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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, aue2*xyv )(w ban electric current exists in the metal resistor connected to the battery. Which one of the following choices best describ wvy 2bx(a)*eues 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 ixb. yq lsx;h 9d+aa*r(nki/s4 n parallel, the_________each resistor is the samesx(+ika9ay4dqb nsrxh/ . ;l*.

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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 thrj 1,(21y(mj.sh 64tnwp7p zz xvdfuxnough the thin filament wire of a lightbulb causes the filament to be1hmtj61( 7pn(y zsnxfwdz u,jp2.4vx come white hot, while the 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 ligp5oo(g.5 h* . tifqfoshts are being replaced with LEDs. LED is the acronym for which one of the fo ft(pg5.. oqhioof*s 5llowing 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 has length L and cross-sectioni 4:v rajz s+(ryibjkxwszr(27y6+s3 al 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 thej(ayrz j3 v:+ss+i 276z 4k riwsrbxy( 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 wireh;ukx v b+24 al cylw.jaj3g09 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 has resja. +4 0kah2; ylulxg3jcw9vbistance

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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 of93msg 1w 1joxtw zw-gh*f -el1xz1 -vh the same material but has twice the diameter and half the length of wire X. If wire X has a resistanc*extzgs- 1mg-1w-hzw o 1 9hvf3w1ljxe 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 ;lf*zxg-ne b ,piece of material is then drawnb-ngx; efzl*, 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 brighkv f.)ms (;cmy1bx2npter 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 a given vv(2yn1fm cp xbm.s);koltage?


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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 len(v oqik6lb6ws8k+bq t-g j,l)gth and radius of s, lkwj(ibq6b l+ g6to8qk)-veach 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 sw fquk)7azxc/7/j0w R, are connected to a battery in the following way: “Two resistors are x)z ajc0wwq7 sk/7/f uconnected 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.” 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 voltmeterlaybmro5g. n)e/i ,)owr/ tw4 in the accompanying 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 volabo r.re y/t,w5lmn) wio4g)/tmeter 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 sho; k:qwzdg yxz),p4 62 twvkc1twn to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagrtq,v1)2p y z4 ;kwt 6xcwkdzg:am
- 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 simpl n2pz akfh6i)9e electrical circuit at the right. If the current in all three resistors is equal, )6hfai2k9z pnwhich 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 a 3y0rje*) cluvt right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulb)j* ylv3euc r0s)
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 NO6rsksi.za)n +T true concerning the simple circu zas)+. i6krnsit shown 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 i;r-,b m04h)xy orfwwv e: +faca2s 9nen 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 9cb)+ syaxhav;r:w,e rw 2e m0fn4f-oone 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/a.rb f7gca-r pass through the identified resistor in 5 seconds onc.gr-rc7fab/ ae 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 resistowxyq,iq.jh0ze9m h97e crv-/rs in the following simple circuit have the same resihcyz7, erjq9hx-/ 9 imv w.e0qstance, 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 diagram, the cur8jnom8s1-ysbj *umo. rent through the 6.0 Ω resistor is 1.0 A. 8jy*nso.u -b mj1 om8sWhat 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 arx6dv .)mg0rbdx1.wd q e connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 diddxq r0wg.m.6bvxd1)ssipates 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 res*;s) m 3h+njm: jkwlybistors R1, R2 andR3 are connected in parallel to a battersm*kn:jlw) 3mhj;+ byy. Suppose R1 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 vf0 2bghlgas0 3olts. What is the maximum value of thea320bf gs0hg l 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 6lnomn7h nux6)d .+7*fcz hs k;0 watt lightbulb designed to operate at 120 volts?s nn+ )nzhf.*ohd;c76u mx 7kl

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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 /hca qnviq )u9n(-t2cbg :yf4resistor that is dissipating 36 watts of p)4cvn/-abyg9t uq n2 :qi( fhcower?

