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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 meta yh0b- 7myf5wol resistor connected to the battery. Which one of th0 bf7o-y h5mwye 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 are connected in parallel, the_________each r 1o5g tjjokn3.2u rp-lg ,c,bpesistor .nb,ljp o2 kjct 5r,gpg-u1 3ois 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 lightbux ie6elw /2u*h ct.o0zlb causes the filament to become white hot, while the larger wires cthu6xe. z*w0/2o ileconnected 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 replaced witho. ju bbp7c3+i LEDs. LED is the acronym for which one of the following choi3cj oui7.+b pbces?

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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 s ;xqhkxnf2ew : 90tb3resistor 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 of the cyli;k3q 0ft9:b 2xwenshx ndrical 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. Wire II has twice the p *mrkg,hk .9(sg9keb di99*( p skbr ,.hgkgekmameter and twice 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 of the s,uj mo07neh0ebe: yybc5 qc9; ame material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a res:qn09e c7jh,y ey mb;uo50c ebistance 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 offz*d; tkjh bc*ufr.62jqr 2z.ffs7 o 3 material is then drawn so that it is a cylinder with new length 2L. What happens tkjhzb3z2r *sut;cf2ofj..q*7 f dfr6o 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 braa 5yoqxi)8 m:ighter light bulb. He decides to modify the filament. How should the fa8y axmo 5:iq)ilament 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. The lengtr)9s9do )oyfebr0 4frh and radiusfr 4y9e)) b r90odfros 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,57n4 sv bx zrp1fvt0.o are connected to a battery in the foos n1xfz 54bpt. rvv70llowing 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 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 ew2fl27p ri-anternal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter rea22 f-r7il paweding 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. rzkvm armcn /ex 52)68The three bulbs 1, 2, and 3 - representem85vr )n2xe6 m raz/kcd 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 ths+tqo hm3d)a2 e right. If the current in all three resistors is equasq md+ t23o)ahl, 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 simple electricc.) 9xz;s bdcl circuit composed of 5 idlz sdcb).x ;c9entical 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 true concerning the q/76qmg *fxhk6 6+ wvu sl*uilsimple circuit shown where resistors R1, R2 and R3 are have equal resisti/6guxqhql7w* l vfsukm+*6 6ances?


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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 ay)3celp8vu(vmr xt,vu.i7g 2re connected in series to a battery. Bulb X is brighter than bulb Y. Assume all c,v u(ui t2r8lg 7cyvvmpx.3)e ircuit 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 pass thrlbs zj --wh8 bwr/*e25gl(k prough the identified resistor in 5 seconds once the circuit was closed j-(r b2 8erbzwwl-pk lhg5s*/?


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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 hh6dq81vrpet 1c6moysbgh gi.1fsk 3c94; o, the following simple circuit have the same resistance, which would dissipate theihm.qsbf34 oe,h16ckv1c d 6gshry8g p9t;1 o 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 c9u pify3- ns wfbbroo8j0/+1 aircuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage 3bfwou rpin9 yf/+a18j o0s-b 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 batteroaruf6n5h*2 x y. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W offrx n2u6oa*5h 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 cbk tpt0vmzm (2)en2z6 onnected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the currm0bt n2 6vkezm(p2)tzent 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 wyqm 52tl)qi;s atts and 120 volts. What is the maximum value of the current under y5ql2iqt )m;sthese 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 resistl*)s 7ayq5pcini,;/vvk3.;h r q cev 9lvnk8aance of a 60 watt lightbulb designed to operate at 120 vqq;aylk5ik/ec vcsa;n.)3p rn l ,*8vi97hv 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 th1 wn2w rpa lj1,ja7u0nrough a 4 ohm resistor that is dissipating 36 watts of powlr1ja jn71,0au n p2wwer?

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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, 600 watt.uagpl vbvy:c00 4yo71bml0 ,m ” In normal uvmym0,1la70 p40 c b: ubygvlose, 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 resist g6lw5 6m7vqn djie*8bances could NOT be produced by a circuit containi *il65eg7wn8bvqm6 j dng only three identical 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 zk** b iuo/kpgo:nk-0three 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using0/bzn*:kp*k ig kou-o 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 cd)5pukndd a315ge/:ni )-qdizbs n x- onnected together in different configurations. If all three resisto d:bd5p)qkn/dnd-i15 )xgeiz an s-u3 rs 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 total0vg lbu-( h59sv (odla power P is dissipated in the circuit. How much total power is dissipated in a circuit ifavhbo0gs( u9(llv-5d 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 rsw ydh660e 4tbesistance R1 and R2, are connected in parallel, the equivalent resistance of the combinhyd6e 0wb4 ts6ation 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 when operaq y)y jud2:fy4ting at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg ofuy)4d :j2qf yy 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 ret ytpww+w*xzz:3:i z (sistor that is dissipating 36 watts of powerp(tiy:+wtw :xw z *3zz?

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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 conmqv/-tcf :szutv pw e0/t+1v 4nected to 120 volts. tm zvv-/ ts u/evc:04wqt1pf+ If 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 muchyet tg+a32i x6 would it cost to keep a 100W lightbulb lit continuously for 1 year at a r3ity +2eagx 6tate 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 lightbuaok, ;adr7rvh:k6j/l *a,px 58ib nn nlb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lig6aixnlo:b/85n,knvrp hrk*d,a j ;7ahtbulb?

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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 computt s)+1imrw w +ihhxs0-er rated at 500 watts in a 120 V circuit.i0)+mitx h s-1r+ wwsh 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 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 resirus)o k--:1 3glfvp5/ov5ltuvlne r )stors to form a simple circuit as shown to the riglvvtronl-sg ) e5kur1uv5/o )pl3-f:ht.
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 form a simple circuiot t*(mb8bq tgn11 y95ubb/ge t as shnb*5 (gbtby tem9 g1 1b/q8utoown 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 switch and three resistors are*b xyw)i)bsf/:z m:c q connected as shown. With the switch open as shoi: ) :sm*fz bxy)bwc/qwn 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, anwrlr dq(jk.1 +0sl 31:belprb 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 amperq b.131rs:pr( jr+wed llk0lb es.
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 th fbsl*;zy5ksnq ,9f 6gree resistors are connected as shown. With the switch open as shown in the diagram the a5,y;sg6lf9kb z *f sqnmmeter 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 sxv95: ycg6e 6 fbxjc2ohown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors eoc9 x c5 g66yxbvf2j: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 with res e5/ elur60hnlist5l0l u/ree6nhances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in a combinatiu:(c.es4py ee 6)vu,lsm*h ks*. ycdhonh6.h** sk4ssdlve :)upcu(e yyemc., series and 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 five identical resistors con4 xq 7iji.gv)au2(rk cnected in a combination series and parallel circuit to a voltage source v(cu72xija).g4q ik r.
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 identicabsb (xe,sivd lv3y5 3)l. Which bulb will be 5veibvs)l(y,3 d bx3sthe 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 resistorue1x*;e/xgb k-al xf /s are connected as shown. With the switch open as shown in the diagram the ammeter reads e/b x ax;/gx1-*lfkeu2.0 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 resistors are cu9 3ub9rcs5a 6x*ox+g,ssuixb :6pgxonnected as shown. With the switch open as shown in the diagram9rigg+:xca u,uxb39 u*5xb66 ps sxo s 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 idea q 7ioyqb*)akz hqglg,p+38m-l ammeter, a switch and three resistors are connected as shown. With yq-)kbpglazq+ 8qi7 mg, ho*3 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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