Related InterviewSolutions

• The forbidden energy gap in germanium is 0.7 eV. The wavelength whose absorption is done by germanium is :(a) 35000 Å(b) 17700 Å(c) 25000 Å(d) 51600 Å
• In insulators the forbidden energy gap between valence band and conduction band is of ………. value :(a) 1 eV(b) 0.6 eV(c) 0.1 eV(d) 0.01 eV
• What will be the value of a for that transistor for which β = 19?
• What is the direction of diffusion current in junction diode?
• The diode shown in the figure is in which biasing?
• Write down the relation between a and p (current amplification factor) of the transistor.
• The current amplification is 0.99 for any transistor in common-base configuration. Calculate the change in collector current when there is 5.0 milliampere change in emitter current. What will be the change in base current?
• For any ‘AND GATE’ the three inputs are A, B and C then the output Y will be;(a )Y = A . B + C(b) Y = A + B + C(c ) Y = A + B . C(d) Y = A . B . C
• If a NPN transistor is used as an amplifier then;(a) Electrons move from base to collector(b) Holes move from emitter to base(c) Holes move from base to emitter(d) Electrons move from emitter to base
• In a transistor why is the base made thin in comparison to the emitter and collector?