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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 electric current exists in the m iofkknl8h.l15;g (wm4rhd:f f5nr +j etal resistor connected to the battery. Which one of the following choices best describes the diw in r;fh1.5j of+r4n(lkh l8: fdkg5mrection 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//xchi3hu 9te _________each resistor is the sameu/t 9/chhi3x e.

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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 filame2 jlct uqx 6b7rs5 c0:r65anslnt to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens br ss6 atu0xn62qjr5clc b 7:5lecause

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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 w +w5 hmubob q;z cv8v9zlv0e:;ith LEDs. LED is the acronym for which one of the fbcz9hze8vl;wmv0 v5: u;bq+o ollowing 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-se(mdxk c0/;kkv ctional area A. It is to be placekx 0ckmk /(d;vd 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 Ikcb)+ti, 6tkj/nfr -tI are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, IIkk/+c tri6t)-ft, jbn 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 twiceth k3fa abld+fp-if+ f,oh :*; the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance o ffat+id-fp :ab 3,hok*h ;fl+f

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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 pi .kgmip mfkp.*dy)a:;ece of material is then drawn so that it is a cylinder with new length 2L. What happens to the repmfkm.d; yigkp)a*. :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. He dzq,:k6 kspilvr s(jr1 0 c6h,hecides to modify the filament. How should the filament of a lightbulb be modified in order to make i,sp r:zvjcl,k(0 sh6 hkq r61the 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. The leje- 6wdz7e0yz or(om.ngth and radius of ea-doezr7j( 06ome.w z ych 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, are connected to a battery9hgu,m yzj .4,iqs *on in the following way: “Two resistors are connected in series. This combing4o m .z,,*us9y iqjhnation 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 dia ke) f2 5fwwv:g9r:f ncnct;ag6t2ec 5gram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. Thce:kgw wf2f65ca2 )te ft;c:9 vgnr 5ne 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 shown to the right. The three :n:yzl(9kx3k xrctk,mwbs ()bulbs 1, 2, and 3 - represented a l 3k9kbskc:r( mz:)x,( wnyxts 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 circuit at the right. If the current in all hbvpp),avx2x qggdkz:;;p r:o aq+.-tvq;g)zb apx-p+o2xr;.kvp:,g qhd : ahree resistors 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 s9 1zp 3q9-k z h7b .ii;jtrgrx.i4vxkjimple electric circuit composed of 5 identical p gqz..x-kji b1hz34;97t 9xijrv kir 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 t9 :v;us 8vavyxrue concerning the simple circuit shown whuva8;s9 vyv: xere resistors 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 byz,k mah ) ,lqg4ae u5np:r6;X andY are connected in series to a battery. Bulb X is brighter than, pz: quer)yla, ab4 5nhmg6k; 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 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 v6f a4f-g:lydnq voj) z;;.ho wq6dn9 pass through the identified resistor in z;v:;onfq6 djd-fh 4aw)y6.l o v 9nqg5 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 in the following simplp1rgv0,kopq 1 e circuit have the same resistance, which would dissipate the gr1 0, oqkvgrpp1eatest 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 curr xnbzftg u7970ent through the 6.0 Ω resistor is 1.0 A. What is thn7bz tg 0xu97fe 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 series ug m*5huo k4e,to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dum5eg, uoh4k*issipates 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 parallpi ;pwrwbmqfb 0 ij,9gl)-8z w94)an iel to a battery. Suppose R1 has 2V across it, R gwjbwar;- zi)9pmbip8i0wf, n 4 9lq)2 = 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 coi rz+ u ffmgy:uc3r.*9kl is rated 1200 watts and 120 volts. What is the maximum valyf 9zm r *ur:f.gck3u+ue of the 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 60 watt lightbulb designed to operate vfd2z hpdp.3/1n 0xtoat 120 1pz3n todf/dp0hv 2 x.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;athg/ m)6q4xvl pot6 through a 4 ohm resistor that is dissipating 36 watts of powt6xa)g/pmt olq 64h;ver?

