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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, e7ozt1 f)m fsf6 p.jt/wz7h7;lub7d can electric current exists in the metal resistor connected to the battery. Which one of the fofl m6;7/ ef7jtzc ut177bfdz).s whopllowing choices 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 resistors are connected in parallel, the______*nqh(x8cvv fbl8h8 /v___each resistor ib n fl*(vqhvx8h88/vcs 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 gft2 g;opmq pp jdg22uv)*6(wcauses the filament to become white hot, while the larger wmqg o;g6f( g2 pt*v 2wpd2ju)pires 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 housb eb:0r6pwwa7 ehold lights are being replaced with LEDs. LED is the aca06wrb :ep7b wronym for 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 cro 6p10o0owmj7lz ax vt4ss-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 reswmpv 40jtoo1 lz76x0aistor?

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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 materiaxke kqcox7r1ho)/ad (*5e f+5e)x xz cl. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resis+r)hq1e)k5cfkxxe xoe c xo5a dz/*7(tance

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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-sx1.v, wcm ci r3zha* the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R .c v,zm c-1wsi*x3har 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 resisto r0ay*a*ld3rp //uvhjr has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. 30/ ajlypdrrvh** ua/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 Edt2e2e2icp ,ai8nfv9 xg+jxh)ison wants 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 8h2ev+fn2cgj ,e) xi x2tai9pmore 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 1eo g u s2zv pfku7.k3u.bj(1smaterial. The length and radius of each resisto z27e1 3o(jv1uku.gpk.sf bu sr 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 (c *p,l 1ohy9xf9qg mq8 1: cr/llntfxR, 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 tr,t ccm9( q9l h:y*qx1p l gfl8fox1/nhree 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 accompanying circuit diaguqv z23rn 6+poram has internal resistance 10.0 kW and the ammeter has internal resistance o3 n+r6quz2pv 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 bulwvb-)u6v u pp8bs 1, 2, and 3 - representvuupw-)b86 pv ed 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 the right. Ifw2lhw/37 k ky,z6k qfcr196y9 j sgmsf the current in all three resistors is equal, which of thc1jkhr z66kks23/ 7mqly,f9 fswwgy9e 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 5.j: 1uhzc. )cl1tqbssl rz 3z)q)m* xl identical light bulbs and 2 flashlighqu)*b:l h)1l.rcsz )s. tl 3mjczqx1zt 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 stfp4*.ro1 fi umatements is NOT true concerning the simple circuit shown where resistori .p*r4f o1ufms 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 conqaw xo rpt9) 15ako1;g1qnbc ,nected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the sano5)9ago,b wqc;tkr1 11x apqme 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 thbv a4h ejnuec72)f +q-e identified resistor in 5 seconds once the circuit w + )27ahec-4bnuvf qejas 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 simple circui kiu.25vwwd)bz9 h1oeup8 m9yt have the same resista9 dp 2wmkoiyuh. 9zvb5uw8e )1nce, which would 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 through the 6.0 ;pc --;c q 3as5dbj*)ep wvsahΩ resistor is 1.0 A. What is the power supply voltage V? cda)wpp3-* -s h b5sc; ja;veq


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.27: Three resistor)e 2)7m be dwnecd4c260fv fdks R1, R2, 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 6)ed72kfd) wvc0efemnbdc 42 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 Rvky1njj:s6l:oer/ h)m) boe 71, R2 andR3 are connected in parallel to a battery/eem: ob rl7vjn6)skjo:y )h 1. Suppose R1 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 wat9oq e x7xs h,4nrux*-yts and 120 volts. What is the maximum valu-xehu xn9,*4sx7 r oqye 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 w5 a. vzplu-nv/yf. tbw3skx6 5:)v hzwatt lightbulb designed to operate at 120 v/ 6)nf-w h 5pszzk:atv5lybu .3 w.vvxolts?

