If you cannot afford the book:
| Solution | Cost | How it works | |----------|------|---------------| | College library | Free | Borrow overnight or in-library reading. | | Friends’ shared copy | Free | Rotate chapters with a batchmate. | | AKTU / university e-books section | Free (with login) | Many universities upload scanned chapters on their e-learning portals. | | NPTEL video + notes | Free | Combine video lectures (Prof. L. Umanand, IISc) with Hussain’s limited preview on Google Books. | | WhatsApp groups / Telegram channels (legal academic groups) | Free but risky | Some groups share only sample chapters or first 50 pages legally; avoid full PDF request. | If you cannot afford the book: | Solution
Before listing sources, be aware that websites offering free PDFs of copyrighted books often pose risks: Before listing sources, be aware that websites offering
If you type this exact phrase into Google, Bing, or any search engine, you will find dozens of websites claiming to offer the free PDF. Examples include: Before listing sources
Authored by Ashfaq Hussain (former Professor at Aligarh Muslim University and author of multiple standard texts like "Network Theory" and "Electronic Devices and Circuits"), this book simplifies complex topics with: