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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 elect (vih1g+ ;gn4ozao*gfric current exists in the metal resistor connected to the4g*g1a(+hozg; ofvni battery. Which one of the following choices best describes 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 conns20 x j;+f q,t mu dfkv+8ymy.d8n3vtzected in parallel, the_________each resistorvt+ynzv,d8 dfj2m+xts8kqy 0.f3;u m 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 thrjuuk3ea- 1q.kough the thin filament wire of a lightbulb causes the filament to become wh3q-1kuk eaj u.ite hot, while the 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 yrzn0j+fa7w. lights are being replaced with LEDs. LED is the acronym for which one ofz7rn+ a.y0jwf 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 cro;l lbw mm,xh/h 95v;e/e: mx/, yjfgkhss-sectional area A. It is to be placed into a circuit, but it first must be cuwj5mmm fy;,hxh lleg/be;/,h9 :x /vkt 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 wire II are made of tr2iix p qx3v8 -t1gtu h6v1zr2he same material. Wire II has twice the diameter and twice the l2xz6p 1 t ihv1urvq23r8gx- tiength 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 material .i nj;8m)2(p4zqrr jho fc( vbbut has twice the diameter and half the length of wire X. If wire X has a resistance of R the2hoif r) q;8jbn(j 4mc pv(z.rn 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 ;w zrg* prmk+jk8w 8uih94k0t L and radius r. This piece of material is then drawn so that it is a cylinder with new len8w49pwg k r*tru j0hk8ikz;m+gth 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 boi;wid 0-llo0nw+g/ 3hzm+r sn;ehvbi1, f 6s righter light bulb. He decides to modify the filament. How should the f,le6i ihbs13r +n+-iow vsnh ;wzdom0 /f0 g;lilament 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 are made of the samta;q 8n ec2po2e material. The length and radius of each resistor is: a82 coqpnt; 2e
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 hhi (:ii4*qhkh-r 1cjach 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*ic:(4rhh iq-hhjik 1 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 cl/ u dzge((n*internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The vo(/z(*dlu e ngcltmeter 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 :2 p2qfvlg+ wcshown to the right. The three bulbs 1, 2, and 2lgpcq:2 f+v w3 - represented 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. If the currend9kg j6qc.3w* qla(xgt in all three resistors is equal, which of the following statements mujq*k g.d(clx6 g3a qw9st 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 elehyjb(6+rjkm2 *(f mpictric circuit composed of 5 identical light bulbs 2hf j(bm6* j+(rm pykiand 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 , 5jxxu. )3ek(n7pqg3z sdohtis NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have eoxk7(nts qhx d,jz3)pu.g5e 3qual 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 series to a battery. Bulb 0l p/ /e-ubuumuwpn5 l/atr*( X is brighter 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 obpwl-nmb tlp// eu0(r5* /uauuserved?


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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 resis9f(vr -gghgc k f)**zi;,zvx ztor in 5 seconds o,g f vgz(;*izhfkx-v9* )gczrnce 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 td6lp n0l;gegg 43b6fgima 80she same resistance, which would dissipate the grealg gia0sggb3 dm86lpn 0f e;64test 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 the dm04z-v z:4set 1vx sp6.0 Ω resistor is 1.0 A. What is the power1ezt:z ss0-4xm4 v vpd 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 batt f;f ibqqs2n 4.i:-bdnzjo6 r8pn 2a;9 p2ddzoery. Suppose R1 carries a current of 2.0 sbb p :nqa9dn;i-nf2z2podfizdo6;q .r84j2 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 connected in paralj,t1o6wyfk ,vc :4b:x8 p hmf kioro4:lel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipateofcji 1k 8,, 4:6toxp b:m:yvrk 4fhows 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 ir/-2uk0og 6 he.engbps k; nc/s the maximum vane6gh;k/-bc/n ok2puse0g r .lue of the 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 lightbl dmt3g(nhkm+ 44b pt0ulb designed to operate at 120 vo40dl tt3mb+(p hn4gk mlts?

