Convert litres into milli liitres

Convert liters to milli liters

The number of molecules present in one milli litre of a gas at STP is known as

A galvanometer of resistance 200 ohm gives full scale deflection with 15 milli ampere current. In order to convert it into a 15 volt range voltmeter, the value of resistance connected in series is :

What percent is :60 litres of 40 litres?