0 votes
131 views
in Chapter 4 Moving Charges and Magnetism by (98.9k points)
recategorized by
A horizontal overhead power line carries a current of 90 A in east to west direction. What is the magnitude and direction of the magnetic field due to the current 1.5 m below the line?

1 Answer

0 votes
by (98.9k points)
edited

I = 90 A, r = 1.5 m
B = \(\frac{\mu_{0} I}{2 \pi r}\)
= \(\frac{4 \pi \times 10^{-7} \times 90}{2 \pi \times 1.5}\)
= 1.2 x 10-5 T (South)

Related questions

Doubtly is an online community for engineering students, offering:

  • Free viva questions PDFs
  • Previous year question papers (PYQs)
  • Academic doubt solutions
  • Expert-guided solutions

Get the pro version for free by logging in!

5.7k questions

5.1k answers

108 comments

554 users

...