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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, anln cm5c )ubtz8z1c.(d electric current 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 directm.l5zcc dz8t( c)u1n bion 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 resistorsm ko;: ajd 29-g1u -umiitebu3 are connected in parallel, the_________each resistor is tiu 1j--:9bmue3 umig2;kao td he 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 wirek(7 zsbqy:adm +eu+r : of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much czry7:+b: maku(d qes+ooler. 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 the abk a/d;;ysdt ,cronym tk ;/sbd;day, for 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-secti vy w;f1sk bqw yo7hpq7a/m2j-2* tdg0onal 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 h- btqj dawy/o72 1 v;fs2g0ymp*kw7qthe 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 material. Wire II has t;,9b yjvk v)vgwice the diameter and twice the length of I. If I has resistance R, g)vy kv b;,j9vII 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 m4 0dxbg); ua.hsv ,ux 5y,nump)jm-nsame material but has twice the diameter and half the length of wires xm4 dhb)0xyu ngvpnum;a,) -j5u.m, 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 lbfxm5qib8 m. :nrl4t 0 3czmn5ength L and radius r. This piece of material is then drawn so that itmb83n40bt 5lq 5zcf:nir. xm m 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 wants to maes n+evxn/ +fms4br4w)n4/4dtt)h b uke a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in ord/4nf)) xu4w+ t/enbsnt+ r4mdbvsh 4eer 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 qr r8zl+;-8k2:wlrr khtaj3imade of the same material. The length and :3lh tklr jq-az8r;k+8rw2r iradius 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, s,;t.d8ri hv leach of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in patrhvsdl, .8i; rallel 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 circutv-vl3ts 0)la-iog 4t:lr8 -kj8o fdhit diagram has internal resistance 10.0 kW and the ammeter has internal resistanchtkltl v-j : oi8r-s4 30f8adtgvlo)-e 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.,dh z+mu(qti6g.wmmki *8z9 zk8ih 6pq jo2e shown to the right. The three bulbs 1, 2, and 3 - re 6zdkkimu 6 .8gw z(z+j i2ih8me tqp9,oh*qm.presented 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 curren 9rj (map9n(n36oniwx6z /xqst in all three resistors is equal, which of the following statejq6w996onp(nsi(xa r z/ m3xn 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 right represents a simple electric circuit comtzns8 mjf3ji(j: *,fv posed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bufmint* s(38:vz,jjjf lbs)
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 simsyjwz:p8,sgo/o-wukx/c /z;f5 m e2vple circuit shown where resistors R1, R2 and R3 are have equal resistancoc2z5fzp j-ww/yose,/8usx; v/ gm:kes?


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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 aregrs-cw-j, 6m8mev vy2wp. lu3 connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit el -r 8mmpwvu3-2 6gyl,wv c.jesements 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 through the identif( r,07j mzpqvnied resistor in 5 seconds once the circuit was closed? pv70zm(, rqj n


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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 simpr gip8sec,*(ov31pyco 0seva 6sk x(:le circuit have the same resistance, which8svxvcg i0op:,k( yeac ( es*s36r p1o 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 circuit diagram, the current asdjp9g-. k43 uukc6dthrough the 6.0 Ω resistor is-43d6kc u g.up js9akd 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 connected in sersac ajt2xi 7u420a.p:2tf6 ggdkaqz*ies to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, andj 67tx 2 u4c0atgqkspaa:*2d z.a 2gfi R3 dissipates 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 con4ufjf;d u5u-ekasi *- sl2 ;wnnected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is thei*5f un ul2-uk4ajdsfew;- s; 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 1b -,ktflm,p77l x2m mt*c/heu20 volts. What is the maximum valueh *l2/uc,m,- bf7tmlt mpke7x of the current 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 z4p.4p o7.u3 lsoydqv120 vol7zplys o3.4. dopq 4uvts?

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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 k( q yfm4.cm t4un;6uov i+4sjthat is dissipating 36 watts of powtkn; .jcu4o+(m4q6 vfyu4 miser?

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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 cl.qyw1r+u,knx othes is marked "120 volt, 600 watt.” In normaw.kxn1+ qyr u,l 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 resistancexj(p iov7ui98di)1 a1a co q5ms could NOT be produced by a circuit containing only ouqa1d j9 oxiv 8map)1(ii75cthree 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 tk25v wid5k(x ke8 u2)o,wpnxresistors. Which of the following equivalent resistances CANNOT be producd 2i pok n) 2w855xkuk,(wxveted 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 connectedf2i9o+hb d1l r together in different configurations. If all three resistors are used in a circuit, how9h+ 1 frbdoli2 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 connyjev2z;:6kr m4tdzdq 8 pwm98 ected 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 same battery? Assumezq kv6td892j zw m;m:er4 8dyp 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 res 8o8o0hx1u9li *u0xvnl 1doldistance R1 and R2, are connected in parallel, the equivalent resistance of the combi *0n9 l0d uxohd8vio1x8 l1luonation 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 thsa: sazn2jbu,jzf / 7+at it has a resistance of 12Ω when operating at 120 volts7ju a z,j +fbz/s:a2sn. What is the minimum amount of time 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 ih u:mo:e: ek,p,3do8 wrpmd54 ohm resistor that is dissipating 36 wat::eu w5,om 8imodpd h,e3rk:pts of power?

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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 amperekz6.-il n. ptcs of current when connected to 120 volts. If the price of electricityk lnz.-p i.t6c 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 1asy wcsu//ba6, fk w5how much would it cost to keep a 100W lightbulb lit continuously for k6/awb,51a sc /fuysw 1 year 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 curckveuo/ n4+ nlc9/kz9rent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Wc9 k+ uzkle9/v4c/n onhich 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 compr .yngigy 2r* (7i)liputer 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 is the maximum number of the*7iy . )np2ilgr(yi rg 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 a simpl)c/r i9x sy84gkhtgr* e circuit as x * ht)rr9ic4g8/ ygksshown 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 igtvg s+ y4c0ss6: i7nms connected to four resistors to form a simple circuit as shoss06:ggv7 s iy+t4nmcwn 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 a oun0;*tir kb9mmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. krt* u0 9noib;
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 resistors *kwkb,dyfeu *3tz /)care connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0b,c* ykkfedz 3)/utw* 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 rhad16r w.bfldl-s-r2esistors are connected as shown. With the switch open asrdr62s ad.w -bhlfl1 - 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,f4tdv o*p5atw q )hqk*r80qe eq .i:v shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have ikwq tiq)dp4 *ehqt 8.,afo*ver05: v qdentical 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 s ; 9cwhgtdi3z,-4gx nqcy(.q resig3htc9(sixn .d 4gcy ;zw ,q-qstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 swy 5/hm icr jr:t.)puqe02t (lhows five identical resistors connected in a combination series and parallel circu t:c2iq5t)w(j ru/e0hyr ml .pit 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 b9:or ie i8r8og;or f/ d5:ryodjn- q6eelow shows five identical resistors connected in a combination series and parallel circuit to a voltage snygj or ofri8 /eq: :d8ror;9o 5d6-ieource.
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, all9+ /pedn d+m 0ypet7tn of the bulbs are identical. Which bulb will be th+p/9pnmd n7+ etyd 0ete 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 ammeterdht oz//u5lt 8, a switch and three resistors are connected as shown. With the switch open as shown in the d ot8/l5/zt hudiagram 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, a 7/7hez ivvvt+u :cx;gn 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 amperec/7vh:e;vig7x +tvzus.
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, a9rhv7lt0 *w tnjugh/; n ideal ammeter, a switch and three resistors are connecte / u7n0vht9gr;jwl*htd 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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