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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 k7scv1r eyrf by8:4ug5s0n6g current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the directiog7befgs 4s: r15ku vn08cyyr6n 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_____t+j83r8 6hy h.vg4 qasfjvw 5pvz*c(g____each resistor is the same5(8 y qphv v 84gvj6tcjg.w+*f3szhr 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 thro*. 7h6qvq0r/:gacl j /bcjax wugh the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much coolqjqa 0/ wb.r xclv6g *:7caj/her. 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 lights are being replaced with LEDs. LEuuuv 7pfu4 )m;D is the acronym for which one of the folu)p; muvfu7u4 lowing 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 lengu(n5;n5 ro zcwth 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 the cylindrical 5;owunrcz5n ( 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 asu k jg3 e7y4hj 0vqn;l2hrr+7re made of the same material. Wire II has twice the diameter and twice the length of I. If +u7qj;l nyj7ehk3 4rrhs v20gI 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 the dr zm1j 5m0(w78ho;x pq(cdhzkiameter and half the length of wire X. If wire X has a resistance of R then wz;0 o5p(jhzcr(xmdq7k 1 m8hw ire 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 m))0r-u+ cyiq: zsscojaterial is then drawn so that it is a cqr- i: +)usc z0sjc)yoylinder 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 Thomaj:mcud qv6 vs5b f9,k:7) xqe,prx 7mcs Edison wants to make a brighter light bulb. He decides to modify the fila: bfxmk:u7m,crxjvse v9 p56qc)d,q7ment. 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 arlbzelshh:+z -( utt7wka (3/s e made of the same material. The length and radius of eachauz/ltb t-+:s(l73e(hh kszw 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 p(b a s29xoa1to. y*mhR, 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 a fourth resistor.” What is the equivalent resistance oamab2( *pxh.9 1tsoo yf 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 accompany3 mlxwvx a4hjw, 9.vx0q j)5bq2x dws3ing circuit diagram has internal resistance 10.0 kW and the ammeter haj9wxw4sx 3v5,0.xjb xvwqdhq ml 2a) 3s 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 ci8 1(uncok*/ vgygk uj*rcuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in t *vu*k(ou jgckyn81 g/he 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 the right. If thexh, bfx:4fz8gf:(onc current in all three resistors is equffhgfn z4b8x(:, o xc:al, 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 represents a simple electric circuit composed of tm8 cpg1 zoj;:kqq r0;5 identical light bulbs and 2 flashlight cells. Which bulb 8 q kc1oz;0j:gq;rmp t(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 Nhb tui ;v:u2+90+ uzrws-cksiOT true concerning the simple circuit shown where resistors R1, 9i ;+su chkuvz trbs02ui-w +: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 w2 f k hh4e:dna7e5e7eis brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to t7:7akhhw d5 e4e2efe nhe 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 coul*kdg;:*k 86tgo nv ooxoj15nfombs will pass through the identified resistor in 5 seconds once1ox 8:dko6not5;k jgv o*gfn* 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 resistors in the n(2qvrjt15ny .us a (cfollowing simple circuit have the same resistance, which would dissipac5a1v .y tu(nnsq(j2rte 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 cirvyv ccrut; :z: (-yq1ocuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supplv-ct z(o; yv1:qyu: rcy 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 c i(dld/occ 1(sua5w0ent /n i/onnected 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 is the voltage across R3(isi 1t5/nuwc/ea(c/o d0lnd?

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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 ie. j9t97lptca6; wdpwn parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What isw .jp96tweld;9c t a7p 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 rs l qm4lj u8(nv)q6gy3eh2cp0ated 1200 watts and 120 volts. What is the maximum value of the current under thespesq lu(82m v h0jg64y)l3ncqe 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 6clfucyv41f4 w ,w10pk0 watt lightbulb designed to operate at 120 voltpfkw1l4 4w,0cvy f 1ucs?

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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 currenya p r-a*hz8*pt flows through a 4 ohm resistor that is dissipating 36 watts of 8r*yhp*z aap-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 "120 v(s3;6 r8fmg2lc ednkfolt, 600 watt.” In normal use, the curr2 8egfdkcr;s6(3lmfn 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 could NOTd 6olnr,-*jhezn b +grg/dr9* be produced by a circuit containing only three identical 6Ω resistonrbg96+j*gn,dr /*r -o edlh zrs?

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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 6l8 xcu8eprg)huh)9q equivalent resistances CANNOTu8rhgx9e) lq86h)up c 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 /fyor 4fxv3.d of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be prodffrx 3 ./dyov4uced?

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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 dish *gqyd (td1pp5cl )u7sipated in the circuit. How much tota1 h*l dg(u7qcpyt p)d5l power is dissipated in a circuit if n identical 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 Ra( fw0x1 th:7i, rr,h.mbname 2, are connected in parallel, the equivalent resistance.,a f7m1i(tnh wrxre: ,h ma0b 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 that it has a resistance of 12Ω when skzw e*o qx1+6operating at 120 volts. What is the min*weq 1+z soxk6imum 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 resistornn ew q/ag:yc/ *7yv9l that is dissipating 36 wattnl/q*eyv ngw97: ayc/ s of 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 dr1z+n)t:.naag+i ) gel dj cj2znly77xaws 13 amperes of current when connected to 120 volts. If the price of elcnidz1a)+. 27ax:+ )lnj7elygnzjtgectricity 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 u/vpf2ou 8 /nxwould it cost to keep a 100W lightbulb lit continuousv funx2uo8/ p/ly 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 througu*z xnvzd6 ux64e,kx3h a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represu66 xev, zxd3*u4 kzxnents 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 ratew6q sto1r5x.f d at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 amp.tr1 65woxq fsere 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 fou;u5ij hrs/lz( r resistors to form a simple circuit a(hu sz/lr5j; is 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 to form a simple circ su-dglfn*3t; e9zt:auit as shown to thea-u t 3gfszt;lne*:9d 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 swit rziyc9r8,z4 sx:ue ;och and three resistors are connected asr4 xr8yiosezz :cu, ;9 shown. 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 and0, :yd+xsym j+7jhzj n iu*z,o three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2,j+hx*:u ynjm0+y7s, dzzijo .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 idea/q2m9r g h2nev mra.m.l ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the dia/rme vmn..q9h2 gma r2gram 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 is2tk3x+. k icltif4k*mi45nb o the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three 3ot+ ftklik5ikcx.bi m 2*44nresistors 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 c0zac mypr.l//k4 y hofu5.9 pwircuit shown to the right with resi0yo / f/ 4.p9r.la5zhyum pwckstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected in a combin,w frlum (* hjafuy01(ation series and paralle*fm,al1u (u( f0wrjyh l 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 in av mm0e5p+djlpd6 v ,3m j*ite: combination sede6j30p:vij+p m mte,5*vlmdries and parallel circuit 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 e. 1rmo 4kueorsgc8*5( bs:kwidentical. Which bulb will be the brightest? g. k :s5oe84(swb c*ro mre1ku


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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 arqclpaof0:btc8qy* e1u,pmm)..-ik ce connected as shown. With the switch open as cap*e lbyq mp.m i0:otq-c c8.u1f,)kshown 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 ayaco*fj1acxt32d5 + i re connected as shown. With the switch open as shown i2 x1tfdy ac*ciajo3+5n 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 resistors are conngx,gd ss(6d 14 iywj7iected as shown. With the switch open as shog(xwiyj,isd 71 46gds wn 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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