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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 electric current exists in the metac9q.4 qnpd(;z1 ox xb/euq (tvl resistor connected to the battery. Which one of the folxt.eq (;1po d (9cxu4qzvnq b/lowing 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 are connectedhzqk7 5-f;)a :nzyeymixt4m8-uc k.b-qh /bf in parallel, the_________each resistbn k7-qki. -4yh5 /z:bq;zu-mxeacy)hft mf8or 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 licifavv o(2.gpt;bz j6p./ ys+ghtbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cozb(c;tipg y.v6f+ s2jop./ va oler. 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 hous .( e wog-wx+ z0hx5hxekk7sk*ehold lights are being replaced with LEDs. LED is the acronym e -kkh.0 xwwoh7g ze(+xkx*5sfor 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-sectional area A. 5h9ry y i.wz7i 2eut-lIt 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 . tw52zhu-l i9ry7iyeto 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 wirgmr6lw i-xae01e k29cmg5 .pb ck,r5le II are made of the same material. Wire II has twice the diameter and twice the length of I.xb legw55r - acc9g2 kel06 m,kr.p1im 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 of the same material but has twice the dup)-ew8eo nk: iameter and half the length of wire X. If wire X has a resistance of R then wire Y )p8en:ke uo- wwould 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 ressk ;tmhko9);x 5npav1 istor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of tv;59) anh1okpkt ;m sxhis 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 li3, 7ab6e8d+g 9 hfavw vkfua:lght bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given voltage?9vf+6l,w3:a a7akhvdfe u b8g


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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 theg, lpict2+e* c same material. The length and radius oe +gc*pt ,c2lif 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 resistorphei gwn q13s976 nc6xs, each of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two rxgp63s 1ic n7whn9e 6qesistors 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 accom/x7)pskzy1(r22i e5uwtlg t xpanying circuit diagram has internal resistance 10.0 kW and the ammeterswik2yz)/t eux7lt 512pg rx( 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 compound circuit shown to the right9r2ez- rs zh.:f7e ufq vv*u;a. The three bulbs 1, 2, and 3 - represented as resistors in the diagraz:r9vef f r-.sh2z; 7que* avum
- 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 el(t4ob vt6x(ax uhiv*s *sddjw 3++e 9nectrical circuit at the right. If the current in all three resistors is equal, which of the following statebaxv*u6st(eht3i+svo(n*4 9dxjd w+ ments 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 rig(3az6c lv q- v3h6jnwg-omk-bht represents a simple electric circuit composed of 5 identical lighmgv66ljwq3 z- ok( a-h-bncv3t 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 follg f -,m5913i twcc*vyujdq9vl4qms2 towing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistances?l5, c qqv2s1du gt93i *mc-fw 9yjtv4m


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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 cony ,mqytr)vt 6 -pcf,-znected 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 ry,fcvy6t,zqp-mt)- 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 tgs p,0o:1b:u szar rbx;b:s8vhe identified resistor in 5 sp,bsbu:o:vg s a1; 0xz br8r: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 g:wad8/cf .y 5xz(kdr simple circuit have the same resir5yc /x.gwfk:a(zd8 dstance, 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 accompanying 4 ty2+ q5qdk:qasm3xfcircuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply fq+2 a:kdxq 45m3qt syvoltage 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 arq ij*-qh soe.lp)sd) +e connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. Whdie)jsqp+.* qs-ohl)at 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 iqs;qtqs )9(cbattery. Suppose R19sqsi(c) ;qt q 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 wattsdh4m 4xe4w-yz 9t6sfghl *hw5 and 120 volts. What is the maximum value of the current under5mxz4- ew9*y s hlg464whthf d 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 60b)zsz;s j0d6k9 (ijgv kd) eq; watt lightbulb designed to operate at 120 vq6v0je k dik s;g)9z ;()djbzsolts?

