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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 el:;iig hw-3 *r (javqytm;be-yectric current exists in the metal resistor connected to the battery. Which one of the following choices best describe*vj-3 ;hb m-giyq:wa; (eyi rts 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 resistod0rvi4o kkt+f-mw;;s1 q**fdz hr4wtrs are connected in parallel, the_________each resistorfowf-14 m 0*ksrdzh*v ;i+tq;wtkd4r 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 lightbulqq6ao/f, r-tnb causes the filament to become white hot, while the larger wires connected t fq/aoqn-r,6 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 householdq59c qjupfg a4ru/(zb:30a zb lights are being replaced with LEDs. LED is the acronym fofguz3z 40qrabpqa(jub 5: /9cr which 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 length L and cross-sectionaasf:3 r;- y(glfjva6c l area A. It is to be placed into a circuit, bufr3l:s;yfg -( ca6j vat 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 arwj9jsvt).6 jm7d 2dfz w-aa m5e made of the same material. Wire II has twice the diameter and twice the length of I. If I has resista. -5tj)2a9v w s dfjjdz67mwmance 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 bz )),qw9clsz/h :qcmout has twice the diameter and half the length of wire X. If h,qcmzzqsl:o/) 9 w) cwire 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 h(x,,p h8r lyua:zu a9has length L and radius r. This piece of material (y,u pal:9 x,zrhu h8ais then drawn so that it 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 wants to mhby3oejp v w3zg1fex 1irf 0uq .g*;(((fhqu8 ake a brighter light bulb. He decides to modify the filament. How should the filament ffgvq(ih1oqer3w ;u( .y* f1egu zj0xb h3(8p of a lightbulb 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 rea9rfogl,omum 5jizr ;:)dk ) +sistors are made of the same material. The length and 9zo5ml ud,ok a:i) rrm+)fg ;jradius 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 resistance R,x ,u69* 9lpdfr1czleicu;zvyz :;h7b 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 ,7fhz 6czlz9 b*19ru; ex:c vu;yilpda 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 avkyqi4 jv0)m ,ccompanying 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 vol v)k4m jv,iyq0tmeter 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 bulbmb 9g fdt;6c t.5n6qgls 1, 2, and 3 - represented as resistors g.tlcm btfd6 ;65 gn9qin 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 electricalg;qdqape ) ix9gt9m74a )y n1l circuit at the right. If the current in all three resi7)lmtpd a; 9qney xigg1a)q49stors is equal, 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 represents a simple electr l)jb 3/lyvg: zuza 0l5d6.xhdic circuit composed of 5 identical light bulbs and 2 flaudb)0jg: lly 3. 5dvh/z6lz axshlight 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 statemenz) )d7) u;:zwzet+z: rghfu nots is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal h g):zzzw7n)+ fuute ):d rzo;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 an - sx-odkfok7*txvs5rk)yx:lti( y. 8dY 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 baoystlr)5xk(: xv7x 8k-.kis *fo-tdyttery, 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 in adml6tal4rk4e 3y)g01inh (c 5 lg4cm e4)ladhy6i1krnat30 ( seconds once 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 2tto2h mp9,p;olt:l oin the following simple circuit have the same resistance, which would dissipate the greatest po,hlmo;2: 9po2lt ott pwer?


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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 res 1p i.9v -vixmr2k*oriisto 2p i1vv-orm ixkr*.9ir is 1.0 A. What is the power 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 connected in serie.l4)6 xemvc3kg-oka1zw3 g zts to a battery. Suppos6.3l komvc3zw gg- 4 e)ktazx1e 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?

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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 connejc.w7 e:6min2t rkmo/nm4 qx )cted in parallel to a battery. Suppose o 42mc)nj wn /tkerx. qmi7:m6R1 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 th7 fkbuo1yj7a 0jd-m- ie maximum value of the current under these 7a0 k7fi-moduyb-1jjconditions?

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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 lightbulbtboc/ 6 z1jc;k designed to operate at 120 voltsz/6ocbtc1j k; ?

