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习题练习:.Resistor.

 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 cu7 ric6pt +u 1s;6wkx;wrs:jggrrent exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flowrk6p7gx ;uw;:cs6jtg i1w+ sr 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 connecfy,0 gmw6ms ;sted in parallel, the_________each resistor isw; msgfmys,60 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(* tgc/cr5rws thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires ( rs c/5wcgrt*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 being replaced with LEDs. LED is thec ,fzf u2cpk p0dzut9(1*m4cv acr*0(,ufdtc 4c12cz mu v9zfpk ponym 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 hacqg b 62)rwl9ii3 y u.c6,;avwh1fin os 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,i oac.)qgl396c2w6h r;v1ibui ynfw 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 of the same mater vijfd2 kp50y+7:rfaeue06itial. Wire II has twice the diameter and twice tp7y+eet div:if0r506a f k2j uhe 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 diam k7;p cs0(nly;p(w/a:s4ribjkvi+jh eter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resi(yi(pac:ij v47 jhls k;rskwp0 + ;/nbstance 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 radiqr :0kp+:txwbus r. This piece of material is then drawn so that it isq b:r+pwtk0 x: 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 light u8qdk( y+cn v5bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in ov (8kdcq5+nuyrder 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. The leng t0k/,aj;i+eol6wlcp th and radius of each resistor is: taoc;ip 6lk0l/e jw+ ,
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 avr4 r.1x/ z2ml4qmhz g 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.” gq42r zx.4zvmr hm/l1 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 diagram has internal r bzxhja2zh/0p+0p6if esistance 10.0 kW i6fphpzh 0+bx 02jz/ aand the ammeter has 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 circuit showazqk-p n,:-dpjy ur,2aj-6 upn to the right. The three bulbs 1, 2, a-a ,yu a: rnj-6jd- pzkq2pp,und 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 cirrnz) nzj l;zx5:mh8c 0cuit at the right. If the current in all three resistors is equal, which of the following statements must b8ncz5; znr: z lm)jxh0e 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 repapyv9 fc8*pnz4 e czt1r,k /(yresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which buy pa9vz814cct*(, ry/f zpnkelb (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 s.,-r811cqzxfjzavy7l gr8 r is NOT true concerning the simple circuit shown where resistors R1,7qjz1, grv8 . r1-x8zlarscfy 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 connek4 k)m ,gtssle9vobt5 28t1v ccted 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 same battery, which one of the follt4,5t8 1lkvs)vog9m 2ecb t ksowing 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 p71p4 / ocvd*zlr/dk, q0ih wiwill pass through the identified resistor in 5 seconds once the circuit was close1rwc 0pi,ozv4dkhq pli *d//7 d?


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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 c* -jmbs f4w- ot3rmqu76 x q,c;+ekhvpircuit have the same resistance, which would dissipate the greatest bmfxq m6c- ,rhej-u3*tw ; k7psovq4 +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 circuhs7 h9dr* kug.x 1*hqsgu3 9yvit diagram, the current through the 6.0 Ω resistorg9 vdhk3** hs71xqy ug rs.hu9 is 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 qi e;( nhrsb72.3d)sx(sxsx care connected 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 powedqr( 7sssxx nihc .(;exs)b32r. 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 an1l.ah:p *;w:auqa iov ; 5vcnwdR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, a:: ;1uc wln;vpqawh v.5aa*iond 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 volt*l jilkb+vj+p54ly0 us. What is the maximum value of t4llkb *juj+v+ 5 l0ypihe 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 watttd2 r. 3g *m/fztzg+ps lightbulb designed to operate at 120 volptf3z/+t d gzsrg2m*.ts?

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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 resisqus3x v+nqa 2ue29u aoe.lx97tor that is dissipating 36 watts onuexvsxa u9qq e 397+aol 22u.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 marked "120 volt, 600 c 5,tjplrlv(fc19rk +watt.” In normal u(r9r pt 5l+cjflc1kv,se, 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 NOTw zw4vn-.oov8 be produced by a circuit containing only three identic wzvn -w8v4o.oal 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 following equiva5quk:u8+nztf1 mb(z8 pikp i4 lent resistances CANNOT be produced um: +qp(pi n t4k kiz85ufbzu18sing 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 connect ;luu n*;fl dwigu5r02ed together in different configurations. If all three resistors are used in a circuit, how many different values of *u2 ;ldignfruulw0; 5 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 power P uzhq-o g25by,,ei q*p is dissipated in the circuit. Hg-uizq, y,hb2p *qoe5ow 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 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 p8 o wf l)qi,:)dv) h-r5z.grb wo:lmeitg;9yuarallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the l zu5:h i-m );iwl9rwrqyfvegdbo)8): g,t.oresistances 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 resistanceatsgpa y. 4c1, of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45t1,4ysa gcp. a 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 s3efu.fgq jm 2rmu1ck 4ui(:9through a 4 ohm resistor that is dissipating 36 watts of p4 m2.q(:msgi3re9 cu1u uffjkower?

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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 draw3;c np+nernj e wxz(9/s 13 amperes of current when connected to 120 volts. If thee;n3 j /r+n(wze9pnx c 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 kel: 5fbgnfc-o x9+ pbj 2k90uzcep a 100W lightbulb lit continuously for 1 yeacjk pfg : o-z0b2x95clnb uf+9r 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 results in a /w8pcupk, ;uupower of 24.0 W associated with the bulb. Which one of the following choices best repup/c,upwk u;8 resents 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 owns1ww 1jnpq x7(c a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a singleqc(1 x nwp1j7w 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 to four resistors to f7bdsi0 p*jm z *:mkj24yawk+zorm a simple circuit as kmzad:*7jbjzm 2k w0s4ip*y +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 k0xd chry-ui173 g+ejcircuit as shown to7y dux-c kger+hji1 30 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 switch and three resistors are c m:yfwd.y /)bgonnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amp:) mybfgw/ yd.eres.
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 fm/cggp- 61*k kh0xn cug-u oaoma9;(connected as shown. With the switfko;g0x(/*kuom- pg9 h-gcc6 m n1ua ach 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, 5xc +3ta98uhez8b 9we4pdsw jan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampeecj a txhu49 d+b93w5s 8p8zewres.
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 equivalent resistance40z h;ql e wyaeom9r-4? Assume that all wires are ideal, -0zwyqmr ahe4l o;4e9 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 resit3 *p; mxm1 xd0urtrr*stance of the circuit shown to the right with resistancesmrrtd 1 *;*x0tuxm3pr $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistbumadjcoklb u; 1(1h(1d9e1 fs:ch)lors connected in a combination series and parallel circuit to a voltage sourc)(1 l;mj9oadsccd1 u bkf(el h11 :ubhe.
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 connj,cbdxewa;h+ 4wmb*5 q sxf 43ected in a combination series andw,m4b3x h ;5 cedajx+qs4wfb* 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 circux70y9)j p pto) ugr ;sxt0wh,sit diagram, all of the bulbs are identical. Which bulb will be the brp;90u rjt) hws,tyo0 xsg)xp7 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, ajb)dk7 v9ehu2 n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. vb9j)2kd 7h ue
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 reskedf;jm( y)4 jistors are connected as shown. With mf4k (jde)j; ythe 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, afr08rap4,xlt- uwx 3m ej es0)h8ab g+ switch and three resistors are connectm3hg-+0ja rxxst) 0,4a wu rfee8p8lbed as shown. With the switch open 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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