Question

The ratio of max. value to effevive value of an alternating quantity is called

Answer 1

The maximum value attained by an alternating quantity during one cycle is called its Peak value. It is also known as the maximum value or amplitude or crest value. The sinusoidal alternating quantity obtains its peak value at 90 degrees as shown in the figure below. The peak values of alternating voltage and current is represented by Em and Imrespectively.
It is correct