*What do we know about parallel circuits-** *Total current is equal to sum of the current in the individual branches __I___{T}__ = I___{1}__ + I___{2}Component of each branch of a circuit share the same voltage as the cell __V___{1 }__= V___{2}__ = V___{T}Using ohms law__ V=IR,____ ____1/R___{T}__ = 1/R___{1}__ + 1/R___{2}__ __*What do we know about a series circuit -*Current has the same value at any point in the circuit __I___{T}__ = I___{1}__ = I___{2}Emf of the cell is equal to the sum of the potential difference across each resistor __V___{1 }__+ V___{2}__ = V___{T}Using Ohm's Law __V = IR, R___{T}__ = R___{1}__ + R___{2 }*Draw a diagram to help us understand how current and voltage vary in circuits*Calculate effective resistance -For series 12 + 12 = 24 ohmsFor parallel 1/12 + 1/12 = 1/ R where R = 6 ohms*Make sure ans is given in correct units**Reflect on question - what was the issue? Why were you not able to ans the q? What did you forget?*