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习题练习：.Resistor.
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 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 ex.1/g,d :xn aetrb jte5ists in the metal resistor connected to the battery. Which one of the following choices best desc ta: gn51d .extje,/rbribes 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 in parallel, the_________each resq xvqgowd2 2gl0 y9z72istor g2 wod2z2gy9qlq 0v7x 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 fi)4):v blhn-fhj q-6nd j y2tzht1 4spglament wire of a lightbulb causes the filament to become white hot, while th44nhdbntyqf -s ph:j)6g )tzv1j2l - he 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 lights are bgceaq9j 2w l61eing replaced with LEDs. LED is the acronym for which one of the fe6glq1w9jac2 ollowing 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 arey i8/ k:bf7iapa A. It is to be placed into a circuit, but it first fpb i7i yk8/:amust 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 wird8zk v2r(ll8p s-j51f mz 5biye II are made of the same material. Wire II has twice the diameypi k lmvljzzsr5 (158d- f2b8ter and 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 m l1e*; voga6awxk :bf-aterial but has twice the diameter and half the length of wire X. If wire X has akvax 16b;lw f-goe: *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 has length L and radius r. This piece of materi,tfc,j /cto9aal is then drawn so that it is a cylinder with new length 2L. What happens o, 9acj/ ftt,cto 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 wa1+4 icjfjxh fd( wae92nts to make a brighter 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 volthfxw94 1 cfd2j+ (ieajage?


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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*(kvr.r hfrt 1;8j41uwtd rpy resistors are made of the same material. The length and radp ykj rd(t11*ru; h48rfrw.tv ius of each 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 R, are connected to a batter k-vyu+in8lz3hca5g 0y 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 resisyguv 0znhk5+ - la38ictors 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 circuit diagram has e/z6p6cdmqv - jv 13fiinternal resistance 10.0 kW and the ammeter has internecfm 6/z3j1q6 vivpd-al 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 c:0+7nrqfe p 0fb lloc1c6z; yiircuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistorscl0pb +c6f 1rzilyn7e0 :;oq f 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 b z1 yq2yck6h52x(ypw circuit at the right. If the current in all three resistors is equal, which of the following statements must be t b (5kc ywy6y2x2phzq1rue?


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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 rfd62 ;pwam1f:r dprh6epresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight af66d:f ;mrpr 1dw2hpcells. 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 3jd 7e7t -ghuscdm+4rsimple circuit shown+j7r4-gdsmu th7edc 3 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 insku g/ii mtoo,pa6++2zy u+a/ 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 t/gop6 a,+ /auoutsm iy2+z+kihe 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 through the identified resistor in w.jy40x3+5uxdg u14n oywtqd5 seconds once the circutq5djdgnuo3y. w4w1 +x4 0uxyit 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 followingmi:/z5afzg6 u1 5ksgi simple circuit have the same resistance, which would dissipate the greatest pgk 6:izm /is 5uf1z5agower?


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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 t/df u*n/ fzr-bhe 6.0 Ω resistor is 1.0 A. What is the power supply vob/ud-fr f/*n zltage 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 con68 lpb,4 ro2 4q-ukzodlg zkm6nected in series to a battery. Suppose R1 c6mqld,-oukkr8 gbpl4 26 zo4zarries 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 resistors R1, R2 andR3 are conneygxo)6 ybnnl6y**c qc/ t6hhrb3m -g*cted in parallel to a battery. Suppose R1 has 2V across ngg3* hc6xncm6*t o/b b6lryyhy-q*)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 maximum xv1 chce/fj0n3 bqu8wyad1l.a7 t,;gvalue of the cuw 3l. c1fg/y;7,a 1dua8bnhxtec0qjv rrent 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 designe .:b4n-)0wquon+vz ; h2ijdfsth pej,d to operate at 120 volts?oq s; ):2wni zd fhn,j-0 pb4u.etjhv+

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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 rh1(3aq7a, r hae/uzkdesistor that is dissipating 36 watts of poweu1ah/erh ,za(d7k aq3r?

