Practcal 9 - Investigation of the energy stored in a capacitor

Question 1

What is the equation for the energy stored in a capacitor?

Answer 1

U = 1/2QV = 1/2CV^2

Question 2

What plot would give a straight line through the origin using the equation for the energy stored in a capacitor?

Answer 2

U vs V^2

Question 3

What would the gradient of a U v.s V^2 graph be?

Answer 3

C/2

Question 4

How can we check the value of our gradient in this practical?

Answer 4

Using a capacitance meter

Question 5

How would we obtain reliable data in this experiment?

Answer 5

-repeat the experiment
-re-build the connections and circuit