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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 thah q*wddyo /*gmr0)c8 oeg8p3 gt is dissipating 36 watts of powere 3)o/p*0o gwg8dhm d* rq8cyg?

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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 clde2kp*aq9;r b5cqf: sothes is marked "120 volt, 600 watt.” In normal use, the current in it is:racsk5p ; 9edbf2*qq

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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*:3lyr v fv0yo*q1soz could NOT be produced by a circuit containing only three identical 6Ω resistors?3lyv:rs*v1* oqoyz0 f

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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 followings6( gtzoyyiz*q0yuk)g .:(j u equivalent resistances CANNOT be produced using all thru:sgqyzoiut (*6gk.z 0j)yy (ee 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 difn0g1s ju;p 2crferent configurations. If all thrp u; s2c0rn1gjee resistors 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 ahoz/rs8f ,* yn battery, a total power 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 bafn yho,/srz8*ttery 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, ar8v i/ /ou/u8nky9q )(vwwtusc e connected in parallel, the equivalent resistance of8(v9kv utw)qu/c8u/s wiony/ 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 s)l;ex54foiuqpe 6-pb uch that it has a resistance of 12Ω when operating at 65bl;px-p e)oi q4ufe120 volts. What 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 resistor that is diss/ r80sl)9wta 04 n91ogq+flilpdz tr fipating 36 watts of pft pq 1ra lligt4f90 /wz98dorsl )0n+ower?

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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 12cs f2,o ; k3w3eu-fjqm0 volts. If the price ju,kc fes;32m-fo3 qw 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 m f-l)6y/ej1xg6ws y ;eb)bpwmuch would it cost to keep a 100W lightbulb lit continuously for 1 yea ;fge1j)s/p-m 6)beybwywxl6 r 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/;s vc7vy a3v/l4x dlu A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choy/xl;v4 /a c lvdv7u3sices 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 rated at 500 watts i-yp i 91q(xqecn a 120 V circuit. If all computers are plugged into a singleq-9 qc1e pi(yx 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 connected to four resistors to fd25l*(w ysvzt orm a simple circuit as shvt5*s(wzl d2yown 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 resiw1sqy5g+ ar6fv8 ucu6stors to form a simple circuit as shown to the right. +8rcs5qy g6uf1u6 awv
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, am51g 5cwqv6amn 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 ama55gm m6v1c qwperes.
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, avk n 5-2ip3*nh c(ccfybbl j80 switch and three resistors are connected as shown. With the n25n0 vl8(hbjkc yicfpbc-*3switch 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, ; ap,e1n0ayd76wo*ydptsz 4d a switch and three resistors are connecdns poad6w ; a0tyz*74e1,ypdted 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 rigqbk0/2cdbs8;e wny ))vdly8qht, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistan yldyvk28qwd); /esn 0q8cb)bce, 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 shown to the right wkc5 v)4d5dsx;eld b+q ith resistances5cx l;)ekddq5 +db4v 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 :/ r), z4q )kxwcxorabresistors connected in a combination series and )ao qrxzb)c: x4 w,rk/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 resistors czxl/:e)t n/ hoyzsws/ m9k :8eonnected in a combination series and par/w):szsyk ze/lnm:/9to 8 hxeallel 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, ax/ppfz:6tvt5 b8ov+c g)dr e ;ll of the bulbs are identical. Which bulb will be the x+/ repp:)6v tf 8vtb;gzoc5dbrightest?


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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 ideafzz-oxl7e;.1i gf4ar l ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amper1g f;.oe7zz laf- 4rixes.
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 switchytli3;wjd 0bzt;z a 64f*.mp h and three resistors are connected as shown. With the switch open as shown in the diagram the ammm4 6td*zi;wby30lh.zfapj t;eter 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 switcx5iz sn6)* )dtu btys2h and three resistors are connected as shown. With the switch o s5y6t*nx 2)ust dbiz)pen 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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