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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 cloth.x2)lgx 0 u envrp7c-ces is marked "120 volt, 600 watt.” In )v7p2cx u r0gex-cl.nnormal 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 following resistances could NOT be produced by a cirj r dx n)b*ob4oaq-o:bq+q d1:cuit containing only three identical 6Ω resistorsobqn*a:oj-bd)4dxb+q ro: 1q ?

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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. rsb79 iv l,du;Which of the following equivalent resist,rdb7; isu9vlances 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 can be connected together g :ht1c1bl)wgin different:gw11lghc) bt configurations. If all three resistors 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 r6 ph +(4m avrk9 b8tgtdzq9gd2esistor 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 resistors are conned4 abvr2gt6mp( hk9gq 9 tz+d8cted 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 auglf e9tg5/z1 nd R2, are connected in parallel, the equivalent resis1e 9 tg5ufzg/ltance 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 that 0 k4z(cr ad4)obsbrv)23 mjmwit has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that izo b)ak2mb)4 mv0(ds3cr4r jwt 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 k)rlw w,,cxw/ is dissipating 36 watts l xk)rwc,w/,w 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 current when c tk67c*+u0o)uvrdboronnected to 120 volts. If the price of electricity )c*+uvr0bork ud ot 67is $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 wou)yy5 hfdl sa2u1b.,zcld it cost to keep a 100W lightbulb lit continuously for 1 year2ya) dub5.1,f szlch y 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 results in a power o: - 9lsn(aj0evxc1rixqko -f ypo n,/9f 24.0 W assoc,rn aox0ps q/9n1fx y l-(v:io-jkc9eiated with 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 six owns a computer rate0p wto1qu*r5brro b/-d at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by 15u /wor-qbtor0bp* r a 20 ampere 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 c6,6dk5-b4g bpoy m inlonnected to four resistors to form a simple circuit as shown to the right.yn 4o 5bbil -kgd66pm,
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 ra;v/wd:upmqk6 s9*eto form a simple circuit as shown to:m/*w ;9uv6 qrek dpas 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 resistors are chfc3rwo 7f3e +hbjot *2,qf c/mky;h1ewm3 b9onnected as shown. With the switch open as shown in the diagram the amme23kwcm ef+jrmfyhh; ewo3f,qtb7b1 39*ch/ o ter 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,hu9)q:z 65cc um8zow h an ideal ammeter, a switch and three resistors are connected as uzzhwq5oc9huc:m) 6 8 shown. 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 switch and three resistors are fx/6 /tnlk 22e gj,dbjconnected as s 6jek,/f/t xl b2djgn2hown. With the 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 equivalent r7; nllzptyvc8ge)jotz6u *093 ,k u ihesistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical vi6;z k9 y,7tnhcztl83ug0le) oj pu*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 to th)fc;d* vu(lnk4;w jqg e right with resistan;cd4 u;*n)glwfk(qjv ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 re3 y8qj/zdw(/fhg ud 6vsistors connected in a combination series and parallel circuit to z/fd/3uhwj( gdvqy 68 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 5 m1kdwm1;rexv1;je jfive identical resistors connected in a combination series and parallel circek1;1 51 vdjj ;rmxemwuit 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, allju vizgh8zm . v0+s6i/ of the bulbs are identical. Which bulb will be thi/i v6g+hs umz8zvj0 .e 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 batte5ay4fjir;/( ;h,x 4dy hfhykb ry, an ideal ammeter, a switch and three resistors are connecthhyx5a4dy;/, rbjif;( 4 fhkyed as shown. With 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 ideal ammeter, a swl0-wl:buti * ulo+pm ;itch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetermp* bl l:;tuwl+o -ui0 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)7vz t- ,jpbhs, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as 7,)s hjbzpv t-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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