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Unformatted text preview: ସ ܪ ଷ ܩ ܩ ଶ ܩ ଷ ܩ ଷ Y(s) R(s) 20 3 1/s 5 1/s U(s) ݔ ଶ ሺݏሻ ݔ ଵ ሺݏሻ 4. Use the Routh –Hurwitz criterion to determine the number of roots that have positive real parts. a) ݏ ଶ 2ݏ ଶ 5ݏ 24 ൌ 0 b) ݏ ଷ 2ݏ ଶ 4ݏ 8 ൌ 0 5. Find the transfer functions Y(s)/ ܷ ଵ (s) and Y(s)/ ܷ ଶ (s) fort he block diagram shown. [Hint:take the other input as zero to find the Transfer Function] 3/(s+1) 2 4/(10s + 1) 6 ܷ ଵ ሺݏሻ ܷ ଶ ሺݏሻ ܯሺݏሻ ܻሺݏሻ...
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- Spring '09