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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 electc/dfjc9;1nd( :wq;3z g8/ibwv pbzg dric current exists in the metal resistor connected to the battery. Which one of the following choices best descrid/q9vwcgd nbgc3p z8bj (;f:1z;d iw/bes 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 parallb qqs s x+2c1quy28u1y7yr 0(ihpbg3iel, the_________each resistor icqyqby +pix12q7ig ys s8u3( 0bhr2u1s 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 causes the g 4dmiuj:y ,6uis57d,9ueup vfilament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens g7i pd u v54iyues9ud,u:j m6,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 replacgg 5qg+m czrknmheq mf3hfs -sw(,08 76,1m nced with LEDs. LED is the acronym for which one76hnf3gfn,zm -(qkegc ,gh 1+ 5mrqs08mc wms 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 dptt+fpm)f sk06yzfm;2*jch me6/b6 graphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut inb eftyd*+6 pfm )h0mf; pmst66kj/ z2c 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 made hnu99 m gs5hr o5--zk -v(ucyrof the same material. Wire II has twice the diameter and twice the length of I. If I has res5(-g uc rk-rs 9h9 umzhnyvo-5istance 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 diaeqc6oc5bi:2r )ikni1md t;2 a meter and half thecdq 2 ;co6 21aii) tmernkb5i: length 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 n mp h5lv/s ,p7/-3fgjycu*l(bt 2am hof material is then dr/uc35fhymm7sjpp n*v-l /t,bha( l g2awn 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 wants to make a brighter lighbv4t)qyikce9z )0 d+b9wn; iv+tv7 hht bulb. He decides to modify iit ve9q+ vwhdc9 ;7b4t)) vkynzh0b+the filament. 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 are made of the same mate;w541vgs5 njq td0uon cw s)nm1m0g)frial. The length and radius of each resistor is: n5 sd fcg)4wntw1gvs0j;1mo5m 0nu )q
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, ah 5u(ege-msq0hacp(1 re 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 rese0ch(amsh-(e5 g 1pquistor.” 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 accompacn;4ujc.l s 6kb r9z1+y j8iilnying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most near+i9 46li byc1ujkn zsj8.rlc;ly:


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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 threfk ,+kzp 8*twle bulbs 1, 2, and 3 - represented as resistot*kfzpl w8 k+,rs 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 elect-c*06amt at kf br(x3erical circuit at the right. If the current in all three resistors is equal,(ecb6t *0f-kma3txa r 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 repggpc*0+:m -jtt /vswkresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlighv ts wmgjg*/ptc +-:0kt 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 statemern bu,mqyk.l9v7 *w4 +w1)q xnld zkv5nts is NOT true concerning the simple circuit shown where resistor9ynk nqlm5w*4 ud,1 bv z+v)wk.x7lqrs 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 baj n-.fz:ts75si zv hh4ttery. Bulb X is brighter thjsisf ztz-v:h.54hn7 an 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 identifiedryngcm3 mv * (cejt751pf9r(h *b2jtl resistor in 5 seconds on91m(7hclp3ft jv* 2r*(ty5n jrmecb gce 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 following sixkkr8t-x:ogjq:haj v24f4 3i mple circuit have the same resistance, which would dissipate the greatest po:xxokk:j8t2 r - iqgf ha4vj43wer?


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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, t :i 1 nunic a70c+jbbx,cmr6l6he current through the 6.0 Ω resistor is 1.0 A. What is the power supply0xirc bnai c 61l7nb:m+c,6uj 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 bawidce7hm, t 7snt,3j 4ttery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W3 , ie,jch7m tdtn47sw 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 resistoronr+n(vzr by 0/6f6d r6)girrs 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 in R3?o)rnnz+rdf byr (v6r/6 06i rg

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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 ratedweawbzr+e-d8ozv ( f08.6t vz 1200 watts and 120 volts. What is the maximum valuez(vz0- ew6adf+8r ebowtz 8.v 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 lightbulb designed to op 1)p zbmmiocqk)kpo+s80k: 4perate at 120 voltzp4p+q o0k:1mok8k)cpm)i b ss?

