It is done in order to protect the transistor from the heavy currents flowing (resistor reduces current flow) into its terminals.
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if a transistor resistor is connected to the emmiter .
A transistor acts like a resistor when Gate is connected to Source.
transistor
why we use base resistor in emitter bias
A: TTL-DTL-RTL are family of gates called by the name. Example TTL means Tran. trans. logic. It refers to the inputs for these gates as the type. T= Transistor D=Diode R=Resistor While they do perform the same function their characteristics in performance varies greatly.