Magnetism Question 67
Question: At a certain place, the horizontal component $ B _{0} $ and the vertical component $ V _{0} $ of the earth’s magnetic field are equal in magnitude. The total intensity at the place will be
[MP PMT 1999, 2003]
Options:
A) $ B _{0} $
B) $ B _{0}^{2} $
C) $ 2B _{0} $
D) $ \sqrt{2}B _{0} $
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Answer:
Correct Answer: D
Solution:
$ B _{0}=V _{0} $ also total intensity $ B=\sqrt{B _{0}^{2}+V _{0}^{2}} $
$ \Rightarrow B=\sqrt{2}B _{0} $