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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 dissipating 36hwfd xk rh9wop2 d24v/9yd2+t watts of power? d2d/dv4y 9 2wfothrph2+k wx9

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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 pres 2mwz91uy2 hxds clothes is marked "120 volt, 600 watt.” In29du1zy2 mhxw normal 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 follot5;5- qzcp(w vqzh mf-wing resistances could NOT be produced by a circuit containin5vfwqmzq;-hz- t p(c 5g only three 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 the following equivaa,,iy4 eghou*) khkvr47wj)r5b70b p r* zxtblent resistances CANNOT be produced using all5 e,br 4 *i 7hkhtprrwo0)b*bgj)u, y47akvzx 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 togethi;-d-hzbp g r/er in different con rp/i -d-zb;hgfigurations. 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 battery, a total power m2ztxj *r9-a jP is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series z- 2j9rxjamt*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 and R2, are conne)dq11 m: el ycen-uhb.cted in parallel, the equivalent resistance of the combination is 5Ω . Which of the following stat 1l1 qcm.):ebyudneh- ements 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 txfg bn wbfk0ljjd18q-: 5xz,*hat it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it woul bxg 80 z bfn1:ldxf,*k5qjwj-d 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 drrv. -tkjf +zal .j5(through a 4 ohm resistor that is dissipating 36 watts or.5r d-vl.j(zj tk+f af 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 )4 -ugh)peskkq bg)v e:kd)2o draws 13 amperes of current when connected to 120 volts. If the price of electrig)eepkus 4qh)b k:)vdk)2 g-o city 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 howx-z, r,2vlb92hezsk y much would it cost to keep a 100W lightbulb lit continuously for 1 year a,el-rz2k v xzh,yb29 st 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 ligylr6xe1- i6b rhtbulb results in a power of 24.0 W associated with the bulb. Which one of the followii6-br 6yxler1 ng 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 wattokhe) 6rbd.*9 xq 1ejhgr)sk r)6bq2m s in a 120 V circuit. If alrhkhg)e ) 2 *1sq.)b jxoe6q69mkrbrd l 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 resisc(9glsohv o; *i2 oah-tors to form a simple circuit as shown to the righ v2; lhsao -c(o9*goiht.
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 foubpw2 jhuvoo(jb/. 7c6+-n bd(h tksc,r resistors to form a simple circuit as shown to cun.sho+j (2,p6kcbb-wtjo/ v(b h 7dthe 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 resistx fuuuxc 9283aors are connected as shown. With the switch open as shu a9fxxc 82uu3own 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 res -i)nmos)p- 4wdms5ipxb 6 5c4vvti8mistors are connected as shown. With the switch open as sni4x4)5 i8)ms opwctpvsm i-bd56m -vhown 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 c47b ,.te:iscvb;xr 1l(b eqyj onnected as shown. With the switch open 7e4yb ;, q:xb1it.rb ec(lsjvas 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 equig5yq klgw6m 4(7 *6i7svof qakvalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identicy47ol s65*(kfmg a g7i6k qwqval 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 t ca*,fmh3j6u the right with resistance* fam3uh 6,jcts $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idenb: mi9 m1)vzsjtical resistors connected in a combinatisv9:i mj)mb1zon series and parallel 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 qz) gy s a9.t )coudyvt/2/v*eidentical resistors connected in a combination series and parallel circcg 9vuyzotvt /2) ) s*daq.ey/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 sxt) 3qoosohw; o,n/d8.e u g+ of the bulbs are identical. Which bulb will b,xq /u38ooon+sw d)oe t.gs;h e 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 and three resistors are connjeq9*rm-s (g9 q( a9iaembzc8zqe( a99m9*i se( -8q rmbjgcaected 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 switch ae g, 8xewq6l8lz5 6moand three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rlq8g5eo,8lme6 6wxazeads 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 thukim-: 4lea3f ree resistors are connected as shown. With the switch ilu :ekm4a3-fopen 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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    总分:50分 及格:30分 时间:不限时
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