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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 circuimz l5h;mi.ehia1wx /5t shown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of tew l zmxh1.i5a;m/i 5hhe 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_________eai8z )q)farvf;ch resistorq)z8) a;fvri f 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 filament wire of a lightbskx txb;tr,7y9tz v +o qn4w((ulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens be; n7rt,+9 qz oxs 4vtykxw(t(bcause

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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 being8 zv3 lcyuii25b,-okg replaced with LEDs. LED is the aovg,5lcz - 8yu3b kii2cronym 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-sect j)ruqp)q*,cv ional area A. It is to be placed into a circuit, but it first must be cut in half so that the ne cv* rpj),qq)uw 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 ox xl4ot3k 2l,are made of the same material. Wire II has twice the diameter and twice the leng 3lk,4 2txlooxth 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 madev hl;eg utb.:.kw/f f1 of the same material but has twice the diameter and half the length of wire X. If wire X has a resistaf.etg/f1. lvb h:wk;unce 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 h5-kyqa -m11jbiwcd earmlg (6+y3l3zas length L and radius r. This piece of material is then drawn so 5b i- q+-63d3l(c lyekrgwy mamzj11athat it is a cylinder with new length 2L. What 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 clc1s rthaj8f9 6s07kbulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order 91t kca csh6 sr0lj7f8to 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 a:; *lzhyvbzr3 re made of the same material. The length and ra ;bzyz:r3 vh*ldius 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, e 5dzzfc0d9(vdach of resistance R, are connected 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.” What is the equivalent resistance of this arrangement of f 09dvzzc (f5ddour 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 voltmeterk5ew h(81;4oi(qwem qs jv8 ab in the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 me(oj58qwq sb w4 1a(vei; 8hkohm. 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 co:9j0(nu skpo:u fs1rpmpound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagram n usu:p(kro1p9f0:js
- 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 electric)be(na6, ,--nat i mfslgsudl cv;6z56i w.x aal circuit at the right. If the current in all three resistors is equal, which of the following statements must be 6z6;5fliacen ag-ml,s) nu- ,(dib6atw svx. 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 simkb; s /yz4dqu9ple electric circuit composed of 5 identical light b/ y 9q;u4sdbzkulbs 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 is NOT true concerning the simple circu48w)jcq k4cft9 pu tudeq4l1*it show4fk q u tclcduje 14*wpt49q8)n 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 andcpn+ kytr1jb s68,s42c)gcur5e9md nY 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 incb4rdy, rue tc s)c1sgn258n +p96mkj 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 inkq 8mkwn b1rw5sx7y.:;w 0ewdentified resistor in 5 seconds once the circuit was ck7be;q:w 8 y0mw.nwxk51 nr wslosed?


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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 xo5vg)qocfdt63 b 4-x following simple circuit have the same resistance, which would dissipate the greatest powexgt 4cxf)dv56oo q-3 br?


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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 tui p60m4 .wj vh yst4e4vqw40whe 6.0 Ω resistor is 1.0 A. What is the power supply voltage V 4hsqem04j6t4 0 piu.ywwv4wv?


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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 t/olwu19mun:( dhf *oat h s/i3o a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W ownio tsfu1/:93lhuma/ ho d*( f 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 c89n)d ocex1s+q 4omy andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipy s n)19cmx8dco oq+e4ates 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 1qz6ncfm ,h y7720 volts. What is the maximum value of the current under these condi,y hmnc7fq6 z7tions?

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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 ynbdop: 2f9f .u 7 e bme-sv4/oe.brt3designed to operate at 120 vurn2e9mbof7f 4td:p s. eye .o bv3-b/olts?

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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 resistortgq*5 2mhf2 rs that is dissipating 36 wattssq2hf r*52tgm 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 iron used t2e1hgq 5wl.4sgr,al(ci9kpl o press clothes is marked "120 volt, 600 watt.” In normal use, the current l l ig p5ckl,ghq(s2a1ew4r9. 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 NOTb 81lj;- 8* ofc4xetvh pcisj7 be produced by a circuit containing only thre1 je7 ;jspc tfl*o-iv8x8b c4he 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 resistors. Which of (hq0 mhc 79s25zhzdq jthe following equivalent resistances CANNOT be d(zqmqs9 jh2zhc0 5h7produced 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 0 7p oph2*yhc; 9vhplhvalues can be connected together in different configurations. If all three resistors are used in hhocv h;7y *ppl92h0 pa 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 resistow, l-q) vnhxdl-(m4zvr 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 resiwld v qz,mh n-(4x)vl-stors 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, havqt 5019ivqadg ing resistance R1 and R2, are connected in parallel, t1a90qgtvq 5i dhe equivalent resistance 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 it ak latcd-e:l/p*l-(nhas a resistance of 12Ω when operating at 120 voltnacl :/*dl(ket -pla-s. 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 flow*v ja3 6ie.k+q3g38g/f lw1dws jllwy s through a 4 ohm resistor that is dissipating 36 watts of power6le3 fg/sjyqa.v3jwli1gw lkw*3d+8 ?

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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 coz-,; hzsxmfh8 nnected to 120 volts. If the prif8hs hxm;zz-,ce 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 much would it cost to 4i97rc9 q2o 6sdcil1ihtm2wjkeep a 100W lightbulb lit continuously for 1 year at h ocmc 1jrslw994iid7622iqt 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 t+ffa xfs0iqa /9*q*t /i 6n kzyaho0+7cdr*pvhrough a lightbulb results in a power of 24.0 W associated with the bulb. Which one oy0k+9r q*/ */ ih 0qaxp tos6afi+7 f*acdnvzff 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 rated at 500 watts in a 1r6;(y eg n5ymo20 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum numbermg;65rone (y y 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 ;f3f ar)po 2exconnected to four resistors to form a simple circuit as shown to th;ef32xrfop a )e 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 resistors to form a simple circuitd4.oz qm)d.wykexyw+ 0p(4sv. ul :v c as shown to t (w.osdqpmkvly40.cx u w)+eyd: . zv4he 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 resistorsx n 87m2 sc-w09.ulqhm7h pfln are connected as shown. u7sn2wchql8 .mxp- m7 n0h9l fWith 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 b a w l (d,nem/64p2z3owjbz6xresistors are connected as shown. With the switch open as shown in the diagra6wlexb64zw a /3zpb (odj2n m,m 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 amm krq,:lz6 kg9geter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amg6lgqrk, k z9:peres.
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, wh (v .w 0.y +tl6rz5lwr:jr j7trl4mhvwat is the equivalent resistance? Assume 5w4l:t rjl wlt6 vjzr.mrvy7rh+0 w.(that all wires are ideal, the battery 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 resistance of the circuitg1w 9oz/ oor+x shown to the right with resist+z1 oroow/9 gxances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 av1.df: bh8gq five identical resistors connected in a combination series and parallel circuitq.v 8hbg1:fad 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 fi zrj+3lr:e.a ave identical resistors connected in a combination series and parallel circ:rer.ajz+al3 uit 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 identical. Which bu/s92)xije rq:mr kr e8lb wism98ejre2i:k/xr q )r ll be the 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, a switch ryq z:gf5 m01epk5ef2 and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2. 5gfye1q2ek5zrm0:f p0 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 ammkj f;i2x, o:cha0hma4eter, a switch and three resistors are connected as shown. With the switch open as shown in the24xkhch 0of:aja ;mi, 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 resiste wq 78-3nrnizors are connected as shown. With the switch open as swq-e7n zni38r hown 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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