Emf of a dry cell is 1.5 V. It means that the cell can supply 1.5 joule of energy to move 1 coulomb of charge all around the circuit ( outside and inside the cell).
In uniform circular motion, 1. Speed is constant. 2. Velocity is variable and acts along tangential direction at a point. 3. Centripetal Force and acceleration act along the radius towards the centre if the circular path. 4. Centrifugal force appears to act radially outwards. It is a virtual ,fictitious force, not a real force.
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