Electrical Engineering Answers

Question 4:

A modulating signal m(t) = 0.8cos(200π t) is used to modulate a carrier signal givenby:c(t)=10cos(2π fct) fc >>100Hz

(a) Find the peak power of DSB and conventional AM signals

(b) Obtain the average power for DSB and conventional AM signals

Case 1 study:

As we all know the main purpose of a resistor in every circuit is to limit the current which is passing through on a certain load/component. And we also know that Voltage is directly Proportional to Current, as the voltage rise the current rise also and vice versa.

Question:

If we want to achieve a certain value of a current why don't we just lessen the voltage input and remove that resistor to save energy and the environment at the same time? Do you agree? State your thoughts regarding with this. And if your Disagree. State your thoughts also on why you disagree.

As we all know the main purpose of a resistor in every circuit is to limit the current which is passing through on a certain load/component. And we also know that Voltage is directly Proportional to Current, as the voltage rise the current rise also and vice versa.

Question:

If we want to achieve a certain value of a current why don't we just lessen the voltage input and remove that resistor to save energy and the environment at the same time? Do you agree? State your thoughts regarding with this. And if your Disagree. State your thoughts also on why you disagree.

A 6 pole generator has a lap wound armature with 40 slots with 20 conducters per slot. The Flux per pole is 25mWb. The terminal voltage is 288v and the voltage regulation of the generator is 4%. Determine the speed of the generator

A 6-pole generator has a lap-wound armature with 40 slots with 20 conductors per slot.The flux per pole is 25mWb.The terminal voltage is 288v and the voltage regulation of the generator is 4%. Determine the speed of the generator.

A 6-pole generator has a lap-wound armature with 40 slots with 20 conductors per slot.The flux per pole is 25mWb.The terminal voltage is 288v and the voltage regulation of the generator is 4%. Determine the speed of the generator.

Draw a common-emitter amplifier circuit to amplify an input current signal of 2mV amplitude and 2kHz frequency.Draw input and output waveform(no need to be scaled).Given, beta value is 100

Where is the Fermi Level located with respect to intrinsic level a complete

numerical answer is required with complete understanding?

 A transformer with 40 turns on the high voltage winding is used to step down the voltage  from 240V to 120V. Find the number of turns in the low voltage winding.

Provide the proof of rotating magnetic field.