Humming , Electrical Engineering

Assignment Help:
I am getting humming noice in speaker when I connect to laptop on ac

when I put it on dc (battery) it''s dispear .

Please help

Related Discussions:- Humming

Design of matching networks for amplifiers, Design a low noise amplifier us...

Design a low noise amplifier using an Infineon RF transistor BFP640. The amplifier is to be used to amplify the L2 GPS signal and so the centre frequency is 1227MHz and bandwidth 4

Matlab simulation, Simulate and compare BER of QPSK system and 4-QAM system...

Simulate and compare BER of QPSK system and 4-QAM system without grey coding Eb/No=0.2.4.6.8.10

What are operations performed on data in 8085, What are operations performe...

What are operations performed on data in 8085 The various operations performed are Store 8-bit data Perform arithmetic and logical operations Test for conditio

Show television waveform, Q. Show television waveform? The television w...

Q. Show television waveform? The television waveform representing one scan is illustrated in Figure. A blanking pulse with a duration of 0.18 of the horizontal - sweep period T

Add register and carry with accumulator, Add Register and Carry with Accumu...

Add Register and Carry with Accumulator The contents  of register R and the  carry flag are added to the  contents of the  accumulator  and result of  addition  is also  sto

Determine the overall power factor, A three-phase, wye-connected, cylindric...

A three-phase, wye-connected, cylindrical-rotor, synchronous motor, with negligible armature resistance and a synchronous reactance of 1.27 per phase, is connected in parallel wit

Demagnetizing and cross magnetizing effects , Q.   What do you understand b...

Q.   What do you understand by demagnetizing and cross magnetizing effects of armature reaction in a d.c. machine. Derive the expression for calculation of demagnetizing and cross

Classify the materials based on the energy bands, Classify the materials ba...

Classify the materials based on the energy bands and explain them. Classification of materials based on energy bands: With reference to various band structures demonstrate

Calculate arithmetic mean, a) Get the best linear relationship in accordanc...

a) Get the best linear relationship in accordance with least square analysis for the following data:- X 0.9 2.3 3.3 4.5 5.7 6.7 Y 1.1 1.6 2.6 3.2 4.0 5.0 b) The table belo

TRANSFORMER, what are the characteristics of transformer?

what are the characteristics of transformer?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd