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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 metal res qd ok8m)4-ze iv+usyi 7.+:p nv8msgzistor connected to the battery. Wevzmguy8 z8. 7 n-)i++4 km:psqdos vihich one of the following 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 connect wqq b5 ;)ok*boznv)f3ed in parallel, the_________each resistor is ;nzwob )ob5kq*3)f q vthe 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 td3i2t31(eb ) aqcphenhin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. Thistpd i2ena) h(13cq3 eb 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 householu3q60 ;clqa tmd lights are being replaced with LEDs. LED is the ac3ulq t0cma 6q;ronym 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 resitj .+:sa4br axstor has length 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 cylindrib: xa.+jra 4tscal 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 material. Wire IIs*a6wz7wrp nyox+ j+, has twice the diameter and twir7yp++w,aj6wzo x n*sce the length of I. If I 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 diameter and halfzbu *hiiznjkbo h/jr +(x 6m- 1v:rg;7 the len o mhjhg;rz17- b(rzxijv:6*ibnu/+ kgth of wire X. If wire X 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 m6jr, 1aeeg8 sv y9 s6/wtctkrwlv; 5o(aterial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becaus/ 6,sjor t(5 c6w vya;v1gke9estlwr8e 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 wantsxi u,8 alb/ f:1plnjn; 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 more light at pa1nn 8l:lx;,f jb /iua 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 ;nqfdr x78lcf9 wy7 5bxfi /(dmade of the same material. The length and radius of each resistor fdc7yf(r/iwn7x lq5;8bf 9x dis:
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 to a0kv01lvj cd.w,zpc-i2ykflhxd0jm ;-q . g(d 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 thr. q0dg jx.j1w2ld(;k 0, c f-dyl0vk-hzpiv cmee 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 i25pmyik4t;hyh .gi35c i+yu lt-vw+s n the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal rvw5i+; yh ig34 cpu5lt.i+s-mky 2yhtesistance 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 c vvz:) 8oe,9uvag6 hoqircuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the dia68 og,:vhze9qauv )o vgram
- 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 current xk7 , eyrho t+:b)r5u4 otk:qx ls;*kkin all three resistors is k ouryqk : *5,tb)e x7x:st+4kh k;rloequal, 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 uf3c.qfwgsnw/ n7i5q n9j-t 4 composed of 5 identical lu cfnn9w3sf 7-4twj/ng5qq .i ight bulbs 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 trubo( n)k4is-1lz;ausg e concerning the simple circuit showng -n i)o;l kaub4zs1s( 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 )wk: h3 gn,6stadvmxz)3q g9wr+vs;oin series to a battery. Bulb X is brighter th z+wv;ksrwmgsdv3g63qnt, h9: x))a oan bulb Y. Assume all circuit 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 will pass through the identified resi.l nvx:4ipz h+3maa p:stor in 5 secol:mip3 nh.: p+4z xvaands 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 resisto6k w/4 zwq thes.)6lvbrs in the following simple circuit have the same resistance, which would dissipate th .bw 4) 6tehzkw6/vqsle 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 tgc+4yl: iw-uh 2ftap6hrough the 6.0 Ω resistor is y62t chpgw u4i- :fal+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 a batte9wwdtj maza/k,75b15:y/sfvy h 8ckk ry. Suppose R1 carries a current of 2.0 A, R2 has a resistance of yca/8vz55s: hyb/1j dwka ,k fmk7t9w3.0Ω, 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 an,6(crsm:.i*b/wbjiy *d z2 ntbrw*avdR3 are connected in parallel to a battery. Suppose R1*ian,jmrrz/6 w(w*:bdvb2 b *siy .tc 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 120 volts. What is the maximum 4o( jn m54u7rgjrw *bavalue of the co4 (umrw b*ag5 n7jr4jurrent 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 o/syyv./*o:ymr) jzt-a fbo( o f a 60 watt lightbulb designed to operate at 120 voayoy/.tbsr / fz o*( m:)vy-jolts?

