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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 resi eq ybz1p7.7th4tf(npstor 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 interio(7pt p.1f4yh7 qnb eztr 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 resistorsqs;:c1mjrn- b are connected in parallel, the_________each resistc-;:r1 n sjbmqor 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 lightbulb causes the filam3t vxjl1t+,;mia4ah k ent to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens belkxt;v43 +it1a,hj amcause

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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.+m gr3*)a:a-op9hh bplyo gu 9 LED is the acronym for which one of the following ao*:ol b h3a)+ghguyp 9pr9 m-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 resi( bd kp6079bvl:rm-dwv 9q- kx h4bmpkstor has length 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 old resistiv0xqmbvbd mkdw7 ( r- klp- k9:vp69bh4ity 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 mater k0;7n(hn i4wljumra+ial. Wire II has twice the diameter and twice the length of I. If I has resistance R, I +inhl;um4jr7wk 0 an(I 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 bz1fp/ jb(f;z4d u1hmput has twice the diameter and half the length/d(z14phfb;jp f uz1m of wire X. 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 rq5ua)0mn;ullau/ + 4.fzjg 6xnam4e y . This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the re +jg a6y/men40u xl4.aamulzunqf)5;sistance 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 bulb. k 0ikrq:po7n6/ u i8o)8yguqiHe decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produc qro )okqg8u8 p0:i kn/yi76uie 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 resis(jqv 3gu+v-r2 v( )bom 9cdnejb2)idvtors are made of the same material. The length and radius of each ridb2uqvv+ - nm3vcj(rdv29 g) boe)j( esistor 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 rv(/i/xmx0km0/tf6vxpjl3+ e gy6hg oesistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resisth yx po+mt/0 i66mv/g(j0xg/xfl3ekvors 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 th y3d6bw6v6*ck:lk qc f4jl/g ce accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The amme/ 3g6*6ccvwb6q ljf:l kd4 kcyter 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 9:l (jd,y4vopo .l ba ,sscu9fshown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagra lslc(a ,p:9oudv4 jy.f9bso, m
- 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 g jxdqxf/bdu+hq ,:;ab ;j/h7circuit at the right. If the current in all three resistors is equal,d h+7jxjf,bgh bdx; a //u:;qq 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 represen +rg36 -r vrdles/k*ists a simple electric circuit composed of 5 identical v* l d/r3ksr6-g isr+elight 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 qd: h+0pl9l9j-jyib ffollowing statements is NOT true concerning the simple circuit shown where resistorsy :jl9+b9jfhl-q 0dpi 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 are connected in series to a batteret a-ca8e;vagj .y;g2y. Bulb X is brighter than bulb Y. Assume all circuigg82a c etaavej ;;-.yt 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 resistor 6ff*u s*solcn (;r xm*in 5 seconds once the circuit was closed? x*fco*fu n*6s;mr(ls


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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 resis.5ceo0 ( yzjp .)g mvo75gezk(c-oc hgtors in the following simple circuit have the same resistance, which would dissipate the greatest powgejg7mc.zgkz50.pyoc (5 (hoev )c-oer?


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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 g7mja2ml *q lz mn05 e8 .2ndnsy:+mbzthrough the 6.0 Ω resistor is 1.0 A. What is the power g+nj25 l*z2.0se7l:amm nzm mq 8dbny 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 r:0 -k: n9-scvwlc nhqR3 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 power. What is the voltage across R3?qnw-c9r cn :lvs0- k:h

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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 connect1 zez)a/ fcr9 8s;/uzvcixzk:) kcb9yed in parallel to a batteryac9:z1 ; f8/)z xccu/)zerib s9vkkz y. Suppose 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. What is the maximumw8yj,)uajb kl;i * u(o value of the current under these ca,); ol(kju* wjbiy u8onditions?

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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 120jwvh.r(py5fq.3 z s9 i volw v.jir.q59p shfz 3y(ts?

