Answer / Virendra Sharma

The two common methods to reverse the rotation of a DC shunt motor are: 1. Reversing the connections of the armature and field windings (commonly known as reversing switch). This method is simple and effective but can potentially cause higher mechanical stress due to the abrupt change in direction. 2. Using a controller like an H-bridge or a transistor-based circuit that allows for smooth and precise control of motor direction. The latter method is often considered better because it provides better control, longer motor life, and more efficient operation.

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