Electrical Potential difference & mechanical work – Numerical problems
Last updated on August 25th, 2023 at 01:22 pm
2) A 12 V pump for a fountain in a garden pond can pump water up to a height of 0.80 m at a rate of 4.8 litres per minute.
a) How much work does the pump do per minute when raising the water to a height of 0.80 m? (You may assume that one litre of water has a mass of 1 kg.)
b) If the pump is 75% efficient, how much charge passes through the pump motor in one minute?
c) What current does the motor take when operating under these conditions?
Solution:
