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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 current exists in the metal resistorpf , /pvgwb(e/mi 5v9n connected to the battery. Which one of the following choices best describes the direction of//vnp5wf (biemg9 ,v p 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 in6 k,,ix+-k n -manpqzr parallel, the_________each resistor is m-k qnrp-n zi6k,xa+,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 ty17)ca)*x xe 9lmp36dkc qntd hin filament wire of a lightbulb causes the filament to become white hot, while the pedm1y96 catkl7x)c *3)qdxnlarger 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 lights are being replaced o;h3 pt - arcb l7q(hz/0kzcbe0i7i/rwith LEDs. LED is the acr7bi z37q0-l ek0p carroh; b(z/i/ cthonym 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 has (c1 b hizzl6-k) x,qaulength L and cross-sectional area A. It is to be placed into a circuit, but it firskblc1a 6 qx) (zu,-ihzt 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 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 ofhdnpduq2 :d5*o ik0r) gsp6 7mn -y8*zo*d mkq the same material. Wire II has twice the diameter and twice the length of I. If I dnqphs82*n:6d* d50ik7) o dm-upg kr m y*ozqhas 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 samgeb. ty;ge4*rpr a2+ ibmki n*oe;.l.e material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a re+igni4leegb 2.o;r* .eyp akr;bt *.msistance 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 radiub(p d nd39or2au8ok4e4j l +xss 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 bepuja e2xdk39(rn od b 8l4+s4ocause 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 decideqb( po)w xa0.dpuyy4,s to modify the filament. How should the filament of a lightbulb be modified in order to ,dqyab0 )uoyw .xpp(4 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 lenspk qy*/44l 2 ;d.ul m 5.mrj3t gzrgj)cb4walgth and radius of each r;. lgwjlta b 4/.ykpdcr2mm l 4)q*zrus453g jesistor 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 resistanck i,lqw;lg- m9e R, are connected to a battery in the following way: “Two resistors a; ,lwi-q9mglk re 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 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 thel.hyfpts( d0i1c cl5 * 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 voltmeter reading issl05h.cly*pfd1i(t c 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 righthh b9p6a tm+vsw)vb:q2o f8ufv6 r01h. The three bulbs 1, 2, and 3 - represent9h )q1vowvmb6 +fb 280u h6rpt:afv hsed 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 rc aruw)qt- vo;bm:rrefix4 ,/u1+h/ circuit at the right. If the current in all three resistors is equal, which of the following st/irf, -1ur c+h:/ w4 tb) r;rvaoeuqmxatements 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 composepqho j8 3jz+:t3d ofzymx6o-t+ 5 cu+td of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbduth:m+ q8j-oo o xt 3+cfpj65 zzy3t+s)
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 t8uik:1s )6wvk avf.lu he simple circuit shown where resistorsau8l ku1)v vwif:.s6k 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 coo,g b+ b,,flqqr(xu: ja,o p ayim/:d:nnected 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 following choices best represents what is observed(ub,a:+, /:jo ifd:baqy xmqg,r,ol p?


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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 through the idh 6tp37n ,ialaentified resistor in 5 seconds once the circuit was closed?t pl63h7an,i a


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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 fo:t)8tgxdt *uv36pzt n llowing simple circuit have the same resistance, x)t td*tzv 8nu6pt:3 gwhich 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 through thntw8- pabdg5ifonc7+ hh )/:))alf wbe 6.0 Ω resis7 ht)inc)wh5wg dp f/nal)bf8-o+b:ator 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 couxelzzo7 8 dn n5f*uyc42pb1 e/3vnx0nnected 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 power. What is the voltage acrob y* f n d8xel7 zpx1uve34no/0zu5cn2ss 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 t(gyt.b 2fwo 3ybh+f7mm2 7t sio a battery. Suppose R1 has 2V across it2tb+tf3( yfg 7hm.oyw b s72im, 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 volt-(z3 06skzztxx)g -x1hsr f pfs. What is the maximum vaxhzfzt)-sxs 3g1 (60pz-xk fr lue of the 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 o8yr52.f5k.mne tcmu qf a 60 watt lightbulb designed to operate at 120 volts5q 5.f.y tuecmmnk2r8 ?

