A fuel gauge uses a capacitor to determine the height of the fuel in a tank. The effective dielectric constant Nchanges from a value of 1 when the tank i empty, to a value of 7, when the tank is full. The appropriate electronic circuitry can determine the effective dielectric constant of the combined air and fuel between the capacitor plates. The dimension of the fuel tank is width w = 19 cm, length L = 12 cm and breadth d = 18 cm. The height of the fuel between the plates is h = 7 cm. A battery with e.m.f of 17 u is connected across the plates. For gasoline, dielectric constant ki You can ignore any fringing effects. What is the capacitance, when 0.75 fraction of the fuel tank is filled by the gasoline? What is the capacitance, when the fuel tank is totally filled by the gasoline?

A fuel gauge uses a capacitor to determine the height of the fuel in a tank. The effective dielectric constant Nchanges from a value of 1 when the tank i empty, to a value of 7, when the tank is full. The appropriate electronic circuitry can determine the effective dielectric constant of the combined air and fuel between the capacitor plates. The dimension of the fuel tank is width w = 19 cm, length L = 12 cm and breadth d = 18 cm. The height of the fuel between the plates is h = 7 cm. A battery with e.m.f of 17 u is connected across the plates. For gasoline, dielectric constant ki You can ignore any fringing effects. What is the capacitance, when 0.75 fraction of the fuel tank is filled by the gasoline? What is the capacitance, when the fuel tank is totally filled by the gasoline?