Capacitance of Two Parallel Wires<br />Question: Estimate the capacitance per unit length of two very long straight parallel wires, each of radius R, having uniform charge densities +λ and -λ, and separated by a distance d which is large compared to R (d≫R), as shown in Fig. <br />Approach: We have derived using Gauss’s law that the electric field outside a long wire is directed radially outward and has magnitude E ⃗=2kλ/r r ̂.<br /><br /><br />Follow us on Twitter: <a href="https://twitter.com/institutembw" target="_blank" rel="nofollow">https://twitter.com/institutembw</a><br />Follow us on LinkedIn: <a href="https://www.linkedin.com/company/institutembw/" target="_blank" rel="nofollow">https://www.linkedin.com/company/institutembw/</a><br />Follow us on Facebook: <a href="https://www.facebook.com/institutembw" target="_blank" rel="nofollow">https://www.facebook.com/institutembw</a><br />Follow us on Instagram: <a href="https://www.instagram.com/institutembw/" target="_blank" rel="nofollow">https://www.instagram.com/institutembw/</a><br />Subscribe our YouTube Channel: <a href="https://www.youtube.com/c/institutembw" target="_blank" rel="nofollow">https://www.youtube.com/c/institutembw</a><br /><br />#irodov #capacitance #parallelwires #institutembw #mbwinstitute<br />...<br /><a href="https://www.youtube.com/watch?v=XCiybDA68WU" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=XCiybDA68WU</a>