...through the point, that contains the line of force, is called the plane of the magnetic meridian; just'as the vertical plane, that passes through the geographical...'elements' there are other terms that need explanation. CH. m. MAGNETIC MEASUREMENTS 3 1 Variations are changes taking place (from hour to hour, day to day,...

...field of force in their vicinity. This disturbance of the field is of especial importance in ships, since there it may bear a large proportion to the...measured in CGS units, as explained in Chapter II. § 8. Variations are changes taking place (from hour to hour, day to day, year to year, and age to age) in...

...pressure due to the movement of a wire and a magnetic field with respect to each other will increase as the angle between the direction of the lines of force and the path in which the wire moves increases, and it will be a maximum when the wire moves in a path perpendicular...

...that is to say k = nl + »2 . . . . (4) It can also be shown that Wj = k cos a .... (5) where a is the angle between the direction of the lines of force and the normals to the orbital plane. Combined with (4) equation (5) states that cos a = — ~--- . . . (6)...

...numbers, that is to say k =«1+«2 . - (4) It can also be shown that nt = k cos a . . . • (5) where a is the angle between the direction of the lines of force and the normals to the orbital plane. Combined with (4) equation (5) states that cos a = i— . . (6) «j+«i...

...The value of the induced emf due to the movement of a conductor in a magnetic field will increase as the angle between the direction of the lines of force and the path in which the conductor moves increases, and it will be a maximum when the conductor moves in a...