7 iuq4x 1 4t*f ,)q1kb8uivsg0 eynoyf 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 want8;gsmvrl ai9iac4o./ s 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 lightbulb produce mormc;8a 9go4la/ris i v.e 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 u2w3 em ;c m9orzzk77sresistors are made of the same material. The length and radius of eaco;77wc3m zmueks 9zr2h 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,ku2m9s (bk q8p each of resistance R, are 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 smup kq98kb2( 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 i ,zujh4 k*4+xvxe.cgi nternal resistance 10.0 kW and the ammeter has intjx +u44v kg.zh*ie,cx ernal 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 17d;(la6o5srtorww oz ; oy :tbulbs 1, 2, and 3 - represented as resistors in the t6ad; 5 (;r: owt7 rs1oozwylodiagram
- 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 curre0sd582z(l3oa8kggsqzws a l222 dvn d nt in all t88ods glz2s2n dzad2 5 2w3vqg0ls( akhree 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 reprb-al q tw,ynjkx4/x2 z;;(y ujesents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells nk-; l;u/(b 2,jxxy4 wyaqtjz. 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 concerninb qg,4jt,ip6t1); q krunn./ttlze*r g the simple circuit shown where resistors R1, R2 and R3 are htbli,.tn1pj);zn,k/gq6 4u e *ttrqrave 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 co;/xeo6 bvon3jnnected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuitn;e3o/jov bx6 elements are ideal. 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 w3alw/smo-a5 f ill pass through the identified resistor in 5 seconds once the circuit was-wom/l s5 aa3f 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 residwr/6s0,,z x mmz;s, 6geh; 4o kuuwifstors in the following simple circuit have the same resistance, which would dissipate th g/m;w ;uisd4x ok6ezswh ,0f6mr,z,ue 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, thea-1kw)h )iz+,vxdcn r current through the 6.0 Ω resistor is 1.0 A. What is the power k,) zvhw-+)dri1ax c nsupply 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 battery. Su4whhq 5: s;:kgp fsms(ppos wsss(q pg:hh;fm:5k4 e R1 carries a current of 2.0 A, R2 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 co8 io * vc)nyhff4n.n.tnnected in parallel to a battery. Suppose i *8fh)tcn. yo 4.nnvfR1 has 2V 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 rated 1200 watts and 120i8 l-qibkay ap8p3l- . volts. What is the maximum value of the current under pai.-8kba8l-3i p lqy 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 ti rv69wb-1/lg9soagdxhjm 0,o operate at 120 volts?-i9/9 s wgl1mo 0j x,rgvdbah6

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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 z1 nn wsr0.a1xflows through a 4 ohm resistor that is dissipating 36 watts of .n11ws0 r znaxpower?

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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 clothp.i95 ,f k m:hvvuwow(ag* uq/es is marked "120 volt, 600 watt.” In v.*ogw:9 v u kw/mf(ai u5,pqhnormal 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 coul 2-de+l5,(w08j 9mfnq6oy ipfi mtybld NOT be produced by a circuit containing only tmfd0q ipb, w8loml 2 ey+y5j- (69tnfihree 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 resistors. Which of the following equ rdg jcrcz((9el p-r;mosu5 9(ivalent resistances CANNOT be produced usingz -s glpr (rr(mec59cd9 (;oju 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 va(kzlj*w,+ ffzs0j7w hgaau9 /lues can be connected together in different configurations. If all thjsfl ag+fjh uk9,wwz(a0* z/ 7ree 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 batter (ke5 fgq9dltt-0v1 yhy, 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 t(0 5y9legtvht df kq-1he 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,cl2ss8/hrv,f4 gu gb i 30shq- having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following stat2h 4vf ls ssi-,cuh 83qgb/rg0ements 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 when operat ga8w6q nfa.vq1i6j uov- )x2ring at 120 volts. What is the m 6x8 .qagrivn1fj2uq6av- w )oinimum 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 resistor that is d, a:xnexzp-d-r+s a3jissipating 36 watts of powz,3 exxs-d-apj:+a nrer?

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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 heat5flw z+bq)b rch+il ;6er draws 13 amperes of current when connected to 120 volts. If the price of electricity; wq6b)lrb+ +zifc5l h 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 tk*rttm6a2:ff+s9 ue/8e bpgkeep a 100W lightbulb lit continuously for 1 year at :m8ut*bf2t+6gtre/pf ask e9a 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 curre(*mbvd+qzp52 jal *ybnt of 4.00 A through a lightbulb results in a power of 24.0 W assocj p2a5db+bm*y(lv* zqiated with the bulb. Which one of the following 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*rizn7-2rwmox 3n+qt family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, 32q 7+*oxrzrtninw m-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 circu*itj h4an-: zm4 td.oszro5ff82-sufotdu ; ;it as shown to the rig2ru t;s:t*f4 d8osz t.oum5h4jz afo- n-fi;dht.
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 to form a simple circuit *at i-up; kx5 db k(xfm9+w:ulas shown to tkf5xxi :pbaw*d-u +( u9lmk;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 lq kc7* b jhmowb)(t4;and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads *oc )t4bb7j l hm(k;qw2.0 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 anx:qa8rfso )xg nhwxeb 12+1fm0d-r 6gd three resistors are connected as shown. With the switch open as shown in the diaa8gdmgh e b+)rof2nf-xw 161rx :xq 0sgram 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 ide/*9tab fe q+nval ammeter, a switch and three resistors are connected as shown. With the switfn 9e+ tbv*qa/ch 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 righth 5*9 o7//jdbs6yqa-tfqa ri bvqs76o, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all thfrhavqyisj*5 o769/ 7 sdq6b abtq-o/ree 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 z3fbzya i2ahhu 9q6/)q(aw* i of the circuit shown to the right with resist z3w (2uaa qiy9b*hi)qz/h6 faances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 js 6 sw le-89nzkt. 00mx2vyzdconnected in a combination series and parallel 8v sylszkt20d9 me-6.njwx0zcircuit 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 be,rhl ::jjk(milow shows five identical resistors connected in a combination series and parallel jjr,l :h(:mkicircuit 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+nq.hmq7 u nx1 identical. Which bulb will be the br7m +nu.qq 1hxnightest?


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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 7+ lxteduy/n:three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 :u/7 l+dnty examperes.
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 batteryi6or863um vrm, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. 8rm63m ruv6io
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 resi,quv-jzo z9j3wg. e. nstors are connecteqov .ngj9.je- wz u,z3d as shown. With 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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