Copper has a density of 8,96 g/cm2 The amount of 75,0 g of copper is added to 0,0500 litres of water in a graduated cylinder. The volume reading to which the water level in 118 cylinder will rise in mililitres is (a).

Volume reading rise to 58.37 mL

Explanation:

Given data:

Density of copper = 8.96 g/cm³

Amount of copper = 75.0 g

Volume of water in cylinder = 0.0500 L

Volume rise = ?

Solution:

First of all we will calculate the volume of copper. The volume rise up is equal to the volume of copper.

Formula:

d = m/v

8.96 g/cm³ = 75.0 g/ v

v =  75.0 g / 8.96 g/cm³

v = 8.37 cm³

cm³ = mL

Volume of water = 0.0500 L × 1000 mL / 1L

Volume of water = 50 mL

Volume reading rise to = 50 mL +  8.37 mL

Volume reading rise to 58.37 mL.

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current