Scientists have developed several hand signs to help you predict how magnetic forces act. They are called right hand rules because they involve using your right hand.
RIGHT HAND RULE #1 (RHR#1) FOR CONVENTIONAL CURRENT FLOW: Grasp the conductor with the thumb of the right hand pointing in the direction of the conventional, or positive, current flow. The curved fingers point in the direction of the magnetic field around the conductor.
RIGHT HAND RULE #2 (RHR#2) FOR CONVENTIONAL CURRENT FLOW: Grasp the coiled conductor with the right hand such that curved fingers point in the direction of conventional, or positive, current flow. The thumb points in the direction of the magnetic field within the coil. Outside the coil, the thumb represents the north (N) end of the electromagnet produced by the coil.
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