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Electronics 1. In the hybrid parameter model of a transistor reverse transfer voltage ratio and forward transfer current ratio are respectively given by:(a) h11 and h21 (b) h12 and h11(c) h21 and h11 (d) None of these2. A Signal x(t) has the Fourier transform X(ω) = { 1 for | ω | < }W . Its first zero-crossing in time domain occurs at: O otherwise (a) 1/pW (b) W ( c) p/ W (d) None of these
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