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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 thb9eqr ura27au*l siw7),x.i -gg6 afh e 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 interior of the resistri6 a glx7bw 79i2uafr-.,he)s u*g qaor?


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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, tt, 81on1 mbm2dr hfvy6he_________each resistor is th1hy bvmr68 1otnfd ,2me 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 t2*l.ac8zytf .y(6pxr xa)foshin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to th2pfscyf8. .x*xal )o t6(zraye 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 are being r( kn( 3iykp:a)bdwby ;eplaced with LEDs. LED is the a:3ba; y yp ((kwnkb)dicronym for which 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 /wbm.o q4l4xuand 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 the old resistiv w/lbqmu.o4 4xity 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 h..wr+m*iaes qizbe07q sl8,1z ix iu0/8vdhof the same material. Wire II has twice the diameter and twice the length of I. If I has resistancim0 li./qxw08bi sh v.h *euz d+s 8e71i,rzqae 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+sy,e;4 p jcpj of the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would havej j cpp+,y;4es 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.r.y 9f390;k6yjuauxzp0 qirp This piece of material is then drawn so that it is a cylinder with 9z q9upxy0 ;yr63i fju0.akpr 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 Edison wants to make a brighter light bulb. He decidesflrz;dlb/ 2/ju +dl:dtef 9q; bwd2c3 to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more li 3bd9e/qud2+lldc:2j/w;fl d zrb t f;ght 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 mhxkpt3h .-jy8-af1(htqr 0*aqmx haw 441jdxade of the same material. The length and radius of each resi3 tq0fjx* 1(x atkp.1h8h4rdam-j4hh y w x-aqstor 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 htmu6,cb8lg9ew hy 6wf,km5mm:d* wrh7:/doto a battery in the following way: “Two resistors are connected in s6:wbf,h u9lmoc 7w* w5rdh km8 dm6he mg,:t/yeries. 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 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 accompanyi1 7)ytg8;2vps6 e/rkfqeq wit5 m p9aeng circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Thegrsfktp e)qvw;i 1e6eq/a9 7my2pt58 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 qwo6me*t5 im3er./ abc+ c.gtright. The three bulbs 1, 2, and 3 - represented as resistors in g5.ewci3m6 m+qt/bt c.aoe*rthe 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 at 7gfod,b t yv )h.r r y;bjvab*dng6+*:the right. If the current in all three resistors is equal, which of the following statements mhy,)vf . :rr d7+;gbd*6tvgb* boja ynust 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 elec5icve oem+v). tric circuit composed of 5 iden+ )ve o5im.vcetical 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 sbfga3 qv 87jyi;d*z )sz2cyn1tatements is NOT true concerning the simple circuit shown where resistv)d1bqf; *n s yj87zzyia2c3gors 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 andY are connected in series tg40 )x ei n;g:ps7hqemo 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 battery, which one of the following choices best represents what is 0;)hx n:g m4 egpei7sqobserved?


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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 resistor ih3x5dzsd5*b7 h)mnv e n 5 seconds once the circuit was closex ed 57h *sbnhv)35zmdd?


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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 x ft erov1x9v5 nux;a 9-ox:+qe7y eg3 in the following simple circuit have the same resistance, which would dissipate9x xe7u -r+ny5a 1e 3 xo;vq9:oxegtfv 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:163ty kjbdg7bvci+ ggf 4*cy through the 6.0 Ω resistor is 1.0 ibkvf jtc4y:b*+ 3gc 1ydgg76A. 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 series to a 0yudpgp45ki *z u(st;j 5h5**f nzdg *l-vkuobattery. Suppose R1 carries a current of 2.0 A, R2 has 4k5npuodz ;d5v*-5uji0 lg s*k(f*h uzg*ytpa resistance 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 andR3 are connected in parallw 0ijwl:6cpn4h1zx 7mel to a battery. Suppose R1 has 2V across 4c6x17nlzpjw wim h :0it, 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 isewq** d nyusebr/ ;5 9i(nf1r*b rjx*g rated 1200 watts and 120 volts. What is the maximum value of the current under b9 5jnfin(x1*eeq /rwr us rbg** ;d*ythese 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 60 watt lightbulb designed xwz9dtf6 p1i;to operate at 120 voltf9w tp6dxi;1z s?

