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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 elecmzmyi8 *4j5 lctric current exists in the metal resistor conne czl845*j mymicted 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 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 anf9)a - dg44;yllaqhbre connected in parallel, the_________each resistor is the sq)4lbgd; ayah94f-l n ame.

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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 htoe3.a6v:htc+1 u)zp d w,ya a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much c.azt:h1,36d tcwva )pe oh+yuooler. 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 liia:me o wbg /-2abct87ghts are being replaced with LEDs. LED is the amgce7abw ba:2 i /to8-cronym for 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 resisbfr8b4 mh c*4ftor 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 thrc 4ff 4bhb8*me 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 ar a shv6,j+doe-e made of the same material. Wire II has twice the diameter and twice- v,hds6oaj +e the length of I. If 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/u,p+te:0rv8v kkdvh; qdeho+2 5cds of the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then w+otk 5;hv c2v8ep,kdrdhs/+:v qdue0 ire 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 piece ma6q/9 o x414rto.lx lkxbp6v of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because ofol6p 4t .vxl/mb x14 ka9x6roq 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 decb+p + lh6d4 jz26kxi:xfbah5wides to modify the filament. How should the filament of a lightbulb be modified in order to maf6kx ad+:bxhp h5w642 +ilbzjke 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 s8cp 4n q)dbo9game material. The length and radius of dcop94)n b g8qeach 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 r/iw z2,ewv s8vesistance 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 series to a fourth resistor.” What is the equivalv i w,ezsw82v/ent 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 circuiyh..dcjd2 o5 vt diagram has internal resistance 10.0 kW and the ammeter has internal resistanceh5v2y .d.jdo c 25.0 ohm. The ammeter 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 shown to the right. The three bulbs 1,t0l+s3dw0 xysfui(:cc 4fn6h 2, and 3 - represented as resistors :(3i s+ u0 fcnwst40lcd6fx yhin 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 circujzdm5 bsrvc9proyk9 *dr t:-pua+8:3 it at the right. If the current in all three resistors is equal, which of the following var -c*b8:j5o3p9 r:umtyk p r9zdds+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 av2ahf :ja3pnk b156 c9+iunnelectric circuit composed of 5 identic bp5:ai6fvch k2naa9nu n3 1+jal 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 statementqskx; la(leuh02 ; zf:s is NOT true concerning the simple circuit shown where resistors R1, R2 and(a k:l;l2se;uqzh f 0x 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 battery. Bulb X ie;a;kz3ktut070tb6c,cnsle m z 5i tz w 7we/+s brighter than bulb Y. Assume all circuit elmz;t0t7 izs cce t+bk0za5wlku/3e6 7ewt,;nements 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 identifi1: m aox/4(zoskmck5e ed resistor in 5 seconds once the circuit was clo:4o/kc1aomse(m x 5zksed?


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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 simple circuit have thz68:ss4,vf xr;t d qs-k0musfe same resistance, which would dissipate the-:8z,r;q 6f dv0sus4f msts xk 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 accompanying circuit diagram, thmvgd)y+s / fn+e current through the 6.0 Ω resistor is 1.0 A. What is the power supp+y/+) dfsmnvgly 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 to a+ yguc5po*lm4 battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance p4 gly+ou* mc5of 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 to a b*g hj,u79qg uw ,-yav;nas2aqattery. Suppose R1 has 2V across it, R2 = 4Ω,ayg,,-swq72an ugh*j; aquv 9 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 tk.slfu0uig ko0ky78(9hy,da he maximum value of the current under thes90ak, 07ku gu fyi hd(k.l8osye 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 wa 7-dsmsji mt4u g(l6 ,l5tg4gntt lightbulb designed to operate at 120 volts?st (g,ndglgimms76j 54u4tl-

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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 re) h(1vunm.s ekiuwxu2 :2v(b csistor that is dissipating 36 watus1c(uh (2v2 :.m xbw )ukenivts 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 clp 0ow5me2c1yb.g rk v*othes is marked "120 volt, 600 watt.” In normal use, 5m. p01w e2vgycokb *rthe 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 resistancesd;rui 1bd 70xs could NOT be produced by a circuit containing only three identical 6Ω re d b;7iurx0s1dsistors?