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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 dissipa 3n, a h1mdvqlul2hf8t4.o cg8ting 36 watts onl.cm4lgvad21t8u ,foq3 8hh f 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 marke ilyule40b ((ed "120 volt, 600 watt.” In normal use, the current in b l((4e0liuey 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 sbizv;.o8y*33s .z zqj hnu;gutx6 6g resistances could NOT be produced by a circuit containing only three identical 6Ω resis;8zyxs.nu q3*g 36 viobz jzt.;gs6hutors?

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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 equiva+lxyo9ik 7;+kdcy ; 5pu vte7ulent resistances CANNOT be produced using all three9k7 t yxykcidoe+u;u5vp+; l7 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 connect vwdps9-- 1eyjed together in different configurations. If all three resistors are used in a circuit, how many different values of t1-pv-dsyw ej9 otal 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 iu7ip ze *a09afs 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 reza97 0eif*pa usistance 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 pwwvdi0-fl - t((q1pq iarallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correct?(l vfi1qw0- (t-dqip w

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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 12Ωur.:xhnu6 +hx tfq 8f* when operating at 120 volts. What is the minimum amount of time that it would takhh:8 r u+n.*uf6x tfqxe 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 flowse8(3gq nn 4cwb through a 4 ohm resistor that is dissipating 36 watts of power? we(q 8ngbnc34

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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 vo mww r-e7s n b,zb/p93c74ve4hxpt+rflts. If thez-b3be+ mr4s7r, pfwtxe pcvn9 74/hw 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 lightbulb lit cont4rdhb9 6ts;lciph; z.inuously for 1 year at a r;tzl.;4s rd6iphb hc9 ate 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 lightbp ,/gmdcn(9z6; up ge yjme/*.+ip urculb results in a power of 24.0 W associated with the bulb. Which one of the following choices best repre .*n/m(u pgdu zp+/ 6y9jerp eim,c;cgsents 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 raor6 njh,0ek(asud)t9 ted at 500 watts in a 120 V circuknae)6, d 0rh(t9j souit. 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 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 t7 p(r89cg , rmh(fgvhao four resistors to form a simple circuit as shown to tga8mhcgr7p, r9 hf v((he 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 connecg)7u9v+xxr i,te m)i,kq74 aq ajpz eg5/vi ;nted to four resistors to form a simple circuit as shown to q9 gvire, keit ,7juq)g/i7+pvzmx 4)n5ax;athe 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 )h42bz;l3 .yp,mh(5 k hlkrrswq z8al ammeter, a switch and three resistors are connected as shown. With the bll(yha 8 w 3r4pzl)2, kh5z.hm;krqsswitch 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 51yvitekhklq(s 5mr71k(l5 iideal ammeter, a switch and three resistors are connected as shown. Wit5se y(k1 kkhlt7qi1 m(5iv5rl h 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 switch and three resistors .m tu,e, eis5uare connected as shown. With the switch open as shown in the diume i.,eu5 s,tagram 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 thk6i 2( wzg +w/dkoi9pse equivalent resistance? Assume that all wires are ideal, the batter2wz+w i soi(9pkkgd /6y 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 tl*3ev f,z0 m( snbm-vtshxz:5 he circuit shown to the right with reszl: vnbhevm,m zs(x0f-t35* sistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combinatili zz9gr :8c:o(qyf/ier- b92vul(u*eec 7iq onlc eu(i9:-urfo:l iqi /rg(vzzcqbey9827* e 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 resistors connected in;7 mazfcbwzm+w4 w1ndx+6bg3 a combination series and parallel circuit to a volt 7awxzdm;6+3zb4 nc+m g1fwbwage 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 identical. 6qyhti:**gs 5l 7 cacxWhich bulb will be the brightesh:*x*ctgi6 7 a5sylcqt?


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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 ammete,poa :6e)lv ler, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the):ea olpe6v ,l 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 swh34 02wyjfwb8z9sn 8j hx4lcritch and three resistors are connected as shown. With the switch open as shown in ths 4 hl9j4fh0 82zc3rjxn yw8wbe 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 amme4rux zhb) h6d(ter, a switch and three resistors are connected as shown. With the switch open as shown in the diagr(6 uxb)drhhz 4am the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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