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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 (6 g h1o sgj z*/xat(qe;m-f d,)houizshown, 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 through the resistor and the direction of the electric f 1z(suia),e6o jthxhqdm- ( zg/* gof;ield 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 r1g7 zsws28 qtf+vq ,emesistors are connected in parallel, the_________each resistor is t1v ssefg+7zm8,w2qq 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 lightbulb4 j0qs(:auztwijzalpmn (s 5wi3g326 causes the filament to become white hot, while the larger wires connected to the lightbulb remainupis 6 j42qngj5li(w w (3azm3za s0t: 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 are0ho:) a1kggb9k wjn g8:-pvdj being replaced with LEDs. LED is the acronym for which one -j8 pkvd:g:01b)agonwg h j9k 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 has length L and cross-sectional y*3zk)s -dvw.v2p ralarea 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 o la*32rwk p-vzv)d.ysf 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 hb0reklv* uf.n8* 3 wtare made of the same material. Wire II has twice the diameter and twice the length of b n. l0hvf* tkuwr3*e8I. 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 x2x ujw s5ta,3diameter and half the length of wireasx2x3 ,5utjw 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 hasbtx78s-wrec1n4 tv nh2y kc 4; length 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 of this pxvn4; 1nwc 8-2yc7 4rbktthesrocess?

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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 to5./ ha v;jerti8xus-b make a brighter light bulb. He decides to modify the filament. How should the filament of a light;/h 5t8ba -x rivsuje.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 resistor2c ;ikxdxbipy5- a08rs are made of the same material. The length and radius of each xc50ab8- dki x;2yrp iresistor 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, are connected tohi*x ukh2q 3zmxy3;x:pta7.bzj0 h 7a 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 arrangement of four resisbj:yz .h; ua3a0x27q3xmk7*hixh tzptors?

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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 i. 3tk-3ncj0p0 o lfhovn the accompanying circuit diagram has internal resistance 10.0 kW and 03hck.-vnp l 3of0otj 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 shown to the right. The three bulbs 1,:v35 9q3 ug7jcytlmd o 0ufoa, 2, and 3 -mo :lvo73,5qjc fyu9taud30g 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 circuit 8z x6hi; sbf)* a jr6ds;e*xyxat the right. If the current in all three resistors is equal, which of the followiy ) *bixh;x*sarfx;8 6z esdj6ng 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 rv p8/tpzh1n iie j:;n3ight represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cet;izphn/1ep j8 3in :vlls. 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 simplen8(y0bc5 a,i)a b/(- ;zdq le whmzorl circuit shown where resistorabam(i,80ybeo5l zzn- )chq;l d /( wrs 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 seri4so1gy8q+cptgz :2r kt *evguo1++rv es to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connectetog pceqv*r8+o2+ t gku4vy1+zsr: g1d 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 wrdji(h i06 gvnt.-m w8x.) evrill pass through the identified resistor in 5 seconds once the circuit was clos 0(er xnrdjv.h.vigi -8wm6 )ted?


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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 skptjv zmd( go44 :ei d+b-0 w+- ,f6nusaqe3utimple circuit have the same resistance, whict,4-3f-b6d n v :jideuqkwte(p4 oam++ug sz0h 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 current t 7-ijf* wpwf +(ozo7eiubszi1v/f 2+whrough the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V?i7 *fvwb izei2uz so++ww/oj-f1 7(fp


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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-: gt u 5;+(lbtueslw4:m8wrv n cj*ec in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω,:rjlsc-u5g(*wn ;c b +ltutw48vm :ee 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 ing46kr * 2tz(1(wfhoskkf m 7lqibf4 x6 parallel to a battery. Suppf6hk2 1ik g47(ql*t bwzms(x f4frok6ose 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 volts. What is the maximumr.+m)rj3ngadwsg 3k l +e;6 ai value of the current j g. w6nkledg+ a ;m+r3ai3sr)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 ofu/ bunau .8pq9 a 60 watt lightbulb designed to operate at 120 volt8qa/.un b uu9ps?

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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 resisto wgn+m.xpc/u p .:r;bbr that is dissipating 36 watts of power? /.. nbmcrp ;:upxbgw+

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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.2j3(hpylgi9o+bn m-,fh8 t8oebzp+l” In normal use, tymho t++( zbfo, e9p2plnib8l 3hgj 8-he 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 resist)t1g*6y2 vkc7 i0tnt q a,h;h xwels7hances could NOT be produced by a circuit containing onlagn ;*k61)wxhtvei 2q,s 7ytthh0lc 7 y three identical 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 t2evwgb/6,*e igy aoe(he following equivalent resbw ev( aeo6egy/i,*g2istances 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 bump 0*rtuvfh8br-wa8;l,9 bv2em x; can be connected together in different configurations. If all three res;fxm8;8vpub9 -h rbwl tavr e2m, *bu0istors 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 battery, a total power P ic rv8956hefiw s dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same batter 8irh 65vw9cefy? 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 resistorssa lwjm j,j 2l(:8afc:, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which s (ja:l,lj2cjm:8a w fof 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 desir* j03-j(( ruwvlv:jjduza t8gned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time thauj*r w r3a:0-dut vj l8j((zjvt 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 res9l4 *5cne q efym:ikd6istor that is dissipating 36 watfi5n4 9ced:k y* 6eqmlts 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 heqdf1rleln* y o4 :w1p4ater draws 13 amperes of current when connected to 120 volts. If the price of electric: wdn4y eqrol1 4*pf1lity 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 n-s-yud..mzz0w l wm.keep a 100W lightbulb lit continuously for 1 year at a r. mzd.wslumz.-0wn-yate 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 power of 24.(3x2 f fy:amrffegi3.0 W associated with the bulb. Which3meff2ary gfxf 3 (:i. 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 ofduk m9kk-,knz6h )(cwc; ;mw r 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 ampud crn;k)k kmk;cw6-( ,mzh9w ere 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 form a simple circui5y( , blsergeq689cfs t as shown to the rig ,q 8esrfs95e6b yc(glht.
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 con.zbl6 .3ixarjnected to four resistors to form a simple circuit as shown to the rig6la3.rj xiz b.ht.
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 i tq8 y9 hz1i0cux2(rmgdeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in th 9h0(qiuc zt1m gxry28e 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 5 b+inw3 ki6 t8c5bireconnected as shown. Wirii i5b3 w6tc8 bkn+5eth 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 m/uipi 7aps fsho(o4 * v.sy,3switch and three resistors are connected as shown. With the switch open as showns,si.ha y*u4pp ofvi 37om(/s 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 equivalent res x+57tfmvo,nlw-xb 6gistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors havem x6b,g7 tnox5wl +fv- 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 resistanc6 hju+cixx1 *ce of the circuit shown to the right with resijccxiu+ 1hx6*stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 be5, bjgsx v.8ri-uj hc .aaek*-low shows five identical resistors connected in a combination sb ju.,e c a.8rhkx g*-is5v-jaeries 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 shows five identical wd-r3 e6)vkebhiv,)yresistors connected in a combination series and parallel circuit to a voltagre)dhb y 6,iv-v3w ek)e 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 idenkj9 /l4.(y uacps7hjdtical. Which bulb will be the bright.7jy 94dascjh/ulpk (est?


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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 j*( yexh ,rk7uthree resistors are connected as shown. With the switcy*jur (he7k x,h 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 switch and three rcly7gx i6dk89 x0u j6wesistors are connected as shown. With the switch open as shown in the diagram thlxgix9dw76k 0jyu8c 6e 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, a7o8c5sww) cmqn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the aoc8w5 7qw)mscmmeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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