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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, ang77-unri9 u qh 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 the electric field through u 9qrin g7uh7-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______83xpb;887 n-kb r /xb2ama 09 aqgrlxtimpge9___each resistor is the samer x8b akeax739gmbnrg l 2-8/p tapx;089 bqmi.

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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 t n,cx(vl2w,ph he thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happe2 cv nhp(,wl,xns 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 lighw4a1 4f ttx;zd3i-ymd ts are being replaced with LEDs. LED is the acronym for which one of the foll3d ;x4 izf-yadw1mtt4 owing 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 gu0nu*t/ ze8n94x*nfri s k g;graphite resistor has length L and cross-sectional area A. Iutu9r*f gn/e4n;* z xs8ki0g nt 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 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 ma 5 ;8.mxnncp7 ajrohge:vq spc99/x /tterial. Wire II has twice the diameter and twi:9 9ac qpe8 r/5np7xcxt/ g;njsh mvo.ce 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 ho g57x:ozzv:-rt g wp0as twice the diameter and half the len optz: 7goz5x:rv-w0ggth of wire X. If wire 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 r. Thisl a 3jydqj/u16 piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of this j dj3u/a6lq y1process?

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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 decides .uu( :t4ihitdto modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a givenui( i tdh:t4u. 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* 2rr 7i0axws;y hi;si length and radius of each rxyw;s0r7 a*h2;rs iiiesistor 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 :1wzzv96 drap3xxsq 0 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 rxvwa 9 xdqr60z3:1zpsesistors 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 a6r7jl evyhb0 i8 w1 ))wjvjx:accompanying circuit diagram has internal resistancexw)68jj:0i)ryvl j wa h 17veb 10.0 kW and the ammeter has internal resistance 25.0 ohm. 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 righ5al/b: (erax ht. The three bulbs 1, 2, and 3 5 abh:(/alr xe- 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 elecm -974etk ylk cg4/6grtwztp3trical circuit at the right. If the current in all three resistors is equal, which of the following statement9 -c mlzk te46k34tg/pygt 7wrs 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 representf , htw12jpsn kp93q+cs a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which buctj9wq nfp1sk, h2 p3+lb (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 sir :cojnno5:t -mple circuit shown where resistors R1, R2 and R3 are have equal resistancesor::non- jt5 c?


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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 a-1bd3 a(fm/a mj1h7aw* 9cremh kaak ;6op0lqre 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 in parallel with each other to the same batte9c0k a*;hape67b ( f 311rqkaow dm/ahjml-am ry, 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 identified resistomagr;h d -l( 6m,wgvr-r in lah-r-6r(dwmv ; mg,g 5 seconds 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 e5 op ;bju qa*/z4u*jtfollowing simple circuit have the same resistance, which would dissipt**jqbp u/ 5eoza u;j4ate 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 curren11q)-za,ibzapn*ve6i)lnm s j 2u1 bdt through the 6.0 Ω resistor bzqm6aie1bpil 2* )ja,)u1n dvs1z -nis 1.0 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 are connected in serieon8rcoh8 sh.ukb2z 3hq50:ef s to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3n0ceh .5:h 8 uoqb3hz2fko8r s.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 t3:+z; sayzxh andR3 are connected in parallel to a battery. Suppose+x z;hz:ays3t 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 rated 1200 watts am w+xn8.uud7 9weo9b yi+v7c ynd 120 volts. What is the maximum value of the current under thesumey u.oy+7w 97i9vw b8ndc+xe 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 osox8tcu. m a 6yjl,oy2j,4x0noo;pc :f a 60 watt lightbulb designed to operate at 120 volts? ou40n ;o6xx,8j :lmcptoj,cos2yy.a

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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 thatf2rp:jn d qm64 is dissipating 36 watts p4j :dr6f2n qmof 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 c4o ;5a ea ae;gg+z,gdalothes is marked "120 volt, 600 watt.” In normal use, the current in it iggz54;dgeae+ ao; aa,s