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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 moffbd ed4e xkl*-y9q :jl4.*vgz)4yaarked "120 volt, 600 watt.” In normal use, thx y*o 9zvdqel*lfd)y e jbkaf4g4 -.4:e 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 s4jxdfz oibsf d (s )/2voe l2a 6de;yb07+v;vbe produced by a circuit containing only three identical 6Ω resistors?oalvoz;f/6; 4s(veddbiy2d0eb s 7 s +j2) vfx

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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 equiva+wms.ktsb/1gd- rg9qr5 j )v fmc8wc:lent resistances CANNOT be produced using all 95r+ /d:v8wgfg tjmr )w-ksmcc1q.b s 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 connected together in dsx/nkdb :j cb-,6 9mo 4n/khdaifferent configurations. If all three resistors 6x4djkahb:sdb ckmo /9/,nn-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 batterkhwsz+i 8wc5q--l3t)* iw zmx s5a 1day, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected iczad *a5ih s-85m)zk+qwisl3xtw w1 -n 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 dbm,.an-gj)-g t n(apin parallel, the equivalent resistance of the combination is 5Ω . Which of the fog)n-jm(dbga,a - p. tnllowing 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 suchlx61u i9 gna 3gri7;dn that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it ru39di6lx n 7i;ang1gwould 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 dissipam3iky(vnou2ok: 3t *s ting 36 watts o3 :vysikk uon*2om(3t f power?

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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 curraaxas v8kt 1h4i: vitb28 zava o..e4.ent when connected to 120 volt. i84bhvake8v .a2o.x:a v 4atitsa z1s. If 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 w dz80 b4ky-4trk0f+oi 6yhjerould it cost to keep a 100W lightbulb lit continuously for 1 year at a rate4tkr68j y+dr0-0fb i ok4zhye 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 u25d*y4czeb w:y+wkg through a lightbulb results in a power of 24.0 W associated w2w 4ck5: +uydegwzb *yith the 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 of siy5 c p7lb:gu* fqq.xgs9 -fx0ix 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 maxim :70q c -u9g5ygpsff.lxiqxb* um 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 vro;ap98jf ct i:aq6 w04/ zccconnected to four resistors to form a simple circuit as shown to the right8c: zp46vw/ac a jq;o9r tcf0i.
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 i-)klkbxz nuif y;07f ;s connected to four resistors to form a simple circuit as shown t-bnzlx)k ikfy0; uf;7o 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 resisto) :stgxgd 3ui v-i.ra2rs are connected as shown. With the switch open as show3 tdiuvra:x gs2.) g-in 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 resiseyajs85 t:d7 ytors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.a8sd yty ej57:
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 uzp y+dq(tq y:q2u;6 zthree resistors are connected as shown. With the switch open as shown in the diagram the ammeter zqq6 dzyup:2;utqy (+ 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 equivale :d, 3 7u dl;n)i0bjlwk. embhko:l0tknt resistance? Ashlw)b:0 . okuk dk 7mdljlnt,03:i;ebsume that all 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 resistance of the circuit shown 9b 6rjvvib l)qh7h* u,s6 bfo4to the right with resistances s)fb4 rvhb6 7il6,9*jv uh bqo$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors connected in jk e8-f+uxum- a combination series a xuj-mke+f u-8nd 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 showqmkz1 9uk,tx j fecu(/5 7xsxv 2g;q:gs five identical resistors connected in a combination series and uc ukeg5:q2 zk7xm,x9/qxgj stf;v (1parallel 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 aryw4):-kep r(dvrg lq-e identical. Which bulb will be the brightest? dqkr4p)l(- e -grwy:v


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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 6:it/9kvpr a yare connected as shown. With the switch open as shown in the diagram thyp6ar t/k:i9 ve 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 am 67r.l wmp1ua tm/uf3smeter, a switch and three resistors are connected as s1 mws.ruulfmt/ p36a 7hown. 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 sw9+u5cy 1lyu*p gwmvz8itch and three resistors are connected as shown. With the switch open as shown in the diagram the ammet9uyp w+lmg1*85c zyv uer reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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