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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 meteph0 u4tibf56 .o)dn/ mx r,zdal resistor connected to the battery. Which one of the thb4)m df,ue/nzr p6id5.x0 ofollowing 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 c wj/4razd4yv )ih7 (bkonnected in parallel, the_________each resistor i) y/dvr7(4za jwhb4iks the 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 wirc,,b7vx y z7mne of a lightbulb causes the filament to become white hot, while tvb7xy, ,zcn7mhe 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 replaced with LEDs. LED is the aqn:) ns:b*;coek s *u6 qa+uadcronys;)* cuk6ea a*sdq n+qou:b:n m 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 and cross-s*ig+51*cbzt xytmub4 4 tmt.-v8wp,oy nj:bx ectional area A. It is to be placed into a cir4bo 1.**8bxibcyuvtwzp mnj:m,4+t5tt g -x ycuit, 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 material. Wuzjea5pi;9 m 6ire II has twice the diameter and twice the length o;69ep uai 5jzmf 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 2 alta-(;rb 10w tjbdpbut has twice the diameter and half the length of wire X.2badbrlw (;pjat 1 0t- If wire X has 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 radius r. This piece of material jih9 h8hy) 1l7ensi+:3t ost9q;uw ck6 pr.znitz)8 ywh6r nhns7u9 9.hclts i:ijk q3+1p ;eos then 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 Edison )8q-kegd1 o74 mp vieawants to make a brighter light bulb. He decides to modify the filament. How should tmdv pq1ok)e8g74 -iaehe 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 ofa agww: u bcyui2);/c7 the same material. The length and radius of each resiw/acu 2bic):7a;yw ugstor 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 in the x; ag/z o 3aqy5-yp;rifollowing way: “Two resistors are connected in series. This combination of two resistors is conno-5zg/ iar3;xyap;qy ected 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 accompanying circu,alg:gd mi *b2it diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. dmil,bag*2 g: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 ri2n q 9 3hapgs+jf5go1oght. The three bulbs 1, 2, and 3 - reprog+5qfg21apjos 93 hnesented 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 electrical circuit at the right. If the7-bn aya7fp 0igt/;;tmuh l3-; vd hxn current in all three resistors is equal, which of vfh/t lg3 ; dnay;t 77-;b0um-ahnpxithe 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 simple electric idx )cra6lif) 9x 8vb4circuit composed of 5 identical light bulbs ali )98cf6 iax )bvxr4dnd 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 l01 r,k .z sujn/2uvfiicm-o +rq.u,his NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistances? si ui2- uhlckmn,r1/.0zv, ru.q j+of


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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 sertnsnx80v0 u:vnfk,x8( h0 d nuw 5gu(eies to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in v8 x5,e x0(8fnkugdun0t :0(snn v hwuparallel 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 thrfeoj29ja+x4h*s 4:,zljzx( l o ru3qlough the identified resistor in 5 seconds once the circjx, hll 3oa2*4zszjo +x uf9(qj4:elruit 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 following sim h7 io6umm v5zh,nd9g9ple circuit have the same resistance, which would dissipate the greates69 mv 7z9dug,m hoi5hnt 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 6jb hv .yug+ w5(zjgu3+.0 Ω resistor is 1.0 A. What is the power supply v yvb3 5 .jjgghu+(zu+woltage 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 seri-ay9v+h 2xjf0g9n(2fbz9 si0ukpw fh es to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 disk( hy2xw0gf99hfs2 9b u-vpaj+n0fizsipates 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, R2w+eqvejeu9( 8 andR3 are connected in parallel to a battery. Suppose R1 haeewe + (j8u9qvs 2V across it, 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 rated 1200 watts and 120 volts. What is the mace1yxiro(1mg: f8 -qt ximum value of the current underf:xr cm io 81-tyeq1(g 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 resistance of a 60 watt lightbulb designed to op8w8zg+y yx;e e2gnt3x 2jk- cierate at 120 vol -n2c8;+ gkyijtxx8e ewgz2y3ts?

