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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 resistor 0 icl-a) yetf4; 3xhmnconnected to the battery. Which one of the following choices best describes the direction of electron flow through the resistohlc-ei y4n0;m)xt 3af r 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 i/pckca;zu* kg*a*- dvn parallel, the_________each resistor is the sam/ g u*cvc*a-adzkkp* ;e.

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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 filamea8 d6k3m x.e,rmo4mmp nt wire of a lightbulb causes the filament to become whia3p.d 8ok6 mm4mem ,xrte 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 lights a( 60mvvlsytf4w6xq swh3ky ;,re being replaced with LEDs. LED is the acronym for x 6;fyw(mhk60wlsy, qs43vtvwhich 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 grapboz-cx uxhaq .1thf0a(e7w7zyp7 6yro h-*.xhite resistor has length L and cross-sectional area A. It is to be placep67ufhwxo 1z0r- qo.hb. x-7ta yce* azx( 7hyd 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 matyh.29f0x-a+ b0vev j7 3hijpz fsv4gqerial. Wire II has twice the diameter and twice the length of I. If I has resistanchvxp 40g9-7jv 2.zav q+bffs 30jiheye 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 twictp fxqh7:)1+bc disa +x)oc5fe the diameter and half the length of wire X. If wire X has a resis:acqxfd +b o f ))ixs7h+t51cptance 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 lene*:/ bz .v2kskc l(tsbtl5j, fgth L and radius r. This piece of material is th.bl:/tk,5 c2vbfs( *jtzlseken drawn so that it is a cylinder with 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 Thomt+ z)ied/(owgas Edison wants to make a brighter light bulb. He decides to modify the filament+id/ )(ze otwg. How should the 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 ma q18. p35tumqamk9jg yde of the same material. The length andqyu8 91jmgt.a 3p5qkm radius 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, zo4 pe )bdej8*ddt+7n4oq- yv73rpjlare 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 rn* p3 q7l)jz- b48p edjty+vdo4eo7dof 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 6wxa 9w:,o0ww u63r lkb raln:ie2x3zthe accompanying 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 voltmeter reading is most nea lae,lr:i o: knbw66wr3 xxw z92w3a0urly:


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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 circui ad d5ung:ss7hl zu)7na98)gm t shown to the right. The three bulbs 1, 2, and 3 - represented as resistor:n u duzm58)9s7g7nhasd )gals 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 electr1wmk g)ky*, bqoy5t4j:j g t0hical circuit at the right. If the current in all three resistg ym5t,gk4 *jb tko1)yhj:w0qors is equal, which of the following statements 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 righrjyo/8rv2c wwg (j7a2t represents a simple electric circuit composed of 5 ider27 cww2 (/ogavy8jrjntical 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 sph :.)sibs ys;app0j .imple circuit ssp: jb .s y0p.);hsaiphown where resistors R1, 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 and7jt9swina+.y Y are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X an+y9nt .i7wsajdY 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 coulombs will pass throughql ) h)fldp)pzk497ph the identified resistor in 5 seconds once h)zpfkd q4hpp))9ll 7 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 *zprl7 ,b4xle the following simple circuit have the same resistance, which would dissipar*4l e7xp, zblte 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 the 6.0-m k d4,wz9ehos6)v7r 6nwomf Ω resistor is 1.0 A. What isn w7-z4okvw6h r)9ds ,f o6mme 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, h d6bf*qem3h eh*6jx( and R3 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 volta6jhf 3ehdbqm6*exh*( ge 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 coeehjn w)v /n* +h8eizo+m-e4cq t 6s4unnected in parallel to a battery. Suppose R1 has 2V across it, R2 = 8 eeo/ si- tchune+w)h *zen+qjm 6v444Ω, 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 and 120 volts. What bb ui (a(cg2)dis the maximum value of(ab2c d(ug) ib 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 resi:m,w af(z9un5q god2istance of a 60 watt lightbulb designed to operate at 120 vzdgm,a 9u:w2fio (nq5olts?

