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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 elem9, wzaiomi40ctric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resam i,o m90izw4istor 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 c-y+q b: o8q+ q-s a5omk9nxyzyonnected in parallel, the_________each resistorqyk+n:+ z5os a -b 8q-xyomq9y is 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 thrktzu8*3az;v6mc kt* e filament to become white hot, while the larger wires connected to the lightbulb remain muk3;m8k*6* czvt uzr atch 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 ;dy xpophq(23replaced with LEDs. LED is the acronyyp2ho3 (p;x qdm 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 grapzmz62 gtl7sx ay,mwrbl/e *7.hite resistor 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 os */lyzlztmmax ,egb762. w7rf 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 wich;/hd4zg+/y1), wp u.cfb5ue g u0aibvfo, m re II are made of the same material. Wire II has twice the diameter andvpgi. ffd1 b,u5cue/gyo4buz 0 /w, )ahcm +h; 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 but has twice the7qx)k6vcq p af.5u-uo diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resixqqfokc. u-pv57)6 u astance 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 of material nt)o(i k5amm. is then drawn so that it is a cylinder with new length 2L. What happens to ta.)knimm5o ( 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 bulb. He decides uq-n p*jsc k)s4r q-4eto modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given volq4scsnkrj4 e)- qu-*p tage?


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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 r /ip23zu* a /,9bgvbd5veszz vesistors are made of the same material. The length and radius of each resig z adz5vv92vueipbsb3,z //*stor 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,p oe4+bf; xrf5 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 resistors is connected in series to a fourth resistor.” What is the equivalent resistance of this arxfo4rp b +5f;erangement 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 internall1yj( s/3 fu0w:d zcym 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 nearly:m (s:wy1uz /c3jfdyl0


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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 tofaj +p*) juvgo7r9. 1gb hzky( the right. The three bulbs 1, 2, and 3 - represented as rebo)v .pk +(7yf a9rujjg1*gz hsistors 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 rightj,io,5 hbgk+ r. If the current in all tk5 ih+jbgro, ,hree 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 electric circuit compo/ plvfum1y cz-.p(o9hsed of 5 identiczuv1f9.(ly h/- pmopcal light bulbs and 2 flashlight 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 statements is NOT true concerning the s,ty cvpi7s9 bvlw52zlc aa(2 bdnx)5 )imple circuit shown w it57b5b a dl2)x9y lvv2,pcn czs)w(ahere 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 31 diep:+ue rlX andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are conp3ie1r e:+uldnected 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 uec2:ie.b xktmci*.b*wl6svn*x5v5 will pass through the identified resistor in 5 seconscui5e. bx kv*6w*b5iv.nm cxe *2lt:ds once 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 ynho4fxx+ z2, the following simple circuit have the same resistance, which would dissipate the greatest pow2hx,y xz4fo n+er?


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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 current throug*uu6m-wk rs 0bkquk8 os5o,(ah the 6.0 Ω resistor 6uwoo bmr *kaqu(sks,0uk85- 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 are connected in seri .eqcbfy*i7wmce4 ns 1t+lg 2-es to a battery. Suppqesmgebwl 1t2i4c.y -*7c +fnose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, 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 ft ; b9kisuaxqr950 6presistors R1, R2 andR3 are connected in parallel to a bat ktri pqa x9;b950usf6tery. 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 rate 7+,,ntdtshrep bs9j1d 1200 watts and 120 volts. What is the maximum value of the cu1,dpserb t th+,7jns 9rrent 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 designev lw)vs5a :kxew( 8v/qd to operate at 120 vo: v5ka/(w wevs8)l qvxlts?

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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 9+l1t l*4w:svjnpy7sulg v8fa 4 ohm resistor that is dissipating 36 watt+ p9gsjllf v: s vu8wt4yl1n7*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 iron used to press clothes is marked "120 volt, 600 watt.” Igy+-m-tkufh oce+te0ecds8p . fc4. m8m)f2en normal uo8 c-24tfeuh f m..syk +ce08 meed+gmfp-tc) 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 NOT be produced by a/f1rpf js z4x. circuit containing only three identical 6Ω r./14f jprs fxzesistors?

