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习题练习:.Resistor.

 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 ek+f)m6n w;5i:g2rgk3s5mqyql : sxfjlectric current exists in the metal resistor 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 interior of the resi)k nmj:6f5ygg;5 siskqlx wm2fr:+ q 3stor?


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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 connb14 qgz:(q .hhqd :w4k+muvxnected in parallel, the_________each resistorzq nmv1d.hhx:u gw4+qk4 (:bq 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 fi*me/-i t 4amiclament to become white hot, while t/ic*a imt em-4he 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 repluzd-jtia c26fuiqq4y* 6 kl8jd a+r-2aced with LEDs. LED is the acronym f c 2ujui2+jzari-ltkqd8a-6*q6dy f4 or 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 resist p9u)g; lbgo3sor 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 resistivity pog9ls)3ug;bof 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. Wito c.lv*j:zafx2qz+, re II has twice the diameter and twice the length of I. If jz zt,:f xo.2*+vlcqa 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 hasnz( 0bpi( oz fhemn+71wddt(d l61ke0 twice the diameter and half the length of wire X. If wire X h7n6kzznid ot1dl e (d(be(fp0 w+01mhas 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 ho*o s:q qg 08z)raip ,o(setu8as length L and radius r. This piece of material is then drawn so that 0sea ooz(tq)spru 8q*g,8 oi: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 make a brl+lu )k a09vzvighter light bulb. He decides to modify the filament. How should t9 vzk)la+vu0 lhe filament 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 resistors are made of the same material. T.h * xgwn11jeq t jqtr9o.te(8he length and radius qt1 x .rh1o8tjn .qegej9(tw* 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, et ) ks4f3 gjz+ejf7pc2s(k6iiach of resistance R, 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 serietgei( 6 pk3cz)+f fsjj 2s47iks 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 asn.7te(4/nm3r v o: (gjq ihpuccompanying 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 voltmeter ijrhv:3q.t (7p4eom/s( nng ureading 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 ciq4,kqz01 3stkbjkzs: l mut+/2 c*z eox:j af;rcuit shown to the right. The three bulbs 1, 2, and 3 - represented ass 0 ko:l mz1k *,sz+qe:zkjf;3cqa/ 4ujtt2b x 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 circu+ gl bk0 sbwj/i855eefit at the right. If the current in all three resistors is equal0w/j fk gs+i5b e5b8le, 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 athflcv4(w j 7u4 /s,rpp right represents a simple electric circuit composed of 5 identicalwrucfpv/s7j 4lh4(p , 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 is NOT tr jfu4rk4: f:rfue concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistan44f r:fju:k rfces?


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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 tbgk-xbr.+e , w5lfiv bysdp v7j2(6,connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are co kgd(sr lv+w5fv6. -,bxjb2 yt 7eb,ipnnected 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 resist,7s k ,046:rrk+g7 yyslnya d3 ayjdusor in 5 secsra a ,sdy7kksy4r:lgnj 6dy 0u,+y73onds 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 : lfpuxv6:o)p resistors in the following simple circuit have the same resistance, which would dissio6uvpxlp:) : fpate 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 accomp2c2iq 9qct b+janying circuit diagram, the current through the 6.0 Ω resistor is 1.02 jc+i9c 2tbqq 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,5 kr*ad5v ftq in series to a battery. Suppose R1 carries a current of 2.0 A, 5q,a 5k vd*frtR2 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 conneco w w,n h/0jf8dk4/epqted in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R3?ojh/0k,8 fp4we qd wn/

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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 tg kujf6 e7vrh- mig5op 3c0;h4he maximum value of tg; g -fkui3v760pe5m h4johcrhe current under 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 amq b i6p6;a2rffyx:660 watt lightbulb designed to operate at 120 voltsf af2x6i:mqybr p6;a6?

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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 is ff d )u2u3m3xbugrtzy469g(h dissipating 36 watts of62 du uf9()3gftgx3umz h4bry 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 m 9,k eq y :*+atjx/hre1qxe9cbarked "120 volt, 600 watt.” In normal usejh+9xyqb1xe:ee/ aq,tc *kr 9, the 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 following resistance70hl/ylyen4y h h 4gvjjv*--j ok, vk.s could NOT be produced by a circuit containing only three identic 4jov.4vhe/ 7j* l ,yynl h0j-kkyv-hgal 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 79ss;+q1i jgnz )uzl p resistors. Which of the following equivalent resistances CANz 1q 97uz+sjg )n;spilNOT be produced 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 di.ylosr)mi c59 fferent values can be connected together in different configurations. If all three 5.)im sol9ycr 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 a battery, a tot crgo9/ y:vkl6./mfbb.n fma5al power P is dissipated in the circuit. How much total power is dissil6mk /:v fc.bgb9o 5r.myf na/pated 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 resisto0ta1a(qray3+ 8i,b kh8a p kgvrs, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the0hrbiav pa88qt(kya3g, k1+a 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 (czuh6f/37au wh u tl :6c+eudthat it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm /ad c6ut(luuef3 6cuw+zh :h7 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 resistvw2i/-hpj3wf f b wb(0or that is dissipating 36 watts of pob2w0ifwv/w -f (jhb3 pwer?

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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 t ygsq3 /x2phm;o 120 volts. If the prxs;3y2mhqp / gice 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 100W lightbulb l buv* tp+-:cyait continuously for 1 year -+pua yv: tcb*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 4.00zc4sl(mri g /k 9a 80za:fgm6w A through a lightbulb results in a power of 24.0 W assocsi0m9mk fw48 rlc/z aa (gg6z:iated with the bulb. Which one of the following 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 f:df/ k8z :f/f vpom43zqfk rq9amily of six 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 operating at the sametimdpq 8 fv3o/mq4::fkkfzz9/ fre?

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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 l9i0m ic) 8 )l:zelzecform a simple circuit as shown to the righ0l)zc:ileim l8 )9czet.
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 battery0 ix/-;cx dwrx is connected to four resistors to form a simple circuit as shown to th-dw; 0ix xrc/xe 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 ammetp asykilz /+9)er, a switch and three resistors are connected as shown. With the switch open as shown in thk/ya zspi)+ l9e 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 amm 26h2svn 3f.juv x1u4xg gosd*eter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperevh4ox g2x 1js2n6 .duvgf3su*s.
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 cok qzpgt+ io6*htvq((pwbs3 t41i5t7o nnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampep so6*4t 3z(+gip1t5qvqki o(b wt7thres.
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 eq,jutox+0 v ze;ghsfoe1+/s4 euivalent resistance? Assume that all wires are ideal, thjve +og1e ,sstoz;4uexf+/0he 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 resistance of the circuit shown to za2+z-yjjyb * the right with resistancesj-+ ay z*j2yzb $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 : zh z8apg x*t2prxq-6shows five identical resistors connected in a combination series and parallel:*zqatx 286zxr -g pph 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 f2 *f8ldkarm6 dive identical resistors connected in a combination series and parallel cir8 lf6 2dak*drmcuit 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 the bulbs gqa,-l r5ieoh 1dy4*v are identical. Which bulb wiy*vgqea5hd,1- 4o lrill be 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 switc0re+.;2nl1mh ik. ida s nf1okh and three resistors are connected as shown. With the sn nl0 rk+fki11s o.ah;m 2d.iewitch 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 swsepn2cjheu3ar; ) w9.itch and three resistors are connected as shown. With the switch open n ejs9re3;ahwp).u2 cas 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 resistors are conn50 k( hhbyee clk*4u(cprg r5+ected as showne(4*pyc 5h r gkh(c eb5r0uk+l. 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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