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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 electrtq l1;lz( m t*w1fi3 i0wwzpu(ic current exists in the metal resistor connected to the battery. Which one of thtzw1f (p tm( w;0uqliiw1 *zl3e following 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 connected in parallel, the__ehfjw-7 q xg-9_______each resistor is the same.9 ehgqfx-- j7w

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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 t6h jkv(ap0* 3oa.jv2xt s) mpyd(ii8she thin filament wire of a lightbulb causes the filament xyk( 0vs vp26p*.a tm 8(hjsai)3jdioto 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.np fi+ v-axa car8.2)3gqt1nkhp.2zu LED is the acronym for which one of the following choice-k..x u 1 3p )p2vqnat ngar2hf8zc+ais?

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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 len +4bjwkgocor;cj:-3c ;hsios.kqk70gth L and cross-sectional area A. Iko4ios cbhk. j+0;jqcco73 :skg-w r;t 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 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 mve0jg q (u2.f5x0 aspl8b: btuop*r(r ade of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, IIajx(0 r.buvb:f2* prelp o (05u s8tgq 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 drch.2 w:c -nqsm,eb5h iameter and half the length of wire X. If wire X has a resistance of R then e:cw.s mhn, brqh5c2- 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 piece4j5 udfa 7-z z/jfynjm(q9pu; of material is then drawn so that it q/f;9u7 a j(nzfdu4zj- myp5j 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 wantsqw9l y :l0s)hpx wc)*ac*utw1 to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to maket9qwc)ah*) u0:1pc lsw *xwly 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 mate(amhgd- dp ynmr 8985xrial. The length and radius of each resistor is: 5nryapm d9md hg8x(-8
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 coqorn1+u(iog0s 9ts-on80t(96 lqvw co9f vm innected 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 series to a fourth resis61snt0u(-99qovr0 solw o+q 9mnit fivgo( 8c tor.” 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 ucjtvrq7-v+svi9e. ; 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 mosttvvvq-; i s+jer 7u.9c 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 shownp/ 5zt;hriku )k dm:)a to the right. The three bulbs 1, 2, and 3 - represented as resistu) t)rdik; :mhk5/pz aors 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 rightxve5w-x4 kkj: . If the current in all three resistors is equal, -x:wvkk 5je4x 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 righrtj. m:n*7wmm)q byer1: eih9 t represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which*1ijr.w them7nmbe 9:yq :r m) 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 statenn giwfqb 6 fu x5()mzn;-l0-tments is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal n 0 -xm6;i b5w)n(tulfgnqz-fresistances?


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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.29: Two lightbulb : qveyf -g(p.ja,gc:os X andY 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 connected in parallel with each other to the same battery, which one of the following choices best represents c :.ov:,g(fpy jge aq-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 pr5w6ku,uj- si/+ub8dgcre2fass through the identified resistor in 5 seconds once the+ucr- u5wkjir8f u6 ,gsd/eb 2 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 following sim 5e s;4i*o30sonrd+ z:xc xtktple circuit have the same resistance, which would dissipate the greate30; d ex+*s:rix5 4tt kczsonost 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 .k5 j 5+it4hz0tdpncq l256r eqp rmv3current through the 6.0 Ω resistor is 1.0 A. What is the powecelq drpmv54 .+ 3pj 5qt2t5zni 0k6hrr 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 9vapiwd: 89l dconnected in series to a battery. Suppose R1 carries a current o: l9 ad8vdip9wf 2.0 A, R2 has a resistance of 3.0Ω, 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 R1, R2 andR3 are connected in parallel toi)9skqve py-8 dn*ho : a battery. Supse -)9hk:doqy8 pi*n vpose R1 has 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. Whaw ,6dfv4mp82 t7jtnvhe 68febt is the maximum value of the current under8jebvn evd2ft8 wh f7m,6pt6 4 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 tt s,x4eae9o2cq )m wq -wnmp2;o operate at 120 pams qxn- q2o4;t2ce9ww)m e,volts?

