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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 currenwljnhu ,pzkjw-0 e- y kgpr.4u;fv1;,t 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 direction of the electricjv41pkzu; k,;lpw y- wjn- 0.urh,g ef 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_______ynpq:c 6xs djl1 92jl,5qujd5__each resistor is the snqldq,s69j:xd55u ypl 1 c2jj ame.

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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 filame8 w .wk30o;cxzc*o qyent to become white hot, while t; wcqo3kwoe .z*cy0x 8he 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 lights are beingzsrwc ):.tkyl)t g ;g7 gb8+;)e pxcay hx4;pq replaced with LEDs. LED is the acronym for which one of xgrck z)hqe +gtx) g. )a8;l;:tpscpy4w y 7b;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 resiskz 4vb-pp7koss8 s4 tya zt, 5vq2m6)qtor 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 reqo45tvzy4sb6-s2ptm)sz 8kkq7 pav,sistivity 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 made of the same material. Wire II has twice thas73rf6;v s lla0zqc; e diametef 7sqsal30v6rl ;azc;r and twice 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 (26 ic0hoay.;e utjymbut has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resis (;uhiyt eoy2ca0m6j.tance 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 resh1z7 s5r3s i*idnfl v4cs f:;nistor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of 1ihds 3 * ;f75ncslfr4 zsivn: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 wants to make a brighter light b2nb,rohte1z*s )r l9a6 v 3nukulb. He decides to modify the filament. How should the filament of zban93o )n*r,v 62hst ku1r ela 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 are made of the same material. k0xe of8:u t; x8qglb8The length and r8 bexxuf8ot0l: g8q k;adius of each 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 R, are connected to a battery in thrt+c*+-dr n02x p 3jhn rp5owbgyz c4+e 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 fourtng2c 3cd nohr+- t+p*+jz504wbry pxr h 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 accompanyin8g:dc tjmcb;8 g circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. c;mc8tb: 8jdg 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. -t9*rm3 vn x8yumckr (The three bulbs 1, 2, anmmxuk(3- 9y rtnrvc*8d 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 electrical circuit at the right. If the c e-qa-dkkmm *,hw2 b j6qyilcinp35+* urrent in all three,j +eam*hdl3c-5kiiq n pkm*2yb q6w - 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 represents a simple electric8:wlfi1f dmtx cwwug,. ,u*1w circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bul,,cdtim.wf1gwu l u* :wx wf81b (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 cofx2ei9 s-ylh9ncerning the simple circuit shown where resistors R1, R2 and Rs9-lhiex9 f2 y3 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 seri-gw) f,b b5ooues 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 same battery, which one of the following choicesowf ),uobg- 5b 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 resiz9fuy w6m yd9 5bxon32stor in 5 seconds once th2m5o3 ynx wubz9fd9 6ye 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 the3wk 0h ztd26ecd30opy following simple circuit have the same resistance, whichd23e0wp3 doch0 6 tykz 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 cur d//irhj kct6qz.eu80rent through the 6.0 Ω resistor is 1.0 A. What is the pow6j/ 8hzt0qure . d/ckier 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 areghb0dvcqd0 (8 connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, 08dgbq( v dch0and 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 resist, 9wp5yi:4:v jnmufys ors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current i m::4yfp5uwy,9vs jnin 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 roj*q:/z *g wxy/ g7njsated 1200 watts and 120 volts. What is the maximum val/*y7 z/oj j:wq*xgnsgue 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 60qh t,:+y0o l9xeta:nd,m y2v q watt lightbulb designed to operate at 120 voldn,x,t 0th qeyaq2olm::+9yvts?

