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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 theo)dvr5-oc .e xb-psfu r w9v 39c;)jmj metal resistor connected to the battery. Which one of the following choices best depj.du5r -r )v9j)ovxbc3w f-9me ocs;scribes 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 arey/n/ 0qvb+ow 42.qp cnyc,z nn connected in parallel, the_________each resistor is the samennc,.vb204/ncw/yo+ qqypz n.

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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 l :sz(e51qxkc.j6qvv9 ; fau smightbulb causes the filament t csk(j 9a5sfmeqvvu.zq:1x; 6o become 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 replaced with LEDs. LED is the 76o7h9 mzvowy/ xu.ksui4m5c acronym for which one of the fol9hsci7 5kuoo w4z7x.u6y /vmmlowing 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 f( wa3hzlf;c td9. u59w.sh 4sip, zcvlength 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 Luz ;4ht lw (cs.5fizcvh9dpa 3,fws .9. 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. Wxnb+r-xpowfpc3+l )i5 z, j- xire II has twice the diameter and twice the length of I. If I has resistance R, II has resistan p,px+ fzoj3xx)rli+cn b5-- wce

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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 madeqb)(si1 :mhcsa s1nv 1 of the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R ts1)1(:mhqn sscav i b1hen 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 resi,fk /pfnwlon hu91 e)5x b;q,hstor has length L and radius r. This piece of material is then drawn so that it is a cyl15xe, hn),nopqkw9hlbu/ ;f finder 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 wants to make a brighter light bulb6u3bit.gx;ko2g (y s:f hme x:. He decides to modify the filament. How should the filament of a l(236 x otux e:sb:gk yf.;hgimightbulb 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 r41c9 9mud zhpxesistors are made of the same material. The length and radius of ea9xdh1czpmu 94 ch 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 Rq4v7)/cbpbpk9 +o ho k, are 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 third resistor. This set of three resistors is connected in 7 p 9)chv/o+kpbkq4obseries 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 resistancei,leanhf 9x) 9 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter ,9i) 9xlh fneareading 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, a2 ,8hdtmm*todpm (x2znd 3 - represented am (d82dp2mxh *to,tz ms 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 rig1x gjryd 2w4))qudq: 9598azgp behxlht. If the current in all three resistors is equal, which of the following statements 5pe)gaduwzgj xrqx: 49hb )y128d9q lmust 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 circuim qx xv9h4 z+/d3ith-it composed of 5 ideni x-h d94z /qiv+mxt3htical 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 i roe4m(luh b w62)4 lf,ybev+msy)oq.s NOT true concerning the simple circuit shown wv4b) .4ews blloqmh2fem6(o) +y ,ruyhere 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 andY areylq 5quhz;6(w connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circui6h zu;q5qw(yl t 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 3+fj -nqz++ww yka mg,is3l2g resistor in 5 seconds once the circuit was clz,2q sf-yaiw+ 3j+g3 ng+klwmosed?


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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 theq y:);s5efz zhzb*o.6he a*eo resistors in the following simple circuit have the same resistzzeqzs h*y ;o*bo: 5e.eaf6h)ance, which would 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 accompany+apnln(6mjp 5slm/3 zing circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltagl/l aj(pm znsnp 5m+63e 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 )8/akse pp:m kR3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of pp 8k)kpmsea: /ower. 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 resh+ j;l)rwtvoewb, e.0istors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the ,wl jewo)ev;t. r+0bhcurrent 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 6j2we ec-z,uaand 120 volts. What is the maximum value of the current under thesec, awe-z u2je6 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 desinx5r4 +alh5 kogned to operate at 120 volts4 lo5h+rakxn5 ?

