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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 curre x4k4uaz yrea;7om ,c(nt exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of e zare; yu,k4c7(oma4xlectron 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,n )hxyxo/l 4*i,xh 5: mlyekn2 the_________each resistor is y2:,m4 yl xon)ein/lhh5*x kxthe 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 the fi ;:wl4gyrjea kk-k6 zg fd(5.clament to become .lkkkg;zc6ja 4- fw (5ygder:white hot, 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 lightu9t06vr mm/ln8-ogeus k) oia., ohv/ s are being replaced with LEDs. LED is the acronym for which one of the following choices?. 9u-lov,r eiuvok )h8s 60mg an/ot/m

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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-ycgipp h.a7 3)sectional area A. It is to be placed into a circ3g 7p ipcyha.)uit, 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*ptkg gad6(zz4fim6ac 8l )t* made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II ft6 )k86g m4 lgztp(a*zcia* dhas 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 th hgz9 t741rk2wseor6rj;m: rt e same material but has twice the diameter and half the length of wire X. If wire Xsr;kr4ozrh9r1eg2 6wm t j7:t 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 radius r. This piece of materiaw6oorwof(1 un*)0a dp* d/xjzl is t(r1 6xj* nuzd *0oadf)op o/wwhen 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 9 tfb4fodb dlptmc)rreu9 ;v;5 )da,; wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in 4b ta;r9rdv lp;e)d,o5fmf)t ;dcub9 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 / . gwof8tug6z* u/mqcoa):2pc;bsp dsame material. The length and radius of each resioq; :pubtg ) 6m/.udcgc8f*p wzsa2/ ostor 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 tyro:jc4*sxlyh: t,6co a battery in the following way: “Two resistors are connected in series. This combination *hx4sl yoj,r:c: y6 ctof 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 the accomp gs : xg;x/,fbuhlei5ciya4:rc 4h)n1anying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mu)be x1gl4h/ ,i:sanc:fix h4ryc; 5gA. 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 rightnuuo1 xc+ ka 1ecyv+j,vo(,emqzw 3:*. The three bulbs 1, 2, and 3q1wc,+1m: evyo+kx(ozuuenv*cj,a 3 - represented 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 n;wxyw spx99ty;/ll i aa ;6y+electrical circuit at the right. If the current in all three resistors is equal, whin al +litwp9x9awy;s/;yxy;6 ch 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 circnuf0(odw; e (yh 1skjat8al x;.88pe uuit composed of 5 identical light bulbs(un;8wy a ef( dkha0 u 8leo8p;st1j.x and 2 flashlight cells. 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 tr)op148 hvbl m2hehjj1ue concerning the simple circuit show h4vbhl)1 1e82mhjjpon 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 X 7oe zl66e l0rel* atju66xp4tis brighter than bulb Y. Assume all circuit eleme4ee066tr6j7 6*lz ulxl peaotnts 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 will pass through the i8qofs5t/s ujpc9 -9r/z mbn/ wdentified resistor in 5 seconds once t-ucqn59b // zr /fspots9jmw 8he 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 the following simple1v 0g1wpg3 i xibpqsn5ap d73+ circuit have the same resistance, which wbn1 spg1 q730ia5wx+d3vipg pould dissipate the 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, the current thro svhd5.n-h4 ge..oq khugh the 6.0 Ω resistor isqeg.5 hh-o d.n. s4hvk 1.0 A. What is the 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, and R3 are connected in series to om:;ad/1fru7,q ety7ekd6gj 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 is the voltagee/7 a;6kf d7uj1 :tdgreo yqm, 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 parallel to a bc 5q,tcq, gaus zur- 5qcvdm3 :6(ke,oattery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What urq5a,s -q km g, v:tuqo(cc,ec6z d53is 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 volts. What is the max o41/w a;ht4mvx 9,l y rguewy*er6 ar-;x6hogimum valux1 6au,/aweoemyr g*lghhx o9;tr4- 4;y w6 rve 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 resistance of a 60 watt ;1pjgi xo2lqcr,96wl6p2n nf lightbulb designed to operate at 120 volts?g9x2p iqlf 61pc nl62,;jowr n

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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 disbfp -3+w d(:lbes7 pbjsipating 36 watts of powe7wbj- 3+( splb:efbdpr?

