The Murthy text. Page 412. The vector doesn't point to the field; it points to the door.
Let’s be blunt: For GATE/ESE, you will need additional conceptual clarity from Standard texts (like R.K. Shevgaonkar or David Cheng). For research in antennas or photonics, this book is just the starting point. The Murthy text
: Dedicated sections on radiation, antenna basics, and antenna arrays. Where to Access the Content here is a quick comparison:
The first major section of the book deals with time-invariant charges and fields. The Murthy text
To understand where Murthy’s book fits, here is a quick comparison: