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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 showv3mvb, *uh+, ccddue2n, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow thro+u,h,*m3cedu2dv v bcugh 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, t emgu1s xt w74a ;a4i;)hokdt+he_________each resistor is tha4a;+hs)im7 wo1eutx;d4t g ke 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 cq+7 lyjo/l*z+ v,rh3b1pgu st auses the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This havo,z+ r y/3ps*u7+gll j1qbthppens 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 tr.+c7ev e,eov 8sn/xvg4n ,cphe acronym for which one of the following cho7ovvv/cn 8 ee gr4. ,+ns,xpceices?

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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 r urmmd-t740 tfesistor 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 thmd u4 f7r0-ttme 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 wirz(.jafr5w 4t np*0xd,rga9q a e II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II hasar(4aq .pd*ftx5arjw z9 g,n0 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 hanp-g05h ywwe.fi m,) nlf the length of wire X. If wire X has a resistance of R then wire Y would m) -nwfh gywi0p,en.5have 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 kf d l g:vmmdb/:wc872length 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 f82m: kdvc/gdb:7mw lof 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 bulb. jyj h+w5dme3s3v a 5xero2z:( He decides to modify the filament. How should the filament of a lighta3w :oejm5jx3re5 h2 +zs(dyv bulb 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 mq/b* l*jcdmb*o u+e tx +oe5.material. The length and radius of 5j.qo*x/b em+b+*e utd*mcl oeach 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 e ycv5+8jdo9e l/v:ch, nndy5resistance R, 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 three resyo, 8:v5+/ln5vened 9 y chcjdistors 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 circuibep .mto0+y;7qpl: ns t diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammet7t: p +e m.qyo;s0pblner 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 tg1(zu17sbwcus6 ,ba ;zmd -onhe right. The three bulbs 1, 2, and 3 - represented as resistors isng 6z maw1u7,u(bo z cd1-b;sn 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 curre+3l5*xzv( y mqamk v5dnc,v 62g bpjw,j )wh0hnt in all three c+j ,zwd xk vvb6p5 (ln,h0y2ga mmq)hv* 3j5wresistors 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 electric circuit compose49(w 7ljqq aeed of 5 identical light bulbs and 2 flashlight cells. Whicheaqw( 7e4j9lq 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 fl bc2 lrj c806(juam7o aea+-hollowing statements is NOT true concerning the simple circuit shown where resistors R1+m aul2j0e68a-a 7 chlj(obcr, 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 serih a, bvv/cyi 5g+zp) 1,d0geg 2zvyrt.es to a battery. Bulb X is brighter than a1idvb.vg,r 0 yzz+g /5pt)2y gecv,hbulb 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 throui+kw;7 5vqd sogh the identified resistor in 5 seconds once the i5ok; vq+dws7circuit 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 simple 7xbw;v:9 a lauvasr p.j0,vi5circuit have the same resist;va:0pj,a.vlsau7 5 iwrvxb9 ance, 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 diagram7-n y2mz ff(yyl5oo f4, the current through the 6.0 Ω resistor i lnz2f o7f4yoy 5-ym(fs 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 ) ymqgk ea1k o0cil v.3f,y)1nare connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3nq0).cm 13vekigy1f,o)kaly.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 andR3 are connected in parallel to a v:q vi5b2,wnfbattery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the curr fvi,v q5bn:2went 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 maxw5k -s y)/rytbjh*qv9imum value of the current u -r9j)ky/tvqy*s bw5hnder 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 watscp93v rp.5hp sq *9eht lightbulb designed to operate at 120 r9h s e*q.h3spp5cv9pvolts?

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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 resistot, rf (+3da (f1cu s,oqvm5uzqr that is dissipating 36 watts of pvf5(mdfur ,+ sqq czaot3u,(1 ower?

