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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 exists in the metal res4syqqqrmabb8fta4 t6g-g0l*d (;po dxtz7 *7 istor 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 field throug-7*0 rzqg7t4f l(a8m*b4yqgxpb6doas ; qttdh 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__9ced.aslx 2( g/(iv uq_______each resistor is the .(g /v(isa9xl dequ2csame.

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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 througheij4rqwd5k9-6 x*d ha the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connectx*da je5r6i4wqd 9 hk-ed 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 householn -hda qnc(0xup bfu0vp3e2 2f/lpr39 d lights are being replaced with LEDs. LED is the acronym/2pnu apulxn0d p 3v029e3 fqf rc-h(b 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 length L and cross-sectional o t5ht: b lcby3p+ (6w.l3evsxarea A. It is to be placed into a circuit, but it first must be cut in half so that the ne5b.ls(w3tp h6 e +3voctbyx:lw 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 q9n 8k8 9ueldaof the same material. Wire II has twice the diameterqel9ka8ud8 n 9 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 t+ oo1a:nnlmd5 he same material but has twice the diameter and half the leng:oln+o1n m5da th of wire 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 has length L and radiusi(ev;b7)m6qx*m8-m b y qmr8xxkm 3pc r. This piece of material is then drawn so that it is a cylinder with new length 2L. Wh6mvb q)exprmqx;b8-mc8*xy 3imk 7m(at 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 brighter light bulb. He deciwy +2xvl3s; uades to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more lightyls +; u3a2xwv 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 m,q,w l r 3uz4qnm6c0eiaterial. The length and radius of each resi,6l,w4 qz m0equc3nristor 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 ss3d4h7j8fhi 0 f2mv yR, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistorsd82s yf40f hj ms3vh7i 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 the accompanying circuit diagram has internr02e m6vb,r:w5 y kcldal resistance 10.0 kW andmrl,c6erv: w5k0d2b y 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 circh*nqpeaz -72zuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in thep * ane2h7q-zz 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 right. If the current in al io1512 u.rxmt cwyc4gl three resistors is equal, which of the following stat54g coi .r1mut 2y1cxwements 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 repreddpo w/ffq -:,sents a simple electric circuit composed of 5 identical light bulbs and 2 flao/: ,-pdwdfqf shlight 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 si; npd*1sknn g33b.t8fb*orfv mple circuit sh f8*k *3fn;s n1r.b3tvb npodgown 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 anva/; ztwk1b,oh x yz57dY 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 connected in parallel with each oth;bz5y x1,v7 k /zhoawter 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 will pass through the identified resistor inw wdg 2- xcvaqo06q-d; 5 owdxq6 w;-qvd-2a0 c g seconds 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 the following simple circuit have,*;y xkd f.qfb the sa,f.f dxqb*;yk me resistance, 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 x:syx9+lfmf o)0+g u 8wk,nyrdiagram, the current through the 6.0 Ω resistor is 1.0 A. Wrx+98 yyfnwok +m lug:,0)sf xhat 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 series to a battery. Su4s+tfx:6pw dq mfge7*b7a-poppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and Rf f:q4po+xwsm 6* bpadge7 t-73 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 anzk5 owj6yjal7lua( 0brq 8*4 jdR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Whaj(47l8 q b5z*kyw06oajr lujat 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 maximuave9w jk 0+ lsl:9ieb8m value of the currenakie 9:9+e8lb 0vwsljt 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 desigq679us 4x w+ek 2)km nqrxssgnb/* 6pened to operate at 120 vosp6)eme/xsxb q7kg q +k* n4s9u2wrn 6lts?

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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 thatgp(+5 wfvq s 4kh*ety. is dissipating 36 wa4( * f+ehwvqtyk.g5 pstts 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 ironaax us-aqllt6fk,k79fy -- g * used to press clothes is marked "120 volt, 600 watt.” In no *gk-xslt-6,a- fl a f9yqau7krmal 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 circuitvx / orwvbb6+2 containing only thrv+6w/ bvobx2r ee 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 resistorlypyl* )1l.lepv x0q1s. Which of the following equivalent *ll p01.1vpqyey ll )xresistances 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 in diffpy p38jf:ehipz;m /,i c78mgr erent configurations. If all three resistors are used in a circuit, how many different values of total resistanfi p88 3p,yzcme/j hp r:i7mg;ce 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 powemv)iz 9w ,mr(hr P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistorsziw,mr(h 9 m)v 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,rui;h9f gcir;d;n * zyq, :o5s having resistance R1 and R2, are connected in parallel, the equivalent res y, isdzu;qfci;5rgr*nho 9:; istance 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 thas30c 3r;i1ges f 1ru+lf5zzukt it has a resistance of 12Ω when operating at 120 volts. What is the flgsrzf5 +rce z3u31u k0;i1 sminimum 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 resisl +wk 1*kvv)ystor that is dissipating 36 watts of povkk* wsvl1y +)wer?

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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 cod9z6i fggt9l1iw8)ex nnected to 120 volts. If the price of electricity i )x gltdz89g w96ei1ifs $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 keep a 100W lightbulb lit contin gcmo6,ko,dsqx)q(/wm-.a gj ( i0mgjuously for 1 year at a rate,g0qg-wj. ) 6 ( /oaqio dxmgkmc(,jms 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 3aj2ut9sj3u sin a power of 24.0 W associated with the bulb. Which one of the followi2 3j t3juas9usng 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 compua07b6- qe;otrz;r+1gddhl lp ter rated at 500 watts in a 120 V circuit.pg; a0-t qdl;rr zbdo17l6e+h 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 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 xzrn m0) / m14ymcaw8tresistors to form a simple circuit am)41mwm 8azy c/rtn0xs 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 connected to four resisi tiv160xcacu9xd7 nw pw:a:7tors to form a simple circuit as shodw cp9t i1ncx7a:i0x7 uav:w6wn 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, an ideal ammeter, 0 0lgi4n g.r6c9lwdjoa switch and three resistors are connected as shown. Wl d.6g04n9gcl0ow jir ith 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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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 c g+wiy1o;f1c0lb4bil mi i,-wonnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amw11 y+gbcm b-i4wlilfo , i;i0peres.
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 elxx(*6 1d+hptai /rmm; m f+dand three resistors are connected as shownf+x1tr; ed+mmia( /6hmpl* dx . 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 resistance? 7y*(waa48qbtv hj j izko5 c/0 Assume that all wires are ideal, the battery has no internal *czqtb/5vaky 8ojh ia 0(4j7wresistance, 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 cfyp q 1 .fasd7)q4p3npircuit shown to the right with resistanpf1)3dnf 74p sa yp.qqces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a ygq. d6h3j,gicombination series and parallel circuit to ij63h. y,g gqda 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 resid xuo +ofry ,+7f19lcustors connected in a combination series and parallel circuit + uf7 cx,+udyo9of l1rto 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 +v)gvtjb l rtc7- f -y m6bmr39im+;wao) y/fs of the bulbs are identical. Which bulb will be them- 3m b+ mvaj)cyg /;vb9tyo+l rs6rf-t)fi w7 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 ideal ammeter,u+.4r9q bdz b 17wl2ha fbv72pdmqb: j a switch and three resistors are connected as shown. With the switch r 1dbd 7mzqhj f :pvwl97 2+b.b2u4abqopen 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, anxr0a1)ddqn 1e:ezwz.d 1 d0rp ideal ammeter, a switch and three resistors are connected apeqer:wdn .z 01xd11a0)ddr zs 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an wfbfs/*bdo.dt8 jpi5 6l*sh0 ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readsfw**sb/dhi.odfbl58 0 6 p stj 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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