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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 ir brpe,pt20b)klv*x:9e6g fs8w 7 czm n the metal resistor connected to the battery. Which one of the following choices best describes the e, 0 klbvpb*7 82xm9cp:f6wrrgse)t zdirection 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 pbu-+ek0 qq+l aarallel, the_________each resistor is the slqae+ q-u +b0kame.

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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 light cdy,+ q1;3 fpryp)ktebulb causes the filament to become white hot, while the larger wires connected to the lightbulb remaer)f q,y dkp; 3ptc+y1in 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 househc z hl4u3uaiacjg *(.7-rw wv6old lights are being replaced with LEDs. LED is the acronym for which one of the fa-jguhlw cvu.6 azr37 *(c 4wiollowing 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 lul5fa :yxm2;tp5 /xxhength 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 ol;hpt 5la mfxy/xu52: xd 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. Wirgvlu ew/,af.e,7 l sds3u(edb23qp/ztw-2 pie II has twice the diameter and twicegls-pd /t w7 , .b2uzfuaee3v(3lpwi,2d/ s qe 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 ux:8ghb1s 9 okhas twice the diameter and half the length of wire X.1o x8h:gb ksu9 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 pibrt+ygw;,3 gs+27di wuqf bz9ece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of thiswy+ ,;3 s2 qrizb 9gdbt7+fugw 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 bulb.rp-; tzqa,-cwo) (m.9mxgb sp He decides to modify the filament. How should the filament of a lightbulb be modixbpc s;mt .p(9,gowz-qr)a -mfied 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 materi)jy:b* cuqh+gal. The length and radiuscb :y*u)jgq+h 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 resisrf3izl1d4.vlf+ nx g6.ova*ttance R, are connected to a battery in the following way: “Two resisto 3dn* .olf fg1 vv.+lra46xtzirs 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 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 resis/q(+1p7s)bbdxni igac 6crwp) pxn+*tance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearly:a +c(rx1gpib n 7pxb/+nq*)) is w6pdc


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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 compw97v,sywmys o+ 6k1smound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagramyw mv9 1ys6mskso7+w,
- 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 current iuap4+4kw;se r n all three resistors is e+ka wue;4spr 4qual, 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 repre/km.n. e;5pynhl, kqlsents a simple electric circuit composed of 5 idenk 5.elk. lq py/nm,;hntical 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 followinn+ u 3csry1i+gg statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistancesy n+r 3uig1sc+?


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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 c tl75u o9 49-iy.a v0zawqtgnto 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 choices best represents tyz 9 0-a.owacnl i7qv95ut4gwhat 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 resistor uwpw0):c(fy;l1 wq hn in 5 seconds once the circuit w)p0l: qu; ww hwn1(fcyas 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 simple circuit i 5mh ahn uyghch;)e;as-a6b2g93u-y have the s-auheau g;5hy9b2n- h)6 sc a3i;myhgame resistance, 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 accompanying circuit diagram, the qrx oe*z(,q* t rxb(y(current through the 6.0 Ω resistor is 1.0 A. What is the power supply v qxtz*(box q(r,re*( yoltage 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 u vcgq+2r(6f7c2lx wh, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.wqf26 vxcrhg( +7u2cl 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 Rqqz,(sk-cyn k 6bx 2g81, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 ,qb( k2kg6n qzx8cy-sdissipates 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. Whatt4-p9v b: -v0kbgnnzi is the maximum value of the current under these conditions?k90pv4-b :zvbg-n n it

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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 operate at n4w6pv,o c,qnoja9* p120 v jpp4n,,wq o*noav6 c9olts?

