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Electronics and Communication Microwave Communication Difficulty: Medium

The minimum step-size required for a Delta-Modulator operating at 32 k samples/sec to signal (here u(t) is the unit-step function) x(t) = 125t(u(t) - u(t - 1)) + (250 - 125t)(u(t - 1) - u(t - 2)) so that slope-overload is avoided, would be OPAMP circuit given below is a . . . . . . . . A bar of certain material having rectangular cross section is one metre in length and has a cross section of 0.0001 square metres. The value of its longitudinal resistance is 100 ohms. The value of its resistivity would be: Which of the following is a valid integer constant? Consider a system whose input x and output y are related by the equation $$y\left( t \right) = \int\limits_{ - \infty }^\infty {x\left( {t - \tau } \right)h\left( {2\tau } \right)d\tau } $$ where h(t) is shown in the graph Which of the following four properties are possessed by the system? BIBO: Bounded input gives a bounded output Causal : The system is causal LP : The system is low pass LTI : The system is linear and time-invariant