Evaluate the following twiddle factor: W84

Compute the value of the following twiddle factor:   W4 16

Verify the following property of the twiddle factor:

Q4.      The equation relating the current in a circuit with time is i=282.1 sin377t, where the current is measured in amperes and the time in seconds. Find the values of: The r.m.s current  The frequency  The instantenous value of the current when t=2.0ms

4.10 A dc-dc converter is connected to a 100 V d.c. source to supply an inductive load having 40 mH in series with 5 2 resistance. FWD is placed across the load. Load current varies between two limits of 10 A and 12 A. (a) Find the time ratio (duty cycle) and the frequency of the chopper. (b) Find the equivalent Thevenin resistance across the source and determine the average source current.

A sinusoidal voltage has a value of 100 volts at 2.5 milliseconds and takes 20 milliseconds to complete one cycle. Then find the maximum cost and the time to reach it for the first time.