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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 cur)mj - 4gbd xgy6;3dkgrrent exists in the metal resistor connected to the battery. Which one of the following choices best descridk4g-xgmd6j)r; bg 3y bes 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 in parallel, the___0z-.k u n;czjr.ic. kr______each resistor is the sakc-u0j n;z..k .rzri cme.

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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 filame . 9x kdmr9k0ovtluur3jov).awp :(q-nt wire of a lightbulb causes the filament to become white hot, while the larg0ular3jq9)o ud(op v. -.wx: vtrkm9ker 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 are being replaced wi1 ;th/scs buwcpitf( )ot66:wth LEDs. LED is the acronym for which one of the ht/6i1 cc;tbw(f6p )osswu :t 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 gra3mqs6ei s wy+q0d1*gf phite resistor has length L and 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 resistivity of the cylindrical resisto 3m+6qgei*sdyq w0 1fsr?

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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 I(dpnb nhrf(d) .-z* 5 d:smxzcI has twice the diameter and twice the length of I. If I has resistance Rc-nm.hfds5bx: n* ) prz(zdd( , 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 mat-s1 qt/w/2pnn mc cw.yg, xdt9erial but has twice the diameter and half the length of wire X. If wire X has.1q /tgccns9-y 2mwdw ntxp ,/ 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 radiuu-:t md f/4sr*lyc* ens r. This piece of material is then drawn so that it is a cylinder with new lenc4/*- um*edlynftrs :gth 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 bvjg,w 9dob-u,wc o 7 7h+zswo2ulb. He decides to modify the filament. How should the filament of achs-bjzvwo +uo, g2,wd9o w 77 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 material. The length and;l5v xm)iq- ot ,brw(t r i,x) lv;qw5(m-robttadius 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, are connected to a battery i)38scw jj.d. snhnkl-n the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor..)j -3lks 8dnnshcwj. 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 accompanying circuit diagram has internal rechqpr y3 uc orr7)ham.q0* *g8sistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading iqgu0hcrocr 73. )rq*myah*8 p s 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 comr ,--s kqo )mmpsve ,.0bvq21wgtky/zpound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as res,pegq/- rwb tzk-,1v)2qm.smvkoy s 0istors 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 right. If the curruy3x s aoe3,v1ent in all three resistors is equal, which of the folloy3 1ue,xv3 asowing 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 right represents a st.7y , ioyzy/tgh0. xx5ej /thimple electric circuit composed of 5 identical light bulbs and 2 flasie7y/. yyzx.tjg,t oh 05t/x hhlight 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 io2:gr+q,gpy ff. u 4vgs NOT true concerning the simple circuit sgqop:+u 4f ggvfyr2 .,hown 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 and0gf9 kyu,h c8/r4yk vqY are 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 battery, which one of the following choic8 fy4 kygr,0cuk 9vq/hes 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 identifkf+rg(u; ukg8 ied resistor in 5 secon(8;+kkg uru fgds 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 th 4g u1 lu)gwuw2hq(d)de resistors in the following simple circuit have the same resistance, which would dissipate the g1uud2(4 l udggwwhq))reatest 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 6kynb5yip*-v through the 6.0 Ω resistor is 1.0 A. What is the power *5y vyibp-kn6 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 sem06q o ut7,zifgnjb 7+ries to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resist, bg m +tn7qzfoiu760jance 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 a;6x/6m up myd:wabi+ vndR3 are connected in parallel to a battery. Suppose R1 has 2V across ia+upwim6;b6 /ydvm: x t, 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 u/cxuufa6(8tc.0gd 4 ll:x perated 1200 watts and 120 volts. What is the maximum value of the current under these co: (el 6/0u4xt8cucau gdf .xlpnditions?

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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 des py7ceim)) 6 -..dwamsjxg(jg igned to operate at 120 volts?pm( y6isg. dwx.j) gac )j7e-m

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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 dissipatiepdbclo: l9+, ng 36 watts of powbcol +e9 pld,:er?

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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 "120 volix7:nm,8+mqsukv vj*m,s r b *t, 600 watt.” In normal use, the r87smbmv ,iq *x,*kv:n+sum j 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 w g nijj816q.tfollowing resistances could NOT be produced by a circuit containing only three ig1 w8q6ntj. jidentical 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. Wh:zmn2 ckk5-pjich of the following equivalent resistances CANNOT be produced using alkcz5 k mn:2j-pl 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 cz 3x1+rme( )tw-epkiman be connected together in different configurations. If all three resistors are used epmik rzew1)3(+m- tx in a circuit, 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, a3eu u;x9f)z(4d9mx; nunec exxuqi -8 total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical r nuuduec9;zx-4x;e9n(ixm3fe xq8u)esistors 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 resistan51num+ l,ty-zqh-fq bce R1 and R2, are connected in parallel, the equivalent -znf5 lmbq-tu h+1yq,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 7rs4k0woq nr6 l-hg6 bthat it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to was-bwo 4r6q6 lrhg0nk7 rm 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 tgkj7 2g 6.8nb-hvse mf-,e gf5z*ea qvhat is dissipating 36 wat.,f65 se gzb*hjng-f7 2 ve -gmvkqa8ets 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 heater3wi)j1b f/dn h l/pq5b draws 13 amperes of current when connected to 120 volts. If the price of eld)nbf5/ wq/jl1ip3 h bectricity 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 +cnljv g 7o*y2 8gsaf:.r,mboto keep a 100W lightbulb lit continuousl,7 olryc2a+:g*fb gv8.onsjmy for 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 a 1s4rtc0hp* v4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents rpvtc4a0s *h1the 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 family of six owns a compu6vuewq4j 7 9qster 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 4 qvue w796qsjmaximum 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 3gc;je a(of+zwc* t j/connected to four resistors to form a simple circuit as shown to the ;*+ojwc( 3cjea/z fgt 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 toh /rf b)tr, k v8b0tc+c(t)uq ijgs9:t form a simple circuit as stvrc/+st(8t:rtq,b0khuib) j 9f) c ghown 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 r1ur iv vpk:c:6r. ,n6tp/vzdxesistors are connected as shownz tpd:.v ikvrxr6,6/ vu:c 1pn. With 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ide8q2ut2hwwx i+al ammeter, a switch and three resistors are connected as shown. i +2w wu8htxq2With 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 thre) tqtioyi;p;(e resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2. qty( ;oi)tip;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 equivbq sbla.e o0p j99w ;q.zg4u+oalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have s oque9 bjp0l.9o+g;a 4 wqzb.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 circulxdg vxx/x*kiwv, )6lz c) wg0 54y9bjit shown to the right with resistances x)49kz6/l viwd* bvxly ggj)w05x,xc $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectujse 2hh(ymos/9cs uc:;7. bxed in a combination series and parallel circ9e uj(/;x.sbycs2 smh couh:7uit 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 below shows five identical resistors connected in a com,xg33l amo7 wcbination series and parallel circuit to a voltage sour ga,3wxl3mc7 oce.
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 ir n;ekq: gy5b57qth+ bulbs are identical. Which bulb nqg5 i;+h7yr:te5 qbk will 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 (vxyxyr.3m c-w vo )*jswitch and three resistors are connected as shown. With the switch open as y *y-vx)vcr( omwj.3x 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 batteru9 nqm7tc*5ae y, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter re7 tca*q5n9 uemads 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 )u,q6i3kjeugq(ed 5fj ri/ x6 ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in (6)uug f jirei3,kdx5qj6eq/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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