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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 exirwuyho+ 3/u h6sts in the metal resistor connected to the battery. Which one of the following choices best describes the direction of elh 6rw ho/+yuu3ectron 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________aukg6 w vbx(j9o*+8dfr g)xr:_each resistor is the j g):6fbox9k r(rd+u a*xw8gvsame.

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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 fiuq*eqn jo ,2r8sw9dd +lament to bedq2rj*uq8sw, 9 nd+oecome white 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 are being replacddq6t (// jasxed with LEDs. LED is the acrony/a d(6xdj/sqtm 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 rrxmk1d.v ejz ngk 36-oyy9q -pu7ho:0esistor 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 9zko3hg - nouq 0ydy pm.xrj61-kv7e: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 oa*t7v2m zuzf1()n a yef the same material. Wire II has twice the diam2m zfa1tavn ez7y*u()eter and twice 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 hajuq3z )vl8h09e:uyty lf the length of wire X. If wire X has a resistance ofeyj:vhqu)u 0t93 l8yz 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. This piece of material av)mb4 n 7+zphb rlp(r4n,mt9 is then drawn so that it is a cylinder with new length 2L. What happens to thpnarp+( ht4 rvzb4 b,m7nml)9e 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 wanhweey7i bmm00 5- icw)ts to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the 5 byewcm)70whii 0-emlightbulb 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 ir1 n( fwdp*b hq.qz. 1qc/6lksame material. The length and raf6iq b1/w.kzh( dp* 1qq.lc nrdius 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 t2ddsi44 rsqf 8o 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 of fdd8i qrs4 s4f2our 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 vlguf75ds(3x has internal resistance 10.0 kW and the ammeter has3v us7dl 5(fgx 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 z7s ;n+zru/zfto the right. The three bulbs 1, 2, and 3 - represente7/zzsrn; z+fud 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 electrippbcan)9r 4( ucal circuit at the right. If the current in all tru bpn4)(ca 9phree resistors 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 right represents a simplpk2/6tw(9iw1 jn-wdeu8k q xje electric circuit composed of 5 identical light bulbs and 2 flashlight cellpni 1eu-kj tdw/62q ( 9w8wjkxs. 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 y6fksqj+uuee /7/1ja g jl--cfo5 au4is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resista7yfu5u-+ a4-jge/ql1ujaoks/ecf 6jnces?


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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 8n j5i h.-gf8 /iugxg lbn8bb.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 conne uhxn/lgib8gb 5- .8in.fbj8g cted 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 throughgjt,p3fwkv5j. 7 oe2gt3 3xu o the identified resistor in 5 seconds once the circuit was closed? e3ft373vw. ,j5ujkx g t2opgo


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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 following simple circuz.lovq r7v18vhef z9 7it have the same resistance, which would dissipate the greate9 h1ov r 7.zlv7f8ezvqst 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 th8yglw/n4 3u2:.z n e g ,uh0-sk smzx+cu9surprough the 6.0 Ω resis- 0urw u8k 2u/elcm,z9s4s uynx.hgn g 3s:zp+tor is 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 sen4ato o4q9fv; x,*v rvries to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates;,fnxq*4v9rv v oao4t 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 a b:f )jm(4vl wc 5f0qtdwattery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What )t5dwf 0:vc4 mqljwf( 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 coi4uab d c1-u/anl is rated 1200 watts and 120 volts. What is the maximum value of the current under these /dnauac -4bu1conditions?

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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 to opu5a yp9 j* elh(,tfko+erate at 120 voh 5uy,ap+otej k f(*9llts?

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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 (e 0llokx5w-*2hewj zthrough a 4 ohm resistor that is dissipating 36 watts of pwe*l5k xeo(2jhlw0 z -ower?

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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 pres vec xmeb*t,(83ab k bc:pj)y:s clothes is marked "120 volt, 600 watt.” In normal use, the current in iteb c:8tep*b(:,3j )bckmyxav 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 NOT be produced by a circ in 0c1-rvxljz(r0cu 6ni(yg0uit containing only three identical 6Ω resistors(zc100iy -rcl0nrxgnuv6(j i?

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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. Whic8 8s fb1qln,dpz svb9(h of the following equivalent resistances CANNOT be produced using all three redqzsfn1bb(,8ps l v98sistors?

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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 va,/bwwwg +5vfz7j1fn clues can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistanf gjw/1c+nwfbvz 7w ,5ce 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 ahb5tz7 )uj9 dvj6lwr; battery, 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 bauz; l b65rtw79)v djjhttery? 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 o z-nhip nm2k*/cs u, wf6d8nnqo,40m resistance R1 and R2, are connected in parallel, the equivald6n8miznp/2h*n4 c,s wf- mo,u0qok n ent 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 it has a resistance of 12 2e,)42 ssiewdfqafrxv 1,c*nΩ when operating at 120 volts. What is t,ai2 s,dxq2reff)c*s e1vwn 4he 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 througkp03 lq,1 mndlh a 4 ohm resistor that is dissipating 36 watts of power?d1l3mkn ql,0p

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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 13rmd s5wv(d1t2fbkjsa +v: +0 t amperes of current when connected to 120 volts. If the price of5aw+r2ksm0 sd(1bt:v ft jd+v 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 lightu7 ;wt/,p8nzvn1 d/nqe pf/sfbulb lit continuously for 1 year at apntfq/n/vw ,dfzn 1ue/; p7s8 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 px3u nm9t5zd*qower of 24.0 W associated with the *xutzn 395dqmbulb. 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 family of 7q/qr x(pmv 4 -;aqr/v35gwjahaylm :six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circui/rq 3yqrvl:aapgv;5qwjx- 4h/ (7ma mt 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 resisto2wa61()b-rp/ qi qhjai9opetrs to form a simple circuit as shownaoh /rq -peb6a29itpi )1w(jq 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 formqlqhz18 0nc7fqus6 u4 a simple circuit as shown hzf6q07qu48c s 1lnuqto 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 a: zogt 1tt9(o1/bkirire connected as shown. With the switch open as shown ib o ti1o/:(z9r1g ktitn 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, 6*p8o+v1gjyr zvnj*k0j jp/ f an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readp1kyvjnjgp* o *v 8 60frzj+/js 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 g(v1anmz b9x 0 2fbpo)- ntx)eresistors are connected as shown. With the switch open as shown in the diagram the ammeter readn9n( mgv-pbe2ot1)bx a0x f) zs 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 circuk htya t,,zfbf/*dd4 :it shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internfy,ha,dkbt f/t:dz 4*al 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 the circuit shown to kz9qtwd ,1 t*dthe right with resistandz k,wt9dtq1* ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connec)+j:r r/3c*ej51rfv cbj wnuited in a combination series and p) 1ivcr u5rn *frj 3/+:bjwjcearallel circuit 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 conneva t8xp9eou. 6cted in a combinatio6x 9av p.8otuen series 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, all of the bulbs are identical. Which buv209ugr qh-5a,yvwxtq g 2a ;rlb will be the brightea, v 59vw0rg2qy- g thx;qra2ust?


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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 re e,ka *s(,eam ;fm lgbdar,3/l0dc4lw sistors are conne (3esf0c am,e4l ,dwdg*m/;lb rak,a lcted as shown. 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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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 swityzichp1+m,aw8j0 4sech and three resistors are connected as shown. With the switch open as sje ap1m 0 zwc+4hyi,8shown 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 resistors ak1ms+f4;rnq x+ mv rk8re connected as shown. With the switch open as shown in therfr x8;41mqvnk+ + kms diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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