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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 ,xxop m22:rftk+*mdq8qr uv) metal resistor connected 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 th2mo, xudkqxrpf *vr+2t)8 q:mrough 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 parayjim4s-7jaf 9 llel, the_________each resistor is the same.j49ajim7 sf y-

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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 dg 3-mge316 m rfvwwx0of a lightbulb causes the filament to become white 1mx6w v0gr-3 mdewf g3hot, 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 xg2xax +,gx:hr(m03 1wxdrbu are being replaced with LEDs. LED is the acronym for which one of the following choices?b:dr1rx(xxghg 2 0xwuxm3+ a,

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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-sectp74vfj rdaavx 0ahmmf blz1)3yi7/- .ional area A. It is to be placed into a circuit, but it first must be cut in half so that the new length b m4x) aimf-v/rjp7yf 0v3h7 ld.aaz1is 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 +a9 tnxw:ubg rhu +/t;kq+hj;-cl 7yaare made of the same material. Wire II has twice the diameter and twic b/;ghw u+tjq;-an 7xy thl+ac +uk9r: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 of the same material but has twice the dir 59eix) q 9:kuvlhm-sameter and half the lengqkul )emhs5ri99-v x: th of wire X. If wire X has a resistance of R then 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 has length L and radius r. This piece of material (s k tpouw 8qs;4r tlss9,z2n9is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this 2k ssnqz9 8tow(; lr,9pt4s sumaterial 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 dn +c06seb5u/ hutnq4 qjyn- 0a brighter light 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 voltas0hujq ecu 5 bq0-+6/tny4dnnge?


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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. Tpz 5i7g -c:vljhe length and radius oc7j-iv lgz:5 pf 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 to a batter)wr5mnisnmai-o60 b 8 y 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 thrrinm-05a8inwb s om 6)ee 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 dyhp:;e2nw/gh huikm:7f b ,v1iagram has internal resistance 10.0 kW and the ammeter has internal resistance 25m :iu,hp/k;: nb2egvhh f7wy 1.0 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 cj cv o130ut9xiy hc45tircuit shown to the right. The three bulbs 1, 2, and 3 -vc4y0 cx 5juih to9t13 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 rig3t k:4zjz 3ieght. If the current in all three resistors is equal, which of334 :izgk ejtz 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 electric circuit composed o xey6-utpww 2;f 5 identical light bulbs and 2 flashlight cw p2e;uty6- xwells. 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 NO 8v7j 2c2dy*sylfdl :,2ww -bph9ojfsT true concerning the simple circuit shown where resistors R1, R2 and R3 are have s 7yfv fj2b,p2j-y :hdw9oldc wsl2*8 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 uxzq-)mk.uq62dw:rj1t ,ma : mxv.hw battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with eauhvatwq.u, km- 2mxw.x:z1q d:) jmr6ch 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 throug zpz)*x-.sq)bav rg*tq8 qb ;jh the identified resistor in 5 secondsqqvb8 .gbzz-pt)s * *;j qx)ra 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 simple circuij 0xsolti 8r;.t have the same resistance, which would dissipate the greatest;i8 o0x jl.trs 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 y dvpv;y+:s1o current through the 6.0 Ω resistor is 1.0 A. What iss+1 y:od;p vyv 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 bqm e zw k xhu;;n7f2u7j,:upc;attery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0kq ;ec7mxuzhn j;w7u up;,:2f 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, R6p7e1p1jldv b*e7x eo2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Whp*6lp ej1 bx do17ve7eat 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 awnu/t0n*i du:wzs *ih 60w.)m wms2mqnd 120 volts. What is the maximum value of the current under these condition 60izhmd:w/smnnwwi)usut.* *mq2w0 s?

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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 resisdhi tfr/,v 8-ztance of a 60 watt lightbulb designed to operate at 120 volttdv-z 8f, /ihrs?

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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 resistor that is dissipap.dk edq7rw(05 nco+rting 36 watts of power(5d. nqw 0o +7rpkdcer?