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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 ci pb 9);tioh (gdg;b5 q0t7fpclothes is marked "120 volt, 600 watt.” In normal use, the curoq7 dgph )fi0b5t;;c9bt(ip g rent 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 follow+d . 7qyuc-42 pblcbkaing resistances could NOT be produced by a circuit containing only three identical 6Ω resisql+ c7b2pb dcu.ak-4ytors?

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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 three7mnr3z;dv k ptcscu vwr 6zl7/ u/0-/v 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be producevczrrnudu/;m vz0v37w6- //cpktls 7d 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 va1a6wi vuu14tk lues can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produi6utka 141vu wced?

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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.aohke8c m7 ))y: kcvt 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 resisto7.vcye :kt h)oa )k8mcrs 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 ank(zjoiw p 0a//d R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the res(p z/joik 0aw/istances 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 su c+7i g6/eoa(b9sg wc6sru9bmch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to /u9bc7aso b6g+(esrcmi 9wg6 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 flowsv+fb ew94vl(a:s o 3yl6bqyzxjz,-y. through a 4 ohm resistor that is dissipating 36 watts of pow94yzle,3z (-+x q6 oa:swfj vvybybl.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 current when coug *khi/v vx:fk r8i//nnected to 120 volts. If the price of electrkh f */g//8rvv:iuxikicity 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 woulms sled9 b8ki;,h2k( pd it cost to keep a 100W lightbulb lit continuoukip2 hd ;k9s,(b mel8ssly 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 l(+*n mcsbq - j4fxz+hrightbulb results in a power of 24.0 W associated with txs+ +c nbrzm4*h(qf -jhe bulb. Which one of the 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 oyeov4a7d*/ kmf34o f 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 numb vo/*k ooa74fdm 34yfeer 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 form a simpwlm5x6- srbcoys3;5 te c,f3v le circuit as shown to the right ,;6cml5bxs5re 33tsf -vyo cw.
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 connsfh ;:uww24y .;jsgjsected to four resistors to form a simple circuit as shown to t :j ;f.s; uj4sy2whwgshe 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 resu-stfzc 3kw ;g02ngo )istors are connected as shown. With the switch open as shown in the diagram the ammeter rea t g uz23cnw)go0s;k-fds 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 g pr+aq0l2edz a.+fq5s :75a3puiwha ideal ammeter, a switch and three resistors are connected as shown. h+fp53 aq.:02 asu azl75ip+eqgward 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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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 swtf) ,;* batrg u3tlj(ditch and three resistors are connected as shown. With t rtd;3*(aflb gt )tj,uhe 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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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 equivalenq0 covbeks/prg * d,j4+2h s4rt resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resi2dk/4sg 4qser ,*pbv+r0oh jcstance 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 ofqp wt49 ra0w ;f+9jo( s1j vauuc+9pza the circuit shown to the right with resiro+jau;(aw v0q+41aj9sp9 w tpf9zcustances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belo vwd61)sd-zz kqv ay:.w shows five identical resistors connected in a combination series and parallel circuit to a voltage sourczyvvasq1d z)wkd:6 .-e.
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 o, nk1i o3uxsukdbrn-)-x ei: z)y-m0in a combination series and parallel circuit to a volt )-iekx-z3nruisu ono k),:d x-b0my1age 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 )u-fq/l ; 3c7 dbyhmtv suw f;n0;exy0 are identical. Which bulb will be the brightes;u)/ m ;0nwuseq7;h-bt3c0f v yfydlxt?


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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 ammeter, a switch and three resistors are coh3t zynf*k /; 8mkd2(a wp5blunnected as shown. With thaz2(* pyw3b ;kf5l/8 khmdunte 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, an ideal ammeter, a*v-auzxb(p m:o6x 2n p switch and three resistors are connected as shown. With the switch open as shown in the diagram thepxum(: 2xo6az b n-pv* 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 resistorsm-)dzn qdbhe3z*u1u /b16d f2mc npq0 are connected as shown. With the switch open as shown in the diagram the 0uqdpzm bh mufq )d1end-6*cz2 b3n/1ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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