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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 currenh9 vss5fl*kg6t flows through a 4 ohm resistor that is dissipating 36 wa 9l5ss*gfk6 vhtts 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 usek(n746ptwgno*p i 7r 1cl4y o+ieeh* nd to press clothes is marked "120 volt, 600 watt.” In n kr ntne4+epi6ngoop4wcy 17(lh7*i *ormal 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 followincmi 0 )do87bkng resistances could NOT be produced by a circuit containing only three ident) bn7ikm8d0co ical 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 followingmh.th u9r)x (j equivalent resistances CANNOT be prodhx9thu(.m ) rjuced 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 values7 m5hrumu 12oih2rhh) can be connected together in different configurations. If almru ioh5 h)r 2721uhhml 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 powew: gxocg,7w7k r 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? Assumew c7go:g,x kw7 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 resistanb 5zn v f24qtvp h(.+yay7rp4ece R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistancee q4r+.ah p 2pz7yby4vntv(5 fs 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 rew ns;emnt:5oste7q3 pzr (y )7sistance of 12Ω when operating at 120 volts. What is the minimum amount of time q7 m;nt 5sr3yw7(t:p s)e enzothat 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 ohm61hgq2sq 0l vudn/53ljz5jj a resistor that is dissipating 36 watts of power?0u3g2h56z /ldjnvlsjqq 51ja

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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 **qcmui6+y xx13 amperes of current when connected to 120 volts. If thxiqy+xm*6*u ce 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 1tbk m;yinfv) 1 tp211s00W lightbulb lit continuously for 1 year )s ;yfvm1tpik1 t1b2nat 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 results in a p:*ce ,0plcxgv ower of 24.0 W associated with the bulb. Which one of thvl 0c,pcg:*ex e 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 watts in ac rl3 bn-2nmicbm 9g.0 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum number of t.-3lc i0mnrm 9cbbg n2he 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 resistok*htt3 tftfw-+ )t p e5ht9lzg/z(7 eqgio1 6ors to form a simple circuit as shown to95etwo t fi ph6z1 +(oth)/f7gk g*l e3ttqzt- 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+4(clma x5mduo(jh l+.a7vnm simple circuit as mxa4 7lu( +d.om5ca+ mnlv hj(shown to 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 batteryvn9 a,cg-a9iiqx kni0yx 8e97 , an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amm aixe8a7ixq9n9 v,g y9n0 -kcieter 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 battehobkjj.x166j-mf b ;p ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as fm.jjhb1 pk ;- b66oxjshown 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 threkty3q:5b3oj ce resistors are connected as shown. With the switch open as shown in the diagram the ammete33c:qyk j5o tbr 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 equivalen kz25mmf o8sq4:-njxb t resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors hkm2n:8-x5q b4zjm sofave 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 ofdm0e4 (/:f.t*xzo k oiemx.h x the circuit shown to the right with resi4e:e mzthxooxx f0*/.ik( dm. 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 res5ny2qy izb eav+0d km+3hil/1 istors connected in a combination series and parallel circuit to a vhq/5+0mby1zke2a y+v l i3 idnoltage 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 identic;x;qeuh.zcusdn)dx(u -za39 al resistors connected in a combinatide)ud ;(s a z3uzxuc.9;x-nqhon series 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 j/e-s0 jv8m6b)3 ghdxx bck 8x3teej3 the bulbs are identical. Which bulb will be the brksbe cg8d b 3 3x0ex6jejtm8x3h)v/j-ightest?


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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 dvi;)ua -ia,3 q.:e zve+xuscammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammc -svv:aqexdui3+.aui ; ze ,)eter 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 th:p e0s4 qmdnc9ree resistors are connected as shown. With the switch ope9msde 0p q:cn4n 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 resistors are co60*eqt +cmftb l wn19szg23bw nnected as shown. With the switch open as shown in the diagram the ammeter rewst 63ntb0flc9 1m zb qge+*2wads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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