Interview Questions

1)      Difference between Passive and Active components.

i)    Those devices or components which required external source to their operation is called Active Components. Those devices or components which do not required external source to their operation is called Passive Components.

ii)  Those devices or components which produce energy in the form of Voltage or Current are called as Active Components. Those devices or components which store or maintain Energy in the form of Voltage or Current are known as Passive Components.

iii)    Active Components: Energy Donor.

Passive Components: Energy Acceptor.

iv)    Passive Components are in linear and Active Components are in non linear category.

2)      Difference between BJT and MOSFET

i)        BJT is a Bipolar Junction Transistor, while MOSFET is a Metal Oxide Semiconductor Field-Effect Transistor.

ii)   A BJT has an emitter, collector and base, while a MOSFET has a gate, source and drain.

iii)   BJTs are preferred for low current applications, while MOSFETs are for high power functions.

iv) The operation of MOSFET depends on the voltage at the oxide-insulated gate electrode, while the operation of BJT is dependent on the current at the base.