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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 of8b ello36t6wc+/mc th the following equivalent resistanc3h+tlcl6 /bcmetwo68 es CANNOT 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 different values can be connected together in d6wm9h5 a+srbhd-. 8o li5 ehkaifferent configurations. If all three resistors arh bw6oi.+eh r9ks- aad8 55mlhe 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, alds.1w4noz6h. j ssz3 total power P is dissipated in the circuit. How much total power is dissipated in a c zlz.sh6 1sd3sonj.w4 ircuit 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 res sf/r)nq-oit/usn -- w1/da yeistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Whif u se qr//n-1)- s-waniydt/och 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 resistancfm:5 hlb5ail) e of 12Ω when operating at 120 volts. What is the minimum am5f lh5:la)i bmount 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 thro gpgvpe* eblz23+,y -gugh a 4 ohm resistor that is dissipating 36 wattse -*2+vglbepgpg3z,y of 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 currenk *3b6rkbu))jg7zpz-ktpg m* t when connected to 120 volts. jmrt))kp zg3k z* *p7b6- bgukIf the price 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 woulj4vk.;ulgqt f7e e2i-5 mv6im d it cost to keep a 100W lightbulb lit continuously fori .4;7k -6lm2feej gvmu5tiv q 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 of 2w wfrs9y )y/monk mxb0b87e8zc w/9;v 4.0 W associated with the bulb. Which one of the following choices best represents the resistance of xoybn;07 wm/ brkmvwc/w9)f 9syz88ethe 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 aju+sg d-9k3ps t 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 computer+sd9ks-u3p j gs 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 form a fp;0hhec0q8r ,xs 1bqgr7m5l simple circuit as shown m,g rqhx7cfs0;r0l1qb5pe8h 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 batt pmrfed, +bru k ih)ph:;na* fqn)m/z43+bm s(ery is connected to four resistors to form a simple circuit asif+(+hkb/;*meq pza4rm): d bf,pu3snhnrm) shown 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 ammet :qx lq6gnl98ver, a switch and three resistors are connected as shown 8lqlnqg6:v9x. 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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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, a switch* 5j)i+lfrrijn/ 4j ko and three resistors are connected as shown. With the switch open as shown in the diagram the ammet l rk+/fnj*r) ijij5o4er 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 twkegeq8y.-+c iy -l3g , :uezahree resistors are conne +. ei8ac zwq:ly-3yge-kug,ected 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 circu0rzmb5o96hu id7 z5oq 7h yz0qit shown to the right, what is the equivalent resistance? Assume h5qz60r7byqo0zdiu 5 h o9z7mthat 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 resistance of the circuit shown to the right witc2 -3ikov b+uojq:o3t*6sx vrh res*-vbuo vjxr:63oqs k2oi+ t c3istances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected ino2dw)jsr bg6 -km)-+ls bh0ehnkl;7b a combination series and paroj 26dbk7)kbss+);lm-br w h-leg h0nallel 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 rvyqm *bha0hp8 ,6qxe 4esistors connected in a combination series and pab64ep*0h8m hqax,vyqrallel 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 the bulbs are ivojf 1y,xr4)x dentical. Which bulb will be the brighjy1,v foxr4) xtest?


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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 resistors jdp5 87 aug+npare connected as shown. With the switch open as shown in the diagram the ammeter reads 2anp5dupg 7+8j.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, yil pro(f9xuq2tf u*0+1rpp2a switch and three resistors are connected as shown. With the sifxyl tp p+ 9 (ru2qp0rf*21ouwitch 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 anxma3 k;3sdh axt5b2bu:1 o(7v-hyvv dd three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ado71 b 35 ;:tamvh(kua-dvs y hxbv2x3mperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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