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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 tw* iu vlb zj:t,r2l 4)*oh; hvor)mn1hv7q0rthe 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 the electric field through the itr *1hl02)*u;4on ijro m v,hv7lv)hqb rztw:nterior 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 ijhl ce +le4q4yxu5*z( n parallel, the_________each resistor is the same. c*xzql4( u el4h+je5y

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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 thds e4ucyc*4s1 e thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected ue4*scd 1ycs4 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 householtxo 3e,,r l .r-rv6swtd lights are being replaced with LEDs. LED is the acronym for txsv .rt,r e ,olr36-wwhich 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 croi13honj ki.b gcuggy/+y*s204n 2 rplss-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 resistivc y iso u23nhy.1/04l2g ji+gbprkn*gity 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 ,dd 83xq e1xlyi2w s1c ;fq;ojhas twice the diameter and tw1o1;e xlqfd3y,x qijwd ; 8c2sice 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 i1w6:6y gko -sv r 9wr/t:ngyqthe same material but has twice the diameter and half the length of wire X. If wire X has a resr/g r:6 v6wyg-yin9kt:o swq1istance 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 radip.gj /+2h12 v ;cji*c 9t1cuvmszm uqbus r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the s 1iuc1t; .v /mb*9p2zcjcqjmh+vu 2gresistance 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 bulb. He decidesp9q w:74u5 ;iw(y ruwan 2qboi to modify the filament. How should the filament of a lightbulb be modified in order to make t95w;4y wpi nwr2buo (:iqua7qhe 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 resi-+vo 87v, d8tk+s0yjghkng p bstors are made of the same material. The length and radius of etdkbp vj ++7sh8yg v0nk,g8 o-ach 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 connected to aq )aq ab//ie9p battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resis9iqbpa) /a q/etor. This set of three resistors 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 accompanyiv op/5y7kzs:jq+k n6dr1/p gnuve-, bng circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The ordbpqu,skejny-67kvn /g1:zp/ +v5voltmeter 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 )avm99rk,yj -p qbh9o)ib (yk circuit shown to the right. The three bulbs 1, 2, and 3 - represented as b qv)pmkr(yhi)ky99 bja -o,9 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 electricn/161 e9pote qz5trk cal circuit at the right. If the current in all three resistors is equal, which of the following statements must betp6 5cr1/e z onkeqt19 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 cirj dwhv6 l0pz 6-sew5o7 o :umkas;+ 9adxt+fi4cuit composed of 5 identical light bulbs and 2 flashlight d-fwo+5 6sa xl zkompjwiev6ah: s t;0+u749dcells. 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 folx.54qqyr u )yolowing statements is NOT true concerning the simple circuit shown where resistors x5 )o4yury.qqR1, 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 series to a battery. Bulb X lb23 cgg-y ,fhis brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel3hc bfg-g ,yl2 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 idenh *qil+6tjew8 htc-p(tified resistor in 5 seconds once the circuit was cle+ *6h-(pwlt ct ji8qhosed?


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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 simp9*y.n8g22gaw1b z2z mfmg y yjy; ai0kle circuit have the same resistance, which wong;8m.m y zf g2w*i2a20y1k9a zjygb yuld 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 ;9kwnz *o wurz 6v28 gn d/xyyiii529zthe 6.0 Ω resistor is 1.0 A. What is the power supply voltage Viz8y9wyn u 2go25dv 9n/rxwi*;6k ziz?


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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 sern ,i3 zyhr zq6q*:pwjp*az l66ies 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 volth6*,:wq *3p znj yrzalqz6 ip6age 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, R.bkjen+x *0yey gs p8ef(n3h02 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, anyx0 en eg(+fe8.0jkhs p3*bny d 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 rated 1200 watts and 120 volts. What is the9q fymhlt1wx+ q7 ,ne* maximum value of the current under these condi,lnmyqt17e 9wx*hq +ftions?

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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 li/dok(c 3+ut imij6-ffd1eqy4ghtbulb designed to operate at 120 vo1ofm6q4fd3ceti ky+i- d( / jults?

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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 dissipdv 8.cn4vk80ep *hqm aating 36 watts of powern0evv8k 8.qpac hd4* m?

