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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 exissbo -.8diy(nzbzvl5d6f 3;ji ts in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow throug znbd3zf-s ibjyl6. ov 8d5i(;h 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_________eacem-3gz x +bdy/k. +k.5skqcfqh resistor is thef gqky. c+bk 5ez.k3s d/m+q-x 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 lightb0 qntst:*/ni,i qy*h eulb causes the filament to become white hot, while the larger wires connected to the light i/y,e0iqq s tnn:*h*tbulb 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. L +ufmv7q*gb1 yED is the acronym for which one of tu* 7ygb+vfm 1qhe 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 Lzciu9c( uqs8m 1i/pru,c*jc(ggs1u, -2zj zj 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 resistiijp 8,19(j-,zgjr(usmz ccuuq1* cu cz2s i/g vity 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 o t819y9ked8gj +qjr qmade of the same material. Wire II has twice the diameter and twice the length of I. Ij8y9 dt qoe+gqr8k91jf 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 diamete,c ygqm :6zag9b8+vnpr and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistabamv+c yqpg,8 96gn: znce 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 p9p5f phxu36qeiece of material is th3up5xqh6 ef 9pen drawn so that it is a cylinder with new 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 Edison xiw.xq5f5j3nv 1z l(i36pn ep wants to make a brighter light bulb. He decides to modify the 5z(j36vnfi1npxx l p.3iw5 qe filament. How should the filament 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 q7rm*hf;bg+bx9:zm mkc/v t+ of the same material. The length and radius of ecx9 ;/gvrb+fb +7kthzm m*mq:ach 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 connect((1fibmo4xo med to a battery 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 three resistors is connected in series to a fourth resistor.” What is the equivalent resistance of this arrangement of four resi41fm( o( bioxmstors?

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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 int tj/eo )u+ol 2. ,3.mmzatstlmernal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading )o +m2oe ml. lt,3st.jumtz/a 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 th7ud,dd-ssfhty3d/ p 4e right. The three bulbs 1, 2, and 3 - represented as resistors in the diagr-d3fudtd/,7 4spyds ham
- 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 curren(dbyjs-u(c m *t in all threj*uyc -m (db(se resistors is equal, 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 simpl/8isz4qxgu 6,vys * ore electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs)6 s iz8v,soxug*yq /r4
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 simp- h.; vna 0ax3nguz-k1sfx-blle circuitu -xsl1 .;z-3fv0nnbghax- ka shown where resistors R1, R2 and R3 are have 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 mly23e-s i-fy to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parall3msieyl--f y2 el 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 thrps. z, x3i:ak)e zq2sgough the identified resistor in 5 secondsg),exqzips.a :sz k23 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 circuit have t4 h0jq4b:gk7pno, d 93tulxi xwo3hckaeg(4 :he same resistance, which would di97o( b3kxg3,d woiu4:hlaj 4 tqk eg: xhnc4p0ssipate 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 circuit diagram, the curre2zwb6)yla s9tyc0hu v . -rga5nt through the 6.0 Ω resistor w6y.v-0bz2h s9)r 5cga luatyis 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 con9 rw r**vf:4+1kvety m9ua p5 (svqdlcnected 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 o e5v v4f s mdpq+kv 1uytwrac:99r*l(*f 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 connected in pyi 9o:e l*yfc*arallel to a battery. Suppo lfy9**eo:yc ise R1 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 watts and 120 vohge0xh e7gm68c6hnjxwo7fgsr7 , ) -k lts. What is the maximum value of the current under these cond76rge h7h6 onkcgh-8wg,x m)fxje s70 itions?

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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 des5z. k *x8ncwhi1.gtmqigned to operate at 120 vo8h k.t*nc ig.qxw1zm5 lts?

