Magnetism Question 62
Question: At a place, the magnitudes of the horizontal component and total intensity of the magnetic field of the earth are 0.3 and 0.6 Oersted respectively. The value of the angle of dip at this place will be
[MP PMT 1994]
Options:
A) 60°
B) 45°
C) 30°
D) 0°
Show Answer
Answer:
Correct Answer: A
Solution:
$ B _{H}=0.3\ Oersted,\ \ I=0.6\ Oersted $ We have $ B _{H}=I\cos \varphi \Rightarrow \cos \varphi =\frac{B _{H}}{I}=\frac{0.3}{0.6}=\frac{1}{2} $
$ \
Therefore \ \varphi =60^{o} $
BETA