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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 ir .v g as 0cond+/1rk h:+v,b8e-zlcpopon used to press clothes is marked "120 volt, 600 watt.” In hso8pdo. ca+c,np:e0k +1z lv-/gbvrnormal use, 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 resistances could NOT be produced by a cirw18s)p g3ubygn g+ n)n/fd :rscuit containing only three identical 6Ω resfb)g+sy3ns 8 /)nw1d:rg ungpistors?

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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 folvmc9fn0 jy-e1 rk-nc*lowing equivalent resistances CANNOT be p -fnve-*mn1cc 0jkyr 9roduced 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 conno.bf(9/onl c yected together in different configurations. If all three resistors are used in a circuit, how mabo(/l9 .nfyo cny 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 total power P ika/dnc/l/ iz r 9 f4ihvw4*vk;s dissipated in the circuit. How much total power is dissipated in a circu ;/ir c/nhz*9l4kivwk f4 va/dit 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 resistan89xcsm--ftsab3h + f zmnw2r;oyb y( 6ce R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements abb9( ;sncwht-z-y a mxr8 bs6fom+y2 3fout 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 operatd+jaxs. ntvu;( z5ij3 ing at 120 volts. What is the minimum amount of time thav; 5s(ux.azjjtn3 +d it 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 resisto:h3bu ov5-ha nr that is dissipating 36 watts of -b5hnoh:u3 avpower?

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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 ,i+vyo w*3(hzyj7pbbc ix 5jg1y+w p/amperes of current when connected to 120 volts. If the price of ejbzwwiy7c /vph,5*b + yx(i1j3+ yg polectricity 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 l +oz3anu6ax+l ightbulb lit continuously for 1 year a6zxu a+l o+3ant 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 ligm2o 8pvxo168bg5rg pvhtbulb results in a power of 24.0 W associated with the bulb. Whicv rpo2og86mp x158bgv h 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 apq2jew fv,8z .h4kyrr,ed y9ik g0*j6 family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fus k4rwq6 2jfjz*kg.ev, d, y9eip0yhr8e, 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 resistors to form p br4g/c5d75o z-elhh qb- t0 7cebgbm835yyja simple circuit as shown to t7e jlqh/rz 3py0c-ge 7bt-5cod8b5h5bb4 myg he 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 battery is connected to four resistors to form ams0 qux )b .ic9)jht8v simple circuit as shown to t j)qv st90u xhi)m.b8che 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 batter zm*/ ayz1ch 8fuv8 qupef0t/*y, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown i0ufphz1qc*zya vue/m *8t/ f8n 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 a8y*1mck (s zo-ir 0frny ;j*lbmmeter, a switch and three resistors are connected as shown. With t(csrro-fbz *0 n ymjy; ki18l*he 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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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 resistors are5x;i oj6mlje-1,+ a: xbw bupp connected as shown. With the switch open as shown in the diag1-pal o6m,bjj 5 :x xw;ieb+puram 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 righ t:jz yx1mn3r4 wncw 0n2*9hsjt, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resh4wmjn zcn01:*2x wn9s3yrj t istance, 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 ,y cox: ,hep9g the right with resistanc,,y:o9exgchp es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 com c+e;8yq:ezqn9f h/q2/dsula4jaj(n bination series and parallel nl8nje(aq:dcz ehs 92 f+;jqu/a y4 q/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 connected in a co :rzy2 ovz*6wimbination series and parallel circuit to a vri o2z *w6vzy:oltage 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.8 ieu/emx3t9h Which bulb will bu i3e /te9h8xme 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 ammeter, a switch and three resistors lm2es2djk9cddn4r5 :zf*fs o ;;0 tjkare connected as shown. With the switch open as sck29:sozrj40 n*f;etm l2k sfddj5 d;hown 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 ammeter, a switch and three reslyk1 kbg2,y f hrkl(cg.1h:3s istors are connected as shown. With the switch open as shown in the diagr1s gk:,yrk.3 yhh b(gk fc2l1lam 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 .q;e1/w im x:gwdb .uvswitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ambq/mvi dxw; .we .:g1uperes.
When the switch is closed, what would be the current in the circuit?


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