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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 metal/csltr(lb6 v * 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 inlt 6 cv*(/slrbterior 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 paruqsum fg 9sk,;sy 5d 5jzm gec.skis98* g65e7allel, the_________each resistorj9 ss szes qksm e*9iy5 dc,8u.gm;uggk f6575 is 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 wire of a lightbu,igxf01 nh2 rilb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens beca1r 0i fnx,ihg2use

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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 aa;g1zi8bnj3r54 iha (syt0 ar re being replaced with LEDs. LED is the acronym for whicr8i14 5tzaan0b ; (sri3a ghjyh 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 lengthe)wnc i// (j8+p+a;mc qwq ; hck:pezq L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in (hp:wpk+zqe iqnmq;j+e8/aw)/cc ; chalf 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. Wire II v9kr xj/q c54m.oh2bnhas twice the diamete5 h2.rxkvoj mbnc/9q4r 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 makbi(o:4e-t9.i d zkyzn h)a 7lterial but has twice the diameter and half the length of wire X. If wire X has a resiz7b )z4kikn 9 (:.eayit-ldohstance 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 materb eqfck:dzv1lsw m82*jw(9b +ial is then drawn so that it is a cylinder with new length 2L. What happ l cdb2:k918bfwevs + wzj(m*qens 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 toc zqu wsi96*iun-q: s; 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 lightbulnqsu ;q6-:u9zs *iciw b 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 ,kq-fh 9c 69httsw,r vsame material. The length and radius of each resistor is:h-r,q hv9k f6twtsc, 9
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, ar7cn nh2iv ftteh43h- -e connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a thirdh-n-c47enitt23 v fhh 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:n,h s3 nb9i-s6iczsa the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is bni9si 6s-n,hc3as: z 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 rig wdq81vq h 4/.ofnkarfar4e//ht. The three bulbs 1, 2, and 3 - reprvor /knqe4w hd4/qa.fr1 a/f 8esented 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 the curr/4yowf *n 0xe7ppu.cf ent in all three resistors is equal, which of the followic0 ne u4ywop7* .xf/pfng 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 circuit composesj/ s.ko2-r(ov 6+hjz5u e mt(enfu 6fd of 5 iz e25 (e6rt6sjnuu-j mvfk/h + fs.(oodentical 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 statements is NOT true t imip*w uyiu.w /+rd0/i ,x fxh4a..tconcerning the simple circuit shown where resistors R1, R2 u t /pw,itxh.dmi* f r4ixa./w.uiy+0 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 togyh hqot4n(yil,v.5 8 a battery. Bulb X is brighter than oh45hn(i gt,ql.y8 vy 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 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 identifiepd,z hsf2-ma93 qhpb-d resistor in 5 seconds oncqpsh-,9fh 2zdpa -m 3be 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 the resistors in the followingmb ox+1j2y i tw)xw 68f4i1efn simple circuit have the same resistance, which would dissipate the gr12f6i1)8ixfeb wy wo +nmxj4teatest 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 6.0 Ω ren4d +thmof* n.8gv, vbsistor is 1.0 A. What is the power supply n.omv+nd*gh4v 8,tf bvoltage 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 zi(x fz6ld:d 7battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dz 67d(i z:xlfdissipates 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 ppnz: f4so nvpja ,ihr0 ;b99y,arallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What4hbov9 s r0,pj,n ayip;:fzn 9 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 ivhft:sa.+ zn;s rated 1200 watts and 120 volts. What is the maximum value of the current under these conditions az:;hf+ stv.n?

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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 resistanc,omu s :gjghk )wt-0(gw18wjb e of a 60 watt lightbulb designed to operate at 120 vj8s-tobh(j0) wm1w wg:k ggu,olts?

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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 resi 6kz+ td2evleo2dt5j6m :yhzhto2;4i stor that is dissipating 36 watts of pde :hzh tmt l4vodezk522o+j y6t6i;2ower?

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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 clo,q blvoc:15pcgshb1;hmm3 2+rzk/ z fhw:g j+thes is marked "120 volt, 600 watt.” In normal usesmvc 1+j m5 qr,gh;b 2+h:/pg1z3fcbhw kolz: , 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 following resistances b1 sj/93g( kndx.keiz could NOT be produced by a circuit containing only three identicag3 ie.k9xnd(s1z/ bkj l 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 e kl pnmb-8.oghwisb y/ b):y/(quivalent resistances CANNOT be produced using bw-poy (yh8s g:.lkb/bi) /mnall 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 connected together in differe-gng xg m)bz706l* ysjnt configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produc js7*yg0b z- lmngxg6)ed?

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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 i22li ht8td3riq8 j8 qis 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 resistd i2i 8q8t2lj3htiqr 8ors 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 and R2,p ,xy(iz:v .vy are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following stv yp x,iv.z:(yatements 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 h c:zgy n+k7v6emc w(g1as a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kc+n : w6z7g(cyg1kem vg 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 th0pywy:-lp u hf0ryt65 at is dissipating 36 watts of u-hp5 fl:w60y0trpy y 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 heater draws 13 amperes of current when con e0g7i:,oeft, *xehpf trhr;:nected to 120 volts. Ifo err0:*fi 7 h,epf;x h,:tegt 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 100W lightbulb lit contpd/qqlqro 8b8a1 zf/tf.k 7)rmukw *)inuousl*.l 8rokqzuf f1mpqqwt / )kbr7d)8 a/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 curreny .s2uozngivhx8 u4/+t of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best rephinx/osvy+.u8zu4g 2 resents 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 computer)b5quv fi g:cv, qwj a*j,-rx4 rated at 500 watts in a 120 V circuit. If all computers are plugged intoqa, cx r4bi5fvq*):wg-v, juj 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 co7vvpb0gw . y1unnected to four resistors to form a simple circuit asuby. wg v01p7v 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 3-e mv zf(m1l cw r8x-)b*tfbtsimple circuit as shown to the rig f -bz(-*fl1et8 v3r)mxbcwt mht.
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, pnetm/cn.tyoo) -e8 4a switch and three resistors are connected as shown. With the switch open as shown in the diag e.)-omot ne8ypc nt/4ram 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, z c 5k1fj8d8khan ideal ammeter, a switch and three resistors are connected as shown. With the swith8zj5fkc8 dk 1ch 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 resisto +8ld8r3p:v zdg uen4drs are connected as shown. With the swpd3rzdle vn8 +4gu:8ditch 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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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 uhuvrf* 9b2 .y)4 6lyx;ncaawis the equivalent resistance? Assume th;cr6au hx2f4 .9uwyv n by*al)at 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 resistan ;f(svnuq;c ymx a;d3)) d9dpbce of the circuit shown to the right with res;3mdcqyf9vp;a bsdnd) ux) (;istances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 inv bp cs*f2g8d8sj:6i f a combination series and parallel circuit to a voltage jd8fp8ivgs62* f:cbs 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 b8okz2 ,no x8zqc+/ xzcelow shows five identical resistors connected in a combination series and parallel circuit to ao8o 82qxxk /nc zz,+cz 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.kax(:rbmfn+ ayqy 4o v 7v19+y Which bulb willrvva7mb yy++xfo:q 9ank4y(1 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 switch *m 9pqv glfm30and three resistors are connected as shown. With the swqv39pg 0mmfl*itch 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 and thre9wgt lu ;dr65ze resistors are connected as shw gd u;zl659rtown. 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 batte.je(dayk3 c;(4 esxp jry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.4a(d ee ;.scjy3(p xkj0 amperes.
When the switch is closed, what would be the current in the circuit?


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