11. At a certain location in Africa, a compass points 12 \degree west of the geographic north. The north tip of the magnetic needle of a dip circle placed in the plane of magnetic meridian points 60 \degree above the horizontal. The horizontal component of the earth’s field is measured to be 0.16 G. Specify the direction and magnitude of the earth’s field at the location.

Answers (1)

Given,

The horizontal component of earth’s magnetic field, BH = 0.16 G

The angle of declination, \theta = 12^{\circ}

The angle of dip, \delta = 60^{\circ}

We know, B_{H} = B cos\delta, where B is Earth's magnetic field

B = B_{H}/cos\delta = 0.16/(cos60 \degree) = 0.32 G

Earth’s magnetic field is 0.32 G in magnitude lying in the vertical plane, 12^{\circ} west of the geographic meridian and 60^{\circ} above the horizontal.

Preparation Products

Knockout NEET May 2021 (One Month)

An exhaustive E-learning program for the complete preparation of NEET..

₹ 14000/- ₹ 6999/-
Buy Now
Foundation 2021 Class 10th Maths

Master Maths with "Foundation course for class 10th" -AI Enabled Personalized Coaching -200+ Video lectures -Chapter-wise tests.

₹ 999/- ₹ 499/-
Buy Now
Foundation 2021 Class 9th Maths

Master Maths with "Foundation course for class 9th" -AI Enabled Personalized Coaching -200+ Video lectures -Chapter-wise tests.

₹ 999/- ₹ 499/-
Buy Now
Knockout JEE Main April 2021 (One Month)

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 14000/- ₹ 6999/-
Buy Now
Knockout NEET May 2021

An exhaustive E-learning program for the complete preparation of NEET..

₹ 22999/- ₹ 14999/-
Buy Now
Boost your Preparation for JEE Main with our Foundation Course
 
Exams
Articles
Questions