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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 cirwb+sq /usk2 kg bf( eh.zp,vk*w/-;urrent 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 i. r s/wk+bh(;wp-b eikf, 2z/sug*qvknterior 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, thr sekv); ihn *w:-w5wn7q(bvr e_________each resistor is the same.n r5rhv 7:s)nwe ( vbi*kw-;qw

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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 lightbulbpl 6a(yc2e v7gbe*z. m -wfq/8frlpx3 causes the filament to become white hot, while the larger wires connected to the lightbulb refyl3z -e( 8 qa/7e26*vclrw m p.gbfxpmain 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 j)8hk -jrrqyhypisf34 3s .y)the acronym for whichrj4hiyq3yj-.k3ss 8)yf )p rh 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-sectional fxv c6a-aqv * ziu (.7.iqwf-aarea A. It is to be placed into a circuit, but it first must be cut in half so that the new length is 1/2qvf-cfa.qiwi 6*u (av a7.x-z 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. Wire II v20kdly2 6fxt4qx zeqs(-x/ bhas twice the diameter and twice the length of I. If I has resid4b f/0elq2 6 s2-t yzkxvqxx(stance 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 mad*xad .3b ilwukp61e 4ee of the same material but has twice the diameter and half the length of wire X. If wire X hasb6elwi34x*k1u d. pea 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 lcx) bs 3k2eo+hlvwl +4ength L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What hae 2)vwhlkx 34l +co+sbppens 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 makeug/ 7fiw .vi; qd3pxf6 a brighter light bulb. He decides to modify the filament. How;/wipgqxi7df vf36.u 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 of the.prj*zr9 qc.k, l mds6*6gisu same material. The length and radiukr6r9m.l*. *icjpqzg 6, usdss 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 resistance R, are co9 zz/qvhset-l p *irv( 2+e5fennected to a battery in the following way: “Two resistors are connecq5vse2f+* /zvi9 pehelz r(t- ted 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 ac7be vmkg(b53zl,xv 8 fcompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter readin8l,xbv7v kmz(e 5f 3gbg 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 r3qmx )ub6 21 ax/cukjyight. The three bulbs 1, 2, and 3 x/ )cb1qka uxujy3 m62- 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 rig5y0k2 3pm o+gtahq gr(ht. If the current in all three resistors is equal, which of the fok0o(m agtg +y32p5rhqllowing 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 of 5 hs9jvi0cx 3 y+identical light bulbs and 2 flashlighs yjxv3 i0hc9+t 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 statements9w9u smfy gxp;-v4hn4 (qceb 0 is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have (spuxeh bcmgfn -;q 49v9 y40wequal 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 av8hvt it)mi g:ou4 /t v)w4dhygnv9 ./kz3 j3r battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallelt/3) 4v8zgvtn/ry jd:ht v ok). gvw 4huim39i 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 iwy0/fvbrx c (5dentified resistor in 5 seconds once the circuit wa /wrcy(5xvfb 0s 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 yso 5 huk)qs g/cw/8dp5 :lff1kio:)t simple circuit have the same resistance, which would dissi/i f/p5od5 k8chu)yo1:)lfks: tqw gspate 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 dicn935zp)mwt(s ffr y+agram, the current through the 6.0 Ω resistor is 1.0 A. What is the ps 5r9pzfn3w tf)+ yc(mower 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 R3u.ls*voe 5 ev) are connected in series to a battery. Suppose R1 carries a c )e5vovlus.*eurrent of 2.0 A, R2 has a resistance of 3.0Ω, and 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 resistorswkickl lxpf/g*7 -77v :k+cbo R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the currc fvwl/*: xo-7lcbk7+i 7kkpgent 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 1q3vxwe4uuym nfm -3 3:200 watts and 120 volts. What is the maximum value of the current under these condin - x3mw3vyqe:4fu3mutions?

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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 z 6p5j8k9b5ct62 sse tapw o 98mcywpse6 3dv7120 szt 6es ewm5ppt 8o5ks796cy 6d8j3apb9w2v cvolts?

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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 tha6p v1; y9-watt7 p+tvfvkds( gt is dissipating 36 watts of popy9-pv67(wt+fdk 1agvs;ttv wer?

