[" If an ac main supply is given to be "220V" .What "],[" would be the average e.m.f.during a positive "],[" half cycle "]

If an a.c. main supply is given to be 220V, the average e.m.f. during a positive half cycle will be

For a given AC source the average emf during the positive half cycle

The equation of an a.c. current I = 50 sin 100 pit .Find the average value of current in positive half cycle.

The ratio of rms value to the average value of current over positive half cycle for sinusoidal "AC" is

The average emf during the positive half cycle of an ac supply of peak value E_(0) is .

A step down transformer connected to an ac mains supply of 220V is made to operate at 11V, 44W lamp. Ignoring power losses in the transformer what is the current in primary circuit.