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习题练习:.Resistor.

 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 v;o6akf1en2t exists in the 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 through the interior of the1ao 2tnk ;6vef 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 para(7e j;3iandd tn rxu,1llel, the_________each resistor is th(7r iun t ,nxe;1j3ddae 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 w)+6bvrw5x6-hv8g9mz bm eo hrrq- bguz 0v(:uire of a lightbulb causes the filamentru-6 g09bhhg)o-u:ze +b5zmv( brmv8v qrxw6 to become white hot, 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 replaced with LEDs. LED is t)g.(cg,ekd sn he acronym for which one of theg )k,(cg.n eds 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 resi4p9hpw ,hnt,k,h *q bsstor 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 resistivi,bqhpph4,htsn* k9,w ty 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 mate02w xmp y+9k7eendtd 0rial. Wire II has twice the diameter and twice the length of I. If I has resistance R, 0t2ewe7y0dn d9xk mp +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 xgsxm0a 4dd/ )material but has twice the diameter and half the length of wire X. If wire X has a xam /d)x4sg d0resistance 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 mater1et3n t8z zmmuoz0d/k-v-:ew tiv4* x ial is then drawn so that it is a cylinder with new length 2L. What happens 1/nokumt*et zvw0v --38md:z etixz4 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 Edison wasko rdd- f*/-z7d ejd(nts to make a brighter light bulb. He decides to modify the filament. How should the filament of a lighd*d/red-ofks7d-z ( jtbulb 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 resve1v/0o qx ywqvnea 81 1eogoozp 3*91istors are made of the same material. The length and radius of each resis18vxz eo q9n3o11voy 1e0ae *wovg/pq tor 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 resistorsrxx8 a60mdvgf(xlw 7c 6t-wp9, each of resistance R, are connected to a battery in the following w 9 v cwfxxw(p7rlg tm8d06a6-xay: “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 77dpvb,v v8u +dvm mg(circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ou+ mvmpv(g8v ,d7vb7dhm. 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. Th5xj6 sv d )76wsaq q sy8h*98eymepa(ce three bulbs 1, 2, and 3 - represe(aa6wce9v* )67s 8x5p 8hqm sejdsqy ynted 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 fiovjot7 8kuh)d* 52n current in all three resistors is equal, wk7du) ioo5f*hj8 tnv 2hich 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 si i wn)w3qbj+ls8 dovifd1 p6(2mple electric circuit composed of 5 identical light bul fj1di38w6 no2iqvp+)s( bwdlbs 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 se5lw3vo*0z+vz 81m jd yb7wsptatements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resist b z5 ov1s3p0j 8+v7wmlyw*edzances?


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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 bar.+(y .;qtp9b o: vuqicf3tkbttery. 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 s: (uycv.+fobq9ttpq ri.3;kbame 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 coulojs3 0pl (cp8voy 19ot;vg d8ng2arw:ymbs will pass through the identified resistor in 5 seconds once 9ol ad j( w108pg3vgoyrcn;28t:yspv 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 resistqb/ alfk pofv6(y2- -eors in the following simple circuit have the same resistance, which would dissipate the greatest power? qfypv- lf- 6 bk2oea/(


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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 current through the 6.0 1yc.xc2c2uk 6q fcj/, v2ncc(tbmxo 4 Ω resistor is 1.0 A. What isc2j y2m(c,nx ft /x6v24cbqcuco k1.c 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. Si7( *rui kz)uguppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipat*gizu(7ir k u)es 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 conn47en 7 budxy,uafoxp/j-ik/ j8b2r k)ected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 y7d/-/ x2u j4pfj b)b kxrnu8ai,k7eoW. 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 6sr+agoyb/g0:2 gv f i+(b5wuk n z,fvrated 1200 watts and 120 volts. What is the maximum value of the curref,wu( +v5gas gg0b zi/n6kfo :+v2 ybrnt under 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 operate at 120l ,p.5grv2accf-0hup-l *t(giu 5afn volt-ga (5lp-5*avlprfuh ti.02gccu,f ns?