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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 4h 9.wru.cknmb-nc x,. ohm resistor that is dissipating 36 watt c,mhn.xcr kw. bn-u9.s 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 iz b eqh4m-,lc;ron used to press clothes is marked "120 volt, 600 watt.” In ebchlm,4 -q; znormal 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 pro5 cl42koonvt ykp+, +rduced by a circuit containing only three ideyo4, p5c+k tnl+r2kvo ntical 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 ya*/ hdvl63ztthe following equivalent resis hatv/z d63l*ytances CANNOT 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 of different values can be b3x 5.;noa2lrrcq7cm connected together in different configurations. If all three resistors are used in a cirm;o lc 7 r5rq3bnxa2c.cuit, 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 q/4dr +)vh;pocbw- cxsx6j mui0 (zs9resistor is connected 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 0d+srcwi)upc vqso;4mxhx6z(9b/-j 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 u0nyw9bey c10vi :j66qo( ujeR2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statemj9uwv(c0:o10y ue b6y6e jiqnents 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 y8nek-q2 y3jkov 1ywvwm6.k: has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 k ww v1q63 kyko.2e 8nykm:-vyjg 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 4e.q9 ttr0s )tf ohm resistor that is dissipating 36 watts of pow)rt90qft.s te er?

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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 curzb mbeyrzp 5z+3.y. 0yrent when connected to 120 volts. If the price of electriy 0ypbb.3z+emzz5y.r city 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 kee a(f0taafp9sd )7n z+lp a 100W lightbulb lit continuo safdp n(la+f)az0t7 9usly 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 through a lightbulb p 6y atgkfw/10z0ge )h;*cfas results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of t/ze; gsgph c taf)kf06*a wy01he 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 ownyumwvdw 7*9 s5i 6+nxys 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 o mu xw+nsw97*yv5yid6 f 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 fourt)cgj6cp,x7 m resistors to form a simple circuit as smcxg,tcp76) jhown 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 ffl9j66:kg; x2a 1avl ib,kebsimple circuit as svgk1 l:6iafb6 xb; lk,eja 92fhown 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, an ideal ammeter, a s8+a-*/2x nb 6 ezk frkvgr7vzh8 ie:oywitch and three resistors are connected as shown. With the switch open as s*v+ x8 /k ergrnoh:82kbi6-fvez z7ya hown 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 co gy xr.y;wsz5xp( v9ok i)y.z1nnected as shown. With the switch open as shown in the diagram the ammeter rex(5 .yzyzw.ogir1xp9 yvs ;)kads 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 ammet+u 3i/ lf l;wpaaw3,oter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammete; li3+,fpuo wwa3/al tr 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 rig(vxnc;+k dyaxt. w, mr 77mtz4ht, what is the equivalent resistance? Assume that all ;w4cmzx(y 7nd.+xtkm,avt 7 r wires are ideal, the battery 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 rey7xu79t u :lblxto81 isistance of the circuit shown to the right with resistltx7u yx17 tbul:i9o 8ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fc1q0a/ e gmdp1ive identical resistors connected in a combination seqg1ae/c 01dp mries 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 4h ds 1v9rf8rxshows five identical resistors connected in a combination sxf9 sr1h8r4vd eries 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 identicaxpysu2y81v gi+h8m t:l. Which bulb w :ih8ux8typg2 s+1mvyill be 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, et e3jzth:x 1+an ideal ammeter, a switch and three resistors are connectxez :ht+et3j 1ed as 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery,/xlqt 9b ,.e+4gfagbh an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the d fa /leg. b,b49xtqh+giagram 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 swo hki//j qnvv5( u:9zvitch and three resistors are connected as shown. With the switch open as s ( o9v:quikz/vvn5j/hhown 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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