Radiation resistance of a small dipole current element of length l at a frequency of 3 GHz is 3 ohms

Q. Radiation resistance of a small dipole current element of length l at a frequency of 3 GHz is 3 ohms. If the length is changed by 1%, then the percentage change in the radiation resistance, rounded off to two decimal places, is _______________%.

Ans: 1.99 – 2.01

Solution: