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Electronics and Communication Analog Electronics Difficulty: Medium

The Fourier series representation of an impulse train denoted by $$s\left( t \right) = \sum\limits_{n = - \infty }^\infty {\delta \left( {t - n{T_0}} \right)} \,{\rm{is}}\,{\rm{given}}\,{\rm{by}}$$ For the gate in the given figure the output will be . . . . . . . . Consider the following statements: 1. Voltage across a capacitor cannot change abruptly. 2. Voltage across an inductor cannot change abruptly. 3. Current through a capacitor cannot change abruptly. 4. Current through an inductor cannot change abruptly Which of these statements are correct? In a ratio detector Which of the following standard of cordless telephone system is also approved as a 3G standard?