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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 resistorbjeu.-f gbdwa3*5p0 o 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 electric field through the upjf.bw0-bo g35a* deinterior 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 resistore06c:vvisp(xui pf 2q ,zq ffxo4 5l)(s are connected in parallel, the_________each resistor is the samf4oqvc x) iu:p,((flfe2sxv 0pq z5 i6e.

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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 widn1epk2u w i+.re of a lightbulb causes the filament to become white hot, while the larg .ke +uiwnd2p1er 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 zih+/+gs/z r isp if+jy7r (1hare being replaced with LEDs. LED is the acronym for which one of the +h/j r7gspzr i+h/zis y+i1(ffollowing 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 graphizffq h+os++ 3 9xri2tvte 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 1/2 L. What is the ratio of the new resistivity to tht92o+ zvf qh+i3 fxr+se 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 twictwwepap9b ms38(i* 6je the diameter and j em i *p38s(pwwt9ab6twice 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 made of the same material but has twice the diap+t;fclc x 97 cc6z7cdmeter and half the length of wire X. If wire X has dfcz9c+;xlc776c pct 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 rk32hp*r cq5u1:poe xaesistor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistan*ep1:xh pqro 53k2u acce 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 l7tv7c9ppup2sz iz ylv(9br/ +ight bulb. He decides to modify the filament. How should th i vtl+v spp72zu/ pb(yr97c9ze filament 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 same material. The len19zxa/5pfa-buafm -zdwc 87 +7xhg ydgth and radius of each res8x dz ac/59+ph-afx dya7uw-gmz 1bf7istor 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,oy(2fsgp+ g p- each 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 o- +pog spgf2(yf 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 diap3hyq :lxu7z0 p7-byjgram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.p: h-7uy07l qjpy3zb x00 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 ribm,vuik ,8x sd+ej u*/ght. The three bulbs 1, 2, and 3 - represented as resistors in the diak jivu/es+d um8*, b,xgram
- 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 thf,ltl7y0qeh 4(v rts0e right. If the current in all three resistors is equal, which of the following statements must be0,tr4q f0ylvst7 e (lh 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 ciyrd3/rg6m 2v po :lm:jrcuit composed of 5 identim2myv: r:/dr opj3gl6cal light 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 is NOT true concerning the sidd 4kf ,h p5wy)ke+g0imple circuit shown where resistors R1, R2 and R3 are have equal resistad 0kewgdi+4yhk)5 ,fpnces?


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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. Bulok+x*w1:* l rsl2bwlk/xt b.y b X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with ey o * /xktkl2.l*wx l:bw+bsr1ach 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 1i) gxdbyex2g1ym/w j 4c5ok7through the identified resistor in 5 seconds once yod5 m7x/b)1k2j x wgg4ycie1 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 siq 1tl3z4 :ukqjvvo*p *mple circuit have the same resistance, which wouldpvqj:tvq*1z3u*lo k4 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 circht4 h.1yo xp f3bpw2x p+9.tbeuit diagram, the current through the 6.0 Ω resistor is 1.3ehb h1ty+p 9pxw xo.4p 2tfb.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 sin xrz73gur+b;2 ,ag are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is the v bixz ,;7s+rgr g2u3anoltage 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 connecte16 g 7i48xkgaai+dbm cd in parallel to a bat 6amx1gkadib7c+4 8gi tery. Suppose R1 has 2V 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 coil is ratekvi3 o f50ulng j95p*0qjrde ,d 1200 watts and 120 volts. What is the maximum value of the current under tljnp rv o0id3 *j 5q9gu50,fkehese 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 u:0hi2qgh n9l ;:a1 udsmxr*m60 watt lightbulb designed to operate at 120 voldh9r gha*l10 iu :m mnsu2:x;qts?

