What are Drift and Diffusion currents?

Answer Posted / aman

drift current - when electric field is applied the electrons move to the positive terminal of the voltage, flow of electron constitute an electric current called drift current.

diffusion current - the concentration of material is not uniformly distributed hence the concentration of charge carriers tend to distribute themselves through the crystal. this movement continues until all the carriers are uniformly distributed, this current is called diffusion current.

Is This Answer Correct ?    8 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the difference between dcs & plc & scada?

637


What are the advantages of bjt?

549


What are the advantages of active filters?

656


Why is space region called the depletion region?

601


What are semiconductor devices?

591






A PLL maintains lock by comparing A The phase of two signals B The frequency of two signals C The amplitude of two signals D None of these

1796


What is channel coding?

1440


What are power diodes?

795


What are active & passive elements in BTS?

1684


what is an integrator?

652


What is the simplest way to maintain the "power factor" of any system? if you have many methods specify all!

1380


Why 440 volts instead of 660 volts in 3 phases of supply system?

547


WHY IGBT IS CALLED MINORITY CARRIER DEVICE?

2203


Impedence of a parallel resonant circuit at resonance is ?

749


In automation process timer based automation is best or not? any other possible methods are available

1575