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习题练习:--Inductors



 作者: admin发布日期: 2024-08-03 15:44   总分: 10分  得分: _____________

答题人: 匿名未登录  开始时间: 24年07月31日 17:48  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  
  15.37: Which one of the folff b1gc9var-n uw2w.m:8 h:yme nkz2-lowing choices represents the base SI units of inductarm1wknz28vff92 - hu-wbmace y: .:gnnce?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.28: A shipment of pawu5g7ly6kbtj0xgu 3-e: 1jxg rts is labeled in units of “ohm∙second.” Which one of the following choices represents an equivawgej6jk537g-ub 1u lytxx :0glent unit?

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.42 A solenoid is constructed with N loops of wire tightly wrapped around an s+ g) g:x rr2wh0dbaq4iron-filled center. Due to budget cuts, the current that ordinarily ru:qsaw2+r0dgb x 4h )rgns through this solenoid is cut in half. As a result, the inductance of the solenoid is

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.46:In the circuit shown, the switch is moved to position A.Aj.* mncw+ 1nakz u6e(bfter a very long time, the switch is flipped fromec.ub *kjnw6(az +n m1 position A to position B, thereby opening the circuit. At the instant immediately following the flip of the switch, the DC voltmeter shown registers a voltage of magnitude:



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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.50: A series RL cip/iq; 4jw p,fxrcuit is shown. Which of the suggested changes in the circuit (labeled I, II, and III) would result in the initial voltage across the inductor (at the inw/ j ppq,fx4i;stant that the switch is closed) to be double what it is for the circuit shown?
I. Reduce the resistance in the circuit to R0/2.
II. Double the inductance in the circuit to 2L0.
III. Add a second identical inductor to the circuit in parallel with the first inductor.



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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.41: The circuit shown has been operating for a long time. The inio+9vb.vq 4l *m6w0p0 ur nzyhstant after the switch in the circuit labeled S is opened, wh0v wz4r.*+vp nuy oi6qbh 0ml9at is the voltage across the inductor $V_L$ and which labeled point (A or B) of the inductor is at a higher potential? Take $R_1\:=\:4.0\Omega$, $R_2\:=\:8.0\Omega$, and L = 2.5H.



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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.45: For the ideal RL circuv5ys d:)txbx6vygkold (7v86it shown, the resistance is R=10.0Ω, the inductance is L=5.0 H and the battery has voltage t65g7 y )b:y dvo(6v8l skdxvx$\xi_{bat}$ = 12 vlots. Some time after the switch S in the circuit is closed, the ammeter in the circuit reads 0.40 A. At what rate is energy being stored by the inductor at this instant (in Watts)?



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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.40: A student tunes a crystal radionrpfn9; 9d u,l7da)fo ca1o6 z set by means of a simple RLC circuit to receive a radio station broadcasting at 660 kHz. To receive a station broadcasting at 1320 kHz the capacitor in the RLC circuit could be changed. By what factor must the original capacitance be multiplied to tune in the RLC circuit t uf9 7)fp oa1nol9n;rd6cd, zao the new frequency?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.44: In an ideal LC circuit, what is the time differenca.zlh. 3tv9h me between all of the energy in the circuit being stored in9z.t mlh a.vh3 the inductor and all of the energy being stored in the capacitor?

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.49: A circuit consists of a resistor, capacitor(bj f*t-(w 0vnq e)xgz, and inductor connected in series to an AC source. As the source frequency increases, the current in the circuit decreases. Which statemfzn xt() *g-we j0b(vqent about the circuit is NOT correct as the source frequency increases?

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