English

Choose the correct option. The horizontal and vertical component of magnetic field of Earth are same at someplace on the surface of Earth. The magnetic dip angle at this place will be

Advertisements
Advertisements

Question

Choose the correct option.

The horizontal and vertical component of magnetic field of Earth are same at someplace on the surface of Earth. The magnetic dip angle at this place will be

Options

  • 30°

  • 45°

  • 90°

MCQ
Advertisements

Solution

45°

Explanation:

`"B"_"v"/"B"_"H"` = tanΦ

∴ tanΦ = 1 ⇒ Φ = 45°

shaalaa.com
  Is there an error in this question or solution?
Chapter 12: Magnetism - Exercises [Page 227]

APPEARS IN

Balbharati Physics [English] Standard 11 Maharashtra State Board
Chapter 12 Magnetism
Exercises | Q 1. (iii) | Page 227

Video TutorialsVIEW ALL [2]

RELATED QUESTIONS

Name three elements of the earth's magnetic field which help in defining earth's magnetic field completely.


A compass needle, free to turn in a vertical plane orients itself with its axis vertical at a certain place on the earth. Find out the values of (i) horizontal component of earth's magnetic field and (ii) angle of dip at the place.


Can the dip at a place be (a) zero (b) 90°?


The reduction factor K of a tangent galvanometer is written on the instrument. The manual says that the current is obtained by multiplying this factor to tan θ. The procedure works well at Bhuwaneshwar. Will the procedure work if the instrument is taken to Nepal? If there is same error, can it be corrected by correcting the manual or the instrument will have to be taken back to the factory?


A compass needle which is allowed to move in a horizontal plane is taken to a geomagnetic pole. It ______.


The horizontal component of the earth's magnetic field at a place is `1/sqrt(3)` time the vertical component. Determine the angle of dip at that place.


A charge particle after being accelerated through a potential difference ‘V’ enters in a uniform magnetic field and moves in a circle of radius r. If V is doubled, the radius of the circle will become ______.


Answer the following question in detail.

How does the magnetic declination vary with latitude? Where is it minimum?


What happens to the angle of dip as we move towards magnetic pole from magnetic equator?


Solve the following problem.

A magnet makes an angle of 45° with the horizontal in a plane making an angle of 30° with the magnetic meridian. Find the true value of the dip angle at the place.


Answer the following question regarding earth’s magnetism:

If you made a map of magnetic field lines at Melbourne in Australia, would the lines seem to go into the ground or come out of the ground?


Answer the following question regarding earth’s magnetism:

Geologists claim that besides the main magnetic N-S poles, there are several local poles on the earth’s surface oriented in different directions. How is such a thing possible at all?


At a certain location in Africa, a compass points 12° 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° 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.


The earth’s magnetic field always has a vertical component except at the ______.

Which of the following is responsible for the earth’s magnetic field?


Which of the following independent quantities is not used to specify the earth’s magnetic field?


The horizontal component of earth’s magnetic field at a place is `sqrt3` times the vertical component. The angle of dip at that place is ______.


Assertion(A): A magnetic needle free to rotate in a vertical plane, orients itself (with its axis) vertical at the poles of the earth.

Reason (R): At the poles of the earth the horizontal component of earth’s magnetic field will be zero.

Select the most appropriate answer from the options given below:


A satellite S is moving in an elliptical orbit around the earth. The mass of the satellite is very small compared to the mass of the earth. Then,


A 10-meter wire is kept in east-west direction. It is falling down with a speed of 5.0 meter/second, perpendicular to the horizontal component of earth's magnetic field of 0.30 × 10−4 weber/meter2. The momentary potential difference induced between the ends of the wire will be:


The vertical component of earth's magnetic field is zero at a place where angle of dip is


At a place of latitude 5°, angle of dip is nearly


At a certain place horizontal component is `sqrt(3^2)` time the vertical component. The angle of dip at this place.


The earth's magnetic field at a certain place has a horizontal component 0.3 gauss and the total strength 0.5 gauss. The angle of dip is ______.


Let the magnetic field on earth be modelled by that of a point magnetic dipole at the centre of earth. The angle of dip at a point on the geographical equator ______.

  1. is always zero.
  2. can be zero at specific points.
  3. can be positive or negative.
  4. is bounded.

Consider the plane S formed by the dipole axis and the axis of earth. Let P be point on the magnetic equator and in S. Let Q be the point of intersection of the geographical and magnetic equators. Obtain the declination and dip angles at P and Q.


The earth's magnetic field lines resemble that of a dipole at the centre of the earth. If the magnetic moment of this dipole is close to 8 × 1022 Am2, the value of earth's magnetic field near the equator is close to ______. (radius of the earth = 6.4 × 106 m)


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×