Setting the angle and style for the magnetic north arrow

A magnetic north arrow points to the magnetic north pole, which is the direction indicated by a magnetic compass.

To set the angle and style for a magnetic north arrow

In the North Arrow Properties window, click the Magnetic North tab.
Make sure the Show magnetic north arrow check box is selected.
In the Angle box, type or select a value to represent the counterclockwise rotation that you want to apply so that the arrow points north, and from the list to the right, select a unit of angular measurement.
Beside Style, click the button, and then create an arrow style (see Selecting a style).
To add a label to the arrow, make sure the Show arrow label check box is selected, and then in the box to the right, type or select the label you want.
To customize the position of the label, click Advanced.
To select a style for the label text, beside Style, click the button, and then create a font style.