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List of top Physics Questions on Semiconductor electronics: materials, devices and simple circuits asked in BCECE
For detecting intensity of light we use
BCECE - 2010
BCECE
Physics
Semiconductor electronics: materials, devices and simple circuits
A light emitting diode (LED) has a voltage drop of
$2\, V$
across it and passes a current of
$10\, mA$
. When it operates with a
$6\, V$
battery through a limiting resistor
$R$
, the value of
$R$
is
BCECE - 2008
BCECE
Physics
Semiconductor electronics: materials, devices and simple circuits
The minimum potential difference between the base and emitter required to switch a silicon transistor ON is approximately
BCECE - 2008
BCECE
Physics
Semiconductor electronics: materials, devices and simple circuits
The current gain of a transistor in common emitter mode is
$49 .$
The change in collector current and emitter current corresponding to the change in base current by
$5.0\, \mu A$
are :
BCECE - 2003
BCECE
Physics
Semiconductor electronics: materials, devices and simple circuits