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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 currexg+ddsij ,fd; c 3k: :ygimd,35wf o0ant flows through a 4 ohm resistor that is dissipating 36 watts of pow id3y ; msggd:0f3,dakw5ic:,ojd+fx 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 eor7xqxgxgej1h)2r5i7*ox,n* x n f 1to press clothes is marked "120 volt, 600 watt.” In norx 1oxnn *1ox*hr 2ieg5e7q)7fjxxg r ,mal use, 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 fonh1ka*0 yzha 5llowing resistances could NOT be produced by a circuit containing 5 azahn0 yk1h*only 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 followi wv fq+uqa*-c)kx-jrz ;(+txhng equivalent resistances CANNO)*w ucqhq -;-+f+xt x az(rvkjT be produced using 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 cx;ffjpo y)s. + 6pdw0 zky8+yaonnected together in different configurations. If all three resistors are used in a circuit, how many dixysfokpj)w6a 8. ;y0+ypd+fzfferent 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 res:xauol4m4hx .gx .bw0 istor is connected to a 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 salm40ux xohx b:4a.g.wme 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 and R2, arm(cfcw525u q/( wkdag e connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the followinckud(2/g m(qcw af 5w5g 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 12Ω zc pn:*1 v z,zcb6q(ei when operating at 120 volts. What is the minimum amount of p*:( z,e1czv nbqzic 6time 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 b+cwk /z588 at:mpzi da 4 ohm resistor that is dissipating 36 watts of power? /5t+ b8pw8ad cmz:kzi

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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 whyksf+bo*wta:97:ez l en connected to 120 volts. If the price of else9wkot:7al+ y* bz:fectricity 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 continuk2*c fi whi dg3wi.,v)ouslfwii)w32*di hk ,gvc. y 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 4.00 A through a lightbulb results in a powerd6rq -mt- en 557 )lzljlea;iy of 24.0 W associated with the bulb. Which one of the fol57- n)t5jle -qil ed amlrzy6;lowing 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 six owns a com ()(xhosv;zvdputer 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 h(;( vx dzso)vthe 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 h*rd* (f8ojx iform a simple circuit as shown to the right. fdo(j*rh8 * xi
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 formq5d ib n 20hl3bjo1-inen7 pl6 a simple circuit as shown toolndelin12-3bpnh0b 57i qj6 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, xq bnebms1-*m;p1p 5yan ideal ammeter, a switch and three resistors are connected as shown. With the switch nxy;b p qm51eb1 sp-m*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 ideal ammeter, a switch and63wqyt*84 w+t,c*nulq3xtj 1n0fqfx 4bishg three resistors are connected as shown. Withg+i833lxw c 0t ftyhu,qn* bj4wx6 ftnsq1* 4q 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 ammetsh*p solvke s 81/zi05t(z nm0er, a switch and three resistors are connected as shown. With the switch open as shown msz8 0/0h(tzoslk ni1*p e 5svin 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 0p9es0aubqk m 6z wul7y,0 rw(right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resibr 69, epsqlw0u y0k7mu aw0(zstance, 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 xn cnj0rsq)j1xy n1 2a0w s4,ushown to the right with res0ys0 nn x1 2q,x4wanj)1srjucistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fiveryim(g -ykppo/+ 5j1(-ih mnc identical resistors connected in a combination series and pa- mjyp5c(pni (khgi-+or1y/m rallel 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 identica ,mzt zhi4sp4;)u 8efjl resistors connected in a combination series and parallel circuit to a voltage source 4,pj)4umfzt hze;s8i.
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. s qyhpe, ajte 1*p91,wWhich bulb will be th ah,epw s19j 1pt*qey,e 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, 99c. jsi a*vvva switch and three resistors are connected as shown. With thvs9 cav9ji*v. e 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 switch andi xz+0geams 4 2ea/nupr.g)c/; 1qnwg three resistors are connected ;)ux.grg1/ ma ca/eqs g0i n4pzw e2+nas shown. With 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, an ideal ammeter, :jwyzwy (h02n2 s6rlva switch and three resistors are connected as shown. With the switch opw6r(hszn2j wvlyy 0 2:en 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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