Hello I have a question to ask you. Your help will be highly appreciated. Kindly refer to a scenario where a substrate material ‘B’ is coated both side with a coating material ‘A’. The whole thing is then connected to a voltage source. Here B is poorly conductive and A is highly conductive. If I want to apply Ohm’s law in the above circuit can I assume that there are 3 resistance in parallel (Namely top coating Ra,middle substrateRb,bottom coatingRa)? And can I further calculate the Req by combining these 3 resistance? If so then can we conclude that effective electrical resistance can be reduced if it is coated with high conductive material? How do I calculate the effective resistivity (of the combined coated material)? Your help would be highly appreciated. Thanks a lot in advance.