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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 exists in the .xyp hu+0u 2hrmetal resistor connected to the battery. Which one of the following choices best describxyhr20+u. puh es 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 are2 1 crjrsi)xf1 connected in parallel, the_________each resistor is the samxr2 cjr 1sif1)e.

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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 lightbulb causes the r1:t)d ;cspwbfilament to become w)p bws1t d;c:rhite 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 bein0avk3ppogi6+7h f;feg replaced with LEDs. LED is the acronym for which one of the followin ;apkf+3efipg06 ovh7g 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 graphit/ihuehikqc+p*m g 7i9 z1(r,o e resistor has length L and cross-sectional area A. It is to b gezrhiio1uh p *7mc(k9q/i,+ e 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 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. Wireav k2y1v2 w hon+x9:kr II has twice the diameter and twice the length of I. Iw a9 vk1hvkyr+22 x:nof 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 diameter and half t wcnr5221rf*o,cbbyy he length of wire X. If wire X has a resista12b2 *ow5 nbyr,ycrcfnce 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 radiu1b+. il sekt1, gvdh ,w:0gjnns r. This piece of material is then drawn so that it is a cylinder with new length 2L. What ilb0,n 1 kjn+:t hwg.ed,1v sghappens 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 Ediso2fw5dtzif y58(xstzm / 24uupq*:cqpn wants to make a brighter light bulb. He decides to5 : / tp2misxz2uc5 py(f4*uwqd 8qzft modify the 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 rjge ifknpk+ o3-/f +tzfg3t5)esistors are made of the same material. The length and radiuf t)5/zjnge +o3k+pf fig3kt-s 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 resistabxga0r. 9e,lmz-.2r si h+bfqnce R, are connected 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 ra,9ez 0.gb ilr2.mfb x-+qh sfour 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 cin rhe00p +h w57qh8dj)1ftfvc rcuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeteqhvtc )5nwde +817jr0hh0ffp r 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 +qk5bl r6 ser-a*o0i5wc vq2xshown to the right. The three bulbs 1, 2, alrc0eq- 25bok+ xrvw sq*6i5 and 3 - 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 right. If the cuxrq7n b:cwq 3sn;7ro +rrent in all three resistors is equal, which of the following st37w:c7snr q xb+oq ;rnatements 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 ofdt)s p oq8sg +o4hj8yx*m-s)x 5 identical lmy8s *-q4ogd+ x)xss8o)ph jtight 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 simple ojk9(d uk. uu m(ah93ncircuit shown where resistors uk ja(9k.9m( uh3u nodR1, 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 s,5 s, oa6jd4nern r6pg0u7 m):zwyveberies to a battery. Bulb X is brighter than bulb Y. Assume all circuit elementso ,e4m gnzanr,05de)b 6 7:sp6yuwjvr 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 iz:7qozipa,l+uv3(x u5fs g f7dentified resistor in 5 seconds once the cirp(zxu77 f l+iuoa:gzv5q,3fscuit 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 ul2 .zot 2v3ypbiy0;e,v9mc m the following simple circuit have the same resistanceuo9 yc2y bm,zt2 .v0pv ;3liem, which 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, t3*;ytnyt) d/2uj ejthhe current through the 6.0 Ω resistor is 1.0 A. Whath tjj /y)3u;*edty nt2 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 ar, 42bw voh0af7ug/ phye connected 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 of power. Wwfuy72o vhbh,a4p0g /hat 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 paratk 9qfrb-//-1elym9b ik eg1wo71 ekellel to a battery. Suppkqb9r / eb7ekg1e1yk/1 ft--9liwo m eose 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 12f7emu ;euik 8-0 volts. What is the maximum value of the current un-e f8iuke7m ;uder 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 . sllmcg50 hcv:e-b s+ak5; s y-tgo8cat 120 volts? som:h5llvces 5-g-b tk8+scya g.;0c

