Assignment:
Electricity is distributed from electrical substations to neighborhoods at 1.5×104 . This is a 60 oscillating (AC) voltage. Neighborhood transformers, seen on utility poles, step this voltage down to the 120 that is delivered to your house.
Part A
How many turns does the primary coil on the transformer have if the secondary coil has 110 turns? Express your answer using two significant figures.
Part B
No energy is lost in an ideal transformer, so the output power from the secondary coil equals the input power to the primary coil. Suppose a neighborhood transformer delivers 300 at 120 .What is the current in the 1.5×104 line from the substation? Express your answer using two significant figures.
Provide complete and step by step solution for the question, use formulas.