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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 resistor that i b5p:(hdl9 epfs dissipating 36 watplfh 5eb9p: d(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 clothet*q f)v;e qzp hzb1vqv:bg5. :ll- wn)s is marked "120 volt, 600 watt.” In normal use, the cq* w1 bzg l5f-qzv:)hpq.)bel;t:n vv urrent 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 resista;kv n3fc*bma8d b5tlmj2+y 2 unces could NOT be produced by a circuit containing only three iden 3 b2dnuf2jmyk vtmla+8;c b5*tical 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./rpjazk6q l2 +tll3hc3 lc5*h 0 Ω resistors. Which of the following equivalent resistances CANNOT be producezcql2c3h+rj6ah p 5 l*klt/3l d 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 connected eg 0bavm8l 8q36w4d ayhb3 si1together in different configurations. If all three resistors are used d4q b8lmw 8i01ab33v e6 hyagsin 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 -hp36yhe (n (ja9;gucr)e eqv to a battery, a total power P is dissipated in the circuit ehj-9vep(c;n rhe6(yg a)u3q. 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 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 Rq .8w, j 5f pv,np2gnzgh,od1m2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is corrfp,nwvgdn,8oj h1p g.m q25z,ect?

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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 isd;bm: yc ;yt5d designed such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it w c5y ydmb;d;t:ould 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 resistor that is disv 2k,uyfs: 1r9w1qankmu bb :0sipating 36 watts of po1ka1 mnukbvw:y sfr92b0, :uqwer?

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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 pn 7(d efku4y*connected to 120 volts. If the pricu( nf pek7y4d*e 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 kn71j2ack8f bj vbr0v9eep a 100W lightbulb lit continuously for 8v10bk97a jj2nvcrfb 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 pq-sier q qf3gv180u5of 24.0 W associated with the bulb. Which one of the folsqq q3gr-e0ipuv 158 flowing 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 s 64z8sb9bcb +odgpre( 6 jgag,ix owns a computer 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 the computers can be a9 jorc+g g846epbb(,bz sgd6 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 b4cktd 2w.vf +resistors to form a simple circuit as shc.2 k ftb+dvw4own 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 forpu5y ob7mafr2k7yabt67 km 7)m a simple circuit as shown to thep 7mat7b7fb) a k5 mok6r2yuy7 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 and three resistors /u;yjz 88k mvhare connected as shown. With the switch open as shown in the diagram the ammeter reads 2.zjm /y;uh8vk8 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, and*q i np5fib/ 5-yujz5 ideal ammeter, a switch and three resistors are connected as shown. With the switch open as s jp/bzyd i5 -q*5iunf5hown 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 dlztp kma g1);nel)q6. e)9x8yesag .ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amkxnm 9 azeds1))qe)6ag.8ge.l; tlpy meter 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 resist uph,9 0 4gd;ijyadls;ance? Assuadi;y9 u jpdg;4,0lshme that 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 2g,oc4x a3:viajk 2 lbresistance of the circuit shown to the right with resistancesbxa i:4cjo,l v2a2k3g $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 id1,0fknw lo iqi+cl83 aentical resistors connected in a combination series and parallel circuit to a v iln,wi oc8l1k+q0a f3oltage 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 -t/ c:m+huhe (axp-o4 t2jh 0 z,inmgwidentical resistors connected in a combination series and parallel p0n2awhmx:ceh/ -jg-zm 4ht ot(i u+,circuit to a 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 ;op 3k c1i-, x2yafgptthe bulbs are identical. Which bulb will be the brigtp i1;fxg2,yck3opa-htest?


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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 resisto/ nqqv, llvep54-ulp1rs are connected asv5qll/ -n el,q4uvp1p 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 switcou/,fle q1)s; cgl5zf;z :fbyh and three resistors are connected as shown. With the switch open as shown in the diag eg:1l)5;su;bo ,fcfyzfqz l /ram 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, angy * k3nrm,;ek ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 akmn*rkg ,; ey3mperes.
When the switch is closed, what would be the current in the circuit?


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