BE Electronics Engineering

The time constant of an R-C circuit is defined as the time during which capacitor charging voltage actually rise to _________ percent of its maximum value;-

Latching  current is  related to turn off process  of the  device ;-

Latching  current   is related to  conduction  process of   device ;-

When an electron breaks a covalent bond and moves away:-

The proton is a stable charge in the nucleus that is not free to move:-

In the NPN transistor , collector current is hole charges supplied by the emitter:-

JFET has higher input impedance the MOSFET:-

Rectifier  is  a  device used  to  ;-

A capacitor stores 0.24 Coulombs at 10 volts. Its capacitance is:-

Schemes  using  polarizing  technique need  birefringent  fiber ;-

The Internal barrier potential at a PN junction for silicon is approximately 9 V;-

Energy stored by a coil is doubled when its current is increased by percent:-

Piezo electric  transducer are ;-

The  distribution function  of  random  variable  is  ;-

The ampere-hour efficiency of a lead acid cell is normally between:-

Free electrons exist in:-

A VTVM  is  never  used  to measure ;-

If too large current pass through the diode:-

Diamond  is  an example of :-

The ripple  factor  of  a  power supply  is :-

Resistivity  is a property of a semi conductor that depends upon:-

In CRO  we connect grid to which   potential;-

In an  induction motor  ,  no  load the  slip  is generally :-

In a transistor leakage current mainly depends on;-

Fidelity  represents  reproduction of  signal ;-