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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 resistvc5n ppiwx ws+.758q zoyf0z6or that is dissipating 36 wat5wpz0 xow78n6cf .q+zs iyv5p ts 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 "120 volt, 600 watfzar1ocjv- -qwf5 1 zo2yf14l t.” In normal use, tha4wyzf rfl-o q - 11j15z2fcove 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 followinyy/qw yk.+b. cg resistances could NOT be produced by a circuit containing only three identical 6Ω yqb .c.yy+kw/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 th uud,j0 s 8j+1jyo 3bsvya 4,qgn(-rwae following equivalent resistances CANNOT be produced using all three resistor3b us4 a+yd-j(sjn80o r,gaq ,1j uwvys?

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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 toge a h6nn,ixu7to2 wj9f 1jsrwwi8nt2: /ther in different configurations. If all three resisjnuxtn8sw9jof2, n whwt2/a i167 ir:tors are used 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, a tote idfgr 09o;l6al power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identi6 lroei9;g0fdcal 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 resish2zv2s3std j2..5 le r jvno0qty-.g xtors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combinationodys.e5- q22t3t2s nj lxvrjvz0 .hg . 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 c3r3e.d ion+tthat it has a resistance of 12Ω when operating at 120 volts. What in.3e 3tc+odr is the 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 through a 4 ohm resisto5-qz2w0l*lfk. cxf)r0ljrab r that is dissipating 36 watts of powl.) rfl*lw0aqr -jbc k52z0fxer?

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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 amper,1o (e zvapnst g6n fxo39.s8bes of current when connected to 120 volts. If 3(xfbga,o 9zsn s8nev1 6t.o pthe 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 10qia;.4ttmc+y di*w) * zb3s vi0W lightbulb lit continuoz3 *sim)v;cyitd*+.bt 4ia wqusly 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 lightb*pfwd2 +n e*ciulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best repres2icn d*e +wp*fents 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 rated at 500 wg:perk4x -77s .o)pm8 e fiveda x5e1om18icvatts 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 the computers can be xio : 1v7c84g )o 1vef-xae8kdpemr7se.5pmioperating 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 batter jluf,-l9dp-+h rnzu/x i: 3opy is connected to four resistors to form a simple circuit as shown to to-u/ x, n3p+ihjd z p-flrl9:uhe 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/fl1i cl6r :va resistors to form a simple circuit as s1vilc r:6l af/hown 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 batte2cl er+47z5y lp 7ldciry, an ideal ammeter, a switch and three resistors are connected as shown. With dl c4 5+c7 re7plly2izthe 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 ideal ammeter, a switch and three resistors are conn r0uf888nw 7lc ebpo9vected as shown. With the switch openn87 vf80ec8owpb r 9lu 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 idea,rsbv ,ik:.5w+ v3c s o0wol3uml ws,bl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampeo5ws,cs l.:,ur+ksl3bv3v0b iww,m ores.
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 circui1ji8. 3h2pavc owu10j0 mlvk1 yz1c),sygwjwt shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery ha1)g8szvh pwc0u wm , yciyo3k21jjv. 1wj01las 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 the circuit shown2)zrazir( awcwy4* ;z*ur7h n to the right with resistance2w4uza *nwz h7;rcziarr* y()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 below shows five identical resistors connected in a combr4 kpvk 1z :gechqz3bq *50dc+v;.kvn ination serizev qp5c;v z4dhbqr0k:*k vgc 1 n+.3kes and parallel 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 rez3kae; n k(go2 /4w) vmr7rxpesistors connected in a combination series and parallel circuit to a voltage g24rvk;3 e)zxpna7 mo/( krewsource.
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 :b)xh0d ;.+usdvoudr are identical. Which bulb will be the brvod buu.+d0d:x r)h;s ightest?


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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, ur*mackv8(/i:jdm dt)h: gc 1a switch and three resistors are conneckd( )1t m*:8vmi/g:r jac duhcted 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 switch and t ix9/ (gbdv-ighree resistors are connected as shown. With the switch open as i-/x9i g(vgdb 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, a switchd zzm .d8jzzkp* )f4sb9;zg1z and three resistors are connected as shown. With the switch open as sz )fk1*mzsgdj4bzz 8 9;zz dp.hown 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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