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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 resi uur,0 7eeo w8(sspt8mstances could NOT be produced by a circuit conta7t0esmswu 8p 8(o ue,rining 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 o4anpc v65 f6 7d-fyzwresistors. Which of the following equivalent resistances CANNOT be produced using all three resi7z4 n 6fy5fa6- pdcowvstors?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.06: Three resistorv7ud;)9wy2ns.3,k.koqltvt*xh b p l s of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of totabxktqpk.3vd; .nl*hy29 vos l w)t ,u7l 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 9 o+frfit:np.to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n 9tf:nr+p i.fo 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, j.ix cb u,jxpg) es/ .(pukhef,i1(w(having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω .(x.),su x.ejh c iw/ukbif1(,e jppg ( 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 r2mdy0jbwh, gjl(b +*tu jnd y8.sf6r)esistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it wou2*f,6jgyj).+dtrdh(nmus yw jl08bb ld 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);uxo/xon a;0j ol ystoh(+3 r through a 4 ohm resistor that is dissipating 36 watts of pow;r;ol3j x o+)h0yao u(n/osx ter?

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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 ck)bl( l v*j 6l24fmsy8qtjvinzvt69 e y/ a(5wurrent when connected to 120 volts. If the pricee2kll mzwtsvv5q4y b/8)9n vafi6l6 ty(*jj( 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 ke* rlwk ;z .as3 1ujlt5.gufsj0*vn7ju ep a 100W lightbulb lit continuously for 1 ye ruwgfu sst5u*j7.13jkl ;a.nzjv0*lar 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 Af h(-ovb/gg:x d0( kc1rc 5pzb 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 lightbulb?:oxh-bbrpg/ 1 fvg0zkc d(5(c

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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 .*i4v.qe m f-uje6r zplt,hx/a 120 V circuit. If all computers are plugged into a single circuit prtz-hul4q .erfi* vemjx .6p,/otected 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 batterw x81 esurzp86y is connected to four resistors to form a simple circuit as shown t z8uw8r e6sx1po 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 conr 6 vh( 0tdk14ixjbr*nnected to four resistors to form a simple circuit as shown to the right. d4h0kjr(rx1b nvi* 6 t
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, ax.cms dzh7y4 9n ideal ammeter, a switch and three resistors are connected as shown. With the s9.dshcy 4x7m zwitch 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,z,b ht1w89yz k a switch and three resistors are connected as shown. With the switch open as bzw z,9y8hk1t 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 h lrq b53;7s,mmm6mz mideal ammeter, a switch and three resistors are connected as shown. With the swirzm blms,mmm5q 73h ;6tch 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 t)kjwps 7sp8vzfo9/3lo the right, what is the equivalent resistance? Assume that all wires are ideal7)/f9 zpsjspkv3 lo8w, 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 txg p c:*d78xcbhe circuit shown to the right with resist*d xc8x7cgbp: ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors connected in avvy (8 ysy1 ite1vkzkkb ia5: 96rx+v. combination series and parallel circuit to(+ tv:1a ey9s81vxvyr6v.kkb i5iyzk 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.ew; vnzm:;7 bo:wslrgcf(7 m shows five identical resistors connected in a combination series and parallel circuit to a voltage sourcevne :f.mcww; :zrmos;bl7 7(g.
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 id evfx9p9gp.) sp(f,ut entical. Which bulb will t,xv9spf9 ) .gupef p(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 and three resistors are cony6bgp, an5h0u.jq7 ernected as shown. With the switch open as shown6a 05 ubrehnj7yp,.gq 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 atc;p x2q6rtsn+/cvz -nd three resistors are connected as shown. 2c;rpt-v cq+t6nz x /sWith 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 ammeu njjo:pohlb)e v:r7 x(507t zga-u3fter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesjpv7u(l 75t u:n3e) xh:a b0jz-ogof r.
When the switch is closed, what would be the current in the circuit?


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