Answer:k=28.29 kN/m
Explanation:
Given
mass
height from which Elevator falls
Let x be the compression in the spring
thus From conservation of Energy Potential energy will convert in to Elastic Potential Energy of spring
----------1
also maximum acceleration is 5g
thus
here
Substitute x in equation 1
Answer:
The number of turns in secondary coil is 4000
Explanation:
Given:
Current in primary coil A
Current in secondary coil A
Number of turns in primary coil
In case of transformer the relation between current and number of turns is given by,
For finding number of turns in secondary coil,
Therefore, the number of turns in secondary coil is 4000