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1. (a) Consider a sinusoidal signal m(t) = A cos(2 Π fmt) applied to a delta modulator with step size . Determine the range of the step size so that slope overload will be avoided.
(b) Assume that delta modulation (DM) system is designed to operate at 3 times the Nyquist rate of the input signal. The quantizing step size is 250 mV. Determine the maximum amplitude of a 1-kHz input sinusoid for which the delta modulator does not show slope overload.
Q. A current of 65 A is measured with an analog ammeter having a probable error of ±0.5% of full scale of 100 A. Find the maximum probable percentage error in the measurement.
The devices in power system shown in Figure 2 have the following ratings: G1 : 100 MVA, 13.8 kV grounded Y, X” = 0.15 pu, X2 = 0.015 pu Xo = 0.05 pu G2 : 50 MVA, 20.0 kV grounded
Earthing : Any electrical appliance with a metal casing or with metal parts, likely to be touched by an operator is potentially dangerous. The danger is that an internal or extern
A JFET for which V A = 80 V, V P = 4 V, and I DSS = 10 mA has a quiescent drain current of 3 mA when used as a common-source amplifier for which R D = R SS = 1k and R L = 3k
Current Source Inverter (CSI) Current source inverter has constant input but it can be adjusted. In CSI the amplitude of output current is independent of load. The lo
When recording infrasound waves or microwaves how do they vary from one another? Ans) By microwaves, do you mean "radio signals", like in a microwave oven? These have nothing t
RIM Read Interrupt Mask Instruction This instruction is used to read the status of interrupts and read the serial input data. The status byte is loaded into the accu
Q. Explain function of application layer? Layers of OSI model are as follows: (1) The Physical Layer: This defines an interface in terms of connections, voltage levels and
bias compensation techniques for ac and dc characteristics
Q. A two-pole rotating machine with a singly excited magnetic field system as its stator and a rotor (that carries no coil) has a stator-coil inductance that can be approximated by
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