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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 a c qm; gebow;j3-c2a8following equivalent resistances CANNOT be produced using all three re a8cgec;o-j2qm 3aw;b sistors?

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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 diffe i 0c0se00mql twr tpl)j.e:9krent configurations. If all three resistors are used in a circuit, howejmpw. 0i9r0 es:)tc lt0lk q0 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 battery, a tota 8lms- )-*7fbhqoi2rfxl xz 0pl power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are co-f8ix 2*s pllo)fhrz m7x-b0qnnected 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 z :a;m6woghl+.6lvb;t liks0 R1 and R2, are connected in parallel, the equi:lhl0 i ztl6vw ;; ok6.+abmgsvalent resistance of the 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 v m*4 jvly3+b-qyln6k that it has a resistance of 12Ω when operating at 120 volts. What i* lvby4nlkmy-vq +j36 s 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 g92* .gal8z jm6/icmro3 o vrbof5zo) waj.azgrmo /5o o*2b gc 3v8z mo9f6il)rtts of 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 he); hu3e7 w2sckjj3x current when connected to 120 volts. If the price of electriches7k )ceh j x3ju2w3;ity 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 howkh3:l xthic8( much would it cost to keep a 100W lightbulb lit continuously x t8i h:lckh3(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 resultsu)c.1a btwn x/be:alp i akw67zy0z+9 in a power of 24.0 W associated with the bulb. Which one of the follawc0 y.atb +: akl9wbx/np 1iz )7e6uzowing 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 six owns a computer rated at 500 watts in a 1o rk1p 3j7vb*qddle; )20 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 ak1l3r)jb dq vo;e7*pd t 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 bo v.7bh5kcoatm+l +i)/ayy6 resistors to form a simple circuit as shown to the riga oco7y5y b.ki+vl+) mah /tb6ht.
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 simi0 0z2u2ui rhlple circuit as shown to the rightui0 u2h zril20.
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 swit;/ qtq/g h1uk :wpuz png);r*lch and three resistors are connected as shown. With the switch open as shown in the d; k*t)zqnu/ /qwrg p p:1uhg;liagram 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 arl+ c e olbx(bd+1ksu (+ a1(l;ki)gnloe connected as shown. With the switch open as shcl1xak++)eb+( ldn(lkbo( i ;so l1ug own 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, ai f8 qqot-a68o vwkr:31rhn +f6yne (un ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rea3qr aou e+8n1:yv fi-w(ro66 htnfq8kds 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 7b3 gf ovvi i9:zypr k*qzry:7bl)y91 the right, what is the equivalent resistance? Assume that all wir iz7y1 9:z*prg fo)bvvr:yi9 ykbl7q 3es 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 sl df p4d3c3nedexcb0by ( +v0(k.gigl:82az m hown to the right with resistances d .e3 nemp:8 k0(3fld4xvg+bc aidb0 gl2ycz( $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idenwirglv;er; r0d9iw/lp d 39d.tical resistors connected in a combination series anv/9p dlw3 ri0 dg;;rwrie.9ld d 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 shows five identim96n-6jcx qypltp ( e-cal resistors connected in a combination series and parallel circuit(-c6ylqnp-9m ext j6p 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, n6+, tt2 6p ed:b.tea 8xgugyzjyt l5 en4g1;u all of the bulbs are identical. Which bulb will be the tlunttj64 g;yt8, x ugg21y:+ e .e6ezd5ap bnbrightest?


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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 resis 58izh) 68g9 pkmhvf*yuqq zff;6rng2tors are connected as shown. Withh q8z i68n f6qpgyg vm2)hrkfu*;z9f5 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, an 1ca5c( i xoullh;0:kd ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram thekhl :;(acud c1i olx05 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 tabc/,-q;c zon hree resistors are connected as shown. With the switch open as shown in the diagramn/;b,zco- qac the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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