Supposed that you are asked design a switching circuit to turn
on and off the LED as shown below. The V-I characteristics when
the LED is on is VLED,on = 3V & ILED,on = 300 mA. The transistor
is a 2N2222; from its datasheet (below) assume that its DC
current gain hFE = 100 (min), VCE(sat) = 1 V & VBE(sat) = 2 V.
Note that IC = hFE IB when the transistor is turned on. Based on
the diagram and the info below, what should be the value of the
Current Limiting Resistor RC and the Bias Resistor RB? uploaded
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