# Question #ed6ce

##### 1 Answer

Oct 4, 2016

The function representing the variation of *voltage* with *time* is given by

**(a)** As it is a sine function , It will have

(1) a maximum value

when

So maximum value

(2) a minimum value

when

So minimum value

**(b)** we are to findout the time when first time

So putting

So taking

Hence first time at 0.91s