In the given figure, each box represents a function machine. A function machine illustrates what it does with the input.

Write the relation between x and z.

Answer

`[M^(-3)L^(-2)T^(4)Q^(4)]`

Explanation

`[X]=["capacitance"]=[M^(-1)L^(-2)Q^(2)]` and
`[Z]=["Magnetic induction"]=[MT^(-1)Q^(-1)]`
Therefore
`[Y]=([X])/([Z]^(2))=([M^(-1)L^(-2)T^(2)Q^(2)])/([MT^(-1)Q^(-1)]^(2))=[M^(-3)L^(-2)T^(4)Q^(4)]`