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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 througwcg :x42n vef.f)4d: o,taka zh a 4 ohm resistor that is dissipating 36 watt egdfx:f nz4a awc2v 4o,.tk):s 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 wat w+e6jhy5 iz zpv41)vst.” In normal use, the cuv izwh4z65v epyj1 s+)rrent 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 could NOT be producu1n 3pgg+ a uyu80s.uhed by a circuit containing only thre.uhg p+us8u3uy1n 0 gae 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 folloza;3vzw(1(g,klz nt gwing equivalent resistances CANNOT be pro;z1k3, (nat lzz( vwggduced 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 differqy*0r1npf h .fent values can be connected together in different configurations. If all three resistors are used in ayf 1f0nr.q* ph 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 batterymn-f q*5rtsx n ujs.c)( t za5g+5wvm bssu:+., a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are c.utut5f cnsn. )mw 5bxza-:(smgs5 j*sr++qv onnected 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, are connected in ,rbj8)hdimtcco;y * v,ui .p:parallel, the equivalent resistance of the combination is 5Ω . Which of the following statementsi, c v;ju,8c*:th)boyrm.d i p 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 *qk 0.nnm,fsxy 6rg( a+2yeplthat it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of tim fyrykn*aeq(.2m,6ngxp+ 0ls e 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 redhgs 9(2//) woayvwhtsistor that is dissipating 36 watts of p2 v(o/)/a9ghswwyd t hower?

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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 hea ee5slb;wzbay*5rh9p3 gb*0c ter draws 13 amperes of current when connected to 120 volts. If the price of elee wza5g*0p 9;h rcybsb*3 elb5ctricity 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 lsgh+0je)e4;ekwe 9oqks k wr.laj;- 9ightbulb lit continuously for 1 year at a rwe;j . l -k+0ak e9o4w9sskg qj;r)heeate 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 pyr9kbq5whi 53cc9pr 5 ower of 24.0 W associated with the bulb. Which one of the following choi5qcih55rrw b 9p y9k3cces 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 computer y nny2)bc:,:o0dve wg 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 enogv :2wy )0c:,y bndthe 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 resistorw;8xprhvv;e 3 m/ l9ays to form a simple circuit as shown to the righe ;rv/apy83hx9 wv lm;t.
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 battercc 97huhil/ 3h igp2djo57-gyy is connected to four resistors to form a simple circuit as s9lcgpy 3 5h2h7i- jdhouic7/ 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 cy9 fvrx,ro- 4and three resistors are connected as shown. With the switch open as shown inrc x9vr 4,oy-f 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 ammugk)jhq18t9** kc its a qz*x,eter, a switch and three resistors are connected as shown. Wiqkt*1i)*u, *x szjhg8q k9actth 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 three resistors are conn ne14vk-ck4qn ected as shown. With the switch open as shown in the diakven1 k4- qcn4gram 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 is the equivalent res)/c9sdm) u46rjozd-g. nytv aistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistoc/uo6y )z4 -gnad) vt9 sm.rjdrs 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 r; gay;k4 35)rirmqqe zesistance of the circuit shown to the right with resistany;)mg;ei5zq q arrk43ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 sho3tb, ;sq6z ti6 ncqkgy4a/k4h ws five identical resistors connected in a combination series and pks3; bh a4gqqzci4 n/t6,ykt6arallel 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 identicaqwc q;,+h,qe1utv1)a c bz8:jqcyhiwxs i)8 -l resistors connected in a combination series and parallel circuit to a voltage sou q;q8,c cuh-eictz1vqajq:x) w +w81ih ) s,ybrce.
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 bu2rf0y.co07 .dm p oecslbs are identical. Which bulb will 0.opsr meod0c72 y. cfbe 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 am uny/;lyy 8kxty)3l ,imeter, a switch and three resistors are connected as shown. With the switch open as shown in the lx,3yyku8)inyy/ ;tldiagram 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 three rn v-ik+8jn7yuj imr ,1esistors are connec rv i+u,nki-7yjnj8m1 ted as 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 ider1u4b wqa ofz/cqb4 6)*bvza8 al ammeter, a switch and three resistors are conncbb4vb1zr6/ao)qa q *8 4wu zfected as shown. With the switch 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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