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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 resisto*u a6nx jadaak10. rw*mvji: 4r 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 electr:k v.n4 djjx aa*610*u awimaric 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 ccug 8/ -xf ov0hc-2jqparallel, the_________each resisox28-/qjc guv ccfh -0tor 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 t l0o .qhwzyr7.hin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to therw. oyh7.l0z q 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 hou 4/vy11v9.zc,* qvp. rkw it1o nngpnbsehold lights are being replaced with LEDs. LED is the acn,zypvkgq vpt.n. c1w *4o11i9/nvr bronym 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-sectional1sj/lp -rn 7ew area A. It is to be placed into a circuit, but it first must be cut in half so that the new len1pe sn7wr l/-jgth 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 material. Wire II has twice3jz s9i3wo+k-id mlx4 the diameter and twice the length of I. If I has resistance R, II lk-j3szxdoiwm +43i9 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 diameter l,hi5rqyk tou (gk 08l0:tu/kand half the length k ,ku/0 ktqg8 5h(iol0utly:rof 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 radius r. Thiym::uf4s i i7 5tsq*ehs piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this myfhsi4etu5 m :siq7:* aterial 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 hccae5s,3 ,qwp7odrk 2i +u+ gdecides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb producerke 5ad,gqiu w7+2,po h+c3s c 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 lenhgke329z qx o3o)z+le0 u mdj2gth and razg92ex)3ol 0k2 zd3jqem ou+h dius 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 conneju p-9pnunc om):d 6jx7eb/h/cted to 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.9/cbh -7)o/uuj6dn:mppj x ne” 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 cir6.w n rlx7b nmk0a/f3bcuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter0w k. 7b36bnnlf mar/x 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. Tq* *xqe w05l+htbx+qbhe three bulbs 1, 2, and 3 - represented as resistors in the diagwq0b bt l+qx5e* q*+hxram
- 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 el /rxt5 ksnonmmfd4-c pq9o069ectrical circuit at the right. If the current in all three resistors is equal, which of the following statements must be dk-0n4t 6c m99q nrm5xop/ofs 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 e(tdx+ a fc(af1-(gf wa simple electric circuit composed of 5 identical ligxfd wg+((af(at ec -f1ht bulbs and 2 flashlight 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 isx -0tx 0ihjs zm0,wv0s NOT true concerning the simple circuit shown where resistors R1,xzw v,x0- 0hi 00stsmj 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 ):z c)eku .otfseries to a battery. Bulb X is brighte.oz ke):uf )tcr 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?


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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 thr54rf-j zxeh jz r5h7x-ough the identified resistor in 5 seconds once tz75zr5 exf rhh --j4jxhe 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 sim:t1.ire ojbm :6 rhh5nple circuit have the same r.be r5orn6m :th jh:i1esistance, 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 diagram, the current through thec4rxi8au3)l 3uo )ybv 6.0 Ω resistor is 1.0 A. What is the power su b4yi l)vou8c)3xuar3pply 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 b: vbtwr*)pvr.attery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. Whabpv)*r.wv: trt 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 and+5:ks+olb.s+0 dz 4fmcdf bxv R3 are connected in parallel to a battery. Suppose R1 has 2 +zl+s:+vfs mkd405bbfdcox.V 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 coiq 3 sk zol +)oc2itb a7za4.l02tw0lkcl is rated 1200 watts and 120 volts. What is the maximum value of the cu)z7c4lk0c+ olw3 q t0soa2a2izlt .kbrrent 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 designed to operate :n0t0wyjph,lp b + j+ su x6y,watkj,4at 120 vj:j+ sy ubh0nky wp ,t,4a x0t,lj6p+wolts?

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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 ita4e:ccbhl a3y(hq *;s dissipating 36 watts of(h3a : qt4ae ;hlcbcy* 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, 600 w3w iyocn6+n1d:c z 8featt.” In ni3+68df nznwe :c 1coyormal 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 follep lfln aq+j;,.i--/ald+ ngtowing resistances could NOT be produced by a circuit containing only three i- ,jaa.lft+n /pqn;e-gildl+ dentical 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 tfnb bfm 3i0n7)he following equivalent resistab i fnb730nm)fnces 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 togevf 8:sdv8e473vnz z ugther in different configurations. If all thr suv8 7ed3z:fvnvz4g8ee 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 battef py:y:i8rn q2/hp .nvry, a total power P is dissipated in the circuit. How much total ph8n . r/y2yqpn:i fv: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 lb2(rc j/8t1p g 7uh blu4mpy(R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resist m u7(b14u lj/2pt 8glbrhyp(cances 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 resistam 9fubc( ke(by*:l7o,u z+ybv nce of 12Ω when operati 9y,cv*+ u 7:bmey(fubk bzlo(ng at 120 volts. 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 tkdw c.)x)9 j 4q,jnlqmhrough a 4 ohm resistor that is dissipating 36 watlj9.kc w)d,q)mnqj4 x ts 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 po +h, +/ccuab13 amperes of current when connected to 120 volts. If the price of ele cap, +bo/+hucctricity 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 t cxdja ce r,rc45zn;(8o keep a 100W lightbulb lit continuousl ,c8jrcr;xez n 5ac(d4y for 1 year 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 jfrz9kg o)-f:a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightb- z:gf9jkorf)ulb?

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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 h9sv6gu3 iq:*m,fpx xa computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, i*96xxs pmh:fu 3q ,vgwhat 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 ntd19j4o cj-b ly,na1circuit as shown to the rnd1 4oly9 ,t-ncj jba1ight.
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 foqdp cr*i 7e+,rur resistors to form a simple circuit as shown to the righ*ipcredq,r7 + t.
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 qy;tfnp3*hc * ideal ammeter, a switch and three resistors are connected as shown. With the switch opentpc f**n3;q yh 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 thw*wdw0 rs2bi9 ree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampi s*rdwb02w9w eres.
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 ar9d cngtaik7a7/5 hf l6l mj;/re connected as shown.l7tr/g;ki5f h9j/a 6mln acd 7 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?x )jlaoadzc65lirn uqz 0,93k1ua 8:p Assume that all wires are ideal, the battery hasca j5lnruql89 1apai:zku,6 )z0 3d ox 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 resistance of the circuit showfks fb7so c(/ (g5:ncdn to the right with resist(s /s:f f(ck5o7 bdgcnances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 pd:p 5brv/*bkjz 4 ,bb)wd7kncombination series and parall,kznk vbb: dp5d*wrb/) 4 b7pjel 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 resistorw3o4g )o5wrxh0m, pfl-t5fe ps connected in a combination series and parallel circuit to a voltage so5fexofg-m hw5 lpopwt03r),4 urce.
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 identical. Wy oouh 9; h: .;4m*zqr2csbdz cic3m)uhich bulb will be the bright*s u d4cby9m;3rhzmo :c ;i)2. czuoqhest?


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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 ) vvs7 6zwtrr/,q6xbe1 9ds qoswitch and three resistors are connected as shown. With the switch open as 6)qwoqb dx,/v1rzv e7sts96rshown 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 resistors are connw1mqyajpd; 9lu wa ;vr38ay.i46dl+5ky 0dy mected as shown. With t3yuwdd6k; ;.v45ylm rqp 0d9y+aijl8 y1aaw mhe 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 tbmqh 1.,c vsw,qi4i3ghree resistors are connectsqhw gv b3c,,14mqi.i ed as shown. 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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