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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 ) fpvj9q92x(i/ gcxpj is dissipating 36 watts of poiq(x vj9/)pgjx9 2cf pwer?

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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 "120d(-lz w5+cpd y*gra(i volt, 600 watt.” In normal u(5wl*ydc-d+gp r az i(se, 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 bh/v4aw 5m/iok :xpt/y e produced by a circuit containing only threai hw/xyo4pmv 5 :t//ke 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 three 1.0 Ω resistors. Which of the follo-n qyd10u se5p xf d.66hf91hj6go lckwing equivalent resistanyu 6xddfl0 jh.q-o h9e nsc 5f6161kpgces 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 cp k3v8kqoefm)q,: sb 4onnected together in different configurations. If all three resistors are used in a circuit, ho:)o43qfbpqmkv ,s 8 ekw 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 ;o.9e27j wp. w8ackvvo pe rq,connected to a battery, a total power P is dissipated in the circuit. How much total po wor pke.87qe9. ;cawv,vo2p jwer is dissipated in a circuit 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 resistance R1 and R2, arek1,nfner5dq4 dyiqk3ky-z zlv x ( :+. connected in parallel, the equivalent resistanckx rn(5ei- y+dln zdykqv.z:4 1,qfk3 e 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 when operati( z87lq. -xomm+fpsghng at 120 volts. What is the minimum amount of time that it would take to hx7l omp+fs- zg m.8(qwarm 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 resistor that is :o,k *rzj2z;rlh*jn sdissipating 36 watts of power?n;l*, zjohsrjk 2:*z r

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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 connected to 120 v25ymz( n+ xu(xjg;) e bn4ssypolts. If the price of 5(s2y4b z (g+s;jnxmpn) uyexelectricity 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 costy2 td3 4yiwjq+ to keep a 100W lightbulb lit continuously for 1 year at y j2idqt3wy+ 4a 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 liohfw7yy)+*e /tms (75limu ;6yfr vhjl j8r:qghtbulb results in a power of 24.0 W associated with the bulb. Which one o/j* w lmftqy( fh+ihe y:j;7v 7los5rm6ru y8)f 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 ),k3d db(zonz 9cq)ffowns 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 fuse, what dnc) )kbzfz ofd9q3(,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 fo)0f3hyvfk- qyrm a simple circuit as showny)qkhff3 vy -0 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 battery is connected to four resistors to form a si ,ge2;q gtngt g.idt43mple circuit 234ind. eqgtg ;g t,tgas 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 ammeter, a switch and three resistors ale zb339)2,s x9ibq fr+jxmtc re connected as shown. With the switch open as shown in the e9x, qc t2+ 9lx3jzs)3f ribbmdiagram 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 and three resss)u dk96 irr g1z*mrl4dy40sistors are connected as shown. With the switcglduzissr064sd9)1 * 4rmrykh 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 86s n)kkc+iaw o4rvbhg ;r x,,three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2csh4 6w,korbg;n rixa,v k+ 8).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 ribri.+yat1 zrs6s. j/x ght, what is the equivalent resistance? Assume that all wires are ideal, the batsrx z/rb1a.y+js.t6 itery 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 fo (lm 6)d+92 amlaqqeshown to the right with resist ql9mmol+d() qa 6ae2fances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 shoi2ohfp4u t 2j0ws five identical resistors connected in a combination series and parallel circuit to a voh0pijf24uo 2t ltage 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 ik8q5d0 kt or;adentical resistors connected in a combination sekk0qd 8t; oar5ries 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 613 fkjumv6xo the bulbs are identical. Which bulb will be the bf kvx1m6ju3 6orightest?


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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 ammec6;clln3 pilr( f-d)jg67 m luter, a switch and three resistors are connected as shown. Wi3)6jcfirl(l6dcl-l u;pmg7n th 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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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 tho jou0.uw/c7(ov qh8 dree resistors are connected as shown. Wio8 q0 d7(uuvhoj/oc. wth 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 battery, an ideal ammeter, vrwxsky-68iqz...c s a switch and three resistors are connected as shown. With the switch open as shown in the diagram the x6s- .ck.wzi qy8.vsr ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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