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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 met5i,s82;gsi prj a 3kjtal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and t58 ;3rst p2igai,skjj he 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_________eachc y(1;nbo at9q resisty1q 9no abt(;cor 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 thi*acp(wv 33jja wx0 mu9n filament wire of a lightbulb causes the filament to become white hot, while the l* xv09w uwja 3(3jpcamarger 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 aree qyz.vzn4a8o0u ip 6r66 )mnc being replaced with LEDs. LED is the acrony6roinq. 06ycpu )4az8ze6nmvm 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 graphite8et:5u we lnjb89wl .g resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half95t.we8el nug: jb8l w 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 of the same mal *5fyk bcg8,cterial. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has rekfg 5yc, c8lb*sistance

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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 but0 crp4g0,waei has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have ai0c 4gpr ea0w, 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 matxfu:l*e-g6 lk erial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becaux: gll*fu-e6k se 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 dd6b na:r4n oa5ecides to modify the filament. How should the filam rn5a46dna b:oent of a lightbulb 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 resistors arip ,8/h4exq8a-kcp vfwks 04se made of the same material. The length and radius of each resistor is: p-seh80 /ascf,x4k wvpkqi 84
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 resistorsgnm1m7.8g4l wa,yyd0 q. j zvh, each of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. z7qdvma8gnyg .j4h w,y l.0m1This 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 b;ezhv6.zfo ; in the 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 r;bez oh;v.6fzeading 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. qp8dh(achdb6 gi4 u:)k :,dvsThe three bulbs 1, 2, and 3 - gi8ph abd6vsdkdc(:: ) 4,uqhrepresented 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 at the right( iz* y-5ju(7 3vbbgij 9apljo. If the current in all three resistors is equal, which of the following statements j(vyiz lb7j9- *jbaiou3(gp5 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 compo1viik 0/.qpj ilwk//xsed of 5 identical light bulbs and 2 flashlight cells. Which bulb (orv1i/0wlxk k/ /.iqjp i 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 i(-wic6cu y.m9 4 n/pghnm9am2.w zkkss NOT true concerning the simple circuit shown where re4yhwm6/g(.i.-9z2 mc cw ma9nsupk k nsistors 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 seriesbq -df8o 3nk8i to a battery. Bulb X is brighter than bulb Y dqknbiof388-. 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?


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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 5jv 1hj d(qzp zn7,av sl.(6pc5 secondsh7dps1 cj,j(v.lzzq6 5a(vpn 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 i/;l, m)feiq7(mppkopre54kresistors in the following simple circuit have the same resistanci m)e;5erk pkofi74/,qm ( lppe, 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 accompanyi 90nkjcc83oii;bej8s ,)u dbnng circuit diagram, the current through the 6.0 Ω resistor is; 38)j,08iks dbjunb9ecnc i o 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 series to a batb5 eav 5hl v k7vn3/wkdh;e*8vtery. Suppose R1 carries a curre/5hnkl ak vdvv5w3v7ee*;bh8nt 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 a5 .dsm/ dbhzv,ndR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the cms /zv5db d,h.urrent 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 rt s; mz(yy du;za1xr+1ated 1200 watts and 120 volts. What is the maximum value of th yamst+ ;rxd(;11zzy ue 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 of a 60 watt lighahrio *-1 ilg1do. 9phtbulb designed to operate at 120 volt9*od1ao -1rliph.hi g s?

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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 that is di4c ud*khlxqd( l /j*:yssipating 36 watts of power?xlk : duhq*(d4l*cjy /

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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 xy9 yj+j hp,y z2a1my2a b/tp2press clothes is marked "120 volt, 600 watt.” In normal use, the current in it z2x 2yap9yy 21t+j/a, mjhyb pis

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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 circu;5xuyshge5*3a a p+ tzit containing only thr+*shau5tz 5agxp3 ye;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 Ωwhl10jl an, -t resistors. Which of the following equivalent resistances CANNOT be produced usin1ln-la,hwj 0t g 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 vyvwg vqy/ :*p,alues can be connected together in different configura yvwp:g*yq,v/ tions. 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 resistor is connected to a batteryfs)- tmi-x)oc, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit i)m tx-)csf-o 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 resi+g 5pvwi xpu1;stors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correcv;i u 1w5gxp+pt?

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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 dex dad8 j0v(id71 g,anhj/2sm fsigned such that it has a resistance of 12Ω when operating at 120 7ha8a2gmd /0 ds1,v j fnxi(jdvolts. What is 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 3+ w c)yhqn8k6,ya;d bg6 watts6cygbhw n 8ay+,;q)dk 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 c pi zr0xhen()d)-gcp0n1rf*l urrent when connected to 120 volts. Ifn()r1zip npxl) *rc 00-fh edg the price of 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 how muchxd6d6/fxf2 nu would it cost to keep a 100W lightbulb lit continuously for 1 year xxn2 df6dfu6/ 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 oe8x pf:k55 zpgf 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 re85e x fzkp5:pgpresents 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(7 w*fb;4 tna4 1sc0kykhxqir family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a singlws(yrfb0 t;qn4a 71ck4x* ihk e 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 tkkwz-ed8n f 4(hs2n0yo four resistors to form a simple circuit as shown to tf- 2 (4n zd8hws0kenkyhe 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 clzvkbd1og 1)b-sqpx(s05zf8onnected to four resistors to form a simple circuit as shown sq l1b(v pk)dz xzob0-gs518fto 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 swg 02zg(qumx n+la9i c6itch and three resistors are connected asl mggx(c2 qzn9 +6uia0 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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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 resistors1 z(8yyb4q uri are connected as shown. W4zyr (bqu 8yi1ith 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 +-o h;qfb;cat ox8 1w x(kiifa 5wx*n0ammeter, a switch and three resistors are connected as shown. With the swit t;h 1 wqowan5f co0b -x8xif*i;akx+(ch 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, whaty)0+g/cm br xff:uik6 is the equivalent resistance? Assume that all wires are ideal, the batterk mx+frf)uib 6/:y g0cy 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 red3 /o zgb-lxh+sistance of the circuit shown to the right with resistancgo-d3l zb/x+hes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combifqlrb. s3. gv1nation series and parallel circuit tf.g3sv q blr1.o 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 ;w6d4lmtphbba e6+* u 7gst2m shows five identical resistors connected in a combination series and parallel circuit to a voltage source.ba2m6*td tg4 7shelmb+w6u p ;
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 diag0r5 m.4/jxyi+fobq xb)ccm 1gram, all of the bulbs are identical. Which bulb will be the br5 0+xbbm1rcx)4gyqifj mc ./oightest?


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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 k/k*7 /hve1c .n cpnnn3yzc8tand three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0pvn.k/7/yn nc *en8h 1ztk 3cc 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 res31 wqinfl7o f,istors are connected afq3,l7f on i1ws 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 ideal ammeter, a switch and three ra kg )j/xxe5a+esistors are connected as ska)g+ e/5xax jhown. 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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