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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 exis+hwn(3t;/uiux d *mixts in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the res(hi3* u+in/ wtxumx;d istor 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 connected in parallel, the_______a kfa/ xd-k02tye bjkr.+7 q:l__each resistoaa jte7r.k /k yfbd:2x+qkl0-r 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 fizgi 0lgq4 *et7lament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much z04 leq7*g tgicooler. 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 househi8 ion5cs5nm,yaa dk-s4gk0 -old lights are being replaced with LEDs. LED is the acronym for which - gnmns,4i8 k5 c50aoai-ksd yone 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 +w5b 5d0(p.ndgtyapugraphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that the new length is pdbgd+p5t( 5w. n0uya1/2 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 materia ++9ov 5uv6kb9 ulkfvkl. Wire II has twice the diameter anvuk9+v vb6u +ol9k5fkd 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 mad q-6q8gjj6 q-btm(ty qcc -j+ue of the same material but has twice the diameter and half the length of wire X. If wtqy+- 8bjj 6m 6cgq-u -cqj(tqire 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 ev (x7(t6(amlu2lgmr +v37 t;dyab av r. This piece of material is then drawn so that it is a cylinder witd(tvv tl (l 3e m(gb+a6m77 y;au2vrxah 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 Ed /;5vnt(ndxh fs.1wb .5c apkcx.jqn7ison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb prodnwv.txq.( s/j 57dp 1a hnfcn5b.x c;kuce 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 ma3qee8*blkr/ on9;b:2eq lsp oterial. The length and radieeq2:k8; s o /bnle9 3b*plqorus 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 connecti 6ohtgz /hc;u r99x/fed 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 equivalen9 ghr6 9hz//fxiout; ct 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 internal resistania .,k3jrl0f,fs6z aq-jjr2w ce 10.0 kW and the ammeter has internal resistance 25.0 ohj zarwaj63 0fqk. ,-2 filr,sjm. 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 circuit shown to the right. The5p4scx u0hfeb66jk8 nn7f+ b t three bulbs 1, 2, and 3 - represented as e us 6 f5b fk0cphx6+7b4nt8jnresistors 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 aty dz+i 2r+o8qs the right. If the current in all three resistors is equal, which of the following sqos y+8d2+ izrtatements 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 e w0zen 2m+v8 ejujjr30; dnrx0lectric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whw0jjr z2n;r8veudj03n 0 +xme ich 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 tr 1 x.75uea3g8 dty wzmawg,qp.ue concerning the simple circuit shown where resistors R1, R2 and ta.q au8 .z37dxmw5,ey gp1gwR3 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 series to a battvts4x-)yahbpx s 0ibfa72t* *ery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. 0spxxb-)ay*i 7 vh2sbf*tt 4aIf 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 co y c0gakyj5*;bulombs will pass through the identified resistor in 5 secjyy; ab0*5c gkonds 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 j*ul u g++uwfb88 us)wfollowing simple circuit have the same resistance, which would dissipatwuwu8 j+ ug sb+8fu*l)e 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 difpj q2 7q7kr17n8z paiagram, the current through the 6.0 Ω resistor is 1.0 A. What is the pofn817 z2p7qaq7p ij rkwer 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, y6gw xfvrek5rw6 07ql2w/x s1and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistanexv 0 wrf r7wg5ywkqx66sl /21ce 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 andRgwsfeg(29; xz 3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 disf;x29 zeggws( sipates 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 watt1foc*)mdc0 kk9g ht)ls and 120 volts. What is the maximum value of the current undetf)1omd )k9 k0* chgclr 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 wajf td/ll2ha b8+32e v 9ebq2a 60 watt lightbulb designed to operate at 120 volts?+l2jewl8a3q vhf /d9 t ab2eb2

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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 currentv(yixlegkch002; p.y3 bjeq 9 flows through a 4 ohm resistor that is dissipating 36 watts of powe xy0bq32yjg(.v0eiclk; hpe 9r?

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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 uhj8bk 7 .;rkyd6pe1 ofsed to press clothes is marked "120 volt, 600 watt.” In normal use, the current in it fh7rby .6eojd 8;1pkk 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 oq,k1q nfx8f,produced by a circuit containing oq o x8f,,fnk1qnly 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. ze)-w-vsjr *w 9 pv(hvWhich of the following equivalent rwpz)9ew *sv -v-vh(jresistances 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 differend.i0b 5eo o;;l,cczu y*m6tl zt values can be connected together in different configurations. If all three resistors are use*u ;bltco6zy;m5 0di.lco e z,d 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 P is x3od4dgfg2wxazw1q4t e h5ioy+o :3 1dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same battery? Assume the i oozxod 1w4ide32w53f+4 g:1 agxthqy nternal 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 R1lq b2w;(zbkuss a62 ,fw2-tri5hdh7b and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the,r 2wd s2bq u 6bwbt2-(kahh7si f;lz5 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 has a resistance of 12Ω when opesh 0yet;yme 81rating at 120 volts. What is the 8m 1y ;th0yseeminimum 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 7jmup)c h51a/;c fudyjya /y )that is dissipating 36 watts acpjc/uu/y) j1a ym hdf;57y)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 4kr rj+xq4)rg draws 13 amperes of current when connected to 120 volts. If the price orq 4gxrk j)r4+f 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 kerkul54x5d w c6-bbd-zep a 100W lightbulb lit continuously for4db 5xkdwbc-l 5z u6r- 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 a lightbulb results ihd x*,s*:r8wj jj qk5tn a power of 24.0 W associated with the bulb. Which one jr*jh* 5 dw,:kq8t xjsof 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 familyqd 8ye.oaayyq /782 qk of six owns a computer rated at 500 watts in a 120 V qkqeaqo .dy8 78yy/a2circuit. 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 resistors t s.5cfrts 1cy2s z5)tql)veo:; n 6sfjo form a simple circuit as shown to the ritrs;5c65ss2)f vcly z sn ef:ojt.1 q)ght.
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 fors )gf gwnxbcj6+7kns), bms .*m a simple circuit as shown to the rs7m6)gcs fgn) b.*j,ns+kxbwight.
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 thpm pkpv5+z9p /ree resistors are connected as shown. W+p5 k m9zpvpp/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 t y ; * ow7sg-ikbt5)ilv8ezv9xhree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.iilwv9b;ykg5t - xvoe*78z s) 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 resih)rmqf v ;uzsu.z:6u/ stors are conn.qm:u;ru s fu)/zhvz6 ected 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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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 equiv4dac p2bhmjpq +z9r //alent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all 2/jqppd4ar 9zc/+ hbmthree 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 circon0f efoy-f((il vu6 /uit shown to the right with resista0ny 6u/(ffeif - (oovlnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistorb1ioglbi 4lxdeyw, -jxpu0o91fot 1k p3 6t3)s connected in a combination series and para,10ei1 bx36yk bipwx4t3tg )of julo1-ol 9pdllel 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 resistors connected in a combpc5z-q oqsn; ,ination series n5,z qo ;-cspqand parallel circuit 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.rsskrg,b9 9 (zw rlx09 Which bulb will be the brightest?k9 9grrx lbz(w,9sr0 s


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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, akj/ g3cvr *cq9n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shck* q9rg/cvj 3own 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, aw.o3moeii8 6q n ideal ammeter, a switch and three resistors are connectiiewq.38om o6ed as 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 am(hbe9+kzb6k8fsl yl, meter, a switch and three resistors are connected as shown. b8fsbey lk6 9khz+,( lWith 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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