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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 thgg5(l gk: wssmug8 t37rough a 4 ohm resistor that is dissipating 36 waugkg3l sw5 g :mt7(8gstts 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 g6: 9 s+trdb;fg-g knzt)ges3press clothes is marked "120 volt, 600 watt.” In normal use, the curre3 ke6fg-ss+g;r :z tbtggn)d9nt 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 circuit con ef w+el odbm30;,*dsvtaining only three identicam;dvbeseow*30,+ fd ll 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 resistors. Which of the following equivc*iqb7qt4e3w-cj q( f alent resistances CANNOT be prt7fj3q (iqwc- *4ebc qoduced 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 ia1e/h punkvm (0 m-ericf917on different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be producedh o1fc -k0n/v 71eipr9 emua(m?

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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 cov 6kjd+0g)k yp+ ,noxikwux0)nnected to a 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 +0n ,j y )x)kpk6 +wgxu0iokdvsame 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, are conne7n6 c4ywbt)izcted in parallel, in4 tz)w7 yb6cthe equivalent resistance 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 resistance of 12Ω whj;cbpj q832ukj7et4 v en operating at 120 volts. What is the minimum amount of tick3;qj pej2u j74btv 8me 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 resiszbcnt,p * f-4jtor that is dissipating 36 watts of power?bf-*pjn,t z4c

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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 draas d 5ukk5gnm,1 nn,;zws 13 amperes of current when connected to 120 volts. If the price of elecnm d5g ,;ns u1anzk5k,tricity 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 colcap f 8v5n;nks 7;yl/st to keep a 100W lightbulb lit continuously for 1 year at fk5nc y;vnl /a8sl7p ;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.yl o:iep29;wh(cqzb - 00 A through a lightbulb results in a power of 24.2lzh i9yc pw(;qbo-e: 0 W associated 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 family of six owns a computer rated at 500 wat5waz-2lls jka xbw8.qrz;*m,ts 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 cow2 b kq8;mwlz5*rla,-jsx .az mputers 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 akwom9; e-++iwlir opl j ,v.t4 simple circuit as shown to the right.il+mr w,it jv-k4;oeo+w.l 9 p
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 resistors to fovvnv*/npkil);02u0 rh dc3 vmqry85 lrm a simple circuit as shown to the vmn c 35r v);l/u2ivpr0d0y8qk lv*hnright.
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 9+dzusneg gh0ei n 7f).47by tand three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a7.bgts e70e+ 4gdu9n)zn yhifmperes.
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, a1qxi+ 1i2i-/upl9 ,lazxx dqi n 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 aml qpi xq/ 1zx9x u2-ld+iai1,iperes.
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 amxe e5, (0t snr;5zscgb f;5+ crnxrv0xmeter, a switch and three resistors are connected as shown. With the switch open as shown in 5sgs,cnxxvbfre(+cn 5;t rr00 x;z5e 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 tvt(gb3q,r0*eo1 gkvnhe right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have vg1ngk rqb0(e3 *v, otidentical 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 :z2 d. cir 7zcqgi(k)v the right with resistan)zz2cc:ivid qrg7 k(. ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 con:ie dre 1:bo2kl78ts6 jup d-*hh/b gynected in a combination series and parallel circuit to ag *-h:21/uyb o6pr:d 7lk bihtje8 sde 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 id)tzr3 -,+l .gxm/pq9iiadwnpvy o 7d/entical resistors connected in a combination da+x-i l3rgdwzy/9)v. omtq7n,i pp/series 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 circuit diagram, all of the bulbs are identical. Wz91(y1:fbfr a7 go+ i5tc.d h loxtp/fhich bulb will be / t(zob hry.x1t+51f i7glffpdao9 c :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 batterzehi1 5 0 fck2hai1e-)tpwoi* y, an 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 ampp11 -* 2 5hft)iekweioz c0ihaeres.
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 thknb9y8fn;h8k +kg, m tree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. nbh+8m;8tkk9nf k,yg
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 thref-r:g+2gj phu a1vkx 821 tmxce resistors are connected a-g8mg2 j +1th:uxck2 vf1 xpars 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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    总分:50分 及格:30分 时间:不限时
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