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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/, g8t*r),hyplw hrnhp d i;)(wz h1ko dissipating 36 watygl r(1,id;pr np ohwwhk/z)h*t8h ,)ts 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 press clothes is marked "120 volt, 600 watth 6/x qj; bf+fhaj;gj2/0 ebjg.” In normal use, the current in 0q;/he6bf j/;x + jgjb 2fjahgit 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 rk6q :or*4wu z/huucf/esistances could NOT be produced by a circuit containing only three identical 6Ω resi uz:h oqk4/uw6u*fr/c stors?

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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 resistorswmv1k 1r .zf+w. Which of the following equivalent resistances CA mf. vwk1zr+w1NNOT 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 connected together in differenrr-)5ph;+p dlzh/ea8hcf 6 ah t configurations. If all three resi8 /)rlrhp5chafz+6ad;hhe-pstors 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 total powfem-*8c ) -fidwf;gbaer P is dissipated in the circuit. How much total power is dissipated in a circu dewfiffc8 *-mgba;-)it 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, are connected i647(ac2qt lkh3ppa ,di5nr fi n parallel, theipl5hfr26t, q3d7akacnp 4i( 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 deiv90odm2(d ai signed such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg imdi v09(ao2 dof 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/ cp2-imvp fqm(+nmh , 4 ohm resistor that is dissipating 36 watts of m-cp(vm mq + fh,np/2ipower?

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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 he bd0 ec.cnp,zgdw9( -sater draws 13 amperes of current when connected to 120 volts- p9cde .,g sd(n0zbwc. 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 hokj6;k1r+qdck w much would it cost to keep a 100W lightbulb lit continuously for 1 kj+kqc;1 d 6kryear at 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 lightbulb results in a power of 2/d :i4 zthh * a(pvdkrry.n-3b4.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbu nz/:43p.*rd-yk r dbaihv(th lb?

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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 facb 5qj,i0s. kpmily of six owns a computer rated at 500 watts in a 120 V circuit. 5 ,.pk0 ibjqscIf 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 batter4*ev)70* 6xbuugossqc;zd syy is connected to four resistors to form a simple circuit as shown to the scu 7)u*4b; *eq goysdxz06svright.
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 forao yv0 9fiavtfn:67 v1m a simple circuit as shown to the rig:7oay1f 9 f6ntiva0vvht.
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 rmnyqji; h+/:g4 2kzvswitch and three resistors are connected as shown. With the switch open as sho4hm/v2yq :;gr ji+ knzwn 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 switch and three resist x* w5/c8/kbw bb5soncors are connected as shown. With the switch open as shown8sn kbwbcx5o5 *bw /c/ 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 resi1tkb ,qz0z:/ xw 8xxsr41je- 6i ilvilstors are connectedwks4:erj6-xz1 0,ixxb iil1v/8tzl q as 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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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 equivalent resista;9xm7tc32k-aq74b hg o t3ptxuxua,x)7 xf lvnce? Assume that all wires are ideal, the battery has no3x-u4c)xx7moxv3f ab ut7txhp , aqk;g72lt9 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 rel,u5h fwtj7s 7sistance of the circuit shown to the right with resistances w,thfl7 5su7j$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identic:lf,6 7eo6snnf+khy. ud i :eaal resistors connected in a combination series and parallel circuit to a l:6hf7 ky:o.6 df e,+inuasenvoltage 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 :/7r+ u nm9z)qm5le4frbnav jshows five identical resistors connected in a combinatil594fn mu/z7r e r+avm:j)qnbon 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 diagramucu;kv g8/a 1y, all of the bulbs are identical. Which bulb will be the brc8ay; gv /k1uuightest?


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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 sw6. cayn eclq;b.u(k/zpljfkx1*mp- , itch and three resistors are connected as shown. With the switch open as shown in the diagram the ammet; qz*/1.k-.(m lef pn,yxju lcba6 ckper 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 rez a2gkxy,b7b-w(y bo8utmg9( sistors are connected as shown. With the switch open as shown in the diou (ba t8mgy2 kby9xz7-(b,g wagram 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 s43 q iqs:bh4dswitch and three resistors are connected as shown. With the switch open as shown in the diagram :4 db3sihq4 qsthe ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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