Question:
In a certain place, the vertical component of earth?? magnetic field is 0.5 oersted and dip angle is $60^?$. The earth?? magnetic field at that place is
In a certain place, the vertical component of earth?? magnetic field is 0.5 oersted and dip angle is $60^?$. The earth?? magnetic field at that place is
Updated On: Jun 23, 2023
- $1$ oersted
- $\frac{\sqrt{3}}{2}$ oersted
- $2$ oersted
- $\frac{1}{\sqrt{3}}$ oersted
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The Correct Option is D
Solution and Explanation
Here,
Vertical component of earth?? magnetic field,
$V_{E}=0.5$ oersted
Angle of dip, $\delta=60^{?}$
Earth?? magnetic field, $B_{E}=?$
As $sin\,\delta=\frac{V_{E}}{B_{E}}$
$\therefore B_{E}=\frac{V_{E}}{sin\,\delta }=\frac{0.5}{sin\,60^{?}}=\frac{0.5}{\left(\frac{\sqrt{3}}{2}\right)}=\frac{1}{\sqrt{3}}$ oersted
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Concepts Used:
Magnetism & Matter
Magnets are used in many devices like electric bells, telephones, radio, loudspeakers, motors, fans, screwdrivers, lifting heavy iron loads, super-fast trains, especially in foreign countries, refrigerators, etc.
Magnetite is the world’s first magnet. This is also called a natural magnet. Though magnets occur naturally, we can also impart magnetic properties to a substance. It would be an artificial magnet in that case.
Read More: Magnetism and Matter
Some of the properties of the magnetic field lines are:
- The lines and continuous and outside the magnet, the field lines originate from the North pole and terminate at the South pole
- They form closed loops traversing inside the magnet.
- But here the lines seem to originate from the South pole and terminate at the North pole to form closed loops.
- More number of close lines indicate a stronger magnetic field
- The lines do not intersect each other
- The tangent drawn at the field line gives the direction of the field at that point.