Electromagnetics - Basics of Electromagnetics | 22 August | 4 PM

TL;DR

Basics of electromagnetics are discussed, including calculations, equations, and coordinate systems.

Transcript

even i am bhojas faculty of electromagnetics today we are going to discuss about basics of electromagnetics before we go further i would like to introduce you about what ekeda is basically this ekito platforms provides you various kind of various types of study materials lectures and live doubt sessions so you can subscribe to the ekeeda channel an... Read More

Key Insights

• 🫒 Ekeeda provides study materials, lectures, and live doubt sessions for learning electromagnetics.
• 👮 Coulomb's law is used to calculate the force between charges based on their values and the distance between them.
• ⌛ Capacitors charged with constant currents and resistors exhibit changing voltage and current over time.
• ❓ In cylindrical coordinate systems, coordinate transformations and vector transformations are utilized.

Questions & Answers

Q: How do I calculate the force between two charges separated by a distance of 1 mm?

To calculate the force, you can use Coulomb's law, which states that the force between two charges (q1 and q2) is given by the equation F = k(q1*q2)/r^2, where k is the Coulomb constant and r is the distance between the charges.

Q: What is the voltage across a capacitor charged with a constant current and a resistance in series?

When a capacitor is charged with a constant current and a resistance in series, the voltage across the capacitor will rise over time. The current will decrease, and the voltage across the capacitor can be calculated using the equation V = (1/C)∫(idt), where C is the capacitance, i is the current, and t is time.

Q: How is the force between charges affected by the distance and the charge values?

The force between charges is inversely proportional to the square of the distance between them. It is also directly proportional to the product of the charges. As the distance increases, the force decreases, and as the charges increase, the force increases.

Q: What is the difference between rotational and irrotational vectors?

A rotational vector has a non-zero curl, which means that its direction changes along a closed loop. An irrotational vector has a zero curl and does not change direction along a closed loop. In other words, a rotational vector has circulating flow, while an irrotational vector has no circulating flow.

Summary & Key Takeaways

• The content discusses the basics of electromagnetics, including explanations of Ekeeda and subscription options.

• Calculation examples for force between charges and voltage across a capacitor are provided.

• The concepts of inductors, coordinate systems, and vector transformations are explained.

• Laplace equations and the breakdown of vectors in different coordinate systems are explored.