The Biot-Savart law for calculating magnetic fields due to a current is presented in my freshman physics book as a general way of getting B from I. But there's no time delay implied by the integral. Can I just manually throw the time delay into the integral? For instance, to numerically calculate the magnetic field at some point due to a time harmonic current in, say, an antenna, can I just:(adsbygoogle = window.adsbygoogle || []).push({});

1. Break the antenna up into known discrete current elements,

2. Calculate the delay between each element and the point of interest,

3. Use Biot-Savart to find B due to each element, and multiply each term by it's associated phase shift (exp(-i*w*delay)).

4. Add em up.

It may not be computationally efficient but it would be simple. But would it give the right answer?

**Physics Forums - The Fusion of Science and Community**

# Does Biot-Savart law apply at high frequencies?

Know someone interested in this topic? Share a link to this question via email,
Google+,
Twitter, or
Facebook

Have something to add?

- Similar discussions for: Does Biot-Savart law apply at high frequencies?

Loading...

**Physics Forums - The Fusion of Science and Community**