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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 m76 ugun)hx) tq1w )nuthe metal resistor connected to the battery. Which onw)m1ug6htnx)u)n 7 uq e 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 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 ijvy*r- a/i-f; 5xkhxf n parallel, the_________each resistor is the * -vy;fikxj/-fa 5xhr 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 thin filament wire of a lightbulb causes the fud9 pi n7dw+7ro2t2vc ilament to become white hot, while the larger wires connected to the lightbulb remain much cooler. Th7vwprti u2n7 9+2o ddcis 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 replaced with La8 +a jm*nsfl2EDs. LED is the acronym for which ojm8f+l* saa2 nne 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 cross-sectional dv voom ;-fzhcd ;21*z;.r)yzmvwf+xarea 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 )h1;vzm ;oxf f*mz yvz;+drw.cd 2-ovratio 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 material. Wirf5vd,rlb7ifjy-,;mzdj; d 9o eer-.k e II has twice the diameter and twifj;-7 f j,zriye.5dmd ;e v l9b,-ordkce 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 diameter and half r 6y ns(+xxfra9vh,3u the length of wire X. If wire X has a resistance of R then wire Y would have aan, u+9x3rxyhrs( v f6 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. This piece of ma lq7o-:egtdfg y)00g 0hi.y dp2mwu5 bterial is t0e ib-d0 y5.fy )ptq2ldwmggh0u:g7 ohen 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 Thomas Edisp zy- u-)pfe7 poa3cnza0u/)mon wants to make a brighter light bulb. He decides to modify the filament. How shou/p-0 opz 7m3ufy)a)pu -naczeld 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 made of the same matd(lsuw;) op76 nvcv6pf);tc yerial. The length and radius of each resistor i;p6ync lu;tcv67) wodsp )v f(s:
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 connectlt f;/x2r72 s5dw; dsjtco r0sed 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.” /dr;t0;5 cjdr xto7s2wls2sf 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 t;da7-wr/lkh c he accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resi/al;-7 wrkdch stance 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 right. The three bulbs 1, 2, aqk /5:jqup.lhnd 3 - represented as resist/uqj 5k.lh:qpors 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 electrical circuit at the righ4wp8usl,jidqh1c1s(xooowq 0 4 nl8 :t. If the current in all three resistors is equal, wu qhpd:icx lj8qw,4o4 (0lo8n1 ss1 owhich 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 rigr jk(5 9u vw7st7ezrep,-e*sjht represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Wt rpw5ez(skrs-v7* 9,ju7eej hich 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 statementb-x93aqsm9v5 xrlkm - s is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistanb5 x9ma3k x-vrs-9m lqces?


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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 is bztec.cawy) )a229hqi 2p7 zxv qyl:4 qrighter than bulb Y. Assume all circuh2 yl .qy eiq74cacqzv2t:)pa92) zwxit 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 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 resis 5iie ,ri.wd8slt6oa1tor in 5 seconds once the circuiti 6d swl5 ire.i,a8t1o 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 followia7n 4bv6lms,qmb+-fyng simple circuit have the same resistance, which would7la ms 6y qvm4bnf-,b+ 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 curr e0b3l7k:i livent through the 6.0 Ω resistor is b:7vkll ie03 i1.0 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 series to a batteq 8/d/lsecq, ymntq-xh6oi ,7 fjz 7)ory. Suppose R1 carries a currentn qd)tj - q/sxi7 om8lhqe6o7fc,y, z/ of 2.0 A, R2 has a 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 parallel to am81mvy cbso7jm . 12gj battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissmgvsy. j1 81 jmm72bcoipates 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 coilasnb ni:.)d- p is rated 1200 watts and 120 volts. What is the maximum value of the current und-p.a )b:dnsn ier 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 resistan,j +k sun:ofo,bxm))kce of a 60 watt lightbulb designed to operate at 120 volts?+b,x u)oom)ks k,: jnf

