Which of the following statements is correct? options: a) The declination of the

Question

Which of the following statements is correct? options: a) The declination of the Earth's magnetic field is the angle between a vertical plane and the direction of the field. b) Inclination and declination mean the same thing. c) The inclination of the Earth's magnetic field is the angle between a horizontal plane and the direction of the field. d) The inclination of the Earth's magnetic field is the angle between the horizontal component of the field direction and the direction to geographic north. e) The declination of the Earth's magnetic field is the angle between a horizontal plane and the direction of the field.

Explanation / Answer

Magnetic declination is the angle between magnetic north (the direction the north end of a compass needle points) and true north. The declination is positive when the magnetic north is east of true north. Magnetic inclination is the angle made by a compass needle when the compass is held in a vertical orientation.

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