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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 "120 volt, 600 watt.” If 0wtxp9d 9jp0dtmg- ;n no0-jpwt9g0; mt 9dxpdfrmal 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 resdi82vym wk xw:2ec*3u;i u :vm ra-(bfistances could NOT be produced by a circuit containing only three idenf8edi -2 umcambw3 2:(r* ui:;vvykxwtical 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 oencet):a0 2h sf the following equivalent resistances CANNOT be produced using all 2se0echa nt:)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 cv97t i 4ll+w3+tdsdgq onnected together in different configurations. If all three resistors 4+t7v9l3ddws t ilg+q 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 power P is d b8; kzr-fk7f2 kd8ssjissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the sakks82dfb zs rkf7; j8-me 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 in parzq h,wynx j+p0u g;687--iq( fubg oowfy5)lo allel, the equivalent resistance of the combination is 5Ω . Wyb-of o zh n 8ylw6jx5g,gp+fw)qu 0i(7 o-u;qhich 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 resis .u0 a5iufvzg5tance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take v g i5au.0u5zfto 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 tjyb +)svs3j.j,dd w m4 -t8ktxseb91yhat is dissipating 36 watts of pow 4wvxj dsjj.,syb-1my k3) ebds98+t ter?

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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 120 voo (c7 o.tyn*4:c zmo;9ekmh uqlts. If the price of electro*n; u.:74 o o9(tkq mhycmzceicity 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 continuobtdy (j8v, 5ift: rl;y-3z tuhusly for 1 ybl:(j d8fut5ity ryzv ;3,-htear 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 resulz bkljmpggy/o8;4 pg +guk1n 3+v2 1hqts in a power of 24.0 Wg2l/gkop1;g+z4 mk8nv+1guyq 3b hj p associated 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 family of six owns a computer rated at 500 wa sz s :l tx.1jxei1lt,ukx9d.(tts in a 120 V circuit. Ift,:ikesjsx u.zt xx(ll 191d. all computers are 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 t/m.jgt 2 9ykdbo form a simple circuit as mjt2 y9bk. dg/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 connected to four resistors tdym 1xs x26tk;o form a simple circuit as shown to the mskxtd2 yx61; 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 co*mjca *d( utsr/u;m*bnnected as shown*s/*( c m *utdbram;ju. 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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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 three resistors are cofus jvaq4d+.ly7a3l63yso i3 nnected as shown. With the switch open as shown in the +qs3jl3dlysu iaa7.6 y3o vf4diagram 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 ammete1v :k* ,(nxpnj ty2/ ,i:r ;r(hcibxht0wqfwur, a switch and three resistors are connected as shown. With the switch open a/ncx2,bj((: ip ur vyq x: ,0r1wt in;wk*hhfts 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,uh1xnz r z1l-0iv/r u. what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical rz1v.r ih l01rnuz-ux /esistance 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 shq 0/.cgwz j+hyown to the right with resistances0g /hz y.+qcjw $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 rehoplo3h8 (b6slqg5, 6g af oi)sistors connected in a combination serieo io,s(l85b ghhpq3a6go6lf )s 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 connected inextj5-:rk462g 8qz /cuygjv q a combination series and parallel circuitqj:5/- er6zq 2gcvjtuxy4g 8k 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 circuith;q3 fbv6e+ 5hy-x fyw diagram, all of the bulbs are identical. Which bulb will beyqw f-+bf5x6; e vyh3h 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 p3 cgf,k6qzw)m4rr6qthree resistors are connected as shown. With the switch open as shown in t4) p r6qfmzr wcgk,36qhe 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 switfb, 4d.kl8p kzch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads k 8 b.lzpf4,dk2.0 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 batte/3 dgx: sg1 .hgua1qd ,1/py3p su6*ce aqcwyhry, an ideal ammeter, a switch and three resistors are connected as shown. With the swc 6 dhq/gspgp :.*/,d13s1yyah1x3quwe uagc itch 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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