1. Express the Farad in S.I units

2. Spot the mistake (s)..

3. Which of our ways of measuring “electricity” is most closely related to energy?
Current
Charge
Potential Difference
Resistance
Conductance
Resistivity
Capacitance

4. What is the equation linking energy, charge and voltage?
Voltage = Energy/Charge
From this we can calculate the
energy transferred by the
movement of charge.
Energy = Charge flowing off capacitor
x Ave. voltage across capacitor

5. From last lesson, what did the graph of Voltage - charge look like?
What would be the equation that
would allow us to determine energy
from this graph?
Energy = ½ QV V
Energy Q

6. Use your previous knowledge and make
appropriate substitutions to give 2 more
versions of this equation.
Energy = ½ QV
But C = Q/V
Energy = ½ CV2
or Energy = ½ Q2/C