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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 shoh8r1d84nmvnrs h;jw7 wn, an electric current exists in the metal resistor connected tns8nrvhj8r1 4 h7;dmwo 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 resistojqul*. a t:vb.xq;nc 1rs are connected in parallel, the_________each resistor is the slxjqn:a;tv.u*q 1c b .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 wirecm*idy:4 xaynuiya 65q/-n b( of a lightbulb causes the filament to become white h 6 *ymuyxb/a(y5n : -ancq4iidot, while the 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 repla8 ,x92 aer;gow(zy vtkoazp79ced with LEDs. LED is the acronym forp x(atk72wog8 v9oza9 y;e zr, 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-sect 5gqlz2c-b qr;ional area A. It is to be placed into a circuit, but it firsgzrc5 l2;b-qq t 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 are made of the same m*+ j)uxzfrv mn0ub(e. aterial. Wire II has twice the diameter and twice the length of I. If I hasb )ur ue(zjv *n+mxf.0 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 bu0:e7 vm1jltmw if6cmf +:tf0gq h1w r:t has twice the diameter and half the length of wire X. If wire X has a resistance of R twv0t qghm1ej f :6l+cmm::tw17f0ifrhen 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 hacc7(ofnnx7js.j hsa 8v*b 59is length L and radius r. This piece of material is then drawn so that it is a cylinder with newx57h(v bjfa. os j ccn*7si8n9 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 Ed 1bcz bfr7+)qdison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make thebb+zc )r1q 7fd 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 ad1lno)s8hg vwkpn+ dh5a.:+bre made of the same material. The length and radps+ kddn.5) boh+lv1: ag hnw8ius 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, are connected to5si /4kgortx 1 a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected iit k1go/ 5xr4sn 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 diagram has i)7up2 +b:d4f o j*yfjrrc-g*hkyc mb.nternal resistance 10.0 kW and the amfjc.cbyy+ o p72rk):jdu* *rb fmg-h 4meter has internal resistance 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 wvh*:ni2-d(l i6lfhn compound circuit shown to the right. The three bulbs 1, 2, and2hni(iv - hwnlf*dl :6 3 - represented as 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 jiue *9qx8p rc:x );ymthree resistors is equal, whic ie8x);ymq pu:9x jrc*h 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 represxlrt+y6o*pl xb) .fcl w4p40oents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (obwp.0x l*6cxlyf)po tlo+4 4rr 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 true concepsj2pzni)bv87 o) of gi 3e56qhvd: b;rning the simple circuit shown where resistors R1, R2 and R3 are have equal 2eihp7 j6 iqpbf; z5o3vg)so: b dn8v)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 lightbulbut.r,j n3dx)cs X andY 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 battery, which one of the following choices best represents what t uc3xj. ,dnr)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 throuz 3 nrr1pb8 76c 9hwjl3 /+-fxuq1ecxa e;gsptgh the identified resistor in 5 secon 3x/wnsqc9e 8p jztc;gh+pe6 rarbx 17 1u-fl3ds 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 reseaf)t6t:*8tn) r f lsuistors in the following simple circuit have the same resistanceau6f):t te lfsr*n)8t, which would dissipate 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 accompanying2t5/f tz0qgs;xp/n lh circuit diagram, the current through the 6.0 Ω resistor /txf ; slpq0gn2h/zt5 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 series to a battery. -5 *r aygb9kd4bigv z;Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. Wb-b 5gk*v94 rgaidzy ;hat 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 parallp y99zto78eo18n ludxel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R3 9eo7 81pny zoux98tld?

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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 rated8yb +qe,b,mrf0p0 n 7- rfrufx 1200 watts and 120 volts. What is the maximum value of the current upb,0nb7,r+ -xf qfeyrfu8m0 rnder 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 ,j bngutg 5x2yc4 pxqi3ne qqb;b78y4wgm:+2 operate at 120 volts?e2n2y 8n:+qgq3b w7xx gmg4 4 b5t;b,jpcyui q

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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 resist j1p+ 6zz-ibcie jav3)or that is dissipating 36 watts of powerz-jp+i zi j3bve6) ca1?

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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 volt, +1:g )x-x dbw /(02yv.aofkmgwor b pb600 watt.” In normal use, the curr/wb of .xg:o+1- bymr)w v(0agkdpbx2 ent 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 could NOT be produced by a circuitjvqu ms)7qc5sj e9o45 containing only three identica4oqq5sjcsj5 7e9 m)uvl 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 thrm5 fu)pn4 *vvr1p .ybtee 1.0 Ω resistors. Which of the following equivalent resistancv1p n mu4.rp5 *)vbyftes 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 did g+ gg1r;uz2yfferent values can be connected together in different configurations. If all1yg;durgg z+ 2 three 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 todv pe2s.c-j c8(htjj-z i 3.qq a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a cirsj dq.cjzvt.cj8q-3p 2(hie - cuit 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 resisjryjsgb 6 j6-5tance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is r - b5jjj6sy6gcorrect?

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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 resistance of 12Ω when gsi;95ju(oj :bq vek/ operating at 120 volt qo;5u se9bjg: vk(j/is. 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 throvvsr -/+zm z)h54 uugpugh a 4 ohm resistor that is dissipating 36 watg-m)+z 45hrsz /v upvuts 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 ofi-o +s8wsmq09r;c2 b jsn7 uau current when connected to 120 volts. If the price of eles s u8c;w9 a-sro07mbiu+njq2ctricity 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 lit continsda1o2fip y mdr)2/;qx ,nh 8cuously for 1 year at a rate hf,8 ix c) /nqddo22rpya;s1mof $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 resu4j:(f haw*vbslts in a power of 24.0 W associated with the bulb. Which one of the:* 4sbw fvahj( 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 ownsfq l 9+dz-q9qo asz6c+ a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single 9c6ola+f-z qqs 9+q dzcircuit 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 con p;hg53r u(nipnected to four resistors to form a simple circuit as shown to the uni5g r;ph p(3right.
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 re1jkt92odzzkl *5 lp8wsistors to form a simple circuit as shown to thejlpk9 t 1lzo5 k*28zwd 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 resi9ejj ;3 yemi5tstors are connected as showj5yei3m9tj ; en. 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. (jax( 5kzxdgyp6m,s switch and three resistors are connected as shown. With the switch open as shown in the diagram the p,g6xjsxzaykm (5 .d( 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 batter lkt/l9 b zwhn-2;z1cwxup07hy, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readsnz b;h 9l c1ux0p /hz7ww2tlk- 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 equxor4 yw lu:k.(ivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance R: 4.r(wlykuox.


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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 resistancen 3k38xy4i wvf of the circuit shown to the right with resist34 fi3yxv nk8wances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belo1s )q/oq :grdpd.onu4w shows five identical resistors connected in a combination series and parallel circuit to ap dog1 )ur4:.do nsq/q 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 ideqbq+q l-b b zt)p5r.i-ntical resistors connected in a combination series bi5p-t-. bq + brl)qzqand 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 circuit diagram, v)9- zybs bbd-/l c-wkall of the bulbs are identical. Which bulb will be tcl9kbsb-dz- / vb) wy-he 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 switch and three r bpsh4m p:cn/1esistors are connected as shown. With the switch open as shmncs4p :1phb/ own 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 ammete8n7t(lfo m 8f r)ugwi)r, a switch and three resistors are connected asw fm78 )rt nluo(fgi)8 shown. With the switch 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 batte:afw 4sacj/ t.ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch op:tf.wj /a c4saen 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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