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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 thsedu68j ubi 1- )pm1pcg0aay+at is dissipating 36 watg1b1s8dy -pmuuijc0e)6+a pats 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 used to press clothes is marked "120 volt, 600 w0,qcetvxk*6f att.” Inq6kfevc*x t0, normal 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 could NOT be produced by a circuit conb7lrz) /m*sdt taining only thre*r zmbl )/tds7e 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 threa :makwihl r4 4k.5v*vys,9yee 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resistors?rw.,hv4vi*95s: y k m akylea4

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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 connected togetheruv7gptj6* h8:/ul vcd in different configurations. If all three resistors are used in a circuit, how mvj7 6t8p*u/ v hduc:lgany 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 con4;onuhjm +d1fx wp) 1inected to a battery, 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 the b4f punh) d ;ioxj1w1+mattery 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 resista+ md7v93 dttuvnce R1 and R2, are connected in parallel, the equivalent resistance of thedt9dm7vvut 3 + 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 opb8w un1oq; k )y9p03v nd0yfqyerating at 120bvn y)uo;yfnq93 kqy8w pd 001 volts. What is the minimum 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 dissipating 36 wa: +m63ujdmutm6 ca8tni*r sx8 9slis2tts of powerc 6uimli*rat8: us6m3sx2j s 9nm+dt8?

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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 connectedtof4,mkmuw5+kvfk(d 0ddb xm; 1y8t 6 to 120 volts. If tdmd 8x5t ffku;m0mw+bk4v do1k,y6( the 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 wou)fc65epxkx ynopcl-l6 9nvy 0,b/(n y ld it cost to keep a 100W lightbulb lit continuously for 1 year at a ratl0ol-c6)/ kc6x,5nfvp eynb(9 y nypxe 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 thr; giqvf31dj9f83hhf 1g ocp w (m,sdz*ough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices 8g*cvg3o1qsfjpdhi d 1fm z3,;9h(fw 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 fam)qlbt;e 3*leo ily 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, what is the maximum number of the computers can be operating at the samel)oe* el3bt;qtime?

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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 fori; 3;cf0lkm: ihq6iy,c+ ujeom a simple circuit ;co3juy,:i6i l; f +h cke0qmias 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 r qyy7rbe-;pq : fx5s 8yr(3zc6i n,zawesistors to form a simple circuit as shown; ybcqryz6iwer:q sn-xpzf3, a758(y 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 battery 7qv2/3sk0as rsvm:k u, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammmr0kvs /2asv 7 usk:3qeter 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 resist8 9(ez 7ycm :tmudmll,ors are connected as shown. With the 7 9m(clte8y ,um:dlmzswitch 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 4qhua5x7qnq;vqx/ 1zammeter, a switch and three resistors are connected as shown. With the switch q7unv q4z/ q 5;xa1xhqopen 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 right, what is /tkrb qu7q+3)erf e5g the equivalent resistance? Assume that all wires are ideal, the battery has no inq+ 5t uf gkq/7)errb3eternal 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 the circuit shown to mp0uh)jn,os9+vwk/ 1vcf gn+ the right with resisthv s/jkno1vc0p m+gu) fw ,9n+ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 sh ulvqm1c)bu *9ows five identical resistors connected in a combination series and parallel circ) lu b*uvm9qc1uit 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 re nc . n3th*9 kmt6 ozp+*jzh.z5a(hqnzsistors connected in a combination series and parallel circuit to (m3ztzt96ha +q .n.hnkz5 on*hj*zpc 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 buaqna + ;u49iwllbs are identical. Which bulb will be the brighte lu4aq+9a in;wst?


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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 ammetekroay)s t*avi/);t h,i*cq+ hr, a switch and three resistors are connected as shown. With the switch open as shown in the diagram th)s+akqv,c ayii*hh;/t )t *ro e 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 b+ss2ok k -k1t 89lxbh4orf.wa gy -b(ammeter, a switch and three resistors are connec kgs-hbo4x2lw8o 1ryb( +k-9bs.kaf tted as shown. With 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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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; o 2q3); eik9ywqlkva are connected as shown. With the switch open as shown in the diagram th;yqweo;q9kl2 3va ki)e ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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