Complex Numbers Ex 1.5 Q18–Q22 | Impedance & Cryptography | 1st Year Math 2025 PTB | Maths Aura

📘 Welcome to Maths Aura – Less Complexity, More Clarity! 🌟 The Aura of Easy Mathematics! In this lecture, we cover Exercise 1.5 (Q18 to Q22) from Chapter 1: Complex Numbers – based on the New Syllabus 2025 by Punjab Textbook Board (PTB). This session features both real-world math and modern concepts like: - Impedance in AC Circuits using complex numbers - Ohm’s Law in Polar Form (Z = R + iX) - Cryptography using Complex Encryption & Decryption - Word-based problems like CODE, QUIZ, CLASS with encryption keys 🎯 Ideal for FSc and ICS students preparing for 1st Year Board Exams. 🧠 Questions Solved: Q18 – Current in Polar Form Q19 – Current in Rectangular and Polar Form Q20 – Encrypt & Decrypt "CODE" Q21 – Encrypt & Decrypt "QUIZ" Q22 – Encrypt & Decrypt "CLASS" 🔔 Don’t forget to LIKE, SHARE, and SUBSCRIBE for more high-quality math lectures! 📌 Subscribe to the channel: https://www.youtube.com/@MathsAura-j1f 📚 Playlist – 1st Year Math 2025 Full Course: 👉 https://www.youtube.com/watch?v=YVhpAi_wNo4&list=PLH5fvgtrabBar30YIbBe6S7hocZkZW9l5&pp=gAQB 📞 Contact Sir Azhar Riaz Hunjra: 0310-4485950 🎓 Lecturer | KIPS College Sheikhupura | YouTuber | Educator ⏱️ Timestamps: 00:00 – Introduction (Impedance + Cryptography Overview) 01:48 – Real World Application of AC Circuit Impedance 05:48 – Q18: Polar Form Current Solution 11:00 – Q19: Rectangular & Polar Form Current 15:27 – Intro to Cryptography 20:58 – Q20: Encrypt + Decrypt "CODE" 25:52 – Q21: Encrypt + Decrypt "QUIZ" 30:31 – Q22: Encrypt + Decrypt "CLASS" 🔖 Hashtags: #MathsAura #newsyllabus2025 #LessComplexityMoreClarity #TheAuraOfEasyMathematics #ComplexNumbers #Exercise1_5 #Impedance #OhmsLaw #Cryptography #Encryption #Decryption #1stYearMath #FScMath2025 #ICS2025 #Chapter1Math #PTBMath2025