Right Hand Rule

The right hand rule is able to help people determine which way the current is flowing in an electromagnet and predict the direction of electromagnetic force.
RHR #1 for conventional current flow
The person grabs the conductor using their right hand with their thumb pointing in the direction of positive current flow. The direction that the hand wraps around the conductor is the direction of the magnetic field.
RHR #2
The right hand grabs the coil so that the fingers and pointed in the direction of conventional current. The thumb points to the North end of the electromagnet.