作者iamhappyQ ()
看板Electronics
标题[问题] 普物里的电学题目
时间Tue Oct 17 08:03:51 2006
做普物考古题碰到的题目
1. A series RCL circuit has a capacitance of 1.2 mF and an inductance of
2.0 mH. What is the resonance frequency of the circuit?
(a)325Hz (b) 1250Hz(c) 2580Hz (d) 3250Hz
f = 1 / (2π * 根号(LC)) 公式好像是这样
不过我代值进去後 答案竟然都不一样XD
2. A series circuit with an inductance of 15 mH, a capacitance of 35 uF and
a resistance of 5 ohm contain a sinusoidal source of emf with a frequency
of 500 Hz. The frequency with which the charge on the capactor oscillates
is (a) less than 500 Hz (b) 500 Hz (c) between 500 Hz and 1.4kHz
(d)greater than 1.4 kHz
请会的大大不吝指导
感激不尽 Orz
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