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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 nt* zdncp((pqvgt,a ( ).js- dresistor that is dissipating 36 watts ogqac*p.(dvz(d-, tsn (t jn p)f 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 pre:mlqj 2azx hg7i( -gj2ss clothes is marked "120 volt, 600 watt.” In normal use, the currentxhgj: jm-(2ag i2 l7zq 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 produced by a circuit c7n*rsl*h(3xy:7jv-xb rgn rna)7cm bontaining only three identical )mc *b7 l nr nasx(xjvh:rb7r-ng*73y6Ω 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 equivalent me3x7ojr d +xwif--v;resistances CANNOT be produced xfwj+37 i;-xdo -mv erusing 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 connected togethe1 d/gw jgb)hdmyv r p7wl7k-suz5 ***yr in different configurations. If all three resistors are used in a circuit,57wgkl hrd1 m)vsu py-zy*/7 d*g *bjw 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 total pfdh38)b,3 +s mvqjshgower 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 battery? Assume the internal resistance of the battery is hj3+b 3m,hdv g f)sqs8zero.

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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 Rx(*3hyu yg7t0: khstc 1 and R2, are connected in parallel, the equival7 tt hxh:ky*yucg0 (s3ent 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 12Ω lmzq:/du(re42egb 94h+.umomm2 dk vwhen operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of wat/ 2(.2hv rm:eeu kgzd4o d9+mb umml4qer 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 throug-ol(2bbjk 9m jh a 4 ohm resistor that is dissipating 36 watts of j2obm9 jkl-b( 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 connected to 1208sxumez69 eqdk jlug*43*m v. volts. If the price o mvkedjz6qxu*sgl 3e4u .m*8 9f 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 cosp+-03t r)el mxcjun) 3qubzu ic.i9e-t to keep a 100W lightbulb lit continuousxibic3)u njc z09-3 ueulq.+ tpr)m-ely 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 power ouk1vjb; ,9yrz f 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbulb?jy ;,kuvb9r1z

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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 familyb na a5wjpd)4 ac6,-xm of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circui jwx )p-5a4nca,a mb6dt 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 conn inuli3)og w ului5-/2ected to four resistors to form a simple circuit as shown to i2/l ln -go5w)uiu i3uthe 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 sim8*8ju ;um* hxw g1yetk6gde-yple circuit as shown to y8 -ke dt;xu1*6ggwhuem *yj8 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 ammd ixgqjl8 0i0unz)+,aeter, a switch and three resistors are connected as shown. With the0,ij0dal8u +niz )x qg 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, aahud nh7gp;6/bwx6zn x/+4-u np -bnd switch and three resistors are connected as shown. With the switch open 7dpnw g;hzu 6 u-x6xnbbdahn-p+/n/ 4as 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, o3; ;0toy ftiyyt z30fa switch and three resistors are connecte;otty3 0ot0y3ifz yf ;d 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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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 rd b p w(83srv2o3+hcythe equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have idshbyor cpd8 3v+w(2 3rentical 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 the right )cqum 3j r e/c c)exibk7345viwith resistances)mricb/ i4 e5)kjcqceuv 3 3x7 $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectel2qy*ggo--u- 4s *0wn ugg ahe7g qlt1d in a combination series and parallel circuit to 1u-e7 2g qs wqou g**nlg yg4gh-0ta-la 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 1p)wu6te-ymx;2a og.c1yiqc resistors connected in a combination series and parallel circuit to a voltage source. -qi6.pc12c;oetm aygy )x1wu
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,+gju)t4uy ci ; all of the bulbs are identical. Which bulb will be ) yucj;4iugt+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 and three rebq;knd 6kj,;zydeio h +7 +( bay1kl*hsistors are connected as shown. With the switch open as shown in the diageb d(jibz y l+1d a7kk*o;,hhkq6 n+y;ram 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 switchpobq jc4lj;8;x/7znc and three resistors are connected as shown. With ;pb4cc o7;xl jnqzj8 /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, a switch and three resi e:wq81+mufktr3u;az stors are connected as shown. With the switcua :fk1u8 er tmz;qw+3h 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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