What is the magnitude of the electric field at a distance of 89 cm from a 27 μc charge, in units of n/c?

How are calculation for velocity and speed different

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Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.