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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 vpq) ,: ycigdq;+gux w4olt, 600 watt.” In normal use, the current in itu;xqc:4gw g+d,yi)qp 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 resiz0lqx6rzp *i+stances could NOT be produced by a circuit containing only three identical 6Ω resistzl *pqx0 rzi6+ors?

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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 equ0rc:dbqf-sg+ pxkmf.,251 b .wqk ojtivalent resistanc.-j .qkdcqfs+ kb ft5gow021r,b:xmp es 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 connected togethitsaf96+ x451 *z iyhd4 bajcu+w/ptter in different configurations. If all three resistor6 j tfhyidba4wt5uc/ p1xa *i+9+4z sts 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 totah1qvj*j4uz)zf x gs)(*ntn4 l l 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? Assume the internal resistance of juzn)qn)44 s*1jgxl hv*t z(fthe 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, :h wu+y,i,9 m,j flzhzu3ydb4having resistance R1 and R2, are connected in parallel, the equivalenu d,, lu+zzf:3b9iy hmyhwj, 4t 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 designed such that it has a resisk.4(rbux2 hmoxs m7( mtance of 12Ω when operating at 120 volts. What is the minimum amount of timexmu7( xrb4o 2 msk(.hm 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 4 ohm 6 +;7lhmy. eejbchd 9fresistor that is dissipating 36 wattsdml;.7 h b+e9 6fhcyej 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 drawsn pqd77c. o -bfiv1k,e 13 amperes of current when connected to 120 volts. If thbc7.nfkpv d q, o-e71ie 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 how much would it cost to keep a 100W lightbulb lit cont* qj 0xwgex885jnh6cgzt7 8t linuously for 1 year at a rate of 0xw7nejgx 8z t*jcq 8glt568h$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 d4c+:lntxz7r z+bv 4t spg5:k 9pp5y apower of 24.0 W associated with the bulb. Whp 4z+5r7tcs4z+9blyanp:v t g 5:kdxpich 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 ox2 dvkt g-4ck;f a family of six owns a computer rated at 500 watts in a 120 V circuit. If all ckv4; 2t-d cgkxomputers 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 battery is connected to four resistors to form a simple cixlg28q p7v-hevjx(hu it/e5, rcuit as shown to the rqexlh -2 j,tp(/e gv7uvhx85iight.
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:;ugv )q;mw t m*okc)b to form a simple circuit a m)ogcq*ub )v; :mtwk;s 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 areb 7gy)hq0c.zo connected as shown. With the switch open7zh .c0)obyg q 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 dw gx*s :8g1ewideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the d1wwgg* d8xse: iagram 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 s :x(oxrda:e, 0au;e hgwitch and three resistors are connected as shown. With the switch open as shown in the diagram t;x0eox,reh a d(ag u::he 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 + bu0xsfyxa+9aiiyq;0.tir;l*gd-( j )qb rxequivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have ;b0r x0*d ;r i+x aj(it)y- y+xqqsaibu9 lf.gidentical 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 94n( -ot97 cxzuooiml the right with rest-zoc o(on9l9x7ui 4 mistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 bevzn :zmff-ohqbcx 0.a9t7y.a s; :u)olow shows five identical resistors connected in a combination series and parallel circuit to a .x;t09zo v )7soua:-ny.cm fa:fhbzqvoltage 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 fi9)mov*( gibj4w. s njbve identical resistors connected in a combination series and parallel circuit m94n*jsjw ( iov b.gb)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 of6mk3le76s0 m/do6vx:bx iv 9ekgy2t d the bulbs are identical. Which bulb will be the brightest?2d/do evi6k gl :x6kxm6yb37 mt9es0v


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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 batt0od-ne m8fe7(mv1nsq ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagra -ns8(0fn7 emdovem1q m 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 s+:rd wy2cr ts7witch and three resistors are connected as shown. With the switch open as shown in the diagram the awysr+:2d trc7 mmeter 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 three dw5kbupq /eh ,:-y u4qresistors are connected as shown. Wit upkydw4q qeb,5 u:-/hh 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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    总分:50分 及格:30分 时间:不限时
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