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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 volm+keb4 e.r* but, 600 watt.” In normal use, the currumb. +be*4erkent 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 couldfd6s :eps:lxt;mp*g8 NOT be produced by a circuit containing only three identical 6Ω spt*xp:l;:segm6 d f8 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 follo 2wnr.lmj -c,ewing equivalent resistances CANNOT be prod-wm c,erlnj2. uced 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 confvtg1t4lk 83g ids 4c;nected together in different configurations. If all three resi4l vst;cf8id t31gk4gstors 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 rry- w,v (9bucqpto7(mesistor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical rep,u7ycor (mb9-qtwv (sistors 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 R2, z0a;+o7api0fv01 yij7 ek .i/ pwd0sl/ttjjp are connected in parallel, the equivalent resistanc;izp/i+ak.lp0 fse 10od70jtijjw7va p 0/yt e 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 resistancec-s +2bv. t /dcen5vtsqtrn4yv r9n;9 of 12Ω when operating at 120 volb+ e95vsnntv- t r/;t.2rqd9 4 vyscncts. 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 dissipating 367*zlb r fjzt9dxl, cqn/9-xx. watts of powert/j x 79*zzcx. -9nfrqbdll ,x?

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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 currench,l+gfk - qser39n. xt when connected to 120 volts. If the prxehgq-cf+n9 k ,s3.rlice 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 xx; m- tyg pe0fmw(+j(a 100W lightbulb lit continuously for 1 year at (+pfw(0mytxjm-xe; g 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 ) nv/3c;3n ,lkpqkc1 zy pv9ueof 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which oukn/vp3zp 1 y,lv q ;9)c3nekcne 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 family of six owns a computer 9 e01l(gcgd( fe)ncvh5tyx: h rated at 500 watts in a 120 V circuit. If ag5ef(x: nh0t9ec lgd ch(1y)v ll 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 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 connected0fvs.tk k .6cl+ s0yeypgzts95;u p*h to four resistors to form a simple circuit as shown to the right. t6.9ssflcz ;0*. tyh p0 5g+yuepskkv
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 fo5fpe1 wq go/f4ur resistors to form a simple circuit as sh ew/qpo gf541fown 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 suciuha 4nf 3 0:1v(bn.:h ysldwitch and three resistors are connected as shown. Whdh 4csab0:ufl 1 3 iynu(.nv:ith 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an d6mk8-sp6mx8pw o x4cideal ammeter, a switch and three resistors are connected as shown. With the switch open as shoks m 4-ox8xcp66dwp8mwn 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 resi -uu 7gb(dr)wd k5+twestors are connected as shown. With the sd-u(dutw)web k5r7 +gwitch 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 the equivalenxjb i7yf26g 4lvmmg5/n-q 8y dt resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistor7ng/l 8qmdi52xyfg6y-b mjv 4s 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 riglu7z 4o, mmr-tht with resistanc7to ,mm-zrlu4es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identiir/m*s1 s fo:g5lc qw*kryjxszot -c01 - 2jv.cal resistors connected in a combination series and rsig1fr0c-ovm ss :j./ oqw1-k*tzc*xl5 2jy 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 8odyfqe/;g/ 0w na(b wfive identical resistors connected in a combination series w;n f(baydw/ oq08/ge and parallel 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 circh*n seql:xsg)fk f8 5l67 :xzvuit diagram, all of the bulbs are identical. Which bulb will be lh f8)gv sfek:lz5*xn:7x6 sq 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 wbum.3:jehj 0 ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagramj.juh0:be wm 3 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 resisur /-1x2kcyc xtors are connected as shown. With the switch open as s1xkyx rc/cu 2-hown 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 ammeo,hsv9ft,)x) lb fz7j . lu.zcter, a switch and three resistors are connected as shown. With the v .)lf,9ftcul, h)xzbjso.z7 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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