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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 resislnx vy+(il vh32v 5(h)v(fa mytor that is dissipating 36 watts of powel2)hvv(ny +af 3vlm(i vy5(xhr?

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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 "120d,quon (: v 5g jc;m,wqk+w7fg volt, 600 watt.” In normal uqmgd q,o+wc,kgwf:vn;ju(57 se, 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 following resistances could NOTd.( ; 7etqq 13jkllycb be produced by a circuit containing only three .dl q7c1qej(k 3 ;tbylidentical 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 equivalentqh hkjn0:qc0; resistances CANNOT be produced uh0:qj0qh n;cksing 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 dit-xfisnmg.k/h08 j 3q e/t6yl,tp 5yzfferent configurations. If all three resistors are used in a circuit, how many different values of total resistance can be prophiyt5n/ l z, - t3kxtg/em. jyfs08q6duced?

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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 batter bw-cgn wqed90qox -9(y, a total power 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 battery iq-9qo0bd9nwe -wg c(x s 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, arel9 qjq(p+wt6dx e nx-1 .gb2uu connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the followij w nt9u(g6.xqu -bpq+e2x d1lng 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 thatsi*ioxbh 8,yd v0ocm61 58fxq it has a resistance of 12Ω when operating at 120 volts. What is the 6mh01*xqo c,8iif bxo8dyvs 5 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 is dici j7 /stww,e0dy2 gc(ssipating 36 wattsgcwd,tys(07cij 2we/ 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 draws 13 amperes of current when connected to 12xcl6 abs*h /9x0 volts. If the price of electricity iabhxl9 *x/ 6scs $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 costfs5g-u0 ile cnf6o j5y 3qrr90 to keep a 100W lightbulb lit continuously for-r0f6 5flq sgonryje9 u30i5c 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 powere0;swyy 4wq(e0u1 abx of 24.0 W associated with the bulbba4(yyw0 uq;ew0x1e s . 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 wgjw 92lsum s5-,ek u wj*)*acfamily of six owns a computer 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 -u2 )js* w*c u5wj, emkag9swlsametime?

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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 to form7y ;md uv3oqo5 w9oxs am*5 6fw4gy)gi a simple circuit as shown to to*o9yy wuiwm4 fo 5d;56xv )g7 m3qasghe 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 con-h sez2ds 7v ksw,a+2nnected to four resistors to form a simple circuit as shown to the right.a+shws2v7- e n2z,dsk
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 battem2oftb3gu(f3 db9r q,ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch orb2udm ,qof 3b g(f9t3pen 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 thregw 4i4md 1wl, 5+onklae resistors are connected as shown. With the swg4,+ dia 5lonw lm4k1witch 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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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 3)bz(pj gpipq/dza4+bf v3vh 1:3(rkmr-q ak three resistors are connected as shown. With the switch open as shown in the diagram the ammeterrrpvzab4 (: vpf( qim)k-3 hzq 31kpgabjd3/ + 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 equivap/ 3o5my-nuoq lent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have uono5 3qmp -/yidentical 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 r0tdla*lnf04rm 2 /vvp esistance of the circuit shown to the right with res m0vt pan2*4 0ldf/rvlistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identicapszd 2 8 2nm(lu-l74r,nabc 2*djbeuql resistors connected in a combination series and parallel circuit to a volta2 2ql(,dz2b jn7lp smdub ecr4 8au*n-ge 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 combir9;s 3e ;4fsm 13epe7bfqg/zlm yd 5ht-a q-xnnation series and parallel ci5;- nqth 7m31l4bd9m efgr- /zfs;ex3eps ay qrcuit 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. Whi/xt(2z m lmv :7ap(cne2 zb1pich bulb will be the z2(it avmn :/z cpe1(2l7xmpb 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 resis r+xy018gggejtors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amx1g0 8gjyre+gperes.
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 batternuc*0 36xoq mul 1r/yyy, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the a13 yx06rc/y*unuoqm lmmeter 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./ lxwu ake-*b, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shownxb ea*luw/ .-k 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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