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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 dissipating 36 wk8 hm* a;sp+holl 09gs.xkdn)atts of powp9.slo +h0a dhgn *8 mks)lx;ker?

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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 isvmd0n6ya1 91 berz; ju marked "120 volt, 600 watt.” In normal use, the current in iz unm0v9;a1de61 jrby t 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 resistances4ks2 t q(k(ael could NOT be produced by a circuit containing s(k alk4 t(eq2only 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. Which of the following equ.y ui+3qyhoqc5isv8n7si (e5 ic l)(mivalent resistances CANNOT be produced using all thos3suh c5mi8c (ivy i( e+7lq5q)y.inree 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 differ83en8nk p6 vvpent configurations. If all three resistors are used in a circuit,kn 388ve v6ppn 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 ,im6lzj tao:dhou (+ ,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 resista,,do6amjot (+iu:z h lnce 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, 45e nw1hx0(p6mpid bzhaving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statepin zwxm(d0 1hb546pements 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 viqvy99- a+36qe ai qdoperating at 120 volts. +qi6 eaqa-vi9dv3qy 9What 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 ncsafvz(en 3t7*rg; ;flows through a 4 ohm resistor that is dissipating 36 watts of poez7 f (sn;*c t;nag3rvwer?

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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 *una,p3vp:xs, kz gq1connected to 120 volts. If the price ofs1a,*p:,zpvu gxkq n3 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 a 100W lightbulb lit 37,-uzquzy g0dfw-p,z rk y .1jwgt;xcontinuously for 1 year at a rate o1u.t- yd zgk-7;, y0zf3 qw j,przuwxgf $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 throught2r 6vq7 7rq9-iz kru3vn)m fm a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the rek)7r qumr- ni369mt rvfzqv72 sistance 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 computer rated at 500 wnq;:xop.mn2c(o 9c6or *xg a.z7 gfteatts in a 120 V circuit. If all computers are plugged into a single circuit p:7mgpx t;o9fn o6 r.(qoxn czae*.cg2rotected 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 to form a simdwhv yrjo7:iw:gdke 17-q1p 5ul t2y(ple circuit asyktihdy7vl7:j5 e:(1qpd-g2 ww o1 r u 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 ; ;gwlri:t2hesimple circuit as shown t2wt:;hir leg ;o 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 ilsg0w 7) vwc8bdeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amm8b) v7wgcwls 0eter 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 three resistors are.ptzl)9be5pt connected as shown. With the switch open as shown in the diagram theb5) ttp pl.9ez 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 iy 7l2q ij(alvt8 : d.f9so:pwthree resistors are connected as shown. With the switch open as shown in the diagram the ammet2i:lip7( laqws.9oy t8v fdj:er 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 s-r41 xmrv m1(p.mnaomv61 sls)v lq) shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistan )mrqm1sms.(1-6n lvx)opasrv m4v1 lce 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 shown to the righn5 wzn(;fk2r. y5o4 w s8jbiudt with resistancewn.rk; 8j4wfus niz55oy2( bds $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a com:thyb3+vhz ,zbination series and parallel circuit to a voltage source.h+b3y zz :,vth
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 resu:zph.1/ l lug 3y;kplistors connected in a combination seriel p:hg.p1z3 u;/uykll s and 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, al yqo pnayesl,y6048 i9l of the bulbs are identical. Which bulb will be thenq s0ey6al4, y9po8y i 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 swi kiq5: e/zc13i *rjhx9f)jg fqtch and three resistors are connected as shown. With the switch open ashiecr j*x qfj3 iq 91k/5)zg:f 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 ideal ammeter, ts*me/x9*o ii a switch and three resistors are connected as shown. With the switc *oite s*xi/m9h 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 ammeter, a switch and three resistotn y+7 8z eua6jwput3.rs are connected as shown. With the switch open as shown in the diagram te6uy3wpa. uj+ 78n ztthe ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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