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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 thatk.yit 2 5a q,zkfmyl4) is dissipating 36 watt) iz am5.tf2kq 4y,lyks 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 userbd4o3nnl (6i7g5 nhtd to press clothes is marked "120 volt, 600 watt.” In normal use, the current in itn6(5n73ld ioh4nrg b t 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 j*h :-5qrw kl y+rhfo*circuit containing only thrh:wh*rr-*k5jqyof l+ee 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 following rr h09ncgyb00 a2sbrd94 4dfxequivalent resistancbx9 db0 rhd 0rg42srfay4n9c 0es 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 connectegvj vr+ 6k yx/yc-a4:bd together in different configurations. If all t y/ -gba:v6+kcyvj4rxhree resistors 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, iyv6os0wh7gh99bo e)l,m* oha 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 hs h )wlevh 97o, y0m9*ibg6oousing 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 robrg/-dcn s88 esistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which o/8-gb dn r8socf 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 des5 f:yeuduoeb t *uq n3z-- yo2xf6m.pn )6wf9tigned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that itp u.n)-x:wuefo y6d 5f 3tf 9-onu26qtmbzye* 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 curreomq+8/ji:vy1n ckxfyheswf v; / 0+, gnt flows through a 4 ohm resistor that is dissipating 36 wattx1kjgqec/+ yiv +0snho:/w v; mffy8,s 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 amperes ofeuaq 0pryxf(ah-b nk. 0tuv0w92 db0bl a+s-0 current when connected to 120 volts. If the price of ef+0 n-ba ek2awblu qhs9tp0x. - 00ayv0(d ubrlectricity 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 wouldfey0m77vep 4hx0 wxxj mavz7y b5)+.p it cost to keep a 100W lightbulb lit continuously for 1 year at a rate of x7 px)7m.x py 5ehjwa47 0v0f+zvyemb$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 pfrc 5 o)xb e 85; r(,k*qnzhph-y/vdtzower of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbulzyx,t( -rk;/p55d8* boc)ferq nz hv hb?

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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 famiq0 :plf,zm dp0i;*dn zly 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 zqzl; ,n p:p0 id0dmf*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 connec.: mvb kbsde 9cw8x.b;j1:rs oted to four resistors to form a simple circuit as shodcm;wo 1b.re:ss98b v:b . kjxwn 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 forn(cfmm7fi/ kfnh()g* m a simple circuit as sho(fhn n *gf(/fm7 im)ckwn 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, al. )lv1xx9a +k8 jigfnn ideal ammeter, a switch and three resistors are connected as shx+k1 ljfv ) 8g.i9xlnaown. With 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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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, .4e j,adeut(ua switch and three resistors are connected as shown. With the switch openu4ejaud ,e.(t 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 mxt0t/ *f+lt p(vt2otmz( hb2, a switch and three resistors are connected as shown. With the switch open as shown in the diagx 2v(tt+bo 02t p/t(zhtlmf*mram 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 resy aw npc8jj46xm;b )g)istance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors 84a ))gxy;n6wc bpjmj 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 o5dxel cll:oxu0a--w vh8:i8 af the circuit shown to the right with resistanc ildcah5:0llw u-:-x8aexov 8es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resisdgeh8 kh5:qc: tors connected in a combination series :dhk5q:hgc 8e 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 skeu,zr**don wmm) e/m:ci5:chows five identical resistors connected in a combination series and parallel circuit to a vodm*u*ci,/):ronmkme: c 5 e wzltage 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 iecwyzg(y0, 4 c)bsexga1ed6;bl3 ; n the bulbs are identical. Which bulb will be the brightest? s;6; ge3x1e 0yeyc(dbcnl),4z ia b wg


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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 switcr 5)7nkoqe uwd h:,b1eh and three resistors are connected as shown. With the swit hnb,rk)q5e wueo d7:1ch 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 thrzr(i vz4y;, toqpj7z3ee resistors are connected as s4i3z7z j; p(,rz tqyovhown. With 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, a switch and thre )1uu(a5 2c 6nazk3e7jh wcyzhe resistors are connected as shown. With the switch open as shown in the diagram the ammeter h a3(zjy5c 1ne)6 uk2h7awucz reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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