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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 b.lnie 2bocw/ofei (j,3 4 d)fthat is dissipating 36 watts ,bwno d)4ceiojfel3.fi( 2b/ 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 "12k+ z-bg b:adq 5qri:p;0 volt, 600 watt.” In normal use, thegd;+q:5 ibqzap:b -r k 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 resistance ypgoulz (dr- *h)oc8)ilh,1.i)llsy s could NOT be produced by a circuit containing only three )lyls1ryp-i) 8.l(,l*g z)dco iouhh 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 followin4qnu3x qs gf t:1itd:/g equivalent resistances CANNOT be produced using all three :1 :d/q t3qutxni4fsg 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 differe b7vp *lesnd*k8p2k l;nt values can be connected together in different configurations. If all three resistors are used in a cir l bp* 7pnks*8kdv2le;cuit, 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, g azz.s 5s(okj8r x4yy),:uyqa total power P is dissipated in the circuit. How much total powesx5y gs4r z)o, y yqzjk:.8a(ur 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, having resistance R1 avh24w5xy;klbhrc2 /sg 3xew( nd R2, are connected in parallel, the equi5;kbc4( sh/r 2l hxw3vx y2wegvalent 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 ity9 dv4a9 oh,d5eg6t gl has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time thg46 e 5,ygvld9atdoh9 at 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 flowsn5/0pknpax ulzn.vh.gi/f); through a 4 ohm resistor that is dissipating 36 watts of powufnpznn.;a 5g /x/k) i.hp0vler?

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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 currente n0 l8.r5dsd;:g0iiz:uo6hddt. e r k when connected to 120 volt.lntr0e .g0ui zrdd6d58hode; ik :s :s. 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 a 1* on;h9v;sifl00W lightbulb lit continuously f;9*of nlis;v hor 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 throo hb4fh2u -phvya,xy v/ro6,(ugh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resist ( h2po6vov4,fhba/ uyx ,yr-hance 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 compu8ya./pft()hy 9kha6d4vf+s6o pty j/na0ysi ter rated at 500 watts in a 120 V ci0o fj86fap/s .p+h4yai (vhyy)96skn taty /d rcuit. 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 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 ibm xg aof/ r /m6cugk+.*l/ .rae2m/hform a simple circuit as shown to thgm/.r h/ ma2xu. */fao6gi remc+/lbk e 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 isj4efq8yh(x.) 7dqpxm7j f ils5 xir;1 connected to four resistors to form a simple circuit ah jyi8)e7qxi(x ml x d.rf 5;pfqj714ss 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 and three resistors aretcv+r3z tyn j4 o18j 0odfl99w connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampenov94tcjd +0y wtrol 18z3j9fres.
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 :05g 5mk, +hi stng owk(u(ckmthree resistors are connected as shown. Wt(gk5+ounkw k5ghmcim0:( s,ith 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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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 resetdr i2ia )0u3vo 4;otgiikt8eu2 ;r ;istors are connected as shown. With the switch ope8it4ie 0u;gr2ek2t iir;dt v;u o3)oan 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 to the right, what is the equivalent rey3q4tz5p2 ( jy rhwn wk)30sh wtesz02sistance? Assume thas3 whz0pq24et ()h3jyrns5wz0 wyk 2t t 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 thed5n1e5 l )tp*5v bkpse circuit shown to the right with resistance5s5p l5*pvektebd1n ) s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 b*;)k megfau3hdrsrikpe6 /fv)c *5t9elow shows five identical resistors connected in a combination series and parallel circuit to a voltage source. *6rm )sev c93frf*k5;ip kdute)g/ ha
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 resygj( 6yw;k6axistors connected in a combination series and parallel circx6k(jw 6ay ;yguit 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 a61xrteje 8n5iq ogz6-(lh/+ sqs (rl are identical. Which bulb will be the b8h(rj/sxg i(oe+q1lzt6lr 5ea 6s- nqrightest?


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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 andw(kpb :-)ns qiwvj.;l) j6ey v three resistors are connected as shown. With the switch opy jj:sk vb;wq np)w-e )(6lvi.en 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 ideal ammeter, a switch and 0ru yq9s(en9sn 1za.aqd -js:rdua +;three resistors are connected as shown. W0;rnqa9sadr:uy9.s a ( j+d-e1nz suq ith 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, ,dzslo e1;u1aan ideal ammeter, a switch and three resistors are conne,l ;d oez11uascted as shown. With the 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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