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Electronics and Communication Information Theory And Coding Difficulty: Medium

The crystal structure of some Ceramic materials may be thought of being composed of electrically charged Cations and Anions, instead of Atoms, and as such The V-I characteristics of an element is shown in the below figure. The element is Which of the following is a 4-bit architecture? Given that $$L\left[ {f\left( t \right)} \right] = {{s + 2} \over {{s^2} + 1}},L\left[ {g\left( t \right)} \right] = {{{s^2} + 1} \over {\left( {s + 3} \right)\left( {s + 2} \right)}},$$ $$h\left( t \right) = \int\limits_0^t {f\left( \tau \right)} g\left( {t - \tau } \right)d\tau $$ L[h(t)] is An inductive pick-up is used to measure speed of a shaft on which a 120 tooth-wheel is attached. The number of pulses produced per second is 3000. What is the RPM of the shaft?