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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 resistor th28g3 l ilvcw9tat is dissipating 36 watts of lc2tw9l38v ig 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, 6y7vrtz ;h: l)b00 watt.” In normzb tr yl7:)vh;al use, 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 5dhihty 3zac *+ q5v-ffollowing resistances could NOT be produced by a circuit containing only three ideyqf5 h-h5vaz3ict *+dntical 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 o *tb hzb6esc5bt*jl1)f the following equivalent resistances CANNOT be produced using all three resbcht tl* )1s*j65b ezbistors?

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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 diffe c 7hh2ng()h* c4)lsxlre4zferent values 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 )xh2 eeg c) sl4*7fznlhc(rh4 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 tohyl 5kvzo5c2sf.9v a-jn*z, qe,p .tt a battery, a total power P is dissipated in the circuit. How much toz.t skqh9,. ,to5ac nelf2pz5y* vjv-tal 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 pfhi/y)ov 909s lolor .arallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistance0l9 s/ o rvo9ioy.fl)hs 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 resistance of 12Ω when oq ,sjtz 9*:t no:mya.i:xh c:hperating at 120 volts. What is the minimum amount of time that it would to*mx: ant9 :h :i.jths:qcyz,ake 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 resiiszx 1d2zeazgrk7/,3q(i ,e hstor that is dissipating 36 watts of pzd217si eq(eaz xg/,, izkrh3 ower?

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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 whentj p) k6sn9gpap1uy 57 connected to 120 volts. If the price o )71 ygk ujtan56spp9pf 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 cq3 ) qau;x *,fbn)nwohow much would it cost to keep a 100W lightbulb lit continuously for 1 yearnbcuaq w*)n ,fq3 )xo; 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 curresnt. g..jt me)nt of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the re.m.. tj)etgns sistance 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 500f)jc81w d d3eq 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 number o13 d )cjf8eqwdf 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 circsat(+ /wghli3 uit a +/igsla th(w3s 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 connectedtut) e5hqefjmk)w 3 65 to four resistors to form a simple circuit as 6 ej5))3u tw5ef tmhkqshown to 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, wx ;*o8(y*ztpf9o cfdan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagftc z fpyx*(wo*8d9o; ram 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 idea5 /cynz037 qsyr l97u 2dwsyaxl ammeter, a switch and three resistors are connected as shown. With the 9s3 lq52sxrw z y/7ay ndu0cy7switch 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 swd9i orq tpp0p8 g:7;aw;pxz.litch and three resistors are connected as shown. With the switch 8 d0g : a li.prztqxpp;ow7;9popen 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 equivalen rc.vqw9:*y ddt resistance? Assume that all wires are ideal, the battery has no internal resistance, and a9vwc*y.rd: qdll 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 t n4md 2u onp0;ekguvhaltmf)/30:j0ro the right with resistancesm rfkp004h;)amo2 g juel:tud3vn/0n $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors4l muw3rpm5/c -pm(uy connected in a combination series and paralwp-uu lm(54/ rcmmyp 3lel 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 slj itro42,: iwhows five identical resistors connected in a combination serito :i24 jwl,ries and 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 circuit diagram, all of the bulbs are idt 4zq wtv,q6j2entical. Which bulb will be thej2vt qz6, 4qtw brightest?


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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 idrh esdq v20y9kr*)g/n)f tvg 1eal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 atyd 2q0v 9r 1k)rgfvhs/eg*)nmperes.
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 resistors ar ph 9b-w5+ z0:-y*cdij rtuytae connected as shown. With the switch open as shown in the diagram the ammeter r 5a*t0p+yuyrdwj i-bzc9ht - :eads 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 batte-m3c5 fa n4tdfry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amme4t 3m-fa ndc5fter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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