AC (Alternating Current) and DC (Direct Current) motors are two types of electric motors that convert electrical energy into mechanical energy, differing primarily in the type of current they use: AC motors use alternating current, while DC motors use direct current. The AC motor can be used pumps, fans, industrial machines,.

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Solving Graphical Resultant Force IGCSE Here is how you solve Physics questions (Resultant Forces). Student must be able to use graphical method to determien the magnitured of force and also the direction of the force. Step is very simple since this question only requires basic math and some understanding.