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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 uk)*v. ese)x (dsd8ec* )xrkq dissipating 36 wa er *dsed )(x)veuq)8.xskk* ctts 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 to press clothes is marked "120 volt, 600 watt.” Ikbizgl m0** ;1 m2l4n hlx/ymwn normal use, the current inh24l1*0zk*m w mnmbllyxg/i; 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 NOT be produced byb8el4,*0zdue ix br3v :fep;j a circuit containing only three izi b3fpe8* , d4;x0rj:euebvl 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 the followingy -zzo( nvf1w/2 n1hhl equivalent resistances CANh zo(1lz yn/nf -2wh1vNOT 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 together in differ3:i(-82ogoiv uc.hs a/tk t:uo3 iybsent configurations. If all three resistors are used in a circuit, how many different values of total resistance can be prodoyia3thoic. 3/( suv u: t82og-:skbiuced?

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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 Poclqjv3fu)qq2*5y.r -p:ozq is dissipated in the circuit. How much total powerqj-:crl o qq2 p*uf5q ov).z3y 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, havingvr5 ,c sx130eoell ly: 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 corree1oc50rls lx:y ,elv3 ct?

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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 resistanclpi+h h+c-( kde of 12Ω when operating atphk-dli+ (+ ch 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 through a 4 ohm resistor thajyls(m t2e08t*gnz ;st is dissipating 36 watts o tm0jn*e8zgs; sy2t l(f 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 current when connected to 12.,l +xyqz o qxa0lafcn)q79q. 0 volts. If the price of electricitoq fqq+xaa.lx.n),07 l z y9qcy 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 keep a 10kveb:l8o(tg1po n 4o 0 3 wg6jst)lo3s0W lightbulb lit continuoug0 golnse8kwjo 4 6l os)vb(1otpt:3 3sly 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 a lightbulb results in a power of mo -trf9(e t04ty ,tozz;lrg, 24.0 W assoc4ly0rzr -;zft9tt emt oog, (,iated with the bulb. Which one of 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 cometnlap4 44hoob1:rmp/tr fu)vl );q:puter rated at 500 watts in a 120 V circuit. If all computers are plugged into a singletnabrrl 4o;) 1 pout/ql p)em: :v44hf 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 tovn9 -;pt *gwsp four resistors to form a simple circuit as9v;gw ppt*-sn shown to the 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 simvd/jyox0n3 deoega 1-bfsi- v28,fm6ple circuit as d0vxi yd6 ,of /3-g1m sjbaovn-fe8e2 shown to 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 switch 813ya qisepuirzt750 and three resistors are connected as shown. With the switch openaqt ieui1p7z0 ry5s3 8 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 idea;qy( ,zmdf.p al ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2y.( pafz;d,m q.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 conn zu;bt.f-su )tected as shown. With the switch open as shown in the diagramztf;sb uu)- t. 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 th.br mdohhw,7 2l9(c zae right, what is the equivalent resistance? Assume that all wires l (,9hbc7mzrohda2.w 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 y3msk9,e m7 wmftru;7)8xl1x(l cgip of the circuit shown to the right with resism)8s;,9liugk lcf rx1my7p3xm(7tew tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 r5ruy .ssc23gk)l s.vfesistors connected in a combination se.2 kg3)u f5s.yslcsrv ries 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 identical resistors connected in a combinat* xq xma2ua-n/ion series and parallel circuit to *xqmux 2n/a -aa 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 0/sx 3ytqe0nxnl:+uy the bulbs are identical. Which bulb will be ty/ 0nqyx3+0xsnl:e u 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 r*39 ja3vxj:+ nnsdgdfesistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ddn+g3nvf j3j xs*:9aamperes.
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 res/ ;ei,u4-zt wqtncws ;s,os (;d 4xdfqistors are connected as shown. With the switch open as shown in the diagram thedws ew; 4i q, s,x4t-;o;cfd(q/stz nu 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 ideal5 4os wew07suiz8t+ vzs v6m;g ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 w 4i7vt+ s6ssu;v z8zem0 5owgamperes.
When the switch is closed, what would be the current in the circuit?


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