Why we are using 250 ohm as a load for transmitter?


#1

reason for using 250 ohm as load in transmitter …


#2

I= V/R
R=250 OHM
V=1 TO 5 VOLT
I= 1/250
I =.004A = 4 mA

I=5/250
I= .020 A= 20mA
so current will very 4 to 20 mili ampare