What is the capacitance, when the fuel tank is totally filled by the gasoline? Capacitance of the fuel tank
What is the capacitance, when the fuel tank is totally filled by the gasoline? Capacitance of the fuel tank
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What is the capacitance, when the fuel tank is totally filled by the gasoline?
Capacitance of the fuel tank
Transcribed Image Text:Use the following constants if necessary. Coulomb constant, k = 8.987 x 10° N - m² /C². vacuum permitivity, en = 8.854 × 10 12 F/m. Magnitude
of the Charge of one electron, e = -1.60217662 x 10-19 C. Mass of one electron, m. = 9.10938356 x 10-31 kg. Unless specified otherwise, each
symbol carries their usual meaning. For example, µC means micro coulomb.
Battery
Air
Fuel
A fuel gauge uses a capacitor to determine the height of the fuel in a tank. The effective dielectric constant kchanges from a value of 1 when the tank is
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 11 v is connected across the plates. For gasoline, dielectric constant kg You can ignore any
fringing effects.
Transcribed Image Text:d) What is the capacitance, when the fuel tank is totally filled by the gasoline?
Capacitance of the fuel tank
Give your answer to at least two significance digits.
Farad
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