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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 clot kgs gr*.yv ;dqp;avl ya8*sh7 vd84r(hes is marked "120 volt, 600 watt.” In normal use, the currk*(4lag v; hr8py7*qv ss a8;. dyrgdvent 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 followi82bm*z h pd nlh+v5v l+s9ec9bng resistances could NOT be produced by a circuit containing only three identical 6Ω resistor+vhhz8m vn5s+b9e9 lc b*2ldps?

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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 *mse- a5ka4ker- un2rthe following equivalent resistances CANNOT be producede mk-sn2 5u -4rkr*aea 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 dif .an yn/v vqo)0)7cmfgferent configurations. If all three resistors are used in a circuit, hof)vnmc.q v)y7/ 0anog w 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 pd+ np3d/j5pwbg 5;rowc )ae (tower P is dissipated 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 internal resistance of the batternjb53rp;gdw) /dotewa( +p 5 cy 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 connected in parac l95nf81qb1 amd 14qw)/q;tmf jfwwufs m2l9llel, theda q51;2j9nm s l9q/4 t1uwm 1f8qfmbcflw) fw 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 has a resistance of 12Ω wgf,l.p1 roo( y;jaeg3cy4 p t1hen operating at 12. f 1ecpy;jl(13goyg ,tar4p o0 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 that ie :0yd/as;/i b/i; 1hrpnnoeys dissipating 36 wa b/a0e rp1ysho:dyi;/e; ni/ntts 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 dra);f k u64to4h)g fvrbews 13 amperes of current when connected to 120 volts. b;)46)hkftfoveug4r If the price 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 keep vh+ )e93qx 6icmw.6 zwn*f-ats)n beda 100W lightbulb lit continuously for 1 year at a rate o *aw .6zm ef6-qn)3)ehxbvd+ sni w9ctf $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 of8mi pul::kwwr;k x9x6 4.00 A through 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 lightbu:kx krxwu;:l8 wi6p9mlb?

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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 computu/ beqn9qt8s/er rated at 500 watts in a 120 V circuit. 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 b9su /t8neqq/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 ra 6 wb,)hlk9vh5 x8lnvesistors to form a simple circuit as sh86vnv l,a5bkh)xw h9lown 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 r6q1cgbku 22dhtc0d +xl2kc )iesistors to form a simple circuit as shown tci)c x+d ukc 12tlhd6 kbg22q0o 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, 7ktg u5usprt.sxf 2;f *lqk;( a switch and three resistors are connected as shown. With the switch open as shown in the diagram the alu fkp us5*t.gx;r fkst2;(q7mmeter 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 swi 8k : mvmk/v y4y5yux,rx)6 -qvi4xfpttch and three resistors are connected as shown. With the switch open as ty86k :m 4ypmxi k,x xv5frvu4) v/yq-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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an idejf rx )hx5hs;foi3k9 4al ammeter, a switch and three resistors are connected as shown. With the switch open as shown ini4hxkh;frsxf)o 9 j35 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 thet9,+ xk-mo/q wc3v ymks,rfb5 equivalent resistance? As v,ymr5 w +t -3/xcmb9kq,ofsksume 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 circuit 2uq,m8vab1rk shown to the right with resistma82 brk, 1uqvances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belo+s84mfi,emfo w: hpq( w shows five identical resistors connected in a combination serieq+pf4o,s w mm ie(8fh:s 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 belo7lmqx2w v +8gm7dyh dsog;-;hw shows five identical resistors connected in a combination series and parallel circuit to a voltage sou;od7yd hgs8l;h +qxw2- m gvm7rce.
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,esb ce,2k /-hq all of the bulbs are identical. Which bulb will be the b/e c2kb- s,qherightest?


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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 conni8nat 47 ss pznwdux)xut :07.ected as shown. Wi84 .sds0a pn uuxt)ni7tx:zw7 th 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 ks;my/k wwd-4sv k-/tideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the tkv-/k-sw; msdy/ w4k 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 thrzub+ (f+e)6 ybdyoy2oee resistors are connected as shown. With tyd6z)+u y+b oy(fo2ebhe 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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