Question

The input impedance of a half wave dipole antenna is in the form Zin = RA + jXA. State the values of RA and XA. How can the Zin be reduced to 73 Ω only?

Answer 1

Answer:

Let hundred digit =x

ten digit =x−1

unit digit =x−1

First form of Number =100×x+100(x−1)+x+1

=111x−9

Second form of Number =(x+1)100+x×10+x−1

=111x+99

third form of number =(x−1)100+(x+1)10+x

=111x−90

So 111x−9+111x+99+111x−90=2664

